Answer:
A
Explanation:
Helps with the reproduction of species and keeps them from extinction. Also the only answer with same-species animal to animal interaction.
Antibiotics are ineffective against viruses because viruses do not have cells. Viruses are infectious agents that live within the cells of other living things. Antibiotics work by breaking down the cell walls of bacteria or interfering with the bacteria's ability to repair its cell's DNA, according to How Stuff Works
Answer:
nitrogen-fixing bacteria is the answer
Answer: Stem cell research has the potential to treat diseases that are currently burdened with high health care costs—especially chronic conditions such as heart disease, Alzheimer's disease or diabetes, the costs of which threaten to cripple the healthcare system.
The most carbon carbon double bonds can be found in alkenes
