If this is a true/false question, the answer is true. oxygen and co2 exchange happens at the capillaries.
Answer: B. From the sun.
Most producers absorb energy from the sun.
The awnsers would be D for the first one and A for the second. Let me know if you want an explanation.
This law explains that the pair of alleles segregate from each other during meiosis cell division (gamete formation) so that only one allele will be present in each gamete. ... Every organism inherits two alleles for each trait. The two alleles of a pair are different, i.e., one is dominant and one is recessive.
The difference in concentration between solutions on either side of a cell membrane is a concentration gradient.
In the field of biology, a concentration gradient can be described as a difference in the concentration of molecules inside and outside of a cell. It is due to concentration gradient that molecules move into and out of a cell through the cell membrane.
Some molecules move from an area of higher concentration gradient to an area of lower concentration along the concentration gradient. Diffusion is an example of such a process.
On the other hand, some molecules move from an area of lower concentration to an area of higher concentration against the concentration gradient. Active transport is an example of such a process.
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