A frog lays thousands of eggs because many eggs die. This behavior is an example of . Competition overpopulation variation in a population artificial selection.

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

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