1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Angelina_Jolie [31]
3 years ago
6

A student wants to answer the question "Does adding calcium powder to soil make pea plants grow faster?" She adds calcium powder

to the soil of 12 plants and does not add it to the soil of a second group of 12 plants. She measures the growth of all of the plants in each group for a month. Which statement best summarizes the factors that need to be controlled in this experiment?
A) All plants should be the same age and health and be given equal amounts of water and sunlight.
B) All plants should be placed in separate, equal-sized pots on the same table, where they receive the same amount of sunlight.
C) All plants should be watered in the morning at the same time each day, and given the same amount of soil and sunlight.
D) All plants should be the same health and be given equal amounts of water, calcium, and sunlight.
Biology
1 answer:
attashe74 [19]3 years ago
8 0

Answer: the correct answer is A) All plants should be the same age and health and be given equal amounts of water and sunlight.

You might be interested in
Which of the following statements about an energy pyramid is NOT correct?
timurjin [86]

Answer:

The answer that would NOT be correct is the last one , (Ecosystems that have more energy at higher trophic levels than at lower trophic levels. )

4 0
2 years ago
Aye yo Bueno <br> its layhej5 were u at
emmasim [6.3K]
No where are you at young man
8 0
2 years ago
Please Answer These Math Questions LOT OF QUESTIONS LOTS OF POINTS (Questions in picture)
ryzh [129]

Answer:

this is not science questions it is of maths

4 0
2 years ago
A chemical reaction that releases energy is called ___________ and a chemical reaction that absorbs energy is called ___________
coldgirl [10]

Answer:

a exothermic;endothermic

Explanation:

learned that in sience class yesterday

3 0
2 years ago
Read 2 more answers
"Which statement is the best interpretation of the material presented in the chart?
Neporo4naja [7]
After reading the contents of the table shown in the attached picture, I am pretty sure that the <span>statement which is the best interpretation of the material presented in the chart is being shown in the first option:  </span><span>Scientific explanations are built by combining evidence that can be observed with what people already know. I choose this option as I recognized sort of 'cause&effect' information. In the first one you can see some well-known facts and in the other picture you can see accurate information gathered by scientists due to those facts.

Hope that helps!</span>
5 0
3 years ago
Other questions:
  • Which of the following is a testable hypothesis?
    11·2 answers
  • What is mRNA please help
    9·2 answers
  • 1.solve for p
    13·2 answers
  • Which enzyme is used specifically for RNA transcription from dna in
    7·1 answer
  • Controlling voluntary skeletal muscles is a function of the __________ nervous system.
    7·1 answer
  • Potiential energy is based on an objects
    12·1 answer
  • 3.
    10·1 answer
  • FRAMESHIFT mutation. Explain what this means and how it affects the<br> protein
    8·1 answer
  • If something doesn't fulfill all of the
    10·2 answers
  • Select the statement below that is true concerning the Bacteria
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!