Answer:
advances in optics leading to the develupment of the hubble telloscope
Explanation:
i took the test hope this helps
1.Amniocentesis is a procedure which involves draining a small amount of amniotic fluid. Amniotic fluid contains a few cells from the fetus. Chromosomes in the cells, which contain the genetic information of the fetus, are examined for abnormalities
2. DNA testing, introduced in 1976, is used to identify specific gene disorders.
Answer:
Hope this helps!
Explanation:
Arterial blood carries oxygen, nutrients, and hormones for the cells. To reach these cells it leaves the small arteries and flows into the tissues. This fluid is now known as interstitial fluid and it delivers its nourshing products to the cells. Then it leaves the cell and removes waste products.
Antibiotics are ineffective against viruses<span> because </span>viruses<span> do not have cells.</span>Viruses<span> are infectious agents that live within the cells of other living things. </span>Antibiotics<span>work by breaking down the cell walls of bacteria or interfering with the bacteria's ability to repair its cell's DNA, according to How Stuff Works.</span>