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Marysya12 [62]
4 years ago
11

Mammals have well-developed brains that are more specialized than any other class of animals.

Biology
2 answers:
quester [9]4 years ago
6 0
This answer is probably true, because mammals are very intelligent creatures.
kenny6666 [7]4 years ago
3 0
True, if you consider humans mammals.
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Describe how a build-up of cholesterol in artery is a risk factor in the development of atherosclerosis?​
AleksandrR [38]

Answer:

If you have too many cholesterol particles in your blood, cholesterol may accumulate on your artery walls. Eventually, deposits called plaques may form. The deposits may narrow — or block — your arteries. These plaques can also burst, causing a blood clot to form.

Explanation:

5 0
3 years ago
The expansion of grasses during the Oligocene and Miocene Epochs led to
tresset_1 [31]

Answer:

The answer is:

D. the radiation of herbivores such as grazing animals

Explanation:

Oligocene and Miocene Epochs:

  • The Oligocene epoch is characterized by temperate and subtropical climatic conditions which favored the expansion of grasses and reduced forest cover.
  • The Miocene epoch, which succeeded the Oligocene era, is attributed to changes in global circulation due to global warming of the climate followed by global cooling towards the end.

The Oligocence and Miocene epoch are both attributed to the expansion of grasslands and savannah. Both eras marked rapid and drastic evolutionary changes in grazing mammals and herbivores. Diverse groups of grazing mammals lived throughout these eras. For example, the largest herbivore and land mammal of all time, <em>Indricotherium</em> (a sort of giant hornless rhinoceros), was present in the Oligocene era.

Similarly, the Oligocene era in North America favored the rapid radiation of primitive horses.

8 0
3 years ago
If someone have consumed a drug that block the activity of primase. state the effect of drug on the synthesis of new dna strand.
Vanyuwa [196]

Answer:

The consumption of a drug that inhibits or block the enzyme primase will have problems for the replication of DNA, since it is not possible to synthesize a new strand without this enzyme.

Explanation:

During DNA replication, the enzyme primase is responsible for synthesizing the primers, RNA fragments necessary for the DNA polymerase III to synthesize the new DNA strand.

If for any reason the action of the primase is blocked, the primer could not be synthesized and the effect of DNA polymerase III would be null, so the new DNA strand could not be synthesized.

In DNA replication, the primase contributes to the formation of small fragments of DNA, by the action of polymerase III, which are called Okazaki fragments. These fragments will require the action of another enzyme, ligase, in order to form a continuous DNA strand.

7 0
3 years ago
Why does the metabolic waste ammonia pose a problem for all animals?
lesya [120]
The metabolic waste ammonia pose a problem for all animals because of the physical properties that it has and its effect on the body of the animals. It has a <span> strong, pungent </span><span>odor. Also, it can be a poison to the body. Hope this answers the question. Have a nice day.</span>
8 0
3 years ago
Mitosis and meiosis are similar processes, but they have some very important differences. Explain how mitosis and meiosis are al
solmaris [256]
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Differences: Meiosis creates gametes while mitosis creates somatic cells. Mitosis creates two daughter cells, while meiosis creates four sperm cells in men and one egg cell and three polar bodies in women. Mitosis involves one round of cell division, while meiosis involves two. Mitosis creates cells that have the same number of chromosomes as the original cell, while meiosis creates cells that have half the number of chromosomes as the original cell.
Hope that helped you. 
P.S. There are more similarities and differences, challenge yourself and see if you can find them! Good luck.
4 0
3 years ago
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