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Otrada [13]
3 years ago
9

Which of the following are benefits of cardio exercise? A. Resting blood pressure decreases B. Energy levels increase C. The hea

rt becomes more efficient D. All of the above
Biology
1 answer:
12345 [234]3 years ago
8 0

D is the correct answer.

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How does insulation keep building cool in the summer?​
exis [7]

Answer:

It slows down the entry of heat through the walls and ceiling.  

Explanation:

Insulation is a poor conductor of heat.

Thus, it takes a long time for the heat of the sun's rays to penetrate to the inside of the building.

If the building was cool to start with, insulation will help it stay cool longer.

7 0
3 years ago
What is the role of substance B in photosynthesis
lutik1710 [3]

Answer: The chemical equation shown represents photosynthesis. Carbon dioxide + A + light ---x---> B + oxygen. What is the role of substance B in photosynthesis? ... It stores chemical energy.

Explanation:

3 0
3 years ago
Read 2 more answers
Help please !! I really don’t understand this much☹️
morpeh [17]
Ok, so I wrote these out just to make it a little bit easier for you to understand what I am about to explain.

So for the first one you have two different traits that can be inherited- having freckles or having no freckles, F and f respectively. The dominant trait (or having freckles) is shown by the capital F, and is almost always expressed over the recessive trait, or the lowercase f. So, for example, if you have a genotype of Ff, the trait having freckles will show up instead of not having freckles. The only way that you could have the trait of no freckles show up is if there are two recessive alleles for having no freckles, or ff. In this case, you have two parents who are both heterozygous for the trait of having freckles, so in other words the mother has Ff and the father has Ff. Each parent passes down one allele to the offspring, so since you are breeding Ff and Ff, you should result in having the possible genotypes of FF, Ff, Ff, and ff. This means that there is a 25% chance that the offspring will be homozygous for having freckles, a 50% chance that the offspring will be heterozygous for having freckles and a 25% chance that they would be homozygous for having no freckles, or a 1:2:1 ratio.

Incomplete dominance is a little bit different that just a normal monohybrid cross. Instead of just the dominant gene showing up in a heterozygous genotype, both traits show up. So like the question says, if a homozygous red flower plant was crossed with a homozygous white flower plant, their offspring would not just be white or red, they would be pink because it is a mixture of white and red. So then if you crossed the heterozygous, or Rr plants, the result would be a 25% chance of getting a homozygous RR red plant, a 50% chance of getting a pink Rr plant, and a 25% chance of getting a white rr plant, or another 1:2:1 ratio.

Sorry for the wordy answer, but hopefully this helps you understand this a little better :)

4 0
3 years ago
Which part of the brain is indicated by the arrow below?
Alexus [3.1K]
A. Cerebrum.................
5 0
3 years ago
Read 2 more answers
A​ small, solid, elevated lesion on the skin is​ a:
olga_2 [115]

Answer;

-Papule

Explanation;

A papule is an area of abnormal skin tissue that is less than 1 centimeter around. A papule has distinct borders, and it can appear in a variety of shapes. Papules are often called skin lesions, which are essentially changes in the color or texture of your skin.

-Papules and pustules are the result of an increase in oil and bacteria trapped inside the pore by dead skin cells. Papules occur when the clogging causes a hair follicle to become inflamed. When this happens, the body's immune system sends white blood cells to fight the infection.

8 0
3 years ago
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