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Mashutka [201]
3 years ago
14

How does direct and indirect sunlight play a role in the length of our shadow?

Biology
1 answer:
Lunna [17]3 years ago
8 0

Answer:

When we are outside on a sunny day , we can see how our shadows change throughout the day. The position of the sun affects the size of a shadow. A person or object blocks more light when the sun is low in the sky. More blocked light makes shadows longer. This makes shadows shorter.

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Which of the following statements is not true of the circulatory system and its transport of nutrients?
Vladimir [108]

Answer: b. Nutrients that leave the small intestine via blood are delivered first to the liver.

Explanation:

Lymph is a clear fluid that leeks out from the interstitial spaces of the cells and this comprises of electrolytes, blood proteins, and antibodies. It is pushed towards the heart from the lymphatic vessels. The nutrients from the small intestine are drained into the bloodstream and they are circulated to all parts of the body and not directly destined towards the liver.

5 0
3 years ago
Which variable is likely to undergo the largest change in value resulting from a mutation that introduces a new allele into a po
dsp73

Answer:

b. average heterozygosity

Explanation:

From the available options:

a. nucleotide variability

b. average heterozygosity

c. average number of loci

d. geographic variability

Nucleotide variability represents a form of genetic variation that occur as a result of difference in nucleotide sequence of deoxy ribonucleic acid.

The locus is a region on the chromosome where genes are located. Average number of locus thus refers to total number of loci per total number of individuals in a population.

Geographic variability refers to difference in genetic traits across the various geographical distribution of a population.

Average heterozygosity is the percentage or proportion of heterozygous individuals for a trait within a population. It is a common measure of genetic variation in a population.

When a mutation occur within a population and this leads to the introduction of a new allele at a locus for which some individuals within the population are homozygous, it will directly affect the average heterozygosity of the population because more individuals will lose their homozygosity and become heterozygous.

<em>The correct option is b.</em>

4 0
3 years ago
If you were given a 3D microscope to use for photography, which object(s) would you most want to photograph? Why?
Troyanec [42]

Answer:

Explanation:

I would like to photograph a tulip, because I have always been interested to know more about some flowers and what’s in the inside of them. Even though tulips look pretty “simple” but beautiful in the outside, I suspect that there are a thousand of different things inside of it.

8 0
3 years ago
Which illness is most closely associated with time-temperature abused rice or other starchy foods?
pav-90 [236]
The answer is <span>Bacillus cereus

It is a bacteria responsible for some foodborne illnesses that can be found on rice products, potatoes, and pasta. This can be prevented through time and temperature control. The effect on a person having this kind of bacteria is nausea and diarrhea. 

One solution to prevent this is to give the right temperature through right cooling so germs cannot multiply. </span>
3 0
3 years ago
12. Name the two systems that control blood pH
GarryVolchara [31]

The buffer systems functioning in blood plasma include plasma proteins, phosphate, and bicarbonate and carbonic acid buffers. The kidneys help control acid-base balance by excreting hydrogen ions and generating bicarbonate that helps maintain blood plasma pH within a normal range.

6 0
3 years ago
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