Answer:
Destruction of the majority of the adrenal cortex would most likely result in decreased levels of mineralocorticoids, sex corticoids and glucocorticoids.
Explanation:
Adrenal glands are conical pyramid shaped glands. A pair of glands present above each kidney. It has an outer adrenal cortex region and inner adrenal medulla. Cortex and medulla secrete different hormones and are also regulated in different ways.
Adrenal cortex has three layers:
a. Outer zona glomerulosa: secretes mineralocorticoids like aldosterone - regulates the metabolism of sodium and potassium.
b. Middle zona fasciculata: secretes glucocorticoids like cortisol - regulates the metabolism of carbohydrates, fats and proteins.
c. Inner zona reticularis: secretes sex corticoids like Androstenedione - stimulates the development of external sexual characteristics in males.
In a condition called Addison's disease, major part of the adrenal cortex is destroyed which results in deficiency of both mineralocorticoids and glucocorticoids. Symptoms include bronze like pigmentation of skin, low BP, low plasma levels of Na+, high plasma levels of K+, nausea, vomiting and diarrhoea.
Answer:
D. They have longer life spans.
Explanation:
The species described as K-strategist have organisms with large body sizes. They exhibit slow development and have a long life span. These species attain reproductive maturity once the growth phase is complete. These species do not spend a large proportion of their metabolic energy on the production of offspring and do not produce a large number of offspring. They are found in the regions of relatively stable environments. Example: Redwood trees.
The organism that cerebral ganglia in its head connected to ladder-like arrangements of nerve fibers is
A. flatworms
A flatworm is an invertebrate whose central nervous system or the cerebral ganglia is connected to its body by means of ladder-like nerve cords.
Answer: unwinds, helicase, template, DNA polymerase, proofreading, ligase
Explanation:
False.
It can either be called Dependent or Independent variable.
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