Natural selection allows nature to chose which species survives. Only the fittest get to pass on their genes. And by fittest i mean the ones that are better adapted to the environment.

7 0

2 years ago

The bases found in the nucleotides of a DNA molecule are & there are chromosomes are

Tomtit [17]

Answer:

The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.

4 0

2 years ago

Red blood cells are a type of specialized cell that move _______ and carbon dioxide throughout the body.

lidiya [134]

Answer:

Red blood cells are a type of specialized cell that move oxygen and carbon dioxide throughout the body.

A structure made of two or more tissues working together to achieve a common function is a/an an organ 

cellular defferentiation describes the degree of specialization that a cell is able to undergo.

A/An embroynic stem cell can differentiate into all cell types found within an embryo.

In cytoplasm organisms, all cellular activities take place within a single cell.

7 0

2 years ago

Which statement best describes the relationship between plants animals and the carbon cycle

rusak2 [61]

Answer:

Explanation:

Plants use carbon and release oxygen, and animals release carbon and use oxygen.

5 0

2 years ago

Read 2 more answers