The most abundant elements in the body are hydrogen, oxygen, carbon, and what?

Answers

Answer 1

Answer:

Answer: The correct answer is nitrogen, calcium and phosphorus.

Explanation:

Elements are defined as the substances which are made out of same type of atoms. For Example: Hydrogen, Oxygen etc..

Human body is made up of various types of elements in which 6 are most abundant.

Almost 99% of the mass of human body is made up of mainly six elements. They are oxygen (O), carbon (C), hydrogen (H), nitrogen (N), calcium (Ca) and phosphorus (P).

About 0.85 % of mass of human body is composed of other 5 elements which are potassium (K), sulfur (S), sodium (Na), chlorine (Cl) and magnesium (Mg).

Hence, the correct answer is nitrogen, calcium and phosphorus.

Answer 2

Answer: Nitrogen, Phosphorous, and Sulphur. Remember the acronym CHNOPS: Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous, and Sulphur

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Which of the following is a consequence of water polluted by human sewage? a. pathogens
b. disease vectors
c. high levels of contaminants
d. all of the above

Answers

Answer;

-All of the above

-pathogens, disease vectors, and high levels of contaminants

Explanation;

Water pollution is a large set of adverse effects upon water bodies (lakes, rivers, oceans, groundwater) caused by human activities. Water pollution is caused by;

Increases in nutrient loading may lead to eutrophication.
Organic wastes such as sewage and farm waste impose high oxygen demands on the receiving water leading to oxygen depletion with potentially severe impacts on the whole eco-system.
Industries discharge a variety of pollutants in their wastewater including heavy metals, organic toxins, oils, nutrients, and solids.
Discharges can also have thermal effects, especially those from power stations, and these too reduce the available oxygen.

D. all of the above. I'm pretty sure

Which of these organisms would be a producer?A. fish
B. grasshopper
C. flower
D. snake

Answers

the answer is c because the producer makes its own food like a Plant

Answer:C

Explanation:First thing is that the sunflowers are producers because it makes their own food. Consumers don't so an alligator doesn't make it's own food so it's a consumer or predator the eagle does the same and the fish needs to find for food to survive.

Thank you.

In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. Which of the following crosses would produce offspring in the ratio of 1 red:2 roan:1 white? A) red × white
B) roan × roan
C) white × roan
D) red × roan
E) The answer cannot be determined from the information provided.

Answers

The answer is B) roan x roan.

Let's summarize:
R - dominant allele,
r - recessive allele,
RR - dominant homozygous with red color,
rr - recessive homozygous with white color,
Rr - heterozygous with roan color.

If we cross two heterozygous (Rr):

Parents: Rr x Rr
Offspring: RR Rr Rr rr

then, the offspring will be: 1 red (RR) : 2 roan (Rr, Rr ) : 1 white (rr).

Final answer:

The cross between roan (heterozygous) cattle would produce offspring in the ratio of 1 red: 2 roan: 1 white. This is a scenario of a monohybrid cross, yielding a 1:2:1 ratio in offspring.

Explanation:

In this genetics problem, 'R' represents red coat color gene, 'r' represents white coat color gene, and the combination 'Rr' gives a roan coat color. To get a 1:2:1 ratio of red:roan:white, the cross must be between two heterozygotes, or roan-colored cattle (Rr × Rr). So, the correct option is B) roan × roan. This type of cross, known as a monohybrid cross, yields a genotypic and phenotypic ratio of 1:2:1 (1 RR: 2 Rr: 1 rr) in the offspring.

Learn more about monohybrid cross here:

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Which best describes arteries and veins?

Answers

Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood towards the heart. Option A

What is the arteries?

The circulatory system has two different types of blood vessels: arteries and veins. They perform separate tasks and move blood in various ways.

Blood that has been oxygenated leaves the heart and is sent to other regions of the body by way of arteries. Because of their strong and elastic walls, they can endure the intense pressure that the heart's pumping motion creates. Arterioles, which are arteries that branch off into smaller vessels, carry blood to capillaries in tissues.

Learn more about arteries:brainly.com/question/33378057

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Which best describes arteries and veins?

a. Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood towards the heart.

b. Arteries carry deoxygenated blood away from the heart, while veins carry oxygenated blood towards the heart.

c. Arteries and veins both carry oxygenated blood away from the heart.

d. Arteries and veins both carry deoxygenated blood towards the heart.

The exact answer is: Arteries carry blood away from the heart; veins carry blood back to the heart.

~convert energy~have its own DNA
~found in almost all cells
~enclosed by two membranes

Answers

(Chloroplasts)
are found in unicellular organisms such as plants, and
(Mitochondria)
is found in almost all cells. (Chloroplasts convert light energy into sugar using photosynthesis,) and the (mitochondria converts sugar into ATP using cellular respiration.)

Both the mitochondria and chloroplast convert energy, have its own DNA, and are enclosed by two membranes.

:) Good?

carbon is released to the atmosphere as carbon dioxide when you breathe during the process of ___ or through the ____ of dead organsims

Answers

respiration or through the decomposition

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