Answer:
The correct answer is the first statement.
Explanation:
During animal development, a zygote divides further to give rise to an eight-cell stage that further gives rise to blastula and gastrula. The zygote refers to a diploid cell generated as an outcome of the process of fertilization, it proliferates various times to give rise to a blastula comprising a monolayer of cells.
The answer is A <span>Egg albumin, which is a translucent fluid, changes to opaque white solid after boiling.</span>
Answer:
In order for a collision to be successful by resulting in a chemical reaction, A and B must collide with sufficient energy to break chemical bonds. ... This minimum energy with which molecules must be moving in order for a collision to result in a chemical reaction is known as the activation energy.
Answer:
The correct answer is C) The current rate of extinction is high and human activities threaten biodiversity at all levels.
Explanation:
Extinction is a natural process in which certain species extinct because of the lack of adaptability to the changing environment or by other reasons but today extinction rate is increased by human interference.
In a study on fossils, it was found that earlier on every 10,000 species 2 gets extinct every century and when the extinction that occurred during the last century was calculated then it was found that approximately 500 species got extinct in past 100 years which was largely high then it would be in case of natural extinction.
This extinction rate is increased because of habitat loss of species by human interference and by threatening biodiversity at all levels by human activities. So the right answer is C.
It could be bad habits like Smoking and Alcohol. Others can't be controlled, it could be biological (your grandparents had it, your parents, and now you) . Others could have been prevented, like being Obese, or your just not in healthy shape.