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masha68 [24]
3 years ago
12

Looking through a light microscope at a dividing cell, you see two separate groups of chromosomes on opposite ends of the cell.

new nuclear envelopes are taking shape around each group. the chromosomes then begin to disappear as they unwind. you arewitnessing _____.
Biology
2 answers:
kupik [55]3 years ago
7 0
You would be witnessing Meiosis because cells that divide with chromosomes are sex cells and meiosis occurs in sex cells
nata0808 [166]3 years ago
5 0
All cells have chromosomes. You are witnessing the last bit of mitosis. During telophase in mitosis, two distinct nuclear envelopes appear.
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To survive, an organism must be able to maintain stable internal conditions in a changing environment. This process is called ho
Reptile [31]

Answer:

1. Initial air temperature: 0 °C (32 °F)

2. Initial body temperature: 37 °C (99 °F)

3. The expected effect of different factors on body temperature are:

   A. Raising air temperature: Increase

   B. Lowering air temperature: Decrease

   C. Adding clothing: Increase

   D. Exercising: Increase

Explanation:

The question is incomplete, it is necessary to look for a software related to this homework.

<u>Homeostasis is a property of organisms that consists in their capacity to maintain a stable internal condition by compensating for changes in their environment</u> through the regulated exchange of matter and energy with the exterior. It is a a dynamic equilibrium controlled by a mechanism of feedback that constitute the self-regulating mechanisms. Examples of homeostasis are temperature regulation and the balance between acidity and alkalinity (pH)

The Human Homeostasis Gizmo™ is a software that allows you to explore  how the human body stays at a nearly constant  temperature in different conditions.  To use it, you have to set the air temperature at 0 °C (32 °F) and the body temperature at 37 °C (99 °F), and click Play. After a simulation of 1 hour, then click Pause and gather the information. Then, do the same cprocedure  to test the effect of other factors and Click Reset between each trial. To determine the effect of different factors on body temperature, you have to compare the  final body temperature to the final body temperature while  there is no specific movement or change.

Then:

1. Initial air temperature: 0 °C (32 °F)

2. Initial body temperature: 37 °C (99 °F)

3. The expected effect of different factors on body temperature are:

   A. Raising air temperature: Increase

   B. Lowering air temperature: Decrease

   C. Adding clothing: Increase

   D. Exercising: Increase

This is for a logical reason, anything you do to heat it or generate heat, will increase the temperature. And anything you do to generate cold, will lower the temperature.

The effect of different factors on body temperature according to Gizmo:

   A. Raising air temperature: Increase

   B. Lowering air temperature: Decrease

   C. Click Add to a sweatshirt, hat, pants, and  parka. Then, adding clothing:

   Maintained

   D. Set the Exercise level to 70%, then exercising: Increase

When the temperature increases, it is because you are able to record the results from the software and you see temperature goes from 99 °F to 100 °F. When the temperature decreases. it is because it goes from 99 °F to 97 °F. When it is maintained, there is no change.  

5 0
3 years ago
"The drug naloxone can be used to counter the effects" of a heroin overdose by binding to opioid receptors and preventing heroin
Verizon [17]

Answer:

Naloxone is an antagonist at opioid receptors and heroin is an agonist at opioid receptors

Explanation:

An agonist is a substance that binds to a receptor and causes a biological reaction. In this case, heroine binds to opioid receptors. An antagonist blocks the reaction from the agonist, impeding the receptor's activation. Agonists and antagonists work for specific receptors, and for an antagonist to block an agonist they must bind to the same receptor, like naloxone does with heroin. Giving an antagonist that binds to one receptor and and agonist that binds to a different one means that the antagonist will have no effect.

6 0
3 years ago
Could a mutation in one of an individual's somatic cells be passed on to the individuals offspring
NemiM [27]
A Mutation in one of an individual's somatic cells will not be passed onto the offspring.
8 0
3 years ago
Which of these best explains why mitochondria are called the "powerhouses" of the cell?
Sindrei [870]

<em><u>Answer:</u></em>

They generate chemical energy in the form of ATP.

<u><em>Explanation:</em></u>

Mitochondria are the powerhouses of the cell because they "burn" or break the chemical bonds of glucose to release energy to do work in a cell. This releases energy (ATP) for the cell. The more active a cell (such as a muscle cell), the more mitochondria it will have.

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3 years ago
Use this portion of a dichotomous key for tree identification to answer the question.
LenKa [72]
<span>D) They are nonlobed, simple leaves and are attached oppositely on the branch.</span>
5 0
3 years ago
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