What protist changes shape constantly and flows around its food to engulf it?

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow

What is it called when lava when it erupts from the surface through volcanoes.