Why is it that two species cannot occupy the same niche for an extended period of time?

During respiration, most atp is formed as a direct result of the net movement of

What is the difference between Ostia and osculum?

What is the smallest, a bacterium, a red blood cell, a virus, or a muscle cell?

Mendel's law of segregation states that

What does the respiratory system eliminate when there is an excess of hydrogen ions in the body?

Bianca is very self-conscious about her weight. she indulges in strict dieting and often skips her meals. as a result, she was recently diagnosed with osteoporosis, an abnormal condition related to the thinning of bones.

All processes of moving materials across the plasma membrane are classified as either A) diffusion or osmosis B) passive or active transport C) phagocytosis or pinocytosis D) endocytosis or exocytosis

What three factors does a species diversity index take into account? a. Species richness, species diversity, and species productivity b. Species richness, species abundance, and species evenness c.

Wins or losses are the ultimate measure is competitive sports. True or false?

DNA, the genetic material of living organisms, is damaged by light in the A) visible region of the spectrum. B) ultraviolet region, especially below a wavelength of 320 nm. C) ultraviolet region, especially above a wavelength of 340 nm.