Hey there Rayan!
To start off this, one things to take to mind, each transports (concentration) are very different. They both travel at different speed's. For concentration gradient not require the expenditure of cellular energy for this process. This would indicate that the speed on this concentration would be alot slower and also <span> concentration gradient have smaller walls.
Hope this helps you!
~Jay</span>
I think this is it: <span>The Proterozoic eon was the last of the three eons during the Precambrian supereon.</span>
Answer:
See the answer below
Explanation:
<em>Hemophilia typically affects more males than females because the disorder is </em><em>X-linked </em><em>and </em><em>recessive</em><em>. </em>
<u>Females have two X chromosomes (XX) while males only have one X and one Y chromosome (XY). The two X chromosomes in females are capable of carrying alleles while the Y chromosome in males is hypothesized not able to carry alleles. </u>
Consequently, the two X chromosomes in females will both need to carry the recessive allele of hemophilia in order for any female to be affected for hemophilia while the males only need their single X chromosome to carry the recessive allele in order to be affected.
In order words, the presence of a single recessive allele is not enough for a female to be affected while it is more than enough for a male to be affected. Hence, more males are affected b hemophilia disorder than females.
Answer:
Explanation:
Birds with longer, thinner bills, such as hummingbirds, bananaquits, and sunbirds, insert their bills into the flower so they can lick at the nectar directly. ... Nectar-eating birds are called nectivorous if nectar does make up a large proportion of the majority of their diet, such as with hummingbirds.
Answer:
Each organism absorbs minerals produced by the other
Explanation:
Lichen is a symbiotic association between fungi and alga. The fungus is able to absorb essential mineral ions like calcium, phosphate and potassium better than the alga thus benefiting the alga. The fungus in return gets organic materials from the alga. The alga provides organic nutrients for the lichen through photosynthesis and the lichen provides protection from drying out because the alga lives within the fungus's cell wall.