All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to cells. Unlike bacteria, most viruses do cause disease, and they're quite specific about the cells they attack.
Answer:
The stage of cellular respiration which yields the most ATP is the electron transport chain.
Explanation:
Axon: the messenger cell that carries the command to contract muscles.
Answer:
The air at the equator is warmer and less dense and the air at the polls is cooler and more dense
Explanation:
air at the equator is constantly warm, has denser air, and barely cools and the polar regions are cooler therefore that means it is dense
The correct answer is option C. Endocrine glands secrete hormones into the bloodstream because endocrine glands are ductless and the exocrine glands have ducts so they secrete their hormones into the ducts.
