If a dna molecule is made up of 42% guanine what percent of it would be adenine

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

Analyze how the water cycle affects a food web. now list 3 examples for each below using complete sentences, on how too much water would affect the same web? how about to little water?

Kudzu vines grow by climbing and wrapping around trees. trees covered by kudzu can die because they are starved of sunlight. what type of relationship exists between the trees and the kudzu growing on them?