BIOLOGY MIDDLE SCHOOL

ANSWER ASAP IM ON TIME TEST I WILL GIVE BRAINIEST Which of the following is not a reason the nitrogen cycle is important to life on Earth?
a.
All living things need nitrogen to make proteins.
b.
Nitrogen is radioactive if it doesn’t go through the cycle.
c.
Organisms cannot use nitrogen directly.
d.
All living things need nitrogen to make DNA.

Answers

Answer 1
Answer:

the answer to your scientifical question is D

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What r some facts about gymnosperms

Answers

1.) Gymnosperms are a vascular plant
 
2.) A plant that reproduces by the means of an exposed seed or ovule

(sorry its not a lot)

Andy lives in the southern hemisphere . What will he most likely experience in August

Answers

He would be experiencing winter because the northern and southern hemispheres have flipped seasons. Whenever it's summer in the Northern hemisphere, it's winter in the Southern, and vice versa.

fossils are commonly found in which type of rock? A.paleolithic B. sedimentary C. igneous D. metamorphic

Answers

B.sedimentary 

fossils are commonly found in sedimentary rocks
Fossils are commonly found in B. Sedimentary

What is the primary role of the endocrine system?

Answers

the endocrine system is used to control hormonal growth via both chemical and sexual development in the body. largely in teen years.

Final answer:

The primary role of the endocrine system is to control bodily processes through the production and regulation of hormones, which maintain the body's homeostasis, drive growth, metabolism, and sexual development. It comprises of endocrine glands and other organs that secrete hormones.

Explanation:

The primary role of the endocrine system is to control body processes via the production, secretion, and regulation of hormones. These hormones serve as chemical 'messengers' that drive cellular and organ activity, playing crucial roles in growth, metabolism, and sexual development. The endocrine system comprises of endocrine glands, which secrete hormones directly into surrounding fluids to be transported around the body via interstitial fluid and blood vessels.

Key components include the pituitary, thyroid, parathyroid, adrenal, and pineal glands as well as other organs like the hypothalamus, thymus, heart, kidneys, stomach, and small intestine, which contain cells with endocrine functions. Additionally, tissues like adipose tissue and even bones can produce hormones. By regulating the release of these hormones, the endocrine system aids in maintaining the body's homeostasis and adjusts physiological activity in response to changes in internal or external environmental conditions.

Learn more about endocrine system here:

brainly.com/question/29771202

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Bones in bird's wing and a human's arm are similar in structure

Answers

They actually are not, due to shape.
They are similar. This similar structure is referred to as homologous structure.

What might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart?

Answers

Considering answers;

-fever

-constricted veins

-swollen veins

-confusion


Answer;

Swollen veins


Swollen veins might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart.


Explanation;

Valves are structures that are found in the circulatory system both in the heart and the veins.

They function to prevent the back flow of blood.

They do so by ensuring the continuous flow of blood in one direction.

If the valves are not functioning properly it may lead to various effects such as swollen veins due to the back flow of blood which may lead to the pooling of blood in the extremities.

The answer is C. swollen veins.

Good luck :)
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