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.
The leading is replicated continuously for the entire length of the chromosome, while the lagging strand is replicated in pieces.
One of the most intelligent invertebrate animal is the octopus. These animals belong to the cephalopod class of molluscs. These animals demonstrate relatively complex reasoning especially when capturing prey. They also demonstrate their intelligence by their communicating skills and some even show signs of learning.
Answer:
An enzyme attracts substrates to it's active site, catalyzesthe chemical reaction by which products are formed and then allows the products to Daso create separate from the enzyme surface the combination formula by an enzyme and its abstract is is called the enzyme substrate complex.
