Answer:
A and D i think
Oxygen is ONLY released and others are taken in.
Gas exchange during respiration occurs primarily through diffusion. Diffusion is a process in which transport is driven by a concentration gradient. Gas molecules move from a region of high concentration to a region of low concentration.
Answer:
Sexual Reproduction. ... Organisms that reproduce sexually by joining gametes, a process known as fertilization, must have a mechanism to produce haploid gametes. This mechanism is meiosis, a type of cell division that halves the number of chromosomes. Meiosis occurs only in gamete producing cells within the gonads.
Explanation:
Answer:
A
D
Explanation:
mark me brainliest even if im wrong but im positive im right
Cytoplasmic division or cell division begins during anaphase of mitosis and continues as the cell pinches into two new cells.
During the proces of cytokinesis, the cell membrane pinches in at the cell equator, which forming the cleft called the cleavage furrow. The position which depends on the position of the astral and interpolar microtubules during the anaphase.During the process of anaphase, each pair of chromosomes is separated into two identical, and independent chromosomes.
The chromosomes which are separated by a structure that is known as the mitotic spindle.The cohesion proteins located between the sister chromatids disappear and the sister chromatids which located at the equator of the metaphase plate Anaphase where is starts,and separate and begin their migration toward the opposite poles of the mitotic spindle.
To learn more about cell division here
brainly.com/question/13312481
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Internal response; when a person is infected by a bacteria or virus, the immune system springs into action to fight against the infections. Geotropism and phototropism are dealing with plants and they way they grow, while fight or flight is a physiological reaction by the human body in stressful situations-- so they are incorrect.
