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Degger [83]
3 years ago
12

13. If a stream or river stops flowing due to water scarcity, what disease may result from the stagnant water?

Biology
2 answers:
matrenka [14]3 years ago
6 0
They are exposed to diseases, such as cholera and typhoid fever, and other water-borne illnesses. Two million people, mostly children, die each year from diarrheal diseases alone.
Luda [366]3 years ago
3 0
“Malaria and dengue are among the main dangers of stagnant water, which can become a breeding ground for the mosquitoes that transmit these diseases.”
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What is the answer?
Darina [25.2K]

Answer:

\boxed {\tt 3}

Explanation:

An element only has <u>one</u> type of atom and cannot be broken down by chemical means.

Let's analyze the answer choices.

1. This has two types of atoms, so it cannot be an element. It has more than one type of atom.

2. This has two types of atoms that are bonded together. It cannot be an element because there is more than one type of atom and the bonds can be broken.

3. This has one type of atoms, so it is an element.  

Therefore the best answer choice is 3.

3 0
2 years ago
A plant with blue flowers is crossed with a plant with yellow flowers. Some of the offspring have green flowers. This is an exam
IgorC [24]

Option B

Blue and yellow are co-dominant traits and none of these traits are expressed individually in the off springs. Green color is produced after the combination of yellow and blue trait.


3 0
3 years ago
Read 2 more answers
Suppose you have one plant with the genotype TTPpYy, and another plant that is recessive for all three traits. If you were to cr
musickatia [10]

Answer:

16/64 = 1/4

Explanation:

This is a typical trihybrid cross involving three genes T, P and Y. A plant with genotype TTPpYy is crossed with a plant recessive for all traits (ttppyy).

According to Mendel's law of independent assortment, each allele for each gene will get sorted into the following 8 gametes with only 4 different: TPY, TPy, TpY, Tpy, TPY, TPy, TpY and Tpy.

The recessive parent, ttppyy will produce tpy, tpy, tpy, tpy, tpy, tpy, tpy and tpy.

Hence, using a punnet square, 64 offsprings will be produced with only 16 of them heterozygous dominant for the three traits with genotype (TtPpYy). Hence, proportion is 16/64 equivalent to 1/4.

6 0
3 years ago
A local area's short-term atmospheric condiſions are known
SashulF [63]

Answer:

O weather, climate

Explanation:

A local area's short-term atmospheric conditions are known  as weather while long term conditions are known as  climate.

I hope this helped :)

7 0
2 years ago
A difference between monocot and dicot angiosperm flowers that can help identify them is that dicots A. Grow flowers with petals
Tomtit [17]
That would be A.

Dicots grow flowers with petals in multiplies of 4 and 5, monocots in multiples of 3. See the attached pic:)

5 0
3 years ago
Read 2 more answers
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