Select the correct answer.
Based on these descriptions, which man is impotent?
Jacob has a low sperm count.
Reuben has a blocked vas deferens.
Leon is unable to sustain an erection.
Troy's testes have not descended into the scrotum.
СА.
Jacob
B.
Reuben
Leon
D.
Troy

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

This group of organisms perform the process of ammonifcation. a. herbivores b. decomposers c. carnivores c. plants

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land