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Wittaler [7]
3 years ago
12

Why is it important that scientists conduct multiple observations during an experiment?

Biology
2 answers:
kupik [55]3 years ago
5 0

Answer:

A) Data need to be reliable.

Explanation:

2020 exam!:)

professor190 [17]3 years ago
4 0

Answer:

to make sure the first answer was right. So, they do it over and over a couple times to make sure the first answer is correct by checking again.

Explanation:

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8090 [49]
A random sample is not biased 
6 0
4 years ago
Read 2 more answers
Based on the images, what other adaptations do these animals display?
kirill115 [55]

Answer:

Polar Bears

Polar bears have white fur which helps aid in camouflaging against the snow. They also have small rounded ears that act as a shield letting no water in to freeze ear drums and reduce heat loss.

Black Bears

Black bears absorb heat through their black skin. Their thick fur and fat act as an insulation and their large bodies reduce heat loss.

They both use their large claws and teeth to catch prey and provide for themselves

Explanation:

If you need any other examples of adaptions of bears let me know because there are a lot I just added the main ones!

6 0
4 years ago
If the ventral root of a spinal nerve were cut, what would be the result in the tissue or region that nerve supplies?
Ivan

Answer:

a. a complete loss of voluntary movement

Explanation:

Spinal nerves serve as the paths of communication between the spinal cord and specific regions of the body. Roots refer to the bundles of axons that serve to connect each spinal nerve to a segment of the spinal cord via smaller bundles of axons called rootlets. The ventral root also called the anterior root and the associated rootlets contain axons of motor neurons.

These motor neurons of ventral root conduct nerve impulses from the CNS to effector organs. Muscles and glands are the effector organs. As these effector organs receive motor information, voluntary movements are generated. If the ventral root of the spinal nerve were cut, the effector organs will not get the motor information and no voluntary movements will be generated.

8 0
3 years ago
Need Help ASAP!!
anzhelika [568]

Questions:

1. Supporting all stakeholders means that?

A. any solution benefits for all stakeholders equally .

B. the solution favors human needs over environmental.

C. one stakeholder is supported by the expense of the others .

D. all needs are taken into account and solutions are designed to consider them all .

2. Technology is not likely to change the field of marine science much in the future. (1 point)

A. True

B. False

3. The national oceanic and Atmospheric administration use to buoys to monitor (1 point)

A. ship traffic

B. weather patterns via satellite

C. movement of tectonic plates

D. water conditions around coral reefs

4. The first echo sounder was used in a German submarine. (1 point)

A. True

B. False

5. Why are marine oceanographers particularly concerned with coastal regions? (1 point)

A. Coastal regions are highly impacted by human activity.

B. Previous studies in marine science have largely ignored them.

C. They are the only areas that marine oceanographers can access.

D. By definition, marine oceanographers are only concerned with the coast.

6. Most colleges with strong marine biology departments are located in coastal regions. (1 point)

A. True

B. False

7. One of the biggest challenges in exploring polar regions is (1 point)

A. ice packs

B. hurricanes

C. polar bears and walruses

D. lack of latitude and longitude

8. The purpose of global regulation of the ocean is (1 point)

A. to protect and preserve the ocean

B. to deny dangerous countries access

C. to ban militaries from using the ocean

D. to minimize the role of commercial fishing

9. How did American captain William Anderson eliminate the problem of ice packs when exploring the arctic? (1 point)

A. He designed the ship to melt the ice .

B. He went under the ice packs with a submarine.

C. He developed a particularity narrow ship.

D. He went when temperatures were warmer .

10. By definition, an inorganic element is (1 point)

A. not alive

B. microscopic

C. in the ocean

D. immune to change

11. What does an echo sounder do? (1 point)

A. allows divers to better hear underwater

B. uses sound waves to map the ocean floor

C. documents sound at the deepest region of the ocean

D. eliminates all echos when divers are communicating underwater

12. There is one established method to solve all scientific problems. (1 point)

A. True

B. False

13. Regardless of the scientific question being asked, scientific research will include all of the following EXCEPT? (1 point)

A. use of the scientific method

B. a single approach in every situation

C. exploration of work by previous scientists

D. sharing results with the scientific community

14. Positive feedback in a system is (1 point)

A. words of praise

B. a benefit for the entire system

C. an interaction that benefits one element

D. an event that benefits one part while weakening another

15. What does the international ocean drilling program do? (1 point)

A. collects samples from the sea floor

B. advocates ending all drilling on the floor

C. determines international regulations for offshore drilling

D. searches the sea floor for the location of underground oil

Answers & Explanation

1. D. all needs are taken into account and solutions are designed to consider them all .

2. B. False

3. D. Water conditions around coral reefs

4. A. True

5. A. Coastal regions are highly impacted by human activity.

6. A. True

7. A. ice packs

8. A. to protect and preserve the ocean

9. B. He went under the ice packs with a submarine.

10. A. not alive

11. B. uses sound waves to map the ocean floor

12. B. False

13. B. a single approach in every situation

14. C. an interaction that benefits one element

15. A. collects samples from the sea floor

The final score is a 15/15 (100%)

7 0
3 years ago
Why is gwas used for complex disease studies?
kramer
A GWAS can be performed by actually genotyping as few as 300000 to 1million
4 0
3 years ago
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