Answer:
its D if not C im nor sure but its one of those two
D. Adaptations that improve the chances an individual will have a
long life but that may not affect reproduction become more
common within a population over time
Answer:
21.81grams
Explanation:
According to the question, an agar medium requires the following ingredients: 21 grams (g) of
agar, 500 mg of dextrose, 3 dg of sodium, and 1 cg of potassium per 1,000 milliliters (mL) of distilled water.
Hence, the dry ingredient contain 21grams (g) of agar, 500milligrams (mg) of dextrose, 3decigrams (dg) of Sodium, and 1centigrams (cg) of pottasium.
We need to convert all units (not in grams (g)) to grams.
1grams = 1000milligrams
500 milligrams = 500/1000
= 0.500grams.
1grams = 10decigrams
3decigrams = 3/10
= 0.3grams
1grams = 100centigrams
1centigrams = 1/100
= 0.01 grams
Therefore, we have 21g, 0.500g, 0.3g, and 0.01g
The total dry weight of the ingredients will be:
21 + 0.500 + 0.3 + 0.01
= 21.81grams
Answer and Explanation:
a) which side of the heart collects blood from the body and pumps it to the lungs? The right side of the heart via the vena cava receives blood from the body organs into the right atrium. The resulting pressure forces the tricuspid valve to open and blood gets into the right ventricle.
b) which chamber receives blood from the lungs?
The left atrium through the pulmonary vein receives blood from the lungs.It then flows into the left ventricle through bicuspid valve.
c) which ventricle is more muscular, the left or the right? Explain.
The walls of the left ventricle is thicker than the wall of the right ventricle because the left ventricles pump blood under high pressure to the rest of the body and the left ventricle pumps blood a longer distance hence requires more force.
d) a valve is like a “one way street” in the heart that prevents blood from flowing backward. There is a valve between the atrium and ventricle on both the right and left sides of the heart. Why do you think valves are important in the circulatory system? The valves prevent back flow of blood into the ventricles when the ventricles relax.
Answer:
Active site of an enzyme must be attached to a substrate
Explanation:
Active site of an enzyme must be attached to a substrate
