Answer:
ultraviolet or infrared imaging- when you hold a paper up to light it may reveal somthing that was'ent there if you wrote it in lemon juice. In a similar way, forsencic scientists use UV lights to reveal any alteration or hidden writings on a piece of paper.
Answer:
No, because xanthophyll dissipates absorbed light as heat, and in low light environments, such dissipation would decrease photosynthesis and therefore growth.
Explanation:
Xanthophyll is one of the accessory pigments present in organisms. Being an accessory pigment, the function of xanthophyll is to dissipate the absorbed visible light. Since it dissipates the visible light, the light cannot be used by Chlorella to drive the light-dependent reactions of photosynthesis.
When a mutant Chlorella is grown in the shady region, the dissipation of light by xanthophyll would further reduce the rate of photosynthesis. This mutation is not an adaptive feature in shady regions where the rate of photosynthesis is already lower due to limited availability of light and therefore, would not be favored by natural selection and would not spread to the future generations.
The correct answer is C
<span>Erwin Chargaff's research found that there are two pairs of nucleotides in the DNA molecule, adenine-thymine, and guanine-cytosine.
Those two pairs of nucleotides are complementary and since they pair up in the DNA molecule, the amount of one nucleotide in the pair must be equal to the amount of the other nucleotide of the pair.
He also found that different species have different proportions of nucleotides, which proved that DNA is the carrier of genetic information, not the proteins.</span>
A decreased cardiac muscle contraction will result in a reduced cardiac output which means there will be less oxygenated blood that will circulate through the body. This will cause the supply of the energy is limited. When the demand of energy is increased, like when doing exercise or walking upstairs, the energy might be not enough. This can cause the elder to feel easily fatigue. Chest pain is also common as the heart could also not getting enough blood.
Decreased cardiac output also can cause lower blood pressure, make the elder be at risk of postural hypotension. The symptoms would be feeling dizzy if going stand right after wake up. Don't go stand after wake up. Try to sit down a moment instead so the blood pressure will not decrease too much.
Answer:
Lack of shelter.
Explanation:
Although I cannot see the graph of the population over time, I am assuming it was exponentially rising and then began to decline. This is because the parrotfish were able to populate only until the species ran out of shelter. Once it ran out of shelter, the exposed fish began to die due to predators or the environment.
It may also be because of the drastic decline of living coral reefs. As coral reefs die, so do livable habitats for the parrotfish. As a result, the parrotfish decrease in population as fewer corals are available for the fish to live in.
