BIOLOGY HIGH SCHOOL

Which particle of the atom has no charge? A.
electron

B.
nucleus

C.
proton

D.
neutron

Answers

Answer 1
Answer: D) Neutrons have no charge.
Answer 2
Answer: Neutron is an uncharged subatomic particle. (OPTION D)

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What organs control the amount of water in the body by filtering your blood and excreting waste products through urine? kidneys lungs heart brain
Which Best Describes why Plant cells have chloroplasts and animal cells do not A- Plant cells need chloroplasts to make DNA because most plant cells do not contain a Nucleus B- Plant Cells need chloroplasts to make food because most plants cannot move to get there food on their own C- I dont know D- Plants cells need Chloroplasts to move materials in and out of the cell because most plants cells do not Contain a Cell Membrane ​
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Fish, trees, and animals are important wildlife resources that we depend on for survival. Fish are a main source of food for many of the people in the world. Trees have been used to build and heat homes, make paper, and provide food for centuries. Humans hunt land animals such as deer, fox, antelope, and buffalo for food and other products. What can we do to protect wildlife resources so they will be around for future generations?

The heart is composed of how many loops?

Answers

The heart is composed of 2 major loops. One loop goes from the heart to the lungs while the other from the heart to the other parts of your body. When the heart is beating, it pumps up blood to all the parts of the body through these loops. Hope this answers the question. Have a nice day.

How does the contractile vacuole in a single-celled organism function to maintain homeostasis?a. It pumps water into the cell.
b.It pumps water out of the cell.
c.It pumps solutes into the cell.
d.It pumps solutes out of the cell.

Answers

Answer: "Option B- It pumps water out of the cell".

Explanation:

Vacuoles in the cell organism are responsible to maintain the amount of water in the cell body, to get stable in the environment vacuoles either  remove or absorb the water through the mechanism of osmosis or osmoregulation.

Homeostasis is the phenomenon of maintaining balance of physical and chemical conditions of organism according to the environmental conditions to survive in it.

In single celled organisms, contractile vacuole pumps out the water from the cell through osmoregulation and excess of water is pumped out by the contractile vacuole.      
It's b. When placed in a freshwater environment, the organism is in a hypotonic solution, so water would flow into the organism. To prevent from bursting the vacuole constantly pumps water out to make up for this.

What test may be used to determine if a stain is blood or not? Sessions-Briggs Color Test Van-Daniels Color Test Kastle-Meyer Color Test Mira-Curie Color Test

Answers

KASTLE - MEYER COLOR TEST can be used to determine if a stain is blood or not.

Kastle - Meyer color test is a presumptive blood test that is used to determine whether a stain is a blood or not. It is an easy and reliable forensic method of determining the nature of a stain in crime laboratory. The test involves using the indicator, phenophtalein to determine if hemoglobin is present in a stain. A positive result is obtained it the phenophtalein turn to a bright pink colour when it comes in contact with the stain.

Kastle-Meyer Color Test is used to determine if a stain is blood or not.

Which of the following statements about paper recycling is not true?a. Recycling one ton of newspaper can save 100 trees.
b. Recycling paper can lead to 74% less air pollution.
c. Paper recycling can save on the use of water resources.
d. Recycling paper can lead to 35% less water pollution.

Answers

The statement presented above that is not true about paper recycling is; A) Recycling one ton of newspaper can save 100 trees.

Paper recycling are the processes of reprocessing waste paper such as old newspapers and magazines into new paper products for reuse. Apart from saving trees from being cut, paper recycling has many other significant benefits such as reducing water and air pollution, saving on the use of water resources and energy. For every ton (200 pounds) of newspaper that is recycled, 17 trees are saved.


The false statement here is that; "recycling paper can lead to 35% less water pollution." The idea of recycling a huge environmental conservation effort.

What is recycling?

The term recycling has to do with the process of using a material for the same or another purpose rather than simply disposing the material after it has been used. The idea of recycling a huge environmental conservation effort.

The false statement here is that; "recycling paper can lead to 35% less water pollution."

Learn more about recycling- brainly.com/question/11861824?:

A population of 1,000 birds exists on a small Pacific island. Some of the birds are yellow, a characteristic determined by a recessive allele. The others are green, a characteristic determined by a dominant allele. A hurricane on the island kills most of the birds from this population. Only 10 remain, and those birds all have yellow feathers. Which of the following statements is true?

Answers

Answer:

Option B

Explanation:

Please see the attachment

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Answers

Amniotic cavity is the term used for the sac which protectsan embryo from internal and external pressures. It contains the amniotic fluid whichserves as the cushion for guarding the developing embryo and the system towhich it is being fed on. It is a crucial part of pregnancy to be able to taketests in diagnosing the fetus for possible defects and abnormalities and one ofthe methods used is the amniocentesis wherein samples of the amniotic fluid aresampled.
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