Answer:
Natural selection depends on the enviroment
Explanation:
Natural selection does not prefer features that are superior in some way. Instead, it favors characteristics that are advantageous in a particular setting. Characteristics that are beneficial in one context may be harmful in another.
Answer:
pituilatry gland
Explanation:
The pituitary gland is sometimes called the "master" gland of the endocrine system because it controls the functions of many of the other endocrine glands. The pituitary gland is no larger than a pea, and is located at the base of the brain.
The answer is true because A and G always go together
Answer:
It would harm the few plants that benefit from mutualistic relationships with mycorrhizal fungi
Explanation:
Mycorrhizal relationship is a symbiotic relationship between fungi and the roots of higher plants. While the plant provides the fungi with food, the fungi supply the plant with nutrients and water extracted from the soil.
<em>Hence, if a wide-spectrum fungicide is used in a forest and it kills all the fungi in the forest, it will affect all the plants that share beneficial relationship with fungi in the forest.</em>
Hairs are tiny shafts of a protein called keratin. They are anchored in a group of specialised cells called hair follicles, which supply oxygen and nutrients to the root (or bulb) of the hair, and lubricate the hair with an oily substance called sebum.
The human body is completely covered with hair follicles, except on the palms of the hands, soles of the feet and the lips. Mostly, hair follicles are tiny, and the hairs they produce don't grow long enough to protrude from the pore.
The areas where hairs do protrude (and are visible above the skin) include the armpits, face, around the genitals, the front of the chest, the back, and most profusely, on the scalp of the head. A scalp typically contains about 100,000 hair follicles.
Hair is in a constant cycle of growth, rest, and renewal. Hairs grow and then are shed, but because they grow at different rates they don't all shed at once.
It takes about three years for hair follicles to produce a hair that grows, rests, falls out and then regrows, which means the scalp loses between 50 and 200 hairs a day.
