BIOLOGY MIDDLE SCHOOL

Where do growers harvest cells when cloning orchids?

Answers

Answer 1
Answer: by harvesting cells from the orchids root tips that will allow you to clone the plant

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Dr. Wexler supports a scientific theory because his best friend proposed it. He is guilty of____.A. Scientific fraud
B. An honest mistake
C. Bias
D. Noncompliance

Answers

Answer: C Bias

Explanation:
Bias because he is in favor of the scientific theory in an unfair way. Which would be just because his best friend proposed it.

other than earth, is also known to have magnetic pole reversal? A:venus B:Mars C:Earths moon D: The Sun

Answers

The sun have magnetic pole reversal other than earth.

What is magnetic pole reversal?

A shift in the magnetic field of the earth to the opposite polarity is known as a magnetic polarity reversal. Throughout the course of geologic time, this has happened sporadically.

What happens during a magnetic pole reversal?

The magnetic field decreases but does not vanish entirely after a pole reversal. Though there may be some particulate radiation that reaches Earth's surface, the magnetosphere and the atmosphere continue to shield the planet from cosmic rays and charged solar particles.

So, The correct option is D.

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Answer:

the sun

Explanation:

10. What happens to atmospheric pressure as a person rises in altitude?O A. It decreases
O B. It's unaffected by changes in altitude,
O C. It increases
OD. It changes based on the time of year.
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Answers

Answer: A: Decreases

Explanation: The pressure is the ratio of the weight of the air to unit area. So, as the height increases, the pressure decreases.
The answer is a as it decreases when someone rises in altitude

For which amino acid is AAA a codon

Answers

Answer:

proline

Explanation:

coded for the polypeptide poly-proline. Therefore, the codon AAA specified the amino acid lysine, and the codon CCC specified the amino acid proline.

Cotton is a plant used to make clothing.Cotton would fit best into which of the following categories?A) nonrenewable resources
B) renewable resources
C) inexhaustible resources
D) exhaustible resources

Answers

B) A renewable resource
The answer should be (B) Renewable resources ; as we can renew or regenerate them over time.

The oldest fossil forms of life are most similar toa. animals
b. modern bacteria
c. archaebacteria
d. fungi

Answers

Answer:

c. Archaebacteria are the oldest fossil forms

Explanation:

According to the Six Kingdom Classification of Living Organisms, Archaebacteria includes the earliest organisms to have appeared on the earth's surface living under harshest of conditions. These were unicellular organisms that used chemical energy to synthesize life sustaining molecules(chemoheterotrophs).

As the temperature, pressure and environment became more conducive to live slowly they evolved into modern bacteria, and subsequently higher-ordered multicellular organisms. Fungi, Plant and Animals later evolved as the organization became more and more complex.

Therefore in chronological order the oldest fossils are Archaebacteria>modern bacteria>fungi>animals

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The answer is C

Archaebacteria were the first forms of life because they can survive in very harsh conditions like extreme heat and cold
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