Chloroplast Is the structure that a plant cell uses to produce its own food
Answer:
Biomass is an organic matter that cointains stored energy,
Extra stuff reguarding the answer:
such as animals waste, crops, wood, seaweed
Answer:
A
Explanation:
Process of elemenation also its kinda the only relevent one....
<span>we estimate that identical twins with Down syndrome occur at the rate of 1 or 2 in a million pregnancies and non-identical twins at the rate of 14/15 in a million. If the likelihood of having a twin or twins with Down syndrome is also linked to a family history of twins, to age or to assisted pregnancies, we presume these factors will play a part in increasing the risk for some individuals.</span>
Answer:
A quarter of the sample.
Explanation:
Let the quantity at the beginning be T. If the element has a half-life of 1,000 years, it means that after 1000 years, T/2 (which represents half the initial quantity available) would have decayed, remaining T/2.
After another 1000 years (making 2000 years), T/4 (which represents have of the quantity left after the first 1000 years) would have decayed, remaining T/4.
This means that only a quarter of T would be left after 2000 years.
