Answer:
B.entire ecosystems are being destroyed
Explanation:
for the generation of new species, the present species should have to survive for the period of thousand years in order to produce and develop much better features to make them much better to survive and adapt themselves according to the time.
but in today word, the world living conditions are changing and threatening due to destruction of ecosystem by many activities performed by humans. These destruction will cause endangerment of the generation of the new species.
Answer:
Most water systems test for lead as a regular part of
water monitoring. These tests give a system-wide
picture, but do not refl ect conditions at a specifi c
household faucet.
If you want to know if your home’s drinking water
contains unsafe levels of lead, have your water tested.
Testing is the only way to confi rm if lead is present or
absent.
Some faucet and pitcher fi lters can remove lead from
drinking water. If you use a fi lter to remove lead, be
sure you get one that is certifi ed to remove lead by NSF
International.
Answer:
putting them in wildlife preserves
Explanation:
Answer:
3 yellow : 1 green
Explanation:
Yellow seed allele (Y) is dominant over the green seed allele (y).
A cross between two true breeding parents is done: YY x yy
The F1 offspring would be heterozygous Yy.
<u>If the F1 is selfed (Yy x Yy) the expected ratios for the F2 generation according to Mendel's law of segregation would be:</u>
- 1/4 YY (yellow)
- 2/4 Yy (yellow)
- 1/4 yy (green)
So 3/4 seeds of the F2 would be yellow because they have a dominant Y allele, and 1/4 would be green.
The phenotypic ratio will be 3 yellow : 1 green
Out of the following given choices;
<span>a.
</span>arytenoid cartilage. b. carina. c. secondary
bronchi. d. thyroid cartilage.
The answer is D. This is the largest bone of the larynx’s 9
cartilages and is visible as Adam's apple. They house the vocal cords. While it sits above the thyroids gland, it has no relation to the gland. It is composed
of two half cartilages and does not completely
encircle the trachea.