Identify the major change in life forms that occurred at the end of preclambian times

1 answer:

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With the beginning of the middle proterozoic comes the first evidence of oxgen build up in the atmosphere. with is catastrophe came eukaryotic forms. these include multicellular algae, and toward the end of the proterozoic the first animals

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A point in development when organisms are particularly susceptible to certain kinds of stimuli in their environments, but the ab

kaheart [24]

The correct answer is B. Sensitive period

Explanation:

In development, the sensitive period refers to a lapse of time in which organisms are more susceptible or receptive to stimuli and therefore during this time there can be great advances in development. Additionally, different from critical periods sensitive periods do not imply irreversible consequence if the stimuli are not presented. For example, in human beings from birth to the age of 6 years, children are more receptive to learn and acquire certain skills such as learning a new language if exposed to it and therefore this can be considered as a sensitive period. Considering this, it can be concluded the definition presented refers to the Sensitive period.

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Which of these practices does the most to keep the water table from dropping near a farm?

taurus [48]

Hey there!

Option D would be correct.

Hope this helps, tell me if I am wrong!

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Which of these best explains why mitochondria are called the "powerhouses" of the cell?

Sindrei [870]

Answer:

They generate chemical energy in the form of ATP.

Explanation:

Mitochondria are the powerhouses of the cell because they "burn" or break the chemical bonds of glucose to release energy to do work in a cell. This releases energy (ATP) for the cell. The more active a cell (such as a muscle cell), the more mitochondria it will have.

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Nucleic acids offer variability because they contain alternate forms of genes called

pshichka [43]

Alleles. Hope it helps!

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In early pregnancy, what hormone stimulates growth of the corpus luteum? human chorionic gonadotropin follicle-stimulating hormo

disa [49]

Human chorionic gonadotropin (hCG) is secrete by the embryo early in pregnancy to keep the corpus luteum for dying. This positive feedback will maintain the corpus luteum, which secretes Progesterone and Estrogens throughout pregnancy, in order to keep the endometrium well to nourish the embryo/fetus.

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