Answers
Answer:
The primary function of the centromere is to provide the foundation for assembly of the kinetochore, which is a protein complex essential to proper chromosomal segregation during mitosis. In electron micrographs of mitotic chromosomes, kinetochores appear as platelike structures composed of several layers
Related Questions
A population of wild boar has grown in size. Officials meet to identify different ways to stop this growth. They reduce food supply for the wild boar and modify the environment, causing the wild boar to stop reproduction. After making these changes, they notice that the population has stabilized.
Which is the dependent variable in this experiment?
a. the population size of wild boar in the environment
b. the type of method used to stop wild boar growth
c. the environment in which the wild boar lives
d. the time it takes for the wild boar population to grow
Answers
The endocrine system works closely with the _________
system to bring about homeostasis in the body.
O respiratory
O cardiovascular
O immune
O nervous
Answers
land animals were found in the same layer as the volcanic ashes in the dinosaur provincial park. what does this tell you about the age of the fossils? what else can this tell you about these fossils besides the age
Answers
Answer:
it tells you that the age of the fossils of the land animals is the same as the date the volcano erupted.
Explanation:
What most likely caused the change in the distribution of fur colors in the graphs shown?
A. The medium-colored rabbits were not able to reproduce.
B. A predator showed up that was better at hunting medium colored rabbits
C. Medium-colored rabbits moved away from the area.
D. Medium-colored rabbits were not able to find food efficiently.
Answers
Answer: D
Explanation: I think it is d because of process of elimination. A is not reasonable because the graph 2000 goes up and down so not being able to reproduce would not fluctuate. The other two choices the. Are close but not sensible to how the graphs are structured. Therefore best choice is option is D.
In your post, discuss ONE Neanderthal or Denisovan gene that is currently found within our species. Tell us about the gene and its function. Explain what it does for us. (Make sure you give a citation.) Explain in your own words any possible advantages that your Neanderthal or Denisovan gene might have. Make sure you give in informed opinion that is grounded in your research. Caution: Make sure that your chosen genetic variant is not simply a result of common ancestry. For example: FOXP2 is a gene that Neanderthals and Sapiens share because of common ancestry. Verify that the genetic variant that you are looking at is actually derived from Neanderthals, Denisovans or another species. You will have to respond to two other student posts. Make sure you cite your work.
Answers
Answer:
It has been shown that many microRNAs (miRNAs) were differentially expressed in Neanderthal and Denisovan genomes.
Explanation:
MicroRNAs (miRNAs) genes encode for RNA regulatory sequences capable of modulating gene expression patterns, thereby they play critical roles in evolution and development. It has been proposed that these miRNAs might control the expression of TRAPPC9, GRID1, PRDM16, NAV2, SorCS2, CAMTA1, and ASIC genes, which are involved in neurocognitive developmental functions.
You can read this publication about this important issue:
Cserhati et al. (2018). Motifome comparison between modern human, Neanderthal and Denisovan. BMC genomics, 19(1), 472.
© 1. What type of cell is this? What characteristics helped you decide the type of cell? (Identify form/structure.) What is this cell's function?
Answers
Answer:
nerve cell
Explanation:
it helps in the nervous parts
it comprises of neuron,dendrides and axons..
The given cell is the nerve cell, as the structure has a single cell body and dendrites that are coming out of the cell body, and it is important for the body as the function is to send information.
What is the work of the nerve cell in the animal body?In animals, nerve cells are the primary cells that carry information throughout the body and are responsible for transmitting information in the form of electrical and chemical signals, and each neuron has three main parts: the cell body, dendrites, and axons, here the cell body contains the cell's nucleus and other organelles; dendrites are branching extensions of the cell body that receive signals from other neurons or sensory cells; and axons are long structure that transmit signals to other neurons.
Hence, the given cell is the nerve cell, as the structure has a single cell body and dendrites that are coming out of the cell body, and it is important for the body as the function is to send information.
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Q: Predict and describe some possible effects to your entire food web if the following happened:
A mysterious virus has sickened the secondary consumer fish. There
are few survivors. Fortunately, this virus is not affecting organisms on any other trophic levels. However, the loss of these organisms is
affecting the rest of the food web. Please describe the possible effects:
Answers
Answer:
Less fish will disrupt the predators in the ocean. Sharks, and other predators in these oceans need a food source such as fish if this Virus does indeed kill these many fish. Meaning the virus is in this fish, It might spred to predators that eat these fish. Still if the predators of the food chain dont find these food sources for them i am sure they will die of starvation.
Explanation:
If a food source for animals is obsulete i am sure the predators of the animals will have starved to death like how, the Hot blob is affecting the Cassins auklet due to the Less amount of phytoplankton in the oceans.AIDS is the fifth and most severe phase of HIV infection
Answers
Answer:
HIV is the virus that causes Aids
last stage is Full blown stage
A cell is placed into a beaker containing a 4% sucrose solution. The cell contains a 1% sucrose solution. Was the cell placed in a hypotonic, hypertonic, or isotonic solution? Will there be a net influx or efflux of water and if so what direction?
Answers
Answer:Question:
A cell is placed into a beaker containing a
4
%
sucrose solution. The cell contains a
1
%
sucrose solution. Was the cell placed in a hypotonic, hypertonic, or isotonic solution? Will there be a net influx or efflux of water and if so what direction?
Concentration Gradients
The rate and direction of diffusion, and osmosis is dictated by the extent of concentration gradients present between two solutions. Organisms take advantage of concentration gradients to transport molecules, transfer heat, etc.
Explanation:
the images represent ecosystems in the eastern united states. rank the ecosystems by their ability to remove and store carbon, from greatest to least.
Answers
The mangrove forest which holds the most Carbon dioxide followed by forest shown by second image and at last the vegetation on farms holds and releases the least amount of Carbon dioxide.
Carbon is transferred through one storage reservoir to another through a range of mechanisms. Plants, for example, transfer carbon dioxide from the atmosphere into the biome via photosynthesis in the food chain. They use solar energy to chemically incorporate carbon dioxide, hydrogen, and oxygen from water to form sugar molecules. Animals that consume plants metabolize the sugar molecules to obtain energy. Respiration, excretion, and decomposition all return carbon to the atmosphere or soil, thus completing the cycle.
Erosion, for example, releases carbon into the atmosphere slowly, whereas volcanic activity releases it quickly. Another way to quickly release carbon into the atmosphere is to burn fossil fuels in automobiles or power plants.
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Which of the following is release during cellular respiration
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Which of the following best describes your answer for question number 1? *
O Homozygous dominant
O Homozygous recessive
O Heterozygous
Answers
The correct answer is (a) One individual has the dominant phenotype and the other has the recessive phenotype. A testcross is an experiment performed to determine whether the genotype of an organism with a dominant phenotype is homozygous or heterozygous. The organism is mated with another organism that has a recessive phenotype and therefore a homozygous recessive genotype. If the offsprings of this cross all have the dominant phenotype, then the parent with an unknown genotype was homozygous for the dominant allele. If some offsprings have a recessive phenotype, then the parent must be heterozygous.
Producers are at the start of every
A. water cycle
B. cell cycle
C. food chain
D. nutrient cycle
Answers
Answer:
C. food chain.
Explanation:
Producers typically are able to create energy by themselves, with little to no help from outside (other than photosynthesis (sunlight), soil, water, etc.) They also hold the most amount of energy.
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Please give brainliest!
When observing an ECG, you will see many different deflections from baseline known as waves. These deflections represent various electrical events taking place in the heart that give rise to the mechanical events that help move blood. In addition to the waves that can be observed, there are flat lines between waves and successive cardiac cycles called segments that also represent particular electrical events that take place in the heart. Finally, certain combinations of waves and segments, known as intervals, also identify important events recorded by the ECG. Match each of the following events with the correct phase of an ECG. Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
A. P wave
B. ST segment
C. QRS complex
D. PR segment
E. T wave
F. QT Interval
1. Atrial depolarization_____.
2. The ventricles are in their depolarized state____.
3. Total time it takes for the ventricular muscle to depolarize and repolarize____.
4. Ventricular depolarization____.
5. Conduction through the atrioventricular (AV) node____.
6. Ventricular repolarization____.
7. Conduction through the atrioventricular (AV) bundle____.
Answers
Answer:
1. Ventricular depolarization −−QRS complex
2. Total time it takes for the ventricular muscle to depolarize and repolarize −−QT interval
3. Atrial depolarization −−P wave
4. Conduction through the atrioventricular (AV) node −−PR segment
5. Ventricular repolarization −−T wave
6. The ventricles are in their depolarized state −−ST segment
7. Conduction through the atrioventricular (AV) bundle −−Q wave
Explanation:
ECG or electrocardiogram is the graphical representation of the heart's rhythm and electrical activity measured by electrical signals. The contraction of the heart shows electrical activity.
There are various deflections shows from baseline and known as specific waves and there are also some flat lines between waves called intervals. This atrial depolarization is called P wave and ventricular repolarization called T wave and the time between ventricular muscles depolarization ( QRS complex) and repolarization is QT interval. Conduction through the atrioventricular (AV) bundle is known as Q wave.
An examination of the planets orbiting other stars shows us what
Answers
The study of exoplanets, or planets that orbit other stars, has provided a wealth of knowledge about the variety and characteristics of planetary systems outside of our own Solar System.
We can see what by looking at the planets circling other starsExoplanet research has improved our knowledge of planetary system evolution and formation, as well as the conditions necessary for life to exist on other planets. Exoplanet observations have uncovered a wide variety of planet sizes, compositions, and orbits, as well as the identification of numerous previously unidentified new types of planets. The chemical make-up and climate of an exoplanet can also be discovered by studying the light that travels through its atmosphere. You can use this data to find out if the planet has the conditions needed to support life, such as the presence of water, organic molecules, and other key ingredients.
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21. Some fish, some dogs and some children are swimming in a bay. There are 40 legs in total, twice as
many heads as tails and more dogs than fish.
How many fish are in the bay?
Answers
what gender of offspring are most often affected by sextinked inheritance?-What gender-are-usmally-carriers-of the trait?
-males, males
-males, females
-females, females
-females, males O O
Answers
Answer:
female, female
Explanation:
this is because sex-linked characters are normally borne in the X-chromosome
Which of the following events takes place during the mitotic phase of the cell cycle?
O Duplication of DNA
Duplication of
DNA
Duplication of
centrioles
Which of the following events takes place during the mitotic phase of the cell cycle?
Separation of Chromosomes
Duplications of centrioles
Division of Cytoplasm
Separation of
chromosomes
Division of
cytoplasm
Answers
The events that takes place during the mitosis are separation of chromosomes, duplication of centrioles, division of cytoplasm, separation of chromosomes and division of cytoplasm.
Phases of mitosisThe majority of the cell's life is spent in the interphase, just before prophase, where mitosis's start-up is prepared for (the DNA is copied). The prophase is technically the first phase of this process, though, because the actual process requires the division of the nucleus. The duplicated chromosomes are aligned, separated, and transferred to the cell's opposite poles during the multistep mitotic phase, after which the cell divides into two brand-new, identical daughter cells.The cell divides its cytoplasm and divides its DNA into two sets during the mitotic (M) phase to produce two new cells.For more information on mitosis kindly visit to
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Each year, approximately 5,000 metric tons of mercury compounds are released into the environment either naturally or from human activities. Once mercury enters the water systems, bacteria convert it into an organic form called methyl mercury, introducing it into the food web. Which of the following will happen to the methyl mercury released into the environment?
Answers
The health of people damaged when the mercury is released into the atmosphere because of its toxic nature.
What is the effect of mercury?Mercury contamination is a great threat to public health and environmental because methylmercury easily enters the bloodstream which leads to damaged brain. It is considered toxic for the humans due to its damaging nature.
So we can conclude that the health of people damaged when the mercury is released into the atmosphere.
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Roundworms
Type of skeleton (ENdoskeleton, EXoskeleton, or None)
Type of appendages (Jointed, Not Jointed, or Absent)
Segmentation (Present or Absent)
Type of symmetry (Radial, Bilateral, or None)
Answers
Answer:
Think about it. Worms move with MUSCLES. So the first answer is None.
The appendage of a roundworm is not present.
How do you think worms turn and move? They are segmented. The symmetry of a worm is Bilateral.
Explanation:
I'm doing the assignment myself. Look up the answers and use common logic.
Annie is writing a relatively short summary of what Kudzu eats and any distinguishing characteristics of it Read below her summary What does it eat? Does it have any distinguishing and notable characteristics? Kudzu is an autotroph, meaning that it makes its own food from sunlight. Kudzu can cause environmental damage as it is considered radically invasive. This species grows and climbs on other plants and trees rapidly, suffocating them by thoroughly blocking sunlight to the impacted areas. It is considered a killer species for plants, and negatively impacts the invaded environment and it’s food chain. However, it is not a poisonous species or a predator in the ecosystem. Kudzu can act like a predator by attaching to other plant species and asphyxiating them, but is primarily a producer.Then answer: Is Annie correct? If not, reword her summary to the best estimated answer :) or is there something she could have said better, If Annie is correct, What could she add that might be helpful ?
Answers
Actually, the summary only talks about the distinguishing characteristics of kudzu. And kudzu is a plant so basically, it doesn't eat anything. It just gets it's energy from the sun. Just like other plants.
The food it makes is through the process of photosynthesis. That's what autotroph means.
It does kill them that's why they are considered predators.
Kudzu is not a producer of nuts or fruits, or even leaves that are attractive to Virginia's wildlife. Insects and other animals in Virginia evolved to feed on native plants, and are not normally adapted to process the unusual proteins and carbohydrates in non-native species.
And over accumulation of dyno flagelitz cause a what which can contaminate shellfish and make them unfit for human consumption
Answers
The overaccumulation of the dinoflagellates causes the crimson summer. Option B
What can make shell fish unsafe for consumption?We know that the safety of the fish for consumption would depend on so many factors and a lot of the factors have to do with the contaminants that can be found in the water. This is the point of the question that we have here.
It is important to only consume shellfish that have been properly harvested and stored, and to avoid consuming shellfish from areas where contamination is known to occur. In addition, cooking shellfish to recommended temperatures can reduce the risk of food poisoning. However, if you have any concerns about the safety of the shellfish you are consuming, it is best to consult with a healthcare professional.
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Missing parts;
An overaccumulation of dinoflagellates causes a _______, which can contaminate shellfish and make them unfit for human consumption. A. red tide B. crimson summer C. scarlet wave D. rose water
Is crick and Watson a type of genetic test
Answers
No, "Crick and Watson" is not a type of genetic test. Crick and Watson refer to James D. Watson and Francis Crick, who were scientists involved in the discovery of the structure of DNA. They proposed the double-helix structure of DNA in 1953, which provided the foundation for understanding genetic information and its role in heredity.
Genetic tests, on the other hand, are laboratory tests that analyze an individual's DNA or genes to provide information about their genetic makeup, potential genetic disorders, or predispositions to certain conditions.
These tests can be used for various purposes, such as diagnosing genetic disorders, predicting the risk of developing certain diseases, determining carrier status for genetic conditions, or providing ancestry and genealogical information.
While Crick and Watson made significant contributions to the field of genetics, they are not directly associated with genetic testing. Genetic tests are based on scientific advancements and technologies developed after their groundbreaking discovery of the DNA structure.
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Using the 100x objective lens from question 6, you estimate 12 organisms could fit across the DFV if they were laid end-to-end and 30 could fit is stacked side-by-side. What is the length and width of this organism (in microns)?
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Answer:
Hi how are you doing today Jasmine
Which feature on its head has a structure that enables the animal to eat its
food? Sea lion
A. Eyes
B. Nose
C. Mouth
D.whiskers
Answers
Sea lion eat using whiskers.
Marine creatures known as sea lions are frequently spotted along ports and coasts all over the world. They are trained for tasks and frequently used in shows due to their high intelligence.Sea lions hunt by diving under the water and using their vibrissae to look for fish. Excellent predators, sea lions catch and consume several fish each day. Their vibrissae are one of the greatest weapons sea lions utilize when hunting. Long hairs called vigrissae that surround the mouth are frequently referred to as whiskers.As carnivores, sea lions eat clams, hake, squid, crabs, and octopus. They are predatory marine animals that only eat marine life. They are coastal-dwelling creatures that pursue their prey using wits and swimming prowess.Therefore, option D. is correct.
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Which codon is the code for the amino acid valine (Val)?
Answers
Answer: A. GUC
Explanation:
Looking at the codon chart, we see that on the lower left corner (where first base in codon is G) the whole section matches to amino acid valine. Therefore, GUU, GUC, GUA, and GUG are all correct answers, but since GUC is the only correct choice in the four choices given, GUC is the answer to this question.
Quagga mussels, an invasive species of mollusk originally from
Russia, have been introduced to the lake after being carried in on
the hulls of boats. An assessment of the size of the quagga
mussel problem is needed, along with suggestions to curb their
population growth.
what field of science is this?
Answers
This is a problem in the field of ecology.
The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.
It falls under the discipline of ecology, which studies the relationships between organisms and their environment.
Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.
In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.
They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.
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How are meiosis and mitosis different?
A. Meiosis produces four cells, but mitosis produces two cells
B. Mitosis produces haploid cells and meiosis produces diploid cells
C. Mitosis has anaphase 1 and 2, but meiosis has only anaphase 1
D. Chromatids are formed only during the process of meiosis
Answers
Answer:
Explanation:
Option A is the correct answer
The geosphere is the earth itself. It includes the non-living ______ , ________ , and ________ that make up the ________ on earth .
Answers
The geosphere is the actual earth. It includes the inert substances such as rock, mineral, and soil that make up the earth's surface.
What is contained within the geosphere of the Earth?All the rocks that make up Earth are included in the geosphere, including the partially molten rock beneath the crust, the enormous, towering mountains, and the sand grains on the seashore. A global ecosystem that includes all life on Earth, the biosphere is supported by both the geosphere and the hydrosphere.
Is the geosphere alive or dead?The entire crust of the Earth is the geosphere. The Greek prefix geo-, which meaning "earth," is the root of the word geosphere. Due to the absence of any living things, the geosphere is regarded as abiotic.
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example of chromosomes
Answers
Explanation:
Human has 46 chromosomes .............