Because the molecules that are being transported is moving against its concentration. gradient. in other words, its moving from where it's low in concentration to where it's high in concentration.
Answer:
3/8
Explanation:
Martha has a widow's peak (dominant trait) and attached earlobes (recessive trait).
Martha's dad had a straight hairline (ww) and unattached earlobes (Ee, because she has the recessive alleles ee and both parents give us one allele).
This tells you that martha has a mother with at least one of both alleles dominant for widow peak and at least one recesive allele of attached earlobes
So, martha's alleles are: Ww and ee.
If she marries a man that is heterozygous for both traits (Ww and Ee) the probabilitys are
Ww Ee x Ww ee: WWEe, WwEe, wWee, and wwee
The answer is (a) always increasing
The correct answer is - The Mesohippus is older than the Pliohippus.
Trying to date the fossils according to the layers in which they are found can be very useful and relatively accurate. It has to be taken in consideration though that the layers of rocks should not be disturbed by geological processes, as that can give totally different results.
In this case, the fossils of the Pliohippus are found in layers closer to the surface, while the fossils of the Mesohippus are found in layers that further down, bellow the layers in which the Pliohippus fossils are found. This means that the Pliohippus is an animal that lived after the Mesohippus lived, thus making it a younger species, while the Mesohippus would be the older species.
