During interphase, the cell copies its DNA in preparation for the second stage of meiosis.
Prophase is the first stage of cell division, in which the chromosomes become visible as paired chromatids and the nuclear envelope disappears.
Metaphase is the second stage of cell division in which the chromosomes become attached to the spindle fibers.
Anaphase is the third stage of cell division, in which the chromosomes move away from one another to opposite poles of the spindle.
Telophase is the fourth stage of cell division, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
Cytokinesis is the division of a cell at the end of mitosis or meiosis that separates the cells into two individual daughter cells.
1) Each cell of the muscles of a certain bug contain 28 chromosomes.
b. How many chromosomes are in the digestive tract cells of a female bug of the same species? __________
c. How many are in her egg cells? _________
d. How many are in a fertilized egg? _________
Answer:
1.
c. 28 chromosomes
d. 48 chromosomes
Why are peregrine falcons a keystone species (in Arches National Park)?
Peregrine falcon live mainly in Alaska, Canada, and the western United States even though they are found everywhere in the world. They usually build their nest on a cliff or a rocky ledge.
What is keystone species?keystone species are a species that is extremely important to the ecosystem or something. If keystone species go extinct, it could cause a huge problem for the ecosystem.
Thus, They usually build their nest on a cliff or a rocky ledge.
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After the egg hatches, the amphibian breathes with gills and swims around in the water. What stage of the amphibian life cycle is this?
adult stage
larvae stage
egg stage
metamorphic stage
After the egg hatches, the amphibian breathes with gills and swims around in the water therefore the stage of the amphibian life cycle is larvae stage and is denoted as option B.
What is an Amphibian?This is referred to as a cold-blooded vertebrate animal which is characterized by having an aquatic gill-breathing larval stage followed by a terrestrial lung-breathing adult stage. Example of this type organism include frogs, salamanders etc and they don't undergo the pupa stage in their life cycle.
In the larval stages, they use gills to respire as they live in water and as the larvae grows and mature they develop lungs to respire on land. This is therefore the reason why they are able to survive in both aquatic and terrestrial environment and is therefore the treason why option B was chosen as the correct choice.
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2
The scientific names Ursus maritimus, Ursus arctos and Ursus americanus all have a common
name meaning...
They are closely related
They are distantly related
They have a distant but common ancestors
ОО
They are not related at all
protein contains nitrogen. a negative nitrogen balance represents:
Protein contains nitrogen. A negative nitrogen balance represents Inadequate protein intake.
Proteins are composed of amino acids, which contain nitrogen atoms. When proteins are broken down in the body, nitrogen is released as waste in the form of urea. The balance between nitrogen intake and nitrogen excretion is known as the nitrogen balance.
A negative nitrogen balance occurs when the amount of nitrogen excreted exceeds the amount of nitrogen taken in through dietary protein or other sources. This can happen during conditions such as inadequate protein intake, malnutrition, certain diseases, or prolonged fasting.
In a negative nitrogen balance, the body is losing more nitrogen than it is gaining. This indicates a breakdown of body proteins, which can lead to muscle wasting and tissue breakdown. It is often associated with catabolic states, such as severe illness or starvation.
Monitoring nitrogen balance is important in assessing protein status and overall nutritional health. A negative nitrogen balance signifies an imbalance in protein metabolism and may indicate the need for increased protein intake or medical intervention to address the underlying cause.
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The complete question is:
Protein contains nitrogen. A negative nitrogen balance represents:
A) Excessive protein intakeB) Proper protein metabolismC) Inadequate protein intakeD) Efficient nitrogen utilizationWhich of these describes the role of gelada baboons in their ecosystem?
secondary consumer
producer
primary consumer
decomposer
Does crossing over decrease genetic variation?
Chromosome crossover increases genetic variability by giving offspring chromosomes that differ from those of their parents.
The degree of genetic variation in a population is significant because natural selection depends on different alleles to change their frequencies for the better or worse.
Crossover is a process that results in fresh allele combinations in the gametes (egg or sperm) produced, assuring genetic diversity in any offspring produced.
Meiosis, also known as crossing over or recombination, is a process in which nonsister chromatids swap chromosomal regions. Cross-pollination creates new gene combinations in the gametes that are not present in either parent, increasing genetic diversity.
A species' genetic diversity is largely a result of meiosis. Two processes—independent assortment and crossing over—are the main means by which it achieves this (recombination).
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What product(s) do plants produce during photosynthesis that is/are used by humans and other animals
Answer:
oxygen and sugar(glucose)
human consumes oxygen
animal that eats plants benefit from the sugar
The answer is glucose and oxygen.
What products of photosynthesis do humans and animals use?There's a product other than glucose that comes out of photosynthesis: oxygen. Animals breathe oxygen every minute of every day, and we breathe out carbon dioxide.
What products do plants produce during photosynthesis that are used by humans and other animals as reactants during cellular respiration?Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide.
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Yeast and Morels comparison
Answer:
Unformed hyphae are called yeast – a substance that is very useful and applicable in many industries and fields. On the other hand, mycelium (plural form – mycelia) is the vegetative part of the fungus. In relation to the hyphae, it is the network collection or bundle of hyphae in one single place
it is estimated that half of all conceptions have too many or too few chromosomes. according to the text, what happens to most of the zygotes that are formed in these situations? question 77 options: a. they are spontaneously aborted. b. they result in neonates with birth defects. c. they result in twins. d. they have no problems.
Answer: They are spontaneously aborted
Explanation:
This fish fauna in the Rio Grande valley can be separated into two assemblages. The first one consists of mainly ______ fish found upstream.
This fish fauna in the Rio Grande valley can be separated into two assemblages. The first one consists of mainly freshwater fish found upstream.
The first group consists of primarily freshwater fish species that inhabit the upstream portions of the river. These fish species are adapted to living in freshwater habitats that have lower salinity levels and higher oxygen concentrations. Common examples of freshwater fish found in the Rio Grande valley include species such as bass, sunfish, and catfish. These fish play important roles in the river ecosystem, serving as both predators and prey for other species, and are an important source of food for humans and wildlife alike.
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Which statement is true based on the graph showing biochemical differences?
Biochemical variations, the true statement is option A, Compared to fish, humans and monkeys have more in common in terms of amino acid sequences.
What are the distinctions between biology and biochemistry?The study of living things is known as biology, while the study of the chemistry of life is the subject of the scientific field known as biochemistry. studies of proteins, carbohydrates, lipids, and nucleic acids are done in biochemistry. Anatomy and physiology of living things are the subjects of biology.Examples of typical biological reactions include photosynthesis, gluconeogenesis (the production of glucose from non-carbohydrate sources, mostly used by the brain), protein biosynthesis, fatty acid synthesis, glycolysis, Krebs cycle, urea cycle, and glycogenolysis.Biochemical variations, the true statement is option A,A) Compared to fish, humans and monkeys have more in common in terms of amino acid sequences.The complete question is,
Considering the graph illustrating biochemical variations, which statement is correct?
A) Compared to fish, humans and monkeys have more in common in terms of amino acid sequences.
B) Compared to turtles and pigs, moths are more closely linked to candida.
C) The amino acid sequences of fish and humans are completely distinct.
D) Human and duck cytochrome c are not connected to one another.
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when a baby is born it is suddenly confronted by very different surrounding name two major difference it faces
Gross motor - controlling the head, sitting, crawling, maybe even starting to walk. Fine motor - holding a spoon, picking up a piece of cereal between thumb and finger. Sensory - seeing, hearing, tasting, touching and smelling. Language - starting to make sounds, learning some words, understanding what people say.
Which accurately describes the pathway of transcription to translation in eukaryotes?
The accurate description of the pathway of transcription to translation in eukaryotes is that transcription happens in the nucleus, and translation takes place in the cytoplasm.
The accurate description of the pathway of transcription to translation in eukaryotes is that transcription happens in the nucleus, and translation takes place in the cytoplasm. Transcription in Eukaryotes Transcription in eukaryotes is the process by which DNA sequences are transcribed into messenger RNA (mRNA) molecules. The transcription process is catalyzed by RNA polymerase, which binds to DNA and unwinds the double helix at the transcription start site. Transcription begins when RNA polymerase binds to a promoter sequence on the DNA. Promoters are typically located near the genes they control, and they regulate gene expression. After binding to the promoter, RNA polymerase unwinds the double helix of DNA and begins synthesizing RNA molecules. Transcription ends when RNA polymerase reaches a termination sequence on the DNA, which signals the end of transcription. The newly synthesized RNA molecule then undergoes post-transcriptional processing to create a mature mRNA molecule. Translation in Eukaryotes Translation is the process by which mRNA molecules are translated into proteins. Translation occurs in the cytoplasm of eukaryotic cells, where ribosomes bind to mRNA molecules and use the information encoded in the mRNA to synthesize proteins. Ribosomes consist of two subunits, which come together around the mRNA molecule to create a functional ribosome. The ribosome then reads the mRNA molecule in codons, which are three-nucleotide sequences that code for specific amino acids. The ribosome synthesizes proteins by catalyzing the formation of peptide bonds between adjacent amino acids, which are brought to the ribosome by transfer RNAs (tRNAs). The tRNAs recognize specific codons on the mRNA molecule and bring the corresponding amino acids to the ribosome. The process of translation continues until a stop codon is reached on the mRNA molecule, which signals the end of translation. The newly synthesized protein is then released from the ribosome and undergoes post-translational modifications to create a functional protein.
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How would the death of a high mass star differ from the death of our Sun?
Answer:
7m years of date of death is the sun explode
The estimated percentage of cancers that are due to poor diet and lifestyle habits is approximately Group of answer choices3/41/21/31/4
Solution:
A large body of literature indicates that 30% to 40% of all cancer cases are related to poor dietary or lifestyle habits.
That is equivalent to 1/3.
So that the correct answer is:
1/3
DNA Never leaves the Nucleus of the cell. This is why you need RNA. In Transcription, DNA is
transcribed into a strand of RNA.
DNA has Adenine, Thymine, Cytosine, Guanine
RNA has Adenine, Uracil, Cytosine, Guanine
Transcription of DNA to RNA
ATGCCTAAGCCGTGTCCGAT
Answer:
Transcription and translation are the processes by which cells read or express the genetic instructions encoded in their DNA. Because multiple identical RNA copies may be produced from the same gene, and each RNA molecule can drive the creation of many similar protein molecules, cells can swiftly create a vast amount of protein when needed. However, each gene may be transcribed and translated with varying degrees of effectiveness, allowing the cell to produce massive amounts of some proteins while producing minute amounts of others (Figure 6-3). Furthermore, as we will learn in the following chapter, a cell may adjust (or regulate) the expression of each of its genes based on the demands of the moment—most visibly by managing RNA synthesis.
what do the data suggest about how related Turtles are to humans compared to tuna and chimpanzees
The data suggest that Turtles are less evolutionary related to humans when compared to chimpanzees and closer compared to tunes since amino acid differences account for the term divergence between species.
What does the term divergence between species mean in evolution?The term divergence between species in evolution makes reference to the difference between species in a given homolog protein sequence and or any other feature derived from a common ancestor. In this case, we can see that the aminoacid differences are higher between humans and tunas, thereby these species are evolutionary distant when compared to chimpanzees and also compared to humans and turtles (mammals and reptiles are evolutionary closer compared to tunas).
Therefore, with this data, we can see that the term divergence between species is based on the presence of homologies between individuals due to a common ancestor such as occurring between species.
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A local farmer breeds only her best cows, especially those that put out more milk. what process is the dairy farmer using to het a desired trait in offspring ?
artificial selection
Explanation: if a cow was sken
what is the term for a muscle contraction in which the proximal end moves toward the distal end?
The term for a muscle contraction in which the proximal end moves toward the distal end is concentric contraction.
What is muscle contraction?
Muscle contraction refers to the activation of force-generating sites within muscle fibers. In a muscle contraction, a muscle cell or muscle fiber changes in length, creating tension by developing force against its load. This force is generated by the action of myosin heads, which bind to and slide along thin filaments of actin in the muscle fiber. There are different types of muscle contractions, including concentric, eccentric, and isometric.
What is a concentric contraction?
Concentric contractions happen when a muscle shortens to move a joint. The term "concentric" refers to the muscle shortening during contraction. For example, during a bicep curl, the bicep muscle contracts concentrically as it lifts the weight towards the shoulder. In a concentric contraction, the muscle's proximal end moves towards the distal end.
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The process by which a cell engulfs large particles
Answer:
By enclosing the particles in an extension of the cell membrane and budding off a new vesicle
Explanation:
Which of the statements below most accurately describes the relationship between the sequence of a mature mRNA and the sequence of the genomic region that encodes that mRNA? An mRNA begins at the 5' end of the promoter and ends at the 3' end of the terminator, but some intervening sequence is removed by splicing. An mRNA begins at the 3' end of the promoter and ends at the 5' end of the terminator, but some intervening sequence is removed by splicing. An mRNA includes all of the sequence from the 5' end of the promoter to the 3' end of the terminator. An mRNA includes all of the sequence from the 3' end of the promoter to the 5' end of the terminator. X Submit You have used 1 of 2 submissions
An mRNA begins at the 5' end of the promoter and ends at the 3' end of the terminator, but some intervening sequence is removed by splicing.
This statement most accurately describes the relationship between the sequence of a mature mRNA and the sequence of the genomic region that encodes that mRNA.However, it is important to know what these terms mean. mRNA is messenger RNA, which carries genetic information from DNA to ribosomes where proteins are synthesized. The 5' and 3' ends of an mRNA molecule refer to specific ends of the sugar-phosphate backbone of the mRNA molecule that are distinct from each other, and they have different functions.
The 5' end of the mRNA molecule is the end that has a 5' cap. The 3' end of the mRNA molecule has a poly(A) tail attached to it. In addition, promoters and terminators are specific DNA sequences that are important in transcription. In transcription, promoters are the regions of DNA that recruit RNA polymerase to the start of the gene to be transcribed. Terminators are the regions of DNA that signal to RNA polymerase to stop transcription. Intervening sequences are segments of DNA that are transcribed, but are then removed from the pre-mRNA transcript by splicing.
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What are the structures that pull chromosomes apart during Cell division?
Nucleus
Mitochondria
Centrifuges
Centrioles and Spindles
How do dna cells keep from overmultiplying
what group of animals exhibits spiral cleavage and includes acoelomate, pseudocoelomate, and coelomate animals?
The group of animals that exhibits spiral cleavage and includes acoelomate, pseudocoelomate, and coelomate animals is the Protostomes. This group includes a wide range of invertebrate animals such as mollusks, arthropods, annelids, and nematodes.
Protostomes undergo spiral cleavage during embryonic development, which is characterized by the division of cells at oblique angles to each other. This pattern of cell division determines the formation of tissues and organs in the developing embryo. The protostome body plan also includes a mouth that develops from the blastopore, which is the opening formed during early embryonic development.
The three main subgroups of protostomes include acoelomates, pseudocoelomates, and coelomates. Acoelomates lack a body cavity, while pseudocoelomates have a body cavity that is not completely lined by mesoderm. Coelomates have a true body cavity that is completely lined by mesoderm.
Overall, protostomes are a diverse and fascinating group of animals that exhibit unique developmental and anatomical features.
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The diagram shows an energy pyramid.
If the flowers contain 50,000 kcal of energy, about how much energy will the lizard obtain from eating the butterfly?
500 kcal
5,000 kcal
50,000 kcal
500,000 kcal
Answer: I would say 500 kcal
I’m not 100% sure though
Please comment if it’s right!
Answer:
A. 500 kcal
Explanation:
every cunsumer it passes it losses a zero
50,000 flower
5,000 butterfly
500 lizard
Could somebody please help me?
Select the correct answer
Which biogeochemical cycle includes the exoskeleton and shells of marine organisms as a reservoir?
A) carbon
B) nitrogen
C) sulfur
D) oxygen
Thank you! :)
Answer: The answer is Oxygen.
Why is silicon distributed unevenly? Someone please answer asap I will give you a brainliest
Answer:
Inequalities in the exposure to environmental burdens and access to environmental benefits are an environmental justice concern for urban and regional environmental planning. Recent studies have assessed the exposure of different populations to a combination of environmental hazards through GIS-based Cumulative Environmental Impact Assessments (CEIA). The contribution of this study is the development of a CEIA, which incorporates the distance-based impact of transportation, the cumulative impact of environmental hazards, and access to environmental benefits for Santa Clara County (SCC), a highly diverse and rapidly developing region also known as ‘Silicon Valley’. Our results show that social vulnerability, cumulative environmental hazards, and environmental benefits exhibit distinct spatial patterns in SCC.
Explanation:
How are biotic and abiotic factors related? What is the difference between them?
Are gender traits completely a result of societal expectations?
Answer:
No. Gender traits in humans are largely determined by biophysical processes.