Explanation:
Some chromosomal conditions are caused by changes in the number of chromosomes. These changes are not inherited, but occur as random events during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in reproductive cells with an abnormal number of chromosomes
Chromosome abnormalities often happen due to one or more of these: Errors during dividing of sex cells (meiosis) Errors during dividing of other cells (mitosis) Exposure to substances that cause birth defects (teratogens)
Answer:
The sequence is b, a, d, c.
Explanation:
Pulmonary ventilation may be defined as be defined as the simple process of intake of oxygen and exhale of carbon dioxide known as breathing. Diaphragm contracts during inspiration and relax during exhalation.
The pulomonary ventilation occurs when the skeletal muscle contraction occur by the stimulation from the brainstem nuclei. This leads to the changes in the volume of the thoracic cavity. The thorax changes its shape by contraction and relaxation, this leads to the pressure change. Then air flows down the pressure gradient.
Thus, the correct sequence is b, a, d, c.
Answer:
Apicomplexans can be described as parasites which can cause diseases such as malaria inside the host cell. These organisms are known to evolve from the green algae. The remnant chloroplast present in them is used for various drug therapy studies. Their chloroplast can be used to test for various antibiotics and herbicides. This is because their chloroplast has evolutionary similarities with chloroplasts present in other organisms such as the cyanobacteria.
Answer:
c
Explanation:
for me Vibration in throat
