What is the definition of pigment in biology?

All the fluid inside the cell except the nucleus is called

What causes the most difference in air pressure? a) differential heating b) winds c) differences

Tyrone hears on the news that the AQI is 201. What does that mean? the air is unbreathable oxygen in the air is at a dangerous level the amount of pollutants in the air is unhealthy acid rain is likely to fall

If a man is homozygous dominant for bend fifth finger and a woman is homozygous recessive what's the probability that the offspring has a fifth bend finger

What is the most possible result of the higher concentration in the protozoan

What benefit would an improved muscle tone from strengthening the quadriceps femoris muscles provide?

What is a organism that makes their own food?

How many trophic levels are there in the following food chain? algae mosquito larvae dragonfly larvae - trout

If you were shipwrecked on the northwest shore of the sea of okhotsk, which of these physical regions would you most likely be closest to?

Why does the nucleus have a positive charge?