Answers
Answer:
1. Effects of Acid Rain on Fish and Wildlife
The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes.
2. Effects of Acid Rain on Plants and Trees
Dead or dying trees are a common sight in areas affected by acid rain. Acid rain leaches aluminum from the soil. That aluminum may be harmful to plants as well as animals. Acid rain also removes minerals and nutrients from the soil that trees need to grow.
3. Buffering Capacity
Many forests, streams, and lakes that experience acid rain don’t suffer effects because the soil in those areas can buffer the acid rain by neutralizing the acidity in the rainwater flowing through it. The soil becomes thin because of this and lacks the ability to adequately neutralize the acid in the rain water. As a result, these areas are particularly vulnerable and the acid and aluminum can accumulate in the soil, streams, or lakes.
4. Episodic Acidification
Melting snow and heavy rain downpours can result in what is known as episodic acidification. This can result in short-term stress on the ecosystem where a variety of organisms or species may be injured or killed.
5. Nitrogen Pollution
It’s not just the acidity of acid rain that can cause problems. Acid rain also contains nitrogen, and this can have an impact on some ecosystems. For example, nitrogen pollution in our coastal waters is partially responsible for declining fish and shellfish populations in some areas. In addition to agriculture and wastewater, much of the nitrogen produced by human activity that reaches coastal waters comes from the atmosphere.
Explanation:
Not sure if this is what the question was asking for.
Acid rain is defined as rain or any other kind of precipitation that is particularly acidic, including high quantities of hydrogen ions. Acid rain has a pH lower than drinking water, ranging from 4-5 on average.
What are the different system interactions for acid rain ?1. Acid Rain's Impact on Fish and Wildlife
Acid rain's biological consequences are most visible in aquatic areas such as streams, lakes, and marshes, where it can affect fish and other species. Acidic rain water can drain aluminum from soil clay particles as it passes through the soil and into streams and lakes.
2. Acid Rain's Effects on Plants and Trees
In acid rain-affected locations, dead or dying trees are prevalent. Aluminum is leached from the soil by acid rain. Aluminum may be damaging to both plants and animals. Acid rain also depletes the soil of minerals and nutrients required by trees to develop.
3. Capacity for Buffering
Many woods, streams, and lakes that experience acid rain remain unaffected because the soil in such locations can buffer the acidity in the precipitation flowing through it. As a result, the soil becomes thin and unable to effectively neutralize the acid in the rain water. As a result, these locations are more sensitive, and the acid and aluminum can build up in the soil, streams, and lakes.
4. Acidification on Occasional Basis
Melting snow and strong rain can cause a condition known as episodic acidification. This can cause short-term stress in the environment, injuring or killing a range of creatures or species.
5. Nitrogen Pollution
Not only may the acidity of acid rain cause difficulties. Acid rain includes nitrogen, which can have an influence on some ecosystems. Nitrogen contamination in our coastal waterways, for example, is partly to blame for dwindling fish and shellfish populations in some locations. Aside from agriculture and sewerage, much of the nitrogen created by human activities that reaches coastal waterways originates in the atmosphere.
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Related Questions
Sex determination in mammals is due to the SRY region of the Y chromosome. An abnormality of this region could allow which of the following to have a male phenotype?A) Turner syndrome, 45, XB) translocation of SRY to an autosome of a 46, XX individualC) a person with an extra X chromosomeD) a person with one normal and one shortened (deleted) XE) Down syndrome, 46, XX
Answers
The correct option is B ; Translocation of SRY to an autosome of a 46, XX individual , The SRY gene codes for the protein known as the sex-determining region Y protein.
This protein is involved in the formation of male-typical sex, which normally follows a certain pattern based on an individual's chromosomes. Each cell in a person typically contains 46 chromosomes.
The gene SRY (sex determining region of the Y), situated near the distal end of the Y chromosome's short arm, is required for male sex determination in animals. SRY starts the chain of events that leads to the formation of a testis from an undifferentiated gonad.
In animals, the SRY gene (blue band) on the male Y chromosome governs sex determination. The presence of a Y chromosome determines sex in placental animals. Normally, female cells have two X chromosomes, whereas male cells have one.
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Sex determination in mammals is because of the SRY region located on the Y chromosome. An abnormality in this region could allow: (B) translocation of SRY to an autosome of a 46, XX individual.
SRY region on Y chromosome is the sex determining region or a gene to be specific. The gene is present on the distal region of the short arm of the chromosome. It possesses the potential to begin a cascade of steps that initiate the formation of testis.
Translocation is defined as the process of rearrangement pf chromosomes where a piece of chromosomes detaches and joins another chromosome. This process may or may not result in the loss of genes and as a result the normal functioning related to those chromosomes will be affected.
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PLZ HELP
Recall from the video why homeostasis is so important. What could happen if the interactions between the parts of the body did not operate properly to maintain homeostasis?
Answers
Answer:
the most frequent thing so that homeostasis does not occur is the imbalance of some of the systems, such as the respiratory or endocrine, among others ... and also the state of shock of the organism.
Explanation:
The states of shock are as follows:
hypovolemic or hypervolemic shock, hypo or hyperglycemic shock, anaphylactic shock, hypotensive or hypertensive shick.
These shocks are very difficult to reverse, they quickly deregulate homeostasis and also require a rapid medical response.
please asnwer A and B
A. How is the blood in the pulmonary arteries different from blood in other arteries?
B. How is the blood in the pulmonary veins different from blood in other veins?
Answers
Pulmonary artery carry deoxygenated blood while are there arteries carry oxygenated blood.
pulmonary vein carries oxygenated blood while the other veins carry deoxygenated blood
PLEASE I NEED HELP ASAP :(
Answers
Answer:
b
Explanation:
the rest just wont help when you are trying to identify them
the 5’ end of the dna molecule is considered ____, while the 3’ end of the dna molecule is considered the _____
Answers
The 5’ end of the dna molecule is considered five prime, while the 3’ end of the dna molecule is considered the three prime.
Thus, The backbones of DNA's two long polymers of basic units, known as nucleotides, are comprised of sugars and phosphate groups that are connected by ester bonds.
These two strands are anti-parallel because they move in the opposite directions of one another. Each sugar has one of four different nucleobases (bases) molecules attached to it.
The genetic code is made up of the order of these bases, and it subsequently dictates the order of the amino acids in proteins. The 5′ (five prime) and 3′ (three prime) ends of DNA strands are referred to as the ends.
Thus, The 5’ end of the dna molecule is considered five prime, while the 3’ end of the dna molecule is considered the three prime.
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What are biological pumps and Carbonate pump? In ocean...
Answers
Answer:
The carbonate pump is sometimes referred to as the “hard tissue” component of the biological pump. ... While the biological carbon pump fixes inorganic carbon (CO2) into particulate organic carbon in the form of sugar (C6H12O6), the carbonate pump fixes inorganic bicarbonate and causes a net release of CO2
Explanation:
the events listed are parts of the overall process of photosynthesis. for each event, identify the chloroplast structure that facilitates the event. each structure may be used once, more than once, or not at all.
Answers
Answer: ribosomes are blue
Explanation: because u said hallo to my friends
can someone help me arrange this pls ?!?
Answers
Answer:
anaphase,metaphase,prophase,telophase
Both the euglena and paramecium seen here have___?A. chlorophyll and are producersB. projections that help them moveC. specialized cells to detect light.D. a macronucleus and a micronucleus.
Answers
Both Euglena and Paramecium have projections that help them move, being Protists unicellular organisms, however between these are more differences than similarities since Paramecium is closer to animals traits while Euglena to plants.
Which of the following did Mendel conclude about patterns of inheritance?
A. An organism inherits one gene from each parent.
B. The two genes of a given trait separate, or segregate, during gamete production.
C. Similar forms of genes account for variation in the inherited traits.
D.Organisms inherit one gene for each trait.
Answers
Answer:
B
Explanation:
I took the test and got this one right (happy to help)
Answer:
B. The two genes of a given trait separate, or segregate, during gamete production.
Explanation:
B. The two genes of a given trait separate, or segregate, during gamete production.
list two differences between dominant and recessive trait and what present in plant in F2 generation by around in mental cross between round and wrinkled plant
Answers
A round seed phenotype and the dominant allele for the roundness trait were present in three-fourths of the f2 plants. Dominant covers the trait of recessive.
What is dominant?An allele is a gene form that can appear as a pair and exhibit either a homozygous or heterozygous phenotype of a characteristic.
Both dominant and recessive forms of the trait can be expressed by these genes. When two organisms are crossed, the F2 generation of the progeny exhibits three phenotypes: homozygous dominant, heterozygous dominant, and recessive.
Therefore, the roundness trait was present in three-fourths of the f2 plants.
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Two Andalusian chickens are crossed to produce offspring. One parent has black feathers and the other parent has white feathers. In this type of chicken, feather color is a trait that exhibits incomplete dominance.
Answers
In the chickens
Answer:
answer is D
All of the chicks will have only gray feathers.
Explanation:
hope this helps!
Which of the following is an example of a physical trait? A. nesting B. hair color C. burrowing D. cystic fibrosis
Answers
Answer:
B. hair color
Explanation:
A physical trait generally means something you can see with the naked eye and discern what it is. Hair color is a physical trait, because you can tell what the person's general hair color is just by looking at it.
~
Answer:
B) hair color
Explanation:
um a physical traits are features or characteristics about your body so I eliminated the answer choices that were not features about your body and that's how I got my answer
i'm bad at explaining
4. Multicellular organisms are composed of more than one cell, with groups of cells being different to take on specialized functions. Students were classifying organisms based on cell structure. A student made a claim that organisms in a specific kingdom are always multicellular. Which kingdom is the student making a claim is about?
A. Plant
B. Archaea
C. Protist
D. Bacteria
Answers
Multicellular organisms are made up of many cells, and the kingdom plant consists of multicellular organisms. So, option A is correct for this paragraph. All the others that are mentioned here consist of some sort of unicellular organism.
What is a kingdom plant?Plantae is a kingdom made up of individuals that are photosynthetic and multicellular in nature, with chloroplasts in each cell. Photosynthesis converts carbon dioxide and water into glucose and oxygen, and this process does not happen in most other unicellular and multicellular organisms because they lack chloroplasts. Bactreia, protista, and archaea consist of most unicellular individuals, so these three options can't be correct.
Hence, the option saying "plant" is correct as most of the individuals are multicellular.
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4. (15) Some dog breeds are either black (BB, Bb) or brown (bb). However, the ability to create pigment (colour) is the result of a separate gene. For black or brown color to show, the AA or Aa must also be present; if not, the aa genotype results in no colour (albino/white). All responses must include the dihybrid Punnett squares with the results clearly stated. lting from a croce between two completely
Answers
The color of dog breeds can be black (BB or Bb) or brown (bb), and the ability to create pigment depends on the presence of the A gene (AA or Aa). The aa genotype results in no color (albino/white). Punnett squares can be used to predict the possible genotypes and phenotypes resulting from a cross between two dogs.
To determine the possible outcomes of a cross between two dogs, we can use a dihybrid Punnett square. Let's assume one dog is black (BbAa) and the other is brown (bbAA).
The Punnett square for the BbAa x bbAA cross would look like this:
Bb Ba
bb | Bbba | Bbaa
bb | bbba | bbba
From the Punnett square, we can see that there are four possible genotypes for the offspring: Bbba, Bbaa, bbba, and bbba. Among these genotypes, the Bbba and Bbaa genotypes will result in black-colored dogs, while the bbba and bbba genotypes will result in brown-colored dogs.
It's important to note that the presence of the A gene is necessary for color to be expressed, so the aa genotype would result in no color (albino/white) regardless of the B gene.
In summary, the use of a dihybrid Punnett square allows us to predict the possible genotypes and phenotypes of offspring resulting from a cross between dogs with different color and pigment gene combinations.
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Can you please tell me 3 different mechanisms that lead to the formation of saltations?
Answers
Answer:
In biology, saltation (from Latin saltus 'leap, jump') is a sudden and large mutational change from one generation to the next, potentially causing single-step speciation. This was historically offered as an alternative to Darwinism. Some forms of mutationism were effectively saltationist, implying large discontinuous jumps.
Speciation, such as by polyploidy in plants, can sometimes be achieved in a single and in evolutionary terms sudden step. Evidence exists for various forms of saltation in a variety of organisms.
History
Further information: Alternatives to evolution by natural selection
Prior to Charles Darwin most evolutionary scientists had been saltationists.[1] Jean-Baptiste Lamarck was a gradualist but similar to other scientists of the period had written that saltational evolution was possible. Étienne Geoffroy Saint-Hilaire endorsed a theory of saltational evolution that "monstrosities could become the founding fathers (or mothers) of new species by instantaneous transition from one form to the next."[2] Geoffroy wrote that environmental pressures could produce sudden transformations to establish new species instantaneously.[3] In 1864 Albert von Kölliker revived Geoffroy's theory that evolution proceeds by large steps, under the name of heterogenesis.[4]
With the publication of On the Origin of Species in 1859 Charles Darwin wrote that most evolutionary changes proceeded gradually but he did not deny the existence of jumps.
From 1860 to 1880 saltation had a minority interest but by 1890 had become a major interest to scientists.[5] In their paper on evolutionary theories in the 20th century Levit et al wrote:
The advocates of saltationism deny the Darwinian idea of slowly and gradually growing divergence of character as the only source of evolutionary progress. They would not necessarily completely deny gradual variation, but claim that cardinally new ‘body plans’ come into being as a result of saltations (sudden, discontinuous and crucial changes, for example, the series of macromutations). The latter are responsible for the sudden appearance of new higher taxa including classes and orders, while small variation is supposed to be responsible for the fine adaptations below the species level.[6]
Explanation:
Why does angiogenesis impair vision?
Answers
Excessive vascular growth contributes to numerous disorders, and the list is growing rapidly. Cancer, arthritis, psoriasis, and blinding retinopathy are already known disorders associated with excess angiogenesis.
What is angiogenesis?Angiogenesis is how the body forms new blood vessels. This is a normal part of growth and healing. But sometimes angiogenesis can play a role in diseases such as cancer. To grow, a tumor needs nutrients and oxygen from your blood.
Moreover, the ocular angiogenesis is related to a broad spectrum of disorders such as wet age-related macular degeneration (AMD), diabetic retinopathy, retinal artery or vein occlusion, retinopathy of prematurity (ROP), neovascular glaucoma, and corneal neovascularization secondary to infectious or inflammatory processes.
Therefore, if some tissues aren't receiving enough oxygen (hypoxia), cells in the affected area send out chemical signals that cause angiogenesis to begin.
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On the basis of the RR and etiologic fractions associated with smoking from lung cancer and coronary thrombosis, which one of the following statements is most likely to be correct?
a. Smoking seems much more likely to be causally related to coronary thrombosis than to lung cancer.
b. Smoking seems much more likely to be causally related to lung cancer than to coronary thrombosis.
c. Smoking seems to be equally causally related to both lung cancer and coronary thrombosis.
d. Smoking does not seem to be causally related to either lung cancer or coronary thrombosis.
e. No comparative statement is possible between smoking and lung cancer or coronary thrombosis.
Answers
Answer:
do it yourself
Explanation:
What does the light red layer between the white lumen and blue lamina propria consist of
Answers
Explanation: lymphocytes in the epithelial layer with the villi (light red) and not the ones in the lamina propria at the base of the epithelial cells (blue stain
The light red layer between the white lumen and blue lamina propria consist of - options B. epithelium cells.
A type of connective tissue present under the thin layer of tissues covering a mucous membrane is called the lamina propria.
It is a large layer of connective tissueseparates the innermost layer from a layer of smooth muscle tissue.it s a light red layer barrier between the white lumen and blue lamina made up of epithelium cells.found in the respiratory tract, the GI tract, and the urogenital tract.Thus, the correct answer is - option B. epithelium cells.
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(ix) Rh blood group system is encoded by three genes C, D and E which occupy----
tightly linked loci
(A) four
(B) three
(C) five
(D) two
Answers
Rh blood group system is encoded by three genes C, D and E which occupy 3 tightly linked loci. Option B
What should you know about Rh blood group system?The Rh blood group system is typically considered to be encoded by three loci namely; one for RHD, and two for the RhCE (C and E) antigen variations.
The RHD locus is known to encode the D antigen, which is the most important Rh antigen.
The RhCE locus encodes the C and E antigens, which are less common than the D antigen.
The Rh blood group system is important for blood transfusions, as it determines whether or not a person's blood is compatible with another person's blood.
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2
A student takes two herbicide-resistant weeds and determines that the allele for herbicide resistance is dominant (H). The genotype of each plant is HH and Hh
respectively. In a cross between these two weeds, what percentage of the offspring would be resistant to herbicide?
A) 50%
B) 100%
0%
25%
Answers
Answer:
(B)
Explanation:
What is the differences of mitosis and meiosis
Answers
mitosis refers to the parts of the original nucleus into two nuclei. On the other hand, meiosis refers to each having half chromosomes of the original cell.
in mitosis, there is the maintenance of chromosomes takes place while meiosis leads to a reduction in the no. of chromosomes. There are no variations in mitosis and variants occur in meiosis.
hence at last we can say that the above are the major difference between mitosis and meiosis. All of the explained differences will clearly lead to identifying them in particular. mitosis and meiosis plays a vital role in formation of gametes.
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inter calary meristem is also called as
Answers
Answer:
Intercalary meristem is a type of meristematic tissue associated with the growth in length in the middle position, thus the name. In particular, it is made up of meristematic cells that divide mitotically in the stem at the base of nodes and leaf blades. The growth at this point is referred to as intercalary growth.
Explanation:
hopw this helps :)
B. Liverworts (Hepatophyta)
1. Observe the living green "leafy" gametophyte stage at Station A. These organisms have leaf-
like, stem-like, and root-like structures. Draw and label structures of the liverworts. Be sure
to include labels of the following items: gametophyte, n, sporophyte, 2n, rhizoides, leaf-like
structures, and thallus.
2. Use the dissecting scope and look at the sporophyte, gametophore, rhizoides, and thallus.
What do you notice? Write down some observations of each.
3. Compare the moss to the liverworts. How are they similar and how are they different?
Answers
Answer:
Explanation:
Title: Observation of Liverworts (Hepatophyta)
Objective: To observe the living green "leafy" gametophyte stage of liverworts and compare them with moss.
Hypothesis: Liverworts and moss may share some similarities in structure, but there may be significant differences between them.
Observations:
Liverworts Structures:
Gametophyte: The main plant body of the liverwort, which is haploid (n) and produces gametes.
Sporophyte: A structure that grows from the gametophyte and produces spores. It is diploid (2n).
Rhizoides: Root-like structures that anchor the gametophyte to the substrate and absorb water and nutrients.
Leaf-like structures: Flattened structures that resemble leaves but do not have true veins or stomata.
Thallus: The entire plant body of the gametophyte, which lacks true stems or roots.
Observations of different structures in liverworts:
Sporophyte: Small and inconspicuous, growing from the gametophyte.
Gametophore: The stem-like structure that supports the gametophyte and sporophyte.
Rhizoides: Thread-like structures that attach the gametophyte to the substrate and absorb water and nutrients.
Thallus: The plant body of the gametophyte that lacks true stems or roots.
Comparison between liverworts and moss:
Similarities:
Both are non-vascular plants.
Both have a haploid (n) gametophyte and a diploid (2n) sporophyte stage.
Both reproduce by spores and require water for fertilization.
Differences:
Liverworts have leaf-like structures and a thallus, while mosses have true leaves and stems.
Liverwort sporophytes are small and inconspicuous, while moss sporophytes are tall and conspicuous.
Liverworts have rhizoides, while mosses have true roots.
WILL MARK AS BRAINLIEST:
Microevolution is changes in the frequency of genes in a gene pool. According to this definition what is the smallest biological unit that can evolve?
Answers
population
The smallest biological unit that can evolve is population.
In order words, population is the smallest unit of living organisms that can undergo evolution.
What is population?Population can be defined as a group of living organisms of the same species interbreeding together in a particular area or environment
So therefore, the smallest biological unit that can evolve is population.
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3. Think of a bag of cake flour. You can pour the cake flour out of the bag and into a mixing bowl. Does this mean the flour is a liquid? Explain whether you think the cake flour (and all powders) are solids or liquids.
Answers
Answer:
The powder is a solid.
Explanation:
liquids have freely moving atoms that take availabke space when poured into something. the flour may be freely moving and the flour may change to fit the container, but, the individual flour particles are not liquid.
The cake powder is solid, and it is poured into the cake bowl because, if it were liquid, the flour would have filled the container and been free-flowing, but that is not the case here.
What is the significance of the cake flour?The cake flour is the powdery solid particles that can be mixed with eggs and other products along with the yeast for the better formation of the pores in order to get the proper flavor and texture of the cake, and apart from that, there are several varieties of cakes available. To give the cake the desired texture, the appropriate amount of mixing products is added.
Hence, the cake powder is solid, and it is poured into the cake bowl because, if it were liquid, the flour would have filled the container and been free-flowing, but that is not the case here.
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When the head is tilted, what are the structures the signal passes through on its way to becoming a fully processed neural signal within the brain?
When the head is tilted, the fluid within the_____of the inner ear moves. The exact location of stimulated cells depends on the plane of movement-with each plane being represented by a different part of that structure. The movement of fluid stimulates______which transduce the signal into an electrical signal. This signal travels through the_____nerve to the____nucleus of the_____.
Answers
Answer:
The fluid within the semicircular ducts of the inner ear, that is, endolymph moves when the head is tilted. The precise position of the stimulated cells relies upon the plane of movement with each vertical or horizontal plane being signified by distinct parts of its composition. The hair cells that transduce the signal into an electrical signal get stimulated due to the movement of fluid. The conduction of this signal takes place via the auditory nerve to the cochlear nucleus of the brainstem.
Within the inner ear cochlea, the stimulation of the hair cells or stereocilia takes place by endolymph, it is a fluid present in semicircular ducts. After stimulation, the hair cells mediate electric signals to the brain via the auditory nerve, these are the nerve bundles that carry signals of sound. The initial central auditory composition found in the brainstem is the Cochlea nucleus.
Answer:
the fluid within the -semicircular canals- of the inner ear moves. the movement of the fluid stimulates the -hair cells- which transduce the signal into an electric signal. This signal travels through the -vestibulocochlear nerve- to the vestibular nucleus of the -medulla oblongata-.
Explanation:
11.
requires two parent organisms, while
A. Sexual reproduction; asexual reproduction
B. Asexual reproduction; sexual reproduction
C. Cell growth; cell division
D. Genetic diversity; sexual reproduction
produces offspring that are genetically identical to the parent cell.
Answers
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The correct answer is B. Asexual reproduction; sexual reproduction.
Asexual reproduction refers to a type of reproduction that involves only one parent organism. The offspring produced through asexual reproduction are genetically identical or clones of the parent organism.
On the other hand, sexual reproduction requires two parent organisms, typically of different sexes or mating types. During sexual reproduction, genetic material from both parents combines through processes such as fertilization or mating, resulting in offspring that inherit a unique combination of genes from both parents. This introduces genetic diversity among the offspring, as they are not genetically identical to either parent.
So, while asexual reproduction leads to genetically identical offspring, sexual reproduction promotes genetic diversity among the offspring.
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♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
Answer:
B. Asexual reproduction; sexual reproduction
Explanation:
Asexual reproduction is a type of reproduction in which a single parent organism produces offspring that are genetically identical to the parent. Sexual reproduction, on the other hand, requires two parent organisms, and the offspring are a combination of genetic material from both parents.
So the answer is B.
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There are ____ molecules of air at high elevations, so air pressure is less. a. fewer c. more b. the same number of d. no Please select the best answer from the choices provided A B C D
Answers
Answer:
A. Fewer
Explanation:
This is the only answer that makes sense
A poison placed on the tips of darts by natives of the Amazon rainforest paralyzes prey such as small mammals. Which
of the prey's cells are most likely affected by the poison?
Answers
Explanation:
Muscle Sense
The poison dart frog gets its name from a group of Amazon indigenous people who cover the tip of their darts with the frog poison to kill their prey