Answer:
6. We know because of bones and ancient fossils.
7. Yes, because we are currently making history right now as I write this.
8. About 5 or 4 billion years or 50 million years i think.
9. Charles Darwin was an English Biologist as well as a geologist.
10. Answer Depends on yourself, sorry
Explanation:
Answer:
23 chromosomes.
Explanation:
Human gametes have 23 chromosomes.Reproductive cells (gametes) are haploid - they have half the number of chromosomes as a body (somatic) cell. HOPE IT HELPS:)
Answer:
Diamond
it's hardness and dispersion of light make it useful in making jewelries and industrial applications
The<u> troposphere</u> is the lowest layer of our atmosphere.
The next layer up is called the <u>stratosphere. </u>
Above the stratosphere is the <u>mesosphere</u>.
The layer of very rare air above the mesosphere is called the <u>thermosphere.</u>
Although some experts consider the thermosphere to be the uppermost layer of our atmosphere, others consider the <u>exosphere </u>to be the actual "final frontier" of Earth's gaseous envelope.
The <u>ionosphere</u> is not a distinct layer like the others mentioned above.
Answer:
Because gene therapy procedures are still in their infancy, some hazards are unknown; nonetheless, medical researchers, institutions, and regulatory authorities are attempting to make gene therapy research, clinical trials, and approved therapies as safe as possible.
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