Answer:
The correct answer is B. Quadriplegia is paralysis of all four limbs.
Explanation:
Quadriplegia is a clinical sign that causes total or partial paralysis of arms and legs caused by damage to the spinal cord, specifically in some of the cervical vertebrae, or by a disease that affects motor neurons, such as the amyotrophic lateral sclerosis. In some cases, following intensive rehabilitation, some mobility can be regained.
Answer:
When oestrogen rises to a high enough level it causes a surge in LH from the pituitary which causes ovulation where an egg is released from the follicle (Day 14 of the cycle). The follicle becomes the corpus luteum and this produces oestrogen and progesterone which inhibit FSH and LH production by the pituitary.
Explanation:
The right answer is B.
Nitrogen fixation is done by decomposers that are prokaryotes (bacteria).
<u>Take the example of legumes.
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The different species of rhizobia bacteria, which are able to infect the roots of legumes (Fabaceae family), are specific to certain host plants. Rhizobium phaseoli infects beans (Phaseolus sp).
Bacteria cause the formation of nodules on the roots by penetrating the root hairs, and transform into larger "bacteroids". The nodules are the seat of a symbiotic activity in which the plant provides the sugars and energy from photosynthesis, and in return benefits from the amino acids that are produced there.
Answer:
The change in PH not only effect the shape of enzymes, but it may also change properties the of substrate so that that substrate cannot control to bind the active site and it cannot undergo catalysis.
In general enzymes have a PH optimum. However this optimum is not same for each enzyme.
Explanation:
For Example; The enzyme pepsin is most active at an acidic PH, Whereas the enzyme trypsin performs best at slightly alkaline PH. the increase or decrease in PH can change the concentration of ion in a solution
