Cell differentiation is mediated primarily by gene expression levels.
<h3>What is cell differentiation?</h3>
- It is likely that all cells originate from stem cells and acquire their functions as they develop.
- Stem cells are typically positioned at the top of a hierarchical structure that represents cellular composition.
- Cell differentiation is crucial because it fosters diversity in our body's cells as well as in life on Earth.
- It also enables cells to develop distinctive structures that are appropriate for their particular roles.
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There are four general conditions that must be met for natural selection to occur, these are: variation among organisms of the same species, large production of offspring, variation in individual fitness among members of the same species and variation in heredity. So from the question given above, the conditions that are required for natural selection are option A, B AND D.
Before a cell divides, its DNA is replicated (duplicated.) Because the two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner.
Answer:
B) Lysosome
Explanation:
Lysosomes are cell organelles that found in eukaryotic cells. Lysosomes consists of a double membrane as a covering and an interior made up hydrolytic enzymes. These enzymes, which also known as digestive enzymes, have specific various catalytic functions in the breaking down of proteins and other complex molecules. Some examples of these hydrolytic enzymes that is found bounded in lysosome include proteases,glycosidases, phosphatases.
Answer: Stress, ageing, more muscle.
Explanation:
The rate at which the body uses the energy of the body that we get from food in order to support the basal metabolism of the body is known as basic metabolic rate of the body.
The BMR of women is 1300-1500 calories and Men Has a BMR of 1500-1900 calories.
The factors that increases the BMR are stress, ageing, more muscle, et cetera.