Which of the following are most likely to be keystone species in an ecosystem?

A. small-bodied, primary consumers

B. symbionts

C. large-bodied, higher level consumers.

D. producers

Does prokaryotes consist of chromosomes?

How might annual fires affect the succession of a temperate deciduous forest

Tumors of the central nervous system arise from? a. neuroglia cells b. neurons c. fibroblasts d. dermal cells

Wich part of the blood is correctly paired with its function? a - red blood cells - fight infection. b-. plasma - transports wastes and hormones. c-. platelets - produces antibodies d-. white blood cells - carry oxygen.

The role of the cell membrane is most like the job of which person? a firefighter who evacuates people from a burning building a police officer who allows select people to enter and leave a crime scene a bus driver who drives the express route from

According to Kepler's second law, which factor is constant as a line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit? A. The amount of time B. The distance the planet moves C.

The different conservation efforts being applied to protect rainforests.

How would you classify the relationship between the different species of coral?

Which of the following illustrates intraspecific competition? A sea gull swooping down to snatch a fish from the water's surface Male red-winged blackbirds defending limited nesting sites from other males A butterfly feeding on the nectar of a

What is one disease that follows the lytic cycle?