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Elena L [17]
3 years ago
7

During what reproduction, cells reproduce identical and unidentical offspring

Biology
1 answer:
Masja [62]3 years ago
7 0
Sex... I think ? Is it multiple choice
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Describe how hibernation has helped bear species to survive.
Ierofanga [76]
Hibernation helps animals survive the changing seasons. Foods that bears eat, such as berries and flowers, are much less available during cold winter months. When they hibernate, bears enter a deep sleep. ... While they sleep, the bears can survive because their bodies live off of their stored fat or food.

During hibernation, the animal’s body temperature, heart rate and breathing rate all drop to significantly lower levels. Animals do this to survive the winter because the weather is cold and food is scarce. It is advantageous because these animals can quite literally shut themselves off for weeks at a time rather than try and survive through harsh weather conditions.

While many people think bears are hibernators, they actually participate in a similar, though not exact, practice. Instead of hibernating, bears fall into a deep sleep called torpor. During torpor, heart rate and breathing rate decreases, body temperature reduces slightly and bears do not eat or release bodily waste. Bears can sleep more than 100 days without eating, drinking, or passing waste!

Bears sleep in dens that they make themselves, as well as in hollow trees, caves and dens built by other bears. A den can be built in 3–7 days, however, the timing of den building varies from bear to bear. While some bears build their dens months before hibernation season, others choose to excavate their dens.

These animals can dramatically drop their body temperature to below freezing—salty body fluids work to prevent tissue crystallization in particularly cold temperatures.

So really, animals that are true hibernators don’t actually sleep through the entire winter.

The urea produced by their fat metabolism is broken down and the nitrogen is re-used by the bear to rebuild protein.
6 0
2 years ago
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A rectangle 10 ×9×18 surface area<br>​
andrey2020 [161]
The surface area is 1,620
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3 years ago
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A new food product is being distributed by a company. Researchers determine that the food product contains only carbon, oxygen,
Contact [7]

Answer:

This new food is a carbohydrate

Explanation:

<em>Carbohydrates (also known as saccharide) general formula is CH2On, this means they are molecules that only contain carbon (C), hydrogen (H) and oxygen (O). </em>In the basic form, these sugars are known as monosaccharides, they can combine no form more complex sugars like disaccharide (2), oligosaccharides (2-10) or polysaccharides (>10).

Therefore we can conclude that this new food is a carbohydrate.

I hope you find this information useful and interesting! Good luck!

3 0
3 years ago
Each chromosome in this homologous pair possesses a different allele for flower color. Which statement about this homologous pai
Stells [14]

Answer:

These homologous chromosomes represent a maternal and a paternal chromosome

Explanation:

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Identify the structures a virus can contain.
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Answer:

The simplest virions consist of two basic components: nucleic acid (single- or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.

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