Which trophic level does a fish represent in this food chain? algae → mosquito larva → dragonfly larva → fish → man

What is an ice age? A) a recent increase in the average global temperature near Earth's surface B) a period of time when temperatures across the planet are colder than normal C) a characteristic of winter that returns seasonally D) the loss of heat

If you had to select a microorganism that would be capable of killing the entire human population what would it be? Bacteria, virus, or fungi? Briefly explain why you have chosen this microorganism.

There is ___ cell division

What is the main advantage of the present system of scientific naming for classifying organisms.

How does this pill bugs return nutrients to the ecosystem?

What happens to atoms after an animal has died?

If an organism has high biological fitness in one environment, does that mean it would also have high biological fitness in another environment? Why or why not

Where is magnet the strongest A) at the poles B) South pole C) North pole D) None of the aboves

A piece of iron at 25 °C is dropped into a glass of water at 15 °C. Which statement is correct? Heat will flow from the iron to the water in the glass until both reach the same temperature.

What percent of the body is made up of plasma