Answer:
A medida que la Tierra se enfrió, se formó una atmósfera principalmente a partir de gases arrojados por los volcanes. Incluía sulfuro de hidrógeno, metano y de diez a 200 veces más dióxido de carbono que la atmósfera actual. Después de aproximadamente 500 millones de años, la superficie de la Tierra se enfrió y solidificó lo suficiente como para que el agua se acumulara en ella.
Explanation:
lo siento, no soy español y usé el traductor de google
To help the frog to maintain homeostasis
<span>Active and passive transport help to maintain homeostasis because they transport fluid/water/materials across the plasma lemma (cell membrane). All of these materials need to exist in certain ratios for the cell to function properly. </span>
Answer:
B. DR, Dr, Rd, dr
Explanation:
This question involves two genes. Alleles D and R are dominant over alleles d and r. These two genes obey the law of independent assortment as proposed by Gregor Mendel.
Based on the question, a genotype RrDd will produce the following combination of gametes following the process of meiosis:
DR, Dr, dR, dr
<span>The ash trees are being cut when the show signs of
infestation of the ash borer. Ash borer in particular the Emerald Ash Borer
(EAB) is a tiny bug but can really do a great damage to the tree. When the tree
is infested with the ash borer, they lay their eggs in the bark of tree, when
the eggs hatch the lavas would start eating on the inner tissues of the tree
blocking the flow of nutrients and water in the tree that causes the tree’s to
death. If the tree is infested they cut
it down, burn and bury the wood to stop the spread of infestation. Ash trees
are valued for its strength and elasticity that is often used to make baseball
bats, bows, tool handles and other products that needs durable wood.</span>
