<span>Before answering the question, some explanation about the purpose of flow cytometry.
The cytometry analysis provides us with the presence and the abundance of </span><span>clusters of differentiation (CD), for example, the research of CD2, CD3 and CD4 in lymphocytes.
</span>These CDs will be marked (if they are present) with specific antibodies linked with different fluorochromes, and when the <span>cells exit the flow cell intersect, a laser detects these fluorochromes (representing CDs) and count them.
</span><span>The result will be displayed in a graph showing the frequency of the CDs with spots of different colours.
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The correct answer is skeletal development resulting in the movement of amphibians onto land and possibly evolved from lobe-finned fishes.
The initial lobe-finned fishes are bony fish with lobed, fleshy, paired fins that are connected with the body by a solitary bone. The fins of the lobe-finned fishes vary from those of all other fish in that each is borne on a lobe like, fleshy, scaly stalk protruding from the body.
This skeletal development will show that the species first developed in water and then gradually move onto the land and ultimately developed as species of land.
Each half would be a Hemisphere. I hope this helps.
Answer:
See the answer below
Explanation:
Anthers release pollen, which lands on the stigma of another flower of the same species. The pollen grain produces a pollen tube that grows down the style, to the ovary, and into the ovule. The sperm cell fertilizes the egg cell. The ovule develops into the seed, and the ovary becomes the fruit.
<em>During fertilization in plants, the anther which carries pollen releases pollen grains. Once the pollen lands on the stigma of a flower of the same species, it germinates. The pollen grain produces a pollen tube that grows through the style of the stigma down to the ovary and into the ovule. One of the sperm cells fuses with the egg cell of the ovule to form the zygote while the other sperm cell fuses with the polar nuclei to form the endosperm in a process known as double fertilization. After fertilization, the fertilized ovule becomes the seed and the ovary becomes the fruit. </em>
