BIOLOGY HIGH SCHOOL

How do predators affect an ecosystem

Answers

Answer 1
Answer:
They may affect the population of certain animals, but it is all part of the food chain.
Answer 2
Answer: They affect the ecosystem because it makes it imbalance.

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MIDDLE SCHOOL

When large stars die,
heavy elements are
released. Explain why.

Answers

When the core runs out of hydrogen, these stars fuse helium into carbon just like the sun. However, after the helium is gone, their mass is enough to fuse carbon into heavier elements such as oxygen, neon, silicon, magnesium, sulfur and iron.
MIDDLE SCHOOL

Why would damaged kidneys affect your health?

Answers

Damage to your kidneys can cause wastes to build up in your body and lead to other health problems like heart disease , anemia,and bone disease. Also you can die without your kidneys
HIGH SCHOOL

World class speed skaters can skate a 3,000-m course in about 4 minutes. What is their average speed for this course. A. 12.5m/s
B. 1.33m/s
C. 13.3m/s
D. 1.25m/s

Answers

A. 12.5 m/s.

The average speed is defined as the relationship between the displacement made by a body and the total time it took to perform it.

The formula that will allow you to calculate the average speed is:

v = d/t, where d is the traveled distance and t the time it took to travel the distance.

We hace to convert 4 minutes to second:

(60 s/1 min)*(4 min) = 240 s

So, the average speed is:

v = 3000 m/240 s

v = 12.5 m/s  

Answer:

The answer is A

Explanation:

MIDDLE SCHOOL

What is the definition of ETS reactions

Answers

The stepwise transfer of electrons from one carrier molecule, as aflavoprotein or a cytochrome, to another along the respiratory chainand ultimately to oxygen during the aerobic production of ATP.
MIDDLE SCHOOL

Some technologies have a number of negative effects. Which is a negative outcome of the technology of vertical farming? A.Decreased costs

B.Increased food supply

C.Potential unemployment

D.More jobs

Answers

Potential unemployment because that would mean there would be people not getting money + not sErving their part in the community

The answer is C. Potential Unemployment

MIDDLE SCHOOL

What does the theory of evolution tell us about living things?

Answers

Answer:

living things adapt over time/survival of the fittest

Explanation:

HIGH SCHOOL

True or False— The daughter cells produced during mitosis have the exact same number of chromosomes as the parent cell.

Answers

The answer to this problem is True!

The right answer is true
HIGH SCHOOL

Genetic exchange between 2 homologous chromosomes is called ____

Answers

Genetic exchange between two homologous chromosomes is called cross over
HIGH SCHOOL

Fats are broken into saturated fats and unsaturated fats. Which of these explains the difference between saturated and unsaturated fats? A) Saturated fats have no hydrogen in the molecule. B) Saturated fats have more carbon atoms than unsaturated fats. C) Saturated fats have only single bonds on all the carbon atoms. D) Saturated fats have only double and triple bonds on the carbon atoms. Submit Hint Matter and Energy Transformations (SC.912.L.18.1) Macromolecules Of Life ID: 82481

Answers

Answer:

C) Saturated fats have only single bonds on all the carbon atoms.

Explanation:

Fats can be divided into two groups, saturated and unsaturated. Saturated fats have only single bonds and thus are "saturated" with hydrogen atoms. Unsaturated fats have at least one double bond in their structure. If they have just one double bond, they are called as monounsaturated fatty acids (MUFA), if they have more than one double bond they are called as polyunsaturated fatty acids (PUFA).

Unsaturated fats are healthier compared to saturated fats. Their calorific value is low and they also lower the bad LDL cholesterol in body. However they are more vulnerable to rancidity and are usually liquid at room temperature so saturated fats are preferred to make processed food.

The answer to your question is C. ) because saturated fats only have single bonds on all the carbon molecules


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