The answer is 'Cambrian' explosion. This took place approximately 541 million years ago. 'Explosion' refers to the evolution of a large range of new major animal phyla. Scientists know this by the large number of diverse fossils from this period. Prior to this period, organisms were single-celled, but over the Cambrian Explosion, lasting about 80 million years, life forms diversified rapidly to resemble the life forms existing today.
Answer:
Explanation:
I would like to photograph a tulip, because I have always been interested to know more about some flowers and what’s in the inside of them. Even though tulips look pretty “simple” but beautiful in the outside, I suspect that there are a thousand of different things inside of it.
Correct option a) Increased plasma volume.
A potential negative health effect of stress is Shrinks the brain. Stress that's the left unchecked can contribute to many health problem, such as high blood pressure , heart disease , obesity and diabetes.
The volume of the brain tends to remain about the same, it has been found that chronic stress in healthy individuals can causes areas of the brain associated with emotions , metabolism and memory of that individual to be shrink slowly.
Stress can also be positive which is distress , getting job promotion or being given grater responsibilities keeping us alert and ready to avoid danger. It can became negative if a person faces continuous challenges without relief or relaxation between challenges.
To learn more about chronic stress here
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Answer:
Molecules always move from inside of the cell to outside if the cell
the answer is D.he conversion of restaurant grease to bio-diesel fuel for use by motorists.
