An organelle that contains a cell's dna

Which species concept defines a species as a group of organisms that are able to reproduce successfully and have fertile offspring?

Jim and tom are trying to determine whether their ideas are scientific or pseudoscientific. Jim's idea is non-testable, and Tom's idea gives different results to different scientists.

Which statements describe how plant and animal cells are different? Choose all answers that are correct. A. Plant cells have a cell wall for support; animal cells do not. B.

What does the letters represent on the homologous chromosomes?

The water in municipal water supplies is treated with chlorine because

People with one sickle cell allele are not likely to get malaria. what is this an example of? artificial selection natural selection gene flow genetic drift

How do hydrophobic signalling molecules travel around the body?

Drinking alcoholic beverages causes an increase in urine output. This most likely occurs because alcohol: inhibits ADH release stimulates ADH release inhibits TSH release stimulates TSH release

At what temperature does this enzyme works best

A solar flare is observed on Earth A) immediately. B) approximately eight years after it happens on the Sun. C) approximately eight hours after it happens on the Sun. D) approximately eight minutes after it happens on the Sun.