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kirill [66]
2 years ago
10

Why is much of the world population currently experiencing a water crisis

Biology
1 answer:
Y_Kistochka [10]2 years ago
8 0

Answer:

Because water is becoming scarce

Explanation:

Due to over using, global heating, etc. water is lessening.

I hope this helps :)

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Elena L [17]
I do not get it can you explain any better
8 0
3 years ago
1. A couple of mice with brown fur and black eyes had litter with the following distribution of traits: 9 with brown fur and bla
Ierofanga [76]

Answer:

The genotype of the couple of mice is heterozygous.

Explanation:

First, we going to classify each trait as dominant or recessive allele:

Brown fur: It’s a dominant allele because 12 of 16 mice have brown fur, therefore 75% of the litter have this trait.

Black eyes: It’s a dominant allele because 12 of 16 mice have black eyes, therefore 75% of the litter have this attribute.

Grey fur: It’s a recessive allele because only 4 of 16 mice have this trait, so 25% of the litter have grey fur.

Red eyes: It’s a recessive allele because 4 of 16 mice have red eyes, so 25% of the litter show this trait.

Second, we going to name each phenotype with a letter and use a capital letter for dominant allele or a small letter for recessive allele.  

For the color of the fur, let’s use letter “F”:  

F: Brown fur

f: Grey fur

For the color of the eyes, let’s use letter “E”:

E: Black eyes

e: Red eyes

The genotype of each phenotype is conformed by two letters that indicates, the recessive allele is showed in the phenotype only when both letters in the genotype are small letter.

For example, for fur, there are three combinations:

FF: Brown fur (two dominant alleles)

Ff: Brown fur (A dominant allele and a recessive allele)

ff: Grey fur (Two recessive alleles)  

For eyes, there are also three combinations:

EE: Black eyes (two dominant alleles) (

Ee: Black eyes (A dominant allele and a recessive allele)  

ee: Red eyes (Two recessive alleles)  

When both allele of the genotype are dominant or recessive, it is heterozygous, if there are a dominant allele and a recessive one, it is a homozygous.

Since there are 7 mice that show recessive phenotype, that means the genotype of the couple of mice are heterozygous. Although, both mice show a dominant phenotype, the genotype have a dominant allele and a recessive allele.

The genotype for the couple of mice is:

FfEe x FfEe

So, when we apply the Mendel's third law, we got the results showed in the chart.

5 0
3 years ago
While le examining a rock surface, you have discovered an interesting new organism. Which of the criteria will allow you to clas
Over [174]

Answer: something foods you eat can cause you skin another color

Explanation: you body is made of cell

5 0
3 years ago
Which body system includes vitamin D production and protection against pathogens and excess water loss?
Fantom [35]

Answer:

A. Integumentary system

Explanation:

The integumentary system consists of the skin,hair and nail. This system consists of the largest organ in the body. The skin helps in protection against pathogens by shielding the internal body system from external objects.

The skin also helps in Vitamin D production through sunlight.

It also helps to prevent dehydration through regulation of water loss.

7 0
3 years ago
The ileum contains ________ that project into the lumen and increase the amount of surface area.
Ivanshal [37]

The ileum contains villi that project into the lumen and increase the amount of surface area.

Villi are small finger-like structures that project into the lumen of the small intestine. Villi increase the surface area of the intestinal walls for easy and quick absorption of digested food with the addition of digestive secretions. Villi vary in length from about 0.5 to 1 mm. They are usually found in large numbers at the beginning of the small intestine and they reduce toward the end of the tract.


5 0
3 years ago
Read 2 more answers
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