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nikklg [1K]
2 years ago
9

(08.01 MC)

Biology
2 answers:
Svetllana [295]2 years ago
7 0

Answer: cccccccc

Explanation:

snow_tiger [21]2 years ago
7 0

Answer:

I think the answer should be B, because skunk doesn't migrate or hibernate, and A doesn't make sense because when animal facing temperature drop and food shortage they do not speed up metabolic process, instead they will slowdown the metabolic process and save as much energy as possible.

(if you know what the correct answer is please tell me I'm stuck with this question too:) )

Explanation:

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Which of the following is not a part of all cells?
koban [17]
Its B.cell wall

ribosomes are used to synthesis proteins and other components required for cells 

endoplamsic reticulum is where the ribosomes are its a structure that helps to prepare the components and to bring them to the golgi body 

the cell wall is only present in plants (cellulose) and fungi (chitin) and it helps plants to regulate their water intake physically

the cytoplasmis present in all cells as the medium which organelles are suspended in and in contact with

hope that helps <span />
4 0
3 years ago
The diploid number of chromosomes in the mustard plant, Arabidopsis thaliana, is 10. Knowing this, answer the following question
lukranit [14]

Answer:

10 chromosomes/sister chromatids

Explanation:

Prophase is the first stage of cell division (mitosis). Prior to the cell entering the actual division stage, it undergoes a phase where it prepares its content and most importantly undergo the duplication of its genetic material (DNA). This DNA are found as chromosomes. It undergoes replication of its DNA in the S-phase of interphase stage.

Since Arabidopsis thaliana has 10 chromosomes, and each chromosome holds one DNA molecule, 10 molecules of DNA will be present in the mustard plant's genome. These 10 molecules of DNA will be replicated on another copy of chromosome which is identical to the template. This chromosomes are called SISTER chromatids i.e. replicated chromosome. Each sister chromatids are held together at the centromere and are considered one individual chromosome until they separate during anaphase stage.

Hence, at the Prophase stage, before separation, each sister chromatid (replicated chromosome) is considered as one chromosome. Thus, in the mustard plant with 10 chromosomes, it will possess 10 sister chromatids or chromosomes at the Prophase stage.

N.B: When sister chromatids separate during anaphase stage, they will be regarded as individual chromosomes.

6 0
3 years ago
1. Draw and label the parts of an ATP and ADP molecule. . 2. Explain (in diagrams) how energy can be \"stored\" using ADP and a
zlopas [31]
<span>Adenosine triphosphate (ATP) consists of an adenosine molecule bonded to three phophate groups in a row. In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. This occurs when a molecule of adenosine diphosphate (ADP) uses the energy released during cellular respiration to bond with a third phosphate group, becoming a molecule of ATP. So the energy from cellular respiration is stored in the bond between the 2nd and 3rd phosphate groups of ATP. When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work. Now its back to being ADP and is ready to store the energy from respiration by bonding with a 3rd phosphate group. ADP and ATP constantly convert back and forth in this manner.</span>

5 0
3 years ago
Read 2 more answers
Most of the aerobic respiration of a cell takes place in which structure?
Fed [463]
I believe it’s A in the question
6 0
2 years ago
Negative feedback occurs when the output of a pathway ____________ input to the pathway. Feedback loops are used extensively to
Sveta_85 [38]

Answer:

Inhibits

Explanation:

Some mechanisms are essential for maintaining homeostasis in the human body. One of the most used mechanisms by our body is the negative feedback system. It causes a negative change from the initial change. As mentioned in the question, this often happens in the hypolamo-pituitary axis, such as when the adrenal cortex produces cortisol, this same cortisol inhibits the adenohypophysis and hypothalamus. It's also important to mention that deregulation in this process can lead to an undue chronic increase in cortisol and can lead to diseases such as anxiety disorder.

6 0
3 years ago
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