Answers
Answer:
Leaves have an increased surface area in order to increase light-harvesting and they are thin in order to increase the diffusion rate
Explanation:
Leaves have several adaptations to increase the photosynthesis rate. In the first place, leaves have a large surface area to increase light-harvesting and thus also increase photosynthetic energy conversion. Moreover, leaves are sufficiently thin to increase the gas exchange surface area, i.e., the entry of carbon dioxide (CO2) and the exit of oxygen from photosynthesis, which move by diffusion through stomata.
Related Questions
A pathogenic bacterium has been engulfed by a phagocytic cell as part of the nonspecific (innate) immune response. What would be the best response?
Answers
Complete question:
A pathogenic bacterium has been engulfed by a phagocytic cell as part of the innate immune response. Which of the following illustrations best represents the response? Illustrations in the attached files.
Answer:
Graph C best represents the response
Explanation:
Phagocytosis occurs when the phagocyte incorporates a new solid substance, such as a bacteria. Phagocytosis is a function of specialized immunological system cells. They are capable of removing strange bodies from the immune system as a first natural defense line. The phagocyte membrane invaginates and surrounds the strange body, which is traped and included in an endocytic vesicle called a phagosome. This vesicle often fusses a lysosome which releases its enzymes into the phagosome. These enzymes are in charge of digesting or destroying the strange content. After that, the produced wastes are removed from the cell.
Prevent change of pH = 100% x (pH 1.46 -pH 7.00) / (pH 7.00)
Answers
Answer:
Solving this equation gives a result of approximately -79%
Explanation:
It appears that you are trying to calculate the percentage change in pH between two values, pH 1.46 and pH 7.00. To do this, you can use the formula:
Percentage change in pH = 100% x (pH 1.46 - pH 7.00) / (pH 7.00)
Plugging in the values, the formula becomes:
Percentage change in pH = 100% x (-5.54) / 7.00
Solving this equation gives a result of approximately -79%. This means that there was a 79% decrease in pH from pH 1.46 to pH 7.00.
It is important to note that this formula is used to calculate the percentage change in pH between two values. If you are trying to prevent a change in pH, the formula would not be applicable.
How is the nitrogen cycle important to humans?
A.It produces free nitrogen that humans can breathe.
B.It converts nitrogen into a form that humans can obtain by eating other organisms.
C. It produces nitrogen compounds that humans can breathe.
D. It converts nitrogen into a form that humans can obtain by absorbing it through their skin.
Answers
The nitrogen cycle is important to humans in the following way: it converts nitrogen into a form that humans can obtain by eating other organisms (option B).
What is the nitrogen cycle?Nitrogen cycle is the natural circulation of nitrogen in a series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.
During the nitrogen cycle, atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain, where it is assimilated by plants and either eaten by animals (and returned as faeces) or decomposed back to elemental nitrogen by bacteria.
The usable form of nitrogen that is assimilated by plants becomes accessible to humans when they consume the plants, hence, depicting the importance of the nitrogen cycle.
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what is the analogy between the vacuole and a school?
Answers
Answer:
The vacuoles is like the cabinets in the school used to store items. where we release all of our energy. Cytoplasm is like the hallways of the school.
what is meaning of semenation
Answers
Answer:
I think you have spelt it wrong, it is cementation
Explanation:
Definition of cementation
1 : a process of surrounding a solid with a powder and heating the whole so that the solid is changed by chemical combination with the powder. 2 : the act or process of cementing : the state of being cemented.
Explanation:
After Having intercourse
Female look at male partner
And her partner semen at her in the end.
Would a horse make a good model genetic organism
Answers
While horses have been used in genetic studies and have contributed to important research, they are not typically used as model genetic organisms like fruit flies, mice, or zebrafish.
What is the genetic organism?The above is due to several reasons, including their large size, long generation time, and limited genetic tools and resources compared to other model organisms.
Firstly, horses have a relatively long generation time, which means it takes a longer time to produce offspring, making genetic experiments more time-consuming and costly.
Additionally, ethical considerations may limit the use of horses in research. However, horses have been studied for traits such as coat color, gait, and disease susceptibility, and continue to be an important species in veterinary and equine science research.
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What other organizations did Dr. Shakur partner with?
Answers
BTW I AM GAY SO COME TO STARBUCKS AT TARGET AND MEET ME
what are the two main categories of an ecosystem 5th grade
Answers
Which statements describe the fossil record? Select three options.
There is very little fossil evidence for the first 4 billion years of Earth.
There is very little fossil evidence for the last 600 million years of Earth.
Most of the fossil evidence is from the first 4 billion years of Earth.
Most of the fossil evidence is from the last 600 million years of Earth.
The fossil record is complete.
The fossil record is not complete.
Answers
Answer:
the last one
the 4th one
the 2nd one
Answer:
1, 4, 6 or a, d, f
Explanation:
What is the bottom layer in the soil?
topsoil
parent rock
humus
subsoil
Answers
Answer:
my answer is: subsoil
Explanation:
Answer:
Parent rock, also now as bedrock
Explanation:
Researchers have historically considered the human appendix to be a vestigial structure. What evidence, if true, would best disprove this claim?
A.
The appendix was used to help digest leaves in the ancestors of humans, but it appears to serve no function in modern humans.
B.
Chimpanzees also have an appendix, and humans and chimpanzees inherited the appendix from the same ancestor.
C.
Cows have an appendix to help them digest grass, but it evolved independently from the appendix found in humans.
D.
The human appendix helps to maintain the health of the gut, and arose fairly late in the evolutionary history of mammals.
Answers
The evidence that would best disprove the claim that the human appendix is a vestigial structure is option D. The human appendix helps to maintain the health of the gut and arose fairly late in the evolutionary history of mammals.
1. Option A suggests that the appendix was used to help digest leaves in the ancestors of humans but serves no function in modern humans. While this statement implies that the appendix may have had a purpose in the past, it does not directly disprove the claim that it is vestigial.
2. Option B states that chimpanzees also have an appendix and that humans and chimpanzees inherited the appendix from the same ancestor. This evidence supports the idea that the appendix has been conserved through evolution and suggests that it may serve a function in both species. However, it does not directly disprove the claim of the appendix being vestigial.
3. Option C mentions that cows have an appendix to help them digest grass, but it evolved independently from the appendix found in humans. This statement provides an example of another species with a functional appendix, but it does not specifically address the status of the human appendix.
4. Option D is the most compelling evidence to disprove the claim. It states that the human appendix helps maintain the health of the gut and arose fairly late in the evolutionary history of mammals. This suggests that the appendix has a beneficial role in humans and is not simply a vestigial remnant.
Therefore, option D presents the strongest evidence that would best disprove the claim that the human appendix is a vestigial structure.
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The graphs below show the energy changes as proteins are broken down by pepsin enzymes.
energy
barrier
free energy
reactants
O A
O
E.
AG
products
course of reaction
energy
barrier
reactants
Graph 1
Which of the following best describes the graphs above?
NE
course of reaction
Graph 2
AG
products
Graph 1 shows a reaction without an enzyme because the activation energy is lower than in Graph 2.
Graph 1 shows a reaction with an enzyme because the activation energy is higher than in Graph 2.
O c
Graph 2 shows a reaction without an enzyme because the activation energy is higher than in Graph 1.
OD Graph 2 shows a reaction with an enzyme because the activation energy is lower than in Graph 1.
Answers
Answer:
What is your question here?
Explanation:
which of the following facts underlies the application of rna interference in the treatment of disease?
Answers
Sometimes it is possible to halt faulty gene activity from producing undesirable proteins.
What happens during RNA interference?RNAi stands for "RNA interference," a process in which tiny RNA fragments can stop the translation of proteins by attaching to the messenger RNAs that encode those proteins. RNA interference is a natural mechanism that affects immunity and the control of protein synthesis.
What is an example of RNA interference?A method of producing highly effective and purified siRNAs directly from Escherichia coli cells is another example of RNAi technology. This method was developed in response to the unexpected finding that ectopic expression of p19, a plant viral siRNA-binding protein, helps to stabilize a cryptic siRNA-like RNA species in bacteria.
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B.
Compare the following animals.
1. snake and lizard
2. fish and eel
3. dove and duck
Answers
Answer:
This is easy
Explanation:
1. They are both reptiles.
2. They are both fish.
3. They are both birds.
A hetero gous ail yellow plant is crossed with a homorygous short green. Show the genoype od phenotypes of the Fi offspring and the probability of each.
Answers
The genotype of the F1 offspring is YyTt, and the phenotype is yellow and tall. The probability of each phenotype in the F1 offspring is as follows yellow and tall is 1/2 or 50%, green and short is 1/2 or 50%.
The genotype and phenotype of the F1 offspringGenotype refers to the genetic makeup or combination of alleles present in an organism, while phenotype refers to the observable traits or characteristics expressed by an organism. Genotype represents the genes an organism carries, while phenotype represents the physical or observable features resulting from the interaction between genotype and the environment.
When a heterozygous ail yellow plant (genotype Yy) is crossed with a homozygous short green plant (genotype tt), the F1 offspring will have the genotype YyTt and the phenotype of yellow and tall. The probability of this phenotype occurring in the F1 generation is 50%. Additionally, there is a 50% probability of the F1 offspring having the phenotype of green and short.
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Although the total distance the impulse travels in the reflex arc is less than 3
metres. the time taken is more than 0.04 seconds. Suggest why the time taken is
more than expected.
Answers
Although the total distance the impulse travels in the reflex arc is less than 3 meters. the time taken is more than 0.04 seconds and the time taken is more than expected because of Synapses or due to gaps between neurons.
Diagram displays the whole reflex arcs from the tip of the finger to the spinal cord and then back out to a closer muscle, possibly in the forearm or the arm. Because the signal doesn't have to go all the way back to the finger, the total distance is less than 3 meters. Considering that it just travels back a portion of the way, less than 3 meters, it takes. Let's see, it takes more than twice as long, therefore the query makes us think about why the delay. Where is the hold-up what is happening there, and the key to this is that the gray matter of the spinal cord doesn't truly contain mylin, despite the fact that we said it- accelerates electrical conduction through the axon in the nerves of the extremities. Mylin has a whitish color, which contributes to the white matter's appearance of whitishness. Thus, the electrical signal becomes slower.
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What is not true about parasite-host relationships? A. Both can be animals B. One can be a plant and the other an animal C. Both can be plants D. One must be an animals and the other one a plant
Answers
Answer:
one can be a plant and the other an animal
As DNA splits, what is added to the bases on the original strands?*
Answers
Answer:Nucleotide
Explanation:
List the genetic disorders found on chromosome 11.
Answers
Answer: autism (neurexin 1)
acute intermittent porphyria.
albinism.
ataxia–telangiectasia.
Beckwith–Wiedemann syndrome.
Best's disease.
beta-ketothiolase deficiency.
beta thalassemia.
Explanation:
Answer:
Jacobsen Syndrome
Explanation:
It's the deletion of the long arm of chromosome 11. Some symptoms are a small lower jaw, thin upper lip, droopy eyes, and down turned corners of the mouth. Hope this helps!
Which of the following is correct about mutations and genetic variation?
a
It must be present in a population before natural selection can act upon the population.
b
It arises in response to changes in the environment.
c
It tends to be reduced when diploid organisms produce gametes and reproduce.
d
It is created by the direct action of natural selection.
Answers
It arising in response to changes in the environment is correct about mutations and genetic variation.
What is Genetic variation?This can be defined as difference in DNA or characteristics in organisms. Meiosis brings about variation in organisms during reproduction.
Mutations and genetic variation arises in response to environmental changes thereby making option B the most appropriate choice.
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Please help!!
order these from simple to complex, molecules, atoms, organism, tissues, cells, organ systems, and organs
Answers
advantages and dis advantages of asexual reproduction in plants
Answers
Explanation:
Advantages Of the asexual reproduction
The organism that reproduces asexually has the ability to take many different extensive forms that allow asexual reproduction to succeed in various environments?
The asexual reproduction is only performed in the organisms that often stay in one place, It does not need mobility, So, most plants have a great ability to create their offspring as this process doesn’t need to move to another place.
Asexual reproduction has a rapid increase of offspring which is very helpful in producing lots of offspring, It lets the plants make lots of offspring effectively which will help them in increasing their genes.
Disadvantages Of Asexual Reproduction
Most organisms that only perform the asexual reproduction process have less chance to adapt to the changes of the environment as they need stable environments.
Only one parent plant is required for the asexual reproduction, the new plants are identical to the parent so that good features will always be passed on, the chromosomes and genes of the parent will be copied, So, there will be genetic defects or the mutation in the offspring with no exception.
The asexual reproduction does not have the genetic diversity, there is less variation produced with the offspring, and the organism becomes less adapted to certain environmental changes, the entire communities will not be adapted to the harsh environment.
The asexual reproduction usually leads to struggle for the existence as well as the overcrowding, and the main distinction of asexual reproduction from the sexual reproduction is that there is no need for two parents as well as special cells to reproduce.
How is transcription similar to replication and how is it different?
Answers
Answer:
Transcription and replication are important processes that occur in cells but have distinct differences.
Similarities between transcription and replication:
1. Both transcription and replication involve the synthesis of nucleic acids. In replication, DNA is copied to produce an identical DNA molecule, while in transcription, DNA is used as a template to produce RNA.
2. Both processes occur in the nucleus of eukaryotic cells, although replication also occurs in the cytoplasm of prokaryotic cells.
Differences between transcription and replication:
1. Template: In replication, the entire DNA molecule serves as the template for copying. However, in transcription, only a specific DNA segment, called a gene, serves as the template for synthesizing an RNA molecule.
2. Product: Replication results in the production of an identical DNA molecule, while transcription produces an RNA molecule that is complementary to the DNA template.
3. Enzymes involved: Replication requires the involvement of multiple enzymes, including DNA polymerase, helicase, and ligase. Transcription, on the other hand, involves RNA polymerase, which catalyzes the synthesis of RNA from the DNA template.
4. Base pairing: During replication, DNA bases pair with their complementary bases (A with T and C with G) to produce an exact copy. In transcription, RNA bases pair with complementary DNA bases (A with U and C with G), resulting in an RNA molecule complementary to the template DNA strand.
Overall, while transcription and replication involve the synthesis of nucleic acids, they differ in terms of their templates, products, enzymes involved, and base pairing patterns. These processes are essential for cell function and crucial in genetic information transfer and maintenance.
Explanation:
Which statements are true about molecules?
Select all that apply.
A) They are a group of atoms that are strongly joined.
B) They always contain different types of atoms.
C) They are the smallest unit of an element or a compound.
D) They always contain only one type of atom.
Answers
The statements that are true about molecules are:
They are a group of atoms that are strongly joined.They are the smallest unit of an element or a compound.WHAT IS A MOLECULE?
A molecule is a substance that consists of two or more atoms linked together by a chemical bond, usually covalent bond. A molecule can also be referred to as the smallest unit of a pure substance (element or compound) that retains the chemical properties of such pure substance.HOW CAN A MOLECULE BE FORMED:
Molecules can either be made up of atoms of same kind e.g two atoms of the same element coming together. E.g. oxygen gas (O2), hydrogen gas (H2), chlorine gas (Cl2)Molecules can also be formed when two or more atoms of different kinds come together e.g CO2, H2O etc.Therefore, the following statements about molecules are true:
They are a group of atoms that are strongly joined.
They are the smallest unit of an element or a compound.
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define biosorption??
Answers
what is biosorption?
Answer:-Biosorption is the ability of biological materials to accumulate heavy metals from wastewater through metabolically mediated or physico-chemical pathways of uptake.
hope this helps you...Which of these metals are magnetic?
a.copper
b.steel
c.nickel
d.tin
e.aluminum
Answers
Answer:
Metals that have iron are magnetic.
D. Tin
Explanation:
Hope it helps...........................................
What is the SOURCE of new traits in a species? Question 7 options: A Mutations
B Natural selection C Adaption D Evolution
Answers
Answer:
Your answer is A) Mutations.
Answer:
A) Mutations
Explanation:
Verified correct with test results.
what are some ways to ruse different types of paper so it does not end up in garbage?
Answers
Question 10
A new type of plant was discovered on a newly-formed volcanic island. The island is hunc
miles away from the mainland. Which hypothesis best explains how the plant arrived?
o It was carried there by wind or waves.
O It spontaneously generated.
O It was carried there by humans.
O It was already present in volcanic materials.
Answers
Name one pair of rays that are opposite
not rays
Answers
Answer:
Rays having same endpoint E but not in the opposite directions are ED and EC. This pair of rays meet at point E having different directions.