Answer:
B
Explanation:
In summary,macromolecules are <u>large</u><u> </u> molecules and there are <u>five</u><u> </u><u> </u> types of them.
<span> The first designer baby was created in the U.S. in 2000. Doctors used screening techniques to test the embryos of Lisa and Jack Nash. They chose the embryos that would be an exact cell match to their daughter Molly. Molly suffers from a genetic disorder called Fanconi Anemia which causes bone marrow deficiency. The embryo selected did not carry the disease and was a perfect tissue match. <span>As a result, Adam Nash was born in August after Mrs. Nash underwent four IVF cycles. Stem cells were collected from his umbilical cord to be donated and used to replace Molly's bone marrow. (Baby created to save older sister)Since the creation of Adam, many more couples have created their own designer baby to save their sick child or prevent their offspring from inheriting a certain genetic disease. </span></span>
Answer:
<em>d) Surface tension from pleural fluid and negative pressure in the pleural cavity</em>
Explanation:
Pleural cavity can be described as the space which is present in between the pleura. Pleura can be described as the two thin membranes surround the lungs. These pleural cavity is responsible for holding the lungs to the thorax wall. It aids the functioning of the lungs at the time of breathing. It acts as a lubricant at the time of respiratory movements. Hence, the correct option is d.
Female gamete's are considered a megaspore in heterospory.
