a major reason that human have negatively affected the environment in the past is that they

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Answer 1

Answer: Cars and other forms of transportation emit carbon dioxide and other harmful chemicals. Many trees are cut down, which reduces the amount of oxygen. Global warming causes the icecaps to melt, which means that some species in the arctic are dying out. Hope this helps!

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the third step in the cycle is the tolerance of negative consequences. Examples of these are physical damage, legal trouble, financial problems, academic failure, and family dissolution. 9. The fourth and last step is denial or the inability to perceive that a certain behavior is self-destructive.?
Air has a density of 0.001293 g/cm³. Which of these gases would make a balloon float in air? Check all that apply.*nitrogen, density: 0.001251 g/cm³ *carbon monoxide, density: 0.001977 g/cm³ *helium, density: 0.000178 g/cm³ *carbon dioxide, density: 0.001977 g/cm³ *hydrogen, density: 0.00009 g/cm³ *oxygen, density: 0.001429 g/cm³
A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh positive is a trait that shows simple dominance over Rh negative and is designated by the alleles R and r, respectively. A third gene for the MN blood group has codominant alleles M and N. Which of the following is a possible partial genotype for the son? A) IBIB B) IBIA C) ii D) IBi E) IAIA
What is geothermal energy

Which of the following best describes what can affect enzyme activity?

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Temperature, pH, enzyme concentration, substrate concentration, and the presence of any inhibitors or activators can affect enzyme activity.

The human body cells have ---- chromosomes.A. 40, 20 pairs
B. 46, 23 pairs
C. 90, 45 pairs
D. 140, 70 pairs

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The correct answer is B. 46, 23 pairs.

I hope this helped!

B.)46,23 Pairs

Each cell in the human body has 23 pairs of of chromosomes for a total of 46. This means that 22 of those pairs which are called auto - some's are the same in appearance in both males and females the 23 chromosome in both males and females are different.

I really hope that my answer helps you out. Have a nice day.

All living things break down _________ to make energy. carbon dioxide fuel light water

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water (-----------------)

Water.

All living organisms use some water. Some organisms more than others though.

Which of the following types of algae would have rigid cell walls composed of silica?a. paramecium
b. euglena
c. diatoms
d. spyrogyra

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c. It is among the most known form of phytoplankton and are usually unicellular!
You can find them arranging themselves in shapes by making colonies.

How do adrenaline help in dealing with emergency situations

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Adrenaline helps in emergency situation by providing energy so that the major muscles of the body can respond to the perceived threat.
In danger, the brain then sends nerve impulses to the adrenal gland in the kidneys. When the nerve signal reaches the adrenal gland, chromaffin cells, in the medulla of the adrenal gland, release epinephrine or adrenaline. It then enters the bloodstream. It is thus carried around the body to cells in various locations, where it initiates several responses.
1. Adrenaline, along with another hormone called glucagon, is responsible for the breakdown of glycogen in liver cells. Glycogen is a form of energy storage. This gives energy to the muscles
2. Adrenaline effects the skin also. Restriction of the arteries is caused by the binding of epinephrine/adrenaline to some alpha-adrenergic receptors. This cuts off blood supply to the skin. This results in the contraction of the smooth muscle cells in the skin, which cause the raising of the hairs on the surface of the skin.
3. The lungs contain smooth muscle. Epinephrine causes smooth muscles to relax. Specifically, epinephrine binds to beta-2-adrenergic receptors on bronchiole muscle cells. This allows the bronchioles to relax, which enables intensified respiration.
4. Adrenaline binds to beta-adrenergic receptors on heart muscle cells. This causes the contraction rate of the heart to increase. This ultimately leads to increased blood supply to the tissues in the body.

Which type of circulation explains the movement of blood from the heart to the lungs and back to the heart again?

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Pulmonary circulation is the type of circulation that explains the movement of blood from the heart to the lungs and back to the heart again.

Blood that does not carry oxygen originates from the heart and moves to the lungs where it is filled with oxygen. Oxygen filled blood from the lungs travels back to the heart where the oxygen is used up.

As your heart beats, it brings up blood through a system of blood vessels called the blood circulatory system, the vessels that are in your body are elastic tubes that carry blood to every part in your body. oh and the type of circulation is Arterial and these blood vessels carry blood away from your heart through the elastic tubes. The Arterial blood vessels helps the blood circulate through your body with an constant flow.....

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Select the correct answer from each drop-down menu.Carbon is found in all living organisms. The constant flow of carbon on Earth through organisms and the air is known as the carbon cycle. ________ absorb carbon from the atmosphere in the form of carbon dioxide. They use it for respiration and_________ Animals consume plants, transferring carbon along the food chain. Plants and animals respire and release carbon into air. When the animals and plants die, they are eaten by Carbon enters back into the atmosphere in the form of ______.