Shivering occurs when the core temperature of the body begins to decrease which would threaten normal body function. Shivering is a response by the body to bring back temperature back to homeostasis. Trembling is the continual involuntary contraction of muscles. Muscle activity releases heat that warms up the body. This is the reason why we sweat during physical activities as the body sheds excess heat generated by the muscles in order to maintain the homeostatic body temperatures of 37 degrees centigrade.
Answer:
c. lactic acid fermentation
Explanation:
If we did alcoholic fermentation, working out would make us feel drunk, not sore. This is only done by yeasts (a type of fungus) and bacteria. Glycolysis is simply an anaerobic process that occurs with fermentation and also regular aerobic respiration. It doesn't cause any soreness on its own. The Krebs cycle is the second major part to cellular respiration; it produces 6 NADH's, 2 FADH2's, 4 CO2's and 2 ATP; it's not involved in creating any soreness, as cell respiration does not create soreness. That leaves lactic acid fermentation, which we, bacteria, yeasts, and other organisms do. This is what we do when we run out of ample oxygen while doing some strenuous activity. Glycolysis is done with it. Glycolysis, however, relies on NAD+ to create ATP we need to maintain the same level of activity, lactic acid is produced as it accepts the 2 electrons and [H+] NAD+ should accept.
Macrophages are phagocytic cells which are involved in endocytosis. It is a process of engulfing antigen. Endocytosis occurs when a cell destroys something such as a virus or an infected cell.
The correct steps of endocytosis in chronological order as follows:
6. Cell recognizes the viral particle as foreign material.
1. Cell surface receptors bind to the viral particle.
4. Cell membrane curves around toward the cell's interior.
3. Viral particle is surrounded by the cell membrane.
2. Lysosome within the cell encloses the viral particle.
5. Lysosome's digestive enzymes destroy the viral particle.
The genotypic ratio of the above cross will be 1:2:1, that is 1 homologous plant with axial flowers (AA), 2 heterozygous plants with axial flowers (Aa) and 1 homologous plant with terminal flower (aa).
