Answer:
The correct answer will be option-A
Explanation:
Phototropism is the set of the physiological and morphological response of plants to light.
The earliest experiment on the concept of phototropism was performed by Charles and Francis Darwin. They collected and grew the grass seedlings and found that the light was detected by the tip of the coleoptile but the response of bending towards the light was observed is the region of elongation.
This shows that the tip of the coleoptile is the correct answer.
Tetracyclines are antibiotics used against a wide range of microorganisms, such as bacteria, chlamydia, rickettsia and some protozoa parasites.
<span>They inhibit synthesis of protein in bacteria by inhibiting the binding of transport RNA and ribosome and</span> are effective against both gram-positive and gram-negative bacteria.
Answer:
The main function of cellular respiration is to break down glucose to form energy.
Addison's disease is a disorder
in which the adrenal cortex is damaged and the adrenal gland does not produce
sufficient steroid hormones (cortisol and aldosterone). Symptoms of Addison's
disease occur gradually and they include darkening of the skin, abdominal pain,
weakness, and weight loss. For the question above, Nick have Addison's disease.
