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WARRIOR [948]
3 years ago
15

1. Marine scientists get information about aquatic populations from which of the following sources?

Biology
1 answer:
-Dominant- [34]3 years ago
5 0

The answers, in order, are Commercial Fisherman, A technique for hunting, and if the sun is part of it, than it is false, if not, it is true... (I would go with True myself though)

I hope this helps!

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How do x-linked and y-linked diseases pass onto offspring?
avanturin [10]
By there DNA. When when x and y have sex they send there gene into the offspring
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3 years ago
Virtually all cells in the human body have the same DNA. What’s make some undifferentiated cells differentiated into brain cells
mariarad [96]

Answer:

Changes in gene expression

Explanation:

This phenomenon is the result of changes in gene expression. That means, how the information in the DNA is used by the cell. The genes that are active in the cells of the brain will be very different from the genes that are active in the cells of the bone marrow.

These patterns of gene expression are different for each cell, and dictate the identity of that cell. Gene expression patterns are controlled by a variety of factors in the cell that allow tissue-specific expression, such a transcription factors.

This can also be facilitated by another layer of regulation called epigenetics, which literally means "on top of" genetics, and refers to modifications of DNA (and the proteins around it), that can reflect and influence the activity of the genes within.

8 0
3 years ago
Which of the following does NOT occur in cells? Group of answer choices The conversion of sunlight into energy stored in chemica
seraphim [82]

Answer:

The use of heat to burn foodstuffs

The use of chemical energy to transport organelles through the cytosol

Explanation:

In plant cells, sunlight energy is converted into chemical energy in a process known as photosynthesis which happens in the chloroplast.

During respiration, cells generally metabolize nutrients to produce useful energy in the form of ATP.

<em>Heat is not used to burn foodstuffs in any cell while organelles are not transported through the cytosol in any cell.</em>

3 0
3 years ago
You have been growing some animal cells in a test tube. The cells grow for several days, then do not appear to grow as well. You
svetlana [45]

Answer:

D. There is no enough oxygen in the culture fluid

Explanation:

The cells in the test tube need to carryout one of the important metabolic processes of living organisms - respiration. The process involves the breakdown of glucose to generate energy for other metabolic processes in the cell.

Respiration can be carried out in the presence of oxygen (aerobic) or in the absence of oxygen (anaerobic). Human cells are primarily aerobic but can carryout respiration anaerobically in the presence of inadequate oxygen.

For aerobic respiration, glucose is broken down in the presence of oxygen to produce carbon-dioxide, water and energy in the form of ATP:

C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + ATP

<em>In the absence of oxygen, the glucose becomes converted to lactic acid and a smaller amount of ATP is produced as compared to aerobic respiration.</em>

<em>Hence, lactic acid gradually builds up in the absence of oxygen due to anaerobic respiration.</em>

The correct option is D.

6 0
3 years ago
Read 2 more answers
WILL HIGHER RANK/ REWARD:)
Sauron [17]
Number 4 is not part of the cell theory
4 0
3 years ago
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