is chromatin stored within chromosomes
Answer:
Explanation:
Chromatin is the material that makes up a chromosome that consists of DNA and protein. The major proteins in chromatin are proteins called histones. They act as packaging elements for the DNA.
New forms of drug-resistant bacteria can evolve quickly because
Answer:
The correct answer is - when a drug kills most of the bacteria, the ones left to breed are those that have a natural resistance to the drug.
Explanation:
When a drug or antibacterial medication used on the colony of a bacteria, the drug kills most of the specific bacteria from the host or culture, however, some bacteria remain to breed the next generation of bacteria as they had resistance to the particular drug.
The left bacteria breed and produce more resistant bacteria and after a few generations, a new form of drug-resistant bacteria develops. This follows the natural selection process and adapting the beneficial characteristic.
Which of the following statements about the number of chromosomes in egg cells and zygotes is true?
Egg cells and zygotes have 46.
Egg cells and zygotes have 23.
Egg cells have 23, and zygotes have 46.
Egg cells have 46, and zygotes have 23.
Answer and I will give you brainiliest
Answer:
Egg cells have 23, and zygotes have 46.
I hope this helps
All animals need food, water, shelter, and space to live. which of these is difficult to find in a grassland habitat?
According to the scenario, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
What is Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. It may also be characterized as the area where the basic demands of an organism are fulfilled like food, water, space, mating partner, etc.
Grasslands habitats are generally open and continuous, fairly flat areas of grass. They are often located between temperate forests at high latitudes and deserts at subtropical latitudes. In these habitats, the availability of shelter is very low because of an abundance of small grasses across the area which is insufficient to build a shelter.
Therefore, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
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How will planting genetically modified crops affect chemical use on farms?
Increase chemical use
Decrease chemical use
No change to chemical use
No answer text provided.
The correct answer is
B. Decrease chemical use
Agricultural crops can be genetically engineered to become resistant to frost or to certain diseases
by inserting genes into their DNA from other____ organisms.
A. Resistant
B. More aggressive
C. Weaker
D. Healthier
define specialization in animals cells
The trait for hemophilia is sex-linked (on the X chromosome) and recessive. If a female who
is a carrier of hemophilia (XHXh) mates with a man with normal blood (XHY):What are the
chances of their daughters having hemophilia? What are the chances of their sons having
hemophilia?
What happens if some of your DNA is damaged by the environment?
Answer:
mutation or possible disease
Which term describes all plantlike protists?
A.Heterotrophic
B.Parasitic
C.Prokaryotic
D.Autotrophic
D.Autotrophic.....lolololo
Three examples of traits that can be BOTH genetic and non-genetic. For example, having a sense of humor- you can inherit it, or you can learn it, so it's both. I need three other examples. Cannot include height or how fast someone can run.
Explanation:
ሠሁነሁጋነነሃዐሠዐቻነዘሀቻዐሀነጕñነነጌዕሃነጋዕሀዕ
Answer:
Sense of fashion\style, maybe music or artistic taste and preferences in food
Explanation: These are just my ideas but if you don't want to use them then that's fine.
using the data you collected , hypothesize what a cladogram would look like for the organisma in Data table 1, assuming the trout is on the first and lowest branch.
Answer:
assuming the trout is on the first and lowest branch
Argentine ants are invasive ants found in California. They’re aggressive in nature and have a tendency to protect crop pests. In urban areas, Argentine ants don’t have many predators. Argentine ants and the native ant species were observed competing for nutrients in a particular ecosystem. What is a likely outcome of this competition? A. an increased number of Argentine ants B. an increased number of native ants C. no dependence between the populations of the two ant species D. an equal number of Argentine and native ants
Answer:
The answer is C.
Explanation:
No dependence between the populations of the two ant species.
What are two types of evidence that have helped biologists determine the ancestors of modern humans
Answer:
The evolution of modern humans consisted of fossils, direct observation, anatomy, and molecular biology.
Areas of Earth that absorb more carbon dioxide than they release
Answer:
When carbon dioxide CO2 is realised into the atmosphere from the burning of fossil fuel, approximately 50% remains in the atmosphere, while 25% is absorbed by land plants and trees, and 25% other is absorbed into the areas of the ocean.
7.
The material that is easiest to recycle is___
glass
plastic
aluminum
paper
Answer: C.) Aluminum
Explanation: Aluminum cans are one of the most recyclable materials, as they are 100% recyclable and can be reprocessed over and over again. You can recycled aluminum cans into new cans which uses 95% less energy than making new ones.
Hope this helps. :)
Which of the following best explains how viruses replicate?
Answer:During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. During uncoating, replication, and assembly, the viral DNA or RNA incorporates itself into the host cell's genetic material and induces it to replicate the viral genome.
Explanation:
Virus replication is the formation of biological viruses during the infection process in the target host cells. Viruses must first get into the cell before their replication can occur.
What do you mean by Viruses?Viruses may be defined as infectious microbes consisting of an element of nucleic acid surrounded by a protein coat.
There are six steps that govern the replication of a virus. They are given below:
Adsorption or attachment: This step attaches the virus particle to the plasma membrane of the host cell. Penetration: It is done by receptor-mediated endocytosis and the virus now enters into the cytoplasm of the cell.Uncoating: This step breaks the whole structure of the virus particle and allows its genetic material to reach inside the nucleus of the host cell.Viral Genome replication: This is done in the nucleus of the host cell.Maturation: It involves the growth of replicated virus particles.Release: It allows the replicated virus particle to move outside the host cell by bursting it.Therefore, it is well described above.
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Mention two important roles for hydrochloric acid in the stomach.
Answer: 1.)The gastric juice
2.) The acidic gastric
Explaining: The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.
Hope this helps. :)
Describe the difference in pressure against your cheeks when they are full of air versus When You released it
Answer: When they were full of air, then the Pressure was the Highest 'cause of the larger force under the specified area as compared to when we released it. We decreased the area of our cheek, so pressure increased and air flows from the cheek (area of high pressure) to the atmosphere
Explanation:
Practice Problem
In a population in Hardy-Weinberg equilibrium, 49% of the individuals
show the recessive trait. What is the frequency of the dominant allele in
the population?
Answer:
0,45 is the population I guess
The heart valve at the entrance to the aorta is the _________ valve.
bicuspid mitral
aortic semimitral
pulmonary semilunar
aortic semilunar
tricuspid
Answer:
tricuspid valve would be the entrance to the heart
If all the bees in the hive come from the queen, how are they related?
All the bees in the hive are cousins.
All the bees in the hive are sisters and brothers.
All the bees in the hive are aunts and uncles.
Answer:
B :D
Explanation:
I just had this question on a Gizmo lab of mine and I answered "B" and it was correct :) The answer above mine is correct :D
It's amazing to see how the bees in the hive interact with one another. All of the bees in the hive are directly descended from the queen bee, who serves as the mother of the whole colony.
What is the task of a queen in the queen bees ?The only bee in the colony with the ability to reproduce is the queen, and she does it by laying eggs. The drone bee, the queen's partner, fertilises the eggs, and the larvae that result hatch into worker bees.
Given that they all have the same mother, the worker bees are all sisters and brothers. They are all also cousins since they have the same father, the drone bee. A small number of female bees known as "daughters of the queen" are also produced by the queen bee.
Additionally, these children are sisters to the These daughters are not relatives; although they are sisters to the worker bees, they are not linked to the drone bee. The queen bee can also give birth to drones, which are male bees. These drones are not relatives since they have no siblings or brothers and no connection to worker bees.
However, because they have the same mother as the worker bees, they are aunts and uncles to the latter. In conclusion, there are many relationships among the bees in the hive. They are all related since they all have the same mother, the queen bee. They are cousins because they have the same parent, the drone bee. The worker has relatives and uncles who are drones.
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What happens when cells do not
respond to the signals that
normally regulate their growth?
Answer:
Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues. ... Normal cells respond by not growing.
Answer:
Cancer cells do not respond to the signals that regulate the growth of most cells... What happens when cells do not respond to the signals that normally regulate their growth? Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues.
Hope this helps!!!
Have a great day!!! :)
Which describes the moth population after the industrial Revolution?
7. Challenge yourself: You have already learned that mutation is one source of
variation in a population. Based on what you have just seen, what is a second
source of variation?
(I just need more information or explanation) please
Answer:
Natural selection would be the other source because organisms that have a beneficial trait will live, but organisms that do not have a beneficial trait might die. So the organsims that do survive will reproduce and pass on those traits to their offspring. Eventually all the organisms that do not have a beneficial trait will die out, leaving most of the population having that beneficial trait.
what is natural selection?
Answer:
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
B. Evidence from rock layers, fossils, and ice cores.
Explanation:
Right i believe
Answer:
Its the 4th one. I think. Its the 2nd or third but can't tell for sure. When I searched it, the result came as followed: "Plate tectonics shift the continents, raise mountains and move the ocean floor." So yeah. Hope this somewhat helps.
Explanation:
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
Its the 3 one
Answer:
I'm pretty sure the answer is that they are in the same biological classification
Explanation:
this is the answer because they evolved from a common ancestor.
45 POINTS + BRAINLIEST IF CORRECT!!!
A fever is a response to which stimulus?
A) fear?
B) hunger?
C) illness?
D) tiredness?
HURRY PLZ
Answer:
there ya go
Explanation:
A different couple has a child with O type blood who has a blood disorder and
needs regular transfusions. The mother is type B, and the father is type A. A
genetic counselor created a punnett square to show them the chance of having
another child with type O blood. The results are shown below:
What is the chance of the couple producing another child with type O blood? __%
Answer:
25%
Explanation:
A simple way to think of the punnett square is to think of it as divided into fourths. Only one of these fourths has o type blood. Therefore, there is only a 1/4 or 25% chance of them having another child with o type blood. Hope this helps :)