Ecological efficiency is the term used to describe how much energy will be passed from lower food pyramid level into the higher level. The amount of energy in primary level will be much higher than tertiary. The difference of level of tertiary(3) with primary(1) would be two level.
Assuming that the ecological efficiency is 10%, then the <span>primary consumer level would be: 50 kcal * 10^(3-1)= 5000 kcal</span>
-Crossing over occurs between prophase 1 and metaphase 1 and is the process where homologous chromosomes pair up with each other and exchange different segments of their genetic material to form recombinant chromosomes. It can also happen during mitotic division, which may result in loss of heterozygosity.
Je ne peux pas vraiment expliquer la réponse en raison de votre question confuse, mais voici une note pour faire des questions non confuses la prochaine fois
I am absolutely sure that fish and crustaceans are similar in that both use <span>gills </span>for gas exchange. Even though you didn't share any options to choose the correct one do not hesitate to use my answer, this one is right.
<span>If you place a cucumber in distilled water, it would eventually wither and die, because distilled water has none of the solvents that the cucumber needs to fuel its cells.</span>
