True or false chromatin stores the cells DNA and controls the cells action

1 answer:

3 0

This is false. The nucleus of a cell stores the DNA and controls the cell’s action, but chromatin is the protein in the nucleus that folds DNA into tiny packages.

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What are some nonlethal solutions to the problem of wolves attacking cattle and sheep?

irga5000 [103]

Answer:Fences, loud alarms, and keeping animals in a safe space

Explanation:

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In a hypothetical situation, a certain species of flea feeds only on pronghorn antelopes. In thewestern United States, pronghorn

eimsori [14]

Answer:

D) sympatric speciation and habitat isolation

Explanation:

Sympatric isolation is a form of evolutionary process whereby different species from an ancestral origin evolve within the same geographical environment as a result of reproductive isolation.

Habitat isolation is a form of reproductive isolation which occurs when two populations of a species inhabiting overlapping habitats become unable to interbreed with each other.

Reproductive isolation (habitat isolation) that occurs in the fleas is as a result of the new species becoming separate from it's ancestral species which feed only on pronghorn antelopes, although both species can still be found in the same geographical location (rangeland). The new species now have preference for cattle blood, and so are now found on cattle.

In the situation of the two new species of flea that would evolve, it can be said to an example of sympatric speciation and habitat isolation, since the host mammal is assumed to be their habitat and both the cattle and pronghorns often associate with one another in the same open rangeland.

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One of your brother's friends, Dylan, is unusually short with a stocky build; has a flat face, a large tongue, and an extra fold

Oksanka [162]

Answer:

Dylan likely has Down Syndrome / 21 Trisomy Syndrome.

Explanation:

Down Syndrome is a genetic disorder in which the person has an extra copy of chromosome 21, this is why the disorder is known as Trisomy 21. This extra copy changes how the body and the brain develope, which can cause mental and physical problems.

Children with this disorder usually have a low intellectual level, the most frequent cause of identifying mental delay of genetic origin.

Some of the characteristics of these children are slight diminution in the skull size, almond-shaped eyes, a short neck, small ears, a small mouth, a large tongue tends to get out of the mouth, narrow auditive conduct, tiny hands, and feet, weak muscular tone, and they are usually short in height.

There are also some medical problems such as hearing loss, apnea, ear infections, ocular problems, heart defects, intestinal malformations, hypothyroidism, hip dislocation, anemia, among others.

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Cells are surrounded by a watery fluid, and they contain watery cytoplasm. Explain how the structure of the lipid bilayer is rel

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The phospholipid no later regulates the amount of water that travels in and out of the cell.

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Why is water not a living thing?

SCORPION-xisa [38]

Water is not a living thing because it is not made up of a living atomic structure, water is instead made up of 2 hydrogen atoms and 1 oxygen atom unlike other living creatures.

Hope this helps!=)

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