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Yuliya22 [10]
2 years ago
13

Justin is planning his science fair project. He wants to measure how oxygen levels affect the rate of photosynthesis in plants.

Is this an example of a scientific investigation or an experiment? (5 points)
An experiment because it tests a cause and effect relationship
An experiment because it does not ask a testable question
An investigation because it uses only observations
An investigation because there is a control group
Health
1 answer:
deff fn [24]2 years ago
7 0

Answer:

The 3rd Option

Explanation:

Simple for this question, C: an investigation because it uses only observations.

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A nonnutritive compound in foods that may play a role in fighting chronic diseases is called fiber.
stepan [7]
I’m pretty sure it’s true

3 0
2 years ago
In humans, the ABO blood type is under control of autosomal multiple alleles. Red-green colorblindness is a recessive X-linked t
Fofino [41]

Answer:

1/8

Explanation:

Father: normal vision, type A

Mother: normal vision, type A

They can only produce a colourblind son if female is the carrier for it:

         XC      Xc

XC  XCXC  XCXc

Y     XCY    XcY

XcY son will be colorblind. Hence father has XCY genotype and mother has XCXc genotype for vision.

They can only produce type O son if both of them are heterozygous for type A:

    A    O

A  AA  AO

O  AO  OO

OO son will have type O blood. Hence both father and mother have AO genotype for blood type.

Probability of having a female child=1/2

Probability of having a normal vision female child = 1 since in the first punnett square it has been shown that all female children have normal vision ( half are carriers )

Probability of having type O child = 1/4

Probability of having a female child with normal vision and type O blood = 1/2 * 1 * 1/4 = 1/8

4 0
3 years ago
Are drugs that increase nerve activity <br> (A)Depressants <br> (B) narcotics <br> (C) stimulants
bagirrra123 [75]

Answer:

c

Explanation:

5 0
3 years ago
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The _________ was created in order to alert insurer home office underwriters of errors, omissions, or misrepresentations made on
belka [17]
The answer to your question would be b. MIB
4 0
3 years ago
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When a death occurs, members of a healthy family will finish the
BARSIC [14]

Answer:

True

Explanation:

They will finish their grieving process at the same time, no matter if they are a healthy family or not. It is a big effect of someone's life, losing someone, so they would finish the process at the same time.

I hope it helps! Have a great day!

Pan~

7 0
2 years ago
Read 2 more answers
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