Answer:
Trees remove carbon dioxide from the atmosphere. Carbon dioxide is a greenhouse gas that causes global warming.
Explanation:
Trees take in carbon dioxide and release oxygen. Deforestation gets rid of trees, so carbon dioxide is no longer being absorbed. Since carbon dioxide is a greenhouse gas, meaning that it traps heat in the Earth's atmosphere, too much of it causes global temperatures to rise.
D, convection. It causes less dense material to rise and denser material to sink.
Answer:
The above statement is false.
Explanation:
<em>As we can infer from the question, Thymine is being replaced by Cytosine at position 3 of a genetic sequence. This means that only a single change is being made in the genetic sequence. This change will cause a faulty protein to be formed. The faulty protein will be associated with this genetic sequence. </em>
<em>Hence, not all of the changes existing between the cichlid and coelacanth/frog will be associated with this single base change.</em>
However, instead of replacement of C with T, if an addition or deletion of a base might have occurred, then the entire genetic sequence would have been altered causing many changes.
<h2>A) option is correct </h2>
Explanation:
Skin has two types of sweat glands: eccrine and apocrine
Eccrine glands occur over most of the body and open directly onto the surface of skin whereas apocrine glands open into the hair follicle, leading to the surface of the skin and develop in areas abundant in hair follicles, such as on scalp, armpits and groin
The eccrine gland is controlled by the sympathetic nervous system and regulates body temperature
In some animals, when internal temperature rises the eccrine glands secrete water to the skin surface, where heat is removed by evaporation
Eccrine glands when active are considered major thermoregulatory devices
Smaller mammals, such as rodents, cannot endure dehydration and hence possess no eccrine glands at all
Answer:
Exocytosis
Explanation:
Exocytosis refers to a cellular process in which the large molecules are transported out of the cell by the membrane-bound vesicles.
The process of exocytosis is an active process and is therefore driven by the ATP. The process of exocytosis is possible because of the fusion of the secretory vesicle with the plasma membrane which leads to the release of the material outside of the cell.
Thus, exocytosis is the correct answer.
