Which statement describes the chromosomes by the end of telophase of mitosis?
a. the chromosome pairs connect in a line across the middle of the cell
b. the chromosomes separate at the centromere and begin to move apart
c. the chromosomes have coiled and become more compact
d. the chromosomes reach opposite sides of the cell and begin to be incorporated into two new nuclei.
be

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.

Which of the following statements is correct in hour our immune system responds to a potential pathogen? a. the adapted immune system will call on the innate immune system to destroy the pathogen. b. b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c. the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. d. the t-cells in the adapted immune systems are the first to recognize the pathogen vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a. antigen, antibody b. antibody, antigen c. antibody, antibiotic d. antibiotic, antibody

According to cell theory; which structures carry out the basic function of living things? a. atoms b. organs c. cells b. nuclei