<h2>Functions of spleen</h2>
Explanation:
The major functions of spleen besides filtering the blood of foreign materials and phagocytosis of old defective erythrocytes are:
- Initiate immune responses against infections by liberation of antigen and activation of lymphocytes (T and B cells)
- Secretes bactericidal agents which act against invading bacteria
- Secretes interleukins which promote the growth of lymphocytes or antibodies that act against pathogens
- Reservoir: Pools blood by storing thrombocytes, immature erythrocytes.
- Hematopoiesis: Blood cells like erythrocytes, lymphocytes and monocytes develop and mature in spleen especially during the early fetal life.
<span>The correct answer is B. Rhizoids absorb water and nutrients, while fruiting bodies release spores.</span>
<span>
Rhizoids of Fungi are similar to root hairs on vascular land plants. Rhizoids, release digestive enzymes and absorb digested organic material, so it is a feeding organ.</span>
<span>Fruiting body or sporocarp is a structure that is part of the sexual phase of a fungal life cycle and it contains spore-producing structures.</span>
Answer:
What Keene High school students are you reading about? And what scientist are you talking about? If you had given more information I would have helped. Anyways, just look at what it says in the book that the scientist did, and what the Keene high school students did. And see what they both have in common.
The answer is Letter C. A Petit Mal Seizure. A Petit Mal Seizure or Absence Seizure is a type of seizure that makes the victim unresponsive for a few seconds and returns to consciousness afterwards. Not remembering the seizure episode he/she had. Therefore, Lucas experienced a Petit Mal Seizure or Absence Seizure.
Answer:
The correct answer is - osmosis.
Explanation:
Paramecium lives in freshwater like the Potomac River which is hypotonic to the cytosol of the paramecium. Paramecium uses contractile vacuoles to transport the water from the lower concentration (outside of the cell) to a high concentration of solvent to the inside of the cells.
This process of cell transport is carried out by osmosis as their cytoplasm contains a higher concentration of solutes outside the cell. This excess water is collected into vacuoles called contractile vacuole that swells and finally internalized the water to the outside of the cell.
Thus, the correct answer is - osmosis.
