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Bond [772]
3 years ago
7

Why aren't all the cells in our body totipotent our entire lives ​

Biology
1 answer:
maksim [4K]3 years ago
8 0

Answer:

somatic cells have highly specific functions

Explanation:

In our body, the major part of cells is irreversibly differentiated into somatic cells. From a cellular point of view, this process of differentiation seems to be an evolutionary disadvantage. However, cellular differentiation is a process aimed at exploiting the genetic variation in order to obtain a highly specialized cell type that is capable of carrying out a specific cellular function. For example, keratinocytes are highly specialized epithelial cells that function by separating the organism from the surrounding environment.

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quzilet Which of the following occurs when DNA is replicated? Group of answer choices One strand of the parent DNA is preserved;
Bad White [126]

Answer:

The two strands of the parent DNA are separated, and two daughter DNA strands are formed.

Explanation:

DNA replication is a complex process which replicates or produces new DNA molecule from the parent DNA molecule mediated by enzymes and ATP.

The mechanism of DNA replication is known as the semi-conservative mode in which one new strand of DNA is synthesized complementary to the one strand of DNA. To form a new DNA molecule both the strand of the DNA gets separated and then a new daughter strand is formed complementary to each parent strand.

Thus, the selected option is correct.

4 0
3 years ago
Which of the following does NOT
Kazeer [188]

Answer:

D. Lots of vegetation

Explanation:

Urban heat islands form when cities replace natural land cover with dense concentrations of heat-absorbing pavement, buildings, and other surfaces. This has the impact of raising energy prices (for example, air conditioning), air pollution levels, and heat-related sickness and mortality.

8 0
2 years ago
Read 2 more answers
The average conversion energy from producers to primary consumers is a. 1% b. 10% C. 50% d. 100%​
KATRIN_1 [288]

Answer:

The average conversion energy from producers to primary consumers is b. 10%.

Explanation:

This percentage actually holds true for all transfer of energy at any trophic level in the food chain. Majority of the energy loss can be attributed to metabolic processes that give off heat and other forms of energy. It is important to note that energy cannot be created nor destroyed, it is simply transformed from one form to another.

4 0
3 years ago
Research by social scientists suggests that it takes ____ percent of the population of a community, country, or the world to bri
Lady bird [3.3K]

Answer:

<em>The correct option is B) 5-10%</em>

Explanation:

We have seen and depicted various scenarios where we see how different changes arise and dominate the world. Social scientists suggest that as low as 5-10% people of a population are enough to bring about a change because people tend to copy what others are doing. Same goes for countries of the world. Each new popular technique which is learnt by one country tends to become popular and learnt by other countries. For example, the usage of a social app starts with a few members of a population using it and with time it becomes popular in the whole world.

7 0
3 years ago
Identify and describe the three invisible planes that divide the human body ?
LiRa [457]

Answer:

longitudinal (sagittal)

Coronal (frontal)

Transverse

5 0
3 years ago
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