Answer:
microspheres expand by absorbing other molecules until they reach an unstable size, where they then split into smaller microspheres.
Explanation:
A. Enzymes speed up chemical reactions because the time needed to activate the reaction is lowered.
Answer:
C. both a and b are correct
Explanation:
#carry on learning
Answer: The cell membrane invaginates and pinches off, creating a vesicle within the cell.
Explanation:
Endocytosis is an active transport mechanism, for particules to be transported, the plasma membrane of the cell invaginates, forming a pocket around the target particle. The pocket then pinches off, resulting in the particle being contained in a newly created intracellular vesicle formed from the plasma membrane.
Answer:
with each heartbeat,the heart pumps blood throughout our bodies,carrying oxygen to every cell,after delivering oxygen the blood returns to the heart the heart then sends the blood to the lungs to pick up more oxygen.
