Answer:
E. 3, 6, 7, 4, 5, 8, 1, 2
Explanation:
Systemic circulation is the circulatory pathway which is involved in the transport of the oxygenated blood to the body when pumped by the heart through arteries, capillaries and then back to the heart.
In the given question, the order of vessels in the systemic circulation has been asked which begins with the entry of the deoxygenated blood to the heart.
1. The deoxygenated blood enters the blood from vena cava to the right ventricle.
2. From the right ventricle, the blood enters the right atrium which pumps the de-oxygenated blood to the lungs through an artery called the pulmonary artery.
3. In the lungs, the blood becomes oxygen rich and is returned to the left atrium through the pulmonary vein.
4. The blood then enters the left atrium which is then pumped to the body through the main artery called the aorta.
This completes the systemic circulation and thus, Option-E is correct.
Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
If a bacterium cannot use citrate agar will not change its color (stays green). On the other hand, if bacteria have the ability to use citrate, the medium will change its color from green to blue.
This happens because citrate agar contains pH indicator such as bromothymol blue which transforms from green to blue in alkaline conditions.
I would chose the 4th one because biome is made up of a bunch of little biospheres
Answer:
Antiseptics can be used on living tissue disinfectants work well on biofilms
Explanation:
Both antiseptics and disinfectants kill bacteria and inhibit their growth. However the big difference between the two is that antiseptics are used on living tissue such as skin while disinfectants are used on inanimate substances like the table tops of hospitals. Disinfectants usually have biocides that are not safe to apply on skin, mucous membrane, and tissue due to their toxicity. An example of an antiseptic is iodine while an example of disinfectant is Lysol.