Which of the following was not a challenge for survival of the first land plants?
a. sources of water
b. sperm transfer
c. desiccation
d. animal predation
e. absorbing enough light

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.