Ladybird beetles such as the one shown are predators of aphids and serve as
natural controls for these crop-damaging insects.

What is one advantage of their use as a green agricultural practice compared with conventional agricultural practices?

a. it prevents water pollution.

b. it prevents air pollution.

c. it prevents soil erosion.

d. it protects endangered species.

Dna replication or repair occurs in a cell in all of thw following situations except when

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Speed is the ratio of the distance of an object moves to