There are three and they are the Atmosphere, lithosphere, and hydrosphere
Answer:b; exocytosis
Explanation: leukocytes are amoeboid white blood cells, which are involved in immune response .such response included combating foreign bodies like micro organisms which invade the body.they do this by engulfing the micro organisms and digesting them.
Phagocytosis, pinocytosis, receptor mediated endocytosis are the ways in which the cells engulfs the Invaders.
In endocytosis,the membrane of the cell traps the organism by forming an invagination.it then encloses the micro organism and digests it.
Answer:
that is the egg and is trying to hatch
Explanation:
Answer:
Natural selection.
Explanation:
Natural selection is when organisms who are most adapted to their environment survive and pass on their genes while those with "unfit" genes die and don't get the chance to reproduce! This slowly creates a population that is most well suited to their habitat. Hope this helps again LOL! :)