The bodys first line of defense against the enviroment, disease, parasites, and injury is made up of a.) blood cells b.) muscle cells c.) nerve cells d.) skin cells

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

Aprocedure done under controlled conditions to test a hypothesis is an inquiry.

Which of the following statements about polysaccharides are correct? choose all that apply. cellulose is a linear, unbranched polymer of glucose monomers. starch is typically more highly branched than glycogen. cellulose is a major component of both plant and animal cells. glycogen is a storage form of glucose in animal cells. glycogen is the most abundant organic compound on earth. starch and cellulose are found in plants.