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kondaur [170]
3 years ago
11

Why are cells considered a necessary precursor to life?

Biology
2 answers:
SVETLANKA909090 [29]3 years ago
8 0

Answer:

A cell is considered as the structural and functional unit of life that is life cannot exist without a cell. It is also considered the basic level of organization of life.

A cell include all the structural components like:

1. Genetic material- which can be inherited,  

2. Organelles- performing specific functions like mitochondria (powerhouse), ER (protein synthesis).  

3. Proteins- which perform metabolism and provide structure to an organism.

4. Cytoskeleton- to provide structural support.

5. Cell membrane- which encloses all these components required for life.

All these structural components work in a coordinated manner to perform various functions from metabolism to energy production.

Thus, a single cell has the ability to start a life.

Leokris [45]3 years ago
6 0
Cells are called as the basic unit of life. The simplest forms on earth are bacteria and they are made of a single cell. Cells make up the smallest level of a living organism such as yourself and other living things. A cell called as the necessary precursor of life because the cellular level of an organism is where the metabolic process happens that keep the organism alive. 
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Which muscles can flex, extend and abduct the arm?
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The correct answer is C.
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Which term is correct for one female arctic fox? biome species ecosystem organism
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Answer:

D.) Organism

Explanation:

On the basis of biological organization, one  female arctic fox will be considered as an organism.

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3 0
2 years ago
A ____?___ allele exhibits its phenotype when it is present on both the chromosomes.
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A recessive allele is shown in the phenotype 
3 0
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Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure cal
nevsk [136]

Answer:

The answer is 46 chromosomes.

Before mitosis, cell duplicates its DNA material so there are 46 chromosomes in duplicates and in total there are 46 x 2 = 92 sister chromatids. During mitosis, sister chromatids first join in the middle of the cell and then separate towards the opposite sides of the cell. After they separate, there are 46 sister chromatids on the one side and 46 sister chromatids on the other side. Each sister chromatid at the end of cytokinesis actually represents the chromosome of the newly formed daughter cell.

Explanation:

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