Answer:
having more air spaces around the spongy mesophyll cells
The fifth week of pregnancy is considered part of the embryonic stage of prenatal development.
During this stage, the embryo continues to grow in size, the placenta and the amniotic fluid begins to form, and the mother experiences several hormonal changes as a response to the embryo's implantation into the uterus of the mother.
The embryo's cells begin forming specialized functions in a process called differentiation. The baby's heart, spinal cord, and brain begin to develop, so as his/her blood cells, kidney cells, and nerve cells. His/her external physical features also begin to form.
The embryonic stage ends at the end of the 10th or the beginning of the 11th week of pregnancy, where the developing baby is now called a fetus.
Answer:
Explanation:
I think answer should be the first one
The kind of variation that must exist in a population that has a wide range of phenotypes is GENETIC VARIATION.
Genetic variation is started in a population's gene pools which contains all alleles. It is <span>is measured with allele frequency which are calculated by # of specific allele divided by total # of alleles.</span>
Answer:
<em>4) Active transport.</em><em> (hope this helps)</em>
Explanation:
In this process, dissolved molecules move across plasma membrane from a lower to higher concentration.... because they move against the concentration gradient, an energy from the cell is required.
