What kind of animal uses a hydraulic system to move?
a. snails
c. shrimp
b. roaches
d. echinoderms

Which of the following statements best describes the relationship between the environment and human health? a. the environment is the only factor that affects human health. b. many aspects of the environment can have an impact on human health. c. human health is impacted by changes in climate. d. the environment has no impact on human health. select the best answer from the choices provided

Aphids are tiny insects that feed on plants. ladybugs are to plants because they eat aphids. which type of organism are aphids in this scenario? co decomposers predators prey producers

The response is the basis for vaccination. primary secondary tertiary none of the above