2) which of the following is not one of the main components of the cell theory? a) cells must contain dna b) all cells come from other cells c) all living things are made of cells 7) a class of chemical called a neurotransmitter is important in the transmission of nerve impulses. neurotransmitters are packaged by the cell into small, membrane-bound sacs called vesicles. upon receiving a chemical signal, the vesicles move toward the cell membrane and fuse with it, releasing the enclosed neurotransmitters from the terminal end of the nerve cell. which organelle is most likely responsible for packing neurotransmitters into a vesicle? a) nucleus b) mitochondria c) golgi apparatus

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.

Adistinctive characteristic of mammals that is not observed in other vertebrates is