Which type of t cell is involved in activating macrophages and stimulating development of cytotoxic t cells?

What structure allows gases to enter a leaf

Explain the processes of transcription and translation

What is the 5s and defined 5s

A person is swimming when a fish touches his foot. his heartbeat and breathing increase for a few seconds until he realizes the fish is harmless. which part of the nervous system returns his heartbeat to norma

What are two ways floods can be controlled?

Which phenomena can cause waves to form in the ocean? Check all that apply. strong winds Coriolis effect long-lasting wind differences in water density gravitational pull of the moon

Kepler's third law of planetary motion states that the square of a planet's orbital period is proportional to the cube of the average distance between the planet and the sun.

Which animal from a eusocial society

Why does meiosis produce cells with fewer chromosomes? a. it saves energy for the organism to produce fewer chromosomes. b. most of an organism's chromosomes are not useful to the organism. c.

Do genes determine specific traits in an organism