Molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers.
Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.
Answer:
Eukaryotic Multicellular Autotroph
One, a lot of mass extinctions are based on theories by scientist. Two, they all caused major changes in the Earth's systems (Ex. ecology, atmosphere, surface, and waters). Three, they all have theories on what caused it.
Also this is obvious but in all mass extinctions they wiped out a lot of lifeforms, 90% of anything that has EVER lived on the Earth is extinct.
Hope this helps! :-)
The question is incomplete as it does not have the options which are:
A) test cross
B) two-point test-cross
C) three-point test-cross
D) chi-square analysis
E) recombination frequency (r) calculation
Answer:
D) chi-square analysis
Explanation:
Chi-square analysis is a test which is used to study the relationship between the variables of a population. The Chi-square test is performed to test if the observed results are due to chance or is real.
To test this a null hypothesis is formulated which says that there is no relation between the variables. The chi-square test is used in various disciplines but in molecular biology, there are used in the linkage mapping and the Mendelian crosses.
Thus, Option-D is correct.
