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balandron [24]
3 years ago
15

How many factors should a well-designed experiment test at one time?

Biology
1 answer:
LuckyWell [14K]3 years ago
3 0
Only 1- the experiment can not show a cause and effect relationship if there are more than one factors contributing to the outcome.
You might be interested in
9. Which of the following accurately describes the process of translation?
Zielflug [23.3K]

The process of translation involves each codon calls for a specific nucleotide. The answer is letter A. during translation, an mRNA sequence is read using the genetic code to be translated into the 20-letter code of amino acids.

8 0
3 years ago
Experiments on the positive phototropic response of plants indicate that ______. A. light destroys auxin B. auxin moves down the
artcher [175]

The answer is auxin can move to the shady side of the stem.

Phototropism is a reaction to environmental factors. It is a plant's response to sunlight in the form of movement. In plants, phototropism is very prevalent. In actuality, it is necessary for plant growth. Other plant movements also occur in response to touch, water, gravity, and other factors. Phototropism was discovered due to well-known experiments by Charles Darwin and Boysen Jensen.

There are two types of phototropism:

  • Positive phototropism
  • Negative phototropism.

Learn more about auxin here:-

brainly.com/question/16939476?referrer=searchResults

#SPJ4

8 0
1 year ago
The proportions of the bases are consistent within a species; however they do vary between species. Using the base-pair rules, c
Snezhnost [94]

Answer:

The correct answer would be:

                  A         G          C         T

Human:   31          19          19       31

Cow:         28         22      22         28

Salmon:     29       21       21         29

Wheat        27      23        23        27

Yeast         31         19       19         31

Explanation:

According to the rule of Chargaff which states or explains the amount of the A, T, G, and C bases in the DNA molecule. It says that the DNA of any organism should have a pyrimidine and purine ratio of 1:1. This means the amount of A would be equal to T and the amount G should be equal to the amount of C.

It also says that the amount of a and G would be equal to the amount of C and T. So on the base of this we can find the missing value in the table:

                    A         G          C         T

Human:   31          19          19       31   (A= T and G=C)

Cow:         28         22      22         28  (A= T and G=C)

Salmon:     29       21       21         29   (A= T and G=C)

Wheat        27      23        23        27 (100 - A+T = G+C)

Yeast         31         19       19         31 (A= T and G=C)

5 0
3 years ago
Which process produces oxygen that is released into the atmosphere? *a. Respirationb. Excretionc. locomotiond. photosynthesisi d
Harman [31]

- Respiration is the process in which animals and plants take oxygen from the atmosphere.

-Excretion is the process in which living beings get rid of waste products.

-Locomotion involves any form of movement made by living beings.

-Photosynthesis is the process in which plants use water, sunlight, and carbon dioxide to create oxygen and energy.

The correct answer is Photosynthesis

6 0
1 year ago
How many parts does the plant cell has
Lilit [14]
I’m thinking 8..
Hope this helps, if you haven’t gotten on google yet haha
4 0
3 years ago
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