Because the interior of the lipid bilayer contains the nonpolar _____molecules__________, only small nonpolar substances are able to diffuse directly across the cell membrane
Answer:
C. At least five mass-extinction events have occurred during the last 500 million years.
Explanation:
- The history of mass extinct is related to the five mass extinctions that are caused over by the 350 million years n which many species have disappeared in there short geologic time.
- A massive extinction is caused in the Permian Triassic extinction event i.e about 250 mn years ago which on an estimate has killed 90% of the species.
- The Cretaceous–Paleogene extinction event that occurred over 66 million years ago is known to have wiped out the dinosaurs and many other species.
Bright sunlight, lack of competitors, and more carbon dioxide
Answer: Aspergillus
Explanation:
Aspergillus is the fungal species which is highly aerobic in nature. It is found in the oxygen rich environment. This fungal species grows as molds typically over the substrate, as a result of high oxygen tension. The molds are toxic in nature. It grows over certain fruits, vegetables like apricots, peanuts, onions and grapes. It is the common contaminant of food. It is responsible for causing liver cirrhosis.
On the basis of the given situation this can be said that Steve is infected by Aspergillus.
