Answer:
"Nitrogen fixation is carried out naturally in soil by microorganisms termed diazotrophs that include bacteria such as Azotobacter and archaea. Some nitrogen-fixing bacteria have symbiotic relationships with plant groups, especially legumes. ... Nitrogen fixation occurs between some termites and fungi."
Explanation:
Answer:
There will be a reduction in the population size of one or both species
Explanation:
Total→$120×80=$9600__suppose all 80 is girls
extra→$9600-$9210=$390
difference→$120-$105=$15
opposite→$390÷$15=26boys
girls→80-26=54
The prefix "poly-" means "more than one" and the suffix "-spermy" is clearly related to sperm. Accordingly, polyspermy is when more than one sperm fertilizes an egg, something that organisms try to avoid.
To avoid this extra fertilization, specific organisms can use "electrical polyspermy blocks" (the fast process), which changes the negative electrical charge of the egg to positive, thus repelling the also positively charged sperm. The slower prevention process is when an organism undergoes a secretion reaction, or a cortisol reaction, which contributes to envelopping the egg by changing its membrane.
Answer:
C...
Vitamin D-- Lack of sunlight--Brittle bones(rickets)
B...
Iron ---- Lack of sunlight, fish and eggs --- Anaemia