Hepatitis b is a liver infection spread by sexual contact, sharing injecting equipment, close contact with someone who has hepatitis b or any contact with contaminated body fluids. you can prevent it with vaccines. Im assuming the nurse instructs the students to get vaccines?
The greater amount of eumelanin in darker skin protects folate from being broken down by UV radiation and thus increases fitness among populations in high-intensity UV areas. ... However, it does not explain why there is variation in human skin color.
The choices are:
<span>A. The word haunted describes the boy’s ancestors. The word suggests their actions still affect him and influence his personality, even when he becomes an adult.
B. The word haunted describes items of antiquity. As a boy and as an adult, the narrator peers anxiously at old, unused items that make him feel uneasy.
C. The word haunted suggests that the boy is still haunted by memories of his childhood and his parents. The chest is a reminder of personal experiences he can’t ignore.
D. The word haunted describes the house the boy lived in. Even after he and his family moved to a new home, the memories of his fear stay with him.
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The answer to your question is B. I hope this is the answer that you are looking for and it comes to your help.
Answer:
C. Beak size is an inherited trait in the finch population under study.
D. Birds that could eat larger, tougher seeds survived and reproduced during the drought.
E. Beak size varies among the birds in the finch population under study.
Explanation:
The presence of genetic variations among the individuals of a population is required for natural selection to be operative. Natural selection targets the beneficial genetic variations present in the population. Natural selection refers to the differential reproductive and survival success of organisms of a population due to some beneficial genetic traits. These organisms with beneficial genetic traits are able to survive and leave more progeny under prevailing conditions.
If the natural selection has occurred in the ground finch population for the beak size, the beak size should be a genetic trait since natural selection works on genetic traits only. The finch population should have variations with respect to the beak size. The finches having the larger beak size that enabled them to feed on larger, tougher seeds should have higher survival and reproductive fitness during the drought.
Under these conditions, natural selection would favor the finches with larger beak size and would eventually result in an increase in the average beak size of the future generations.
Hey there!
Here are your answers:
<u><em>1. The proper answer to this question is "the Sun".</em></u>
Reason:
<u><em>The Sun is the ultimate source of energy for organisms it allows plants to use photosynthesis </em></u><span><u><em>to convert light energy into energy for that organisms and other organisms.</em></u>
<em>Therefore the answer is the Sun.</em>
Here is your second answer:
<u><em>2. The proper answer to this question is "</em></u></span><u><em>photosynthesis".</em></u>
Reason:
<u><em>Photosynthesis is the process that plants use to change (convert) light energy into energy (that other organisms can use). For example a apple tree uses </em></u><span><u><em>photosynthesis to make apples for humans, and other organisms to consume for energy.</em></u>
<em>Therefore the answer is </em></span><span><em>photosynthesis!</em>
<em>To sum up the answers are:</em>
<em>1.Sun</em>
<em>2.P</em></span><span><em>hotosynthesis</em>
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit</span>