Answer:
Simple Diffusion across the Cell (Plasma) Membrane. The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.
Explanation:
Many rickettsia are PATHOGENS.
Pathogens are micro organism that cause diseases and rickettsia are majorly disease causing organisms. They are rod shaped bacteria and most species are gram negative. They are natural parasite of some arthropods and they cause diseases in both humans and animals.
Not for long. We use oxygen for cellular respiration and plants make oxygen so if all the plants died, we would only have so long to live
Answer:
THIS IS YOUR ANSWER:
<em>Science</em><em> </em><em>is a study of nature human</em><em> </em><em>beings plants animals chemicals and machines</em><em> </em>
<em>and</em><em> </em><em>pHySiCs is a part of science</em><em> </em>
☺✍️<em>HOPE</em><em> </em>IT HELPS YOU ✍️☺
