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
Alona [7]
3 years ago
11

A scientist wanted to study the effect of a drug on the blood pressure of rats. She set up an experiment in which the experiment

al group consisted of rats that were injected with a salt solution containing the drug. What should the control group have consisted of?
Biology
1 answer:
Georgia [21]3 years ago
3 0
 <span>The control group would not receive any medication or they would be given the salt solution without any drugs with it (basically a placebo). 

A dependent variable is a variable dependent on another variable: the independent variable. In simple terms, the independent variable is said to cause an apparent change in, or simply affect, the dependent variable. 

The variables you have are what the rats are feed (their diet), number in cage, size of the cage (things such as a smaller care with more within it should cause undue stress), what they are exposed to within their environment. Even things sun as amount of light within the room, the temperature of the room, etc. </span>
You might be interested in
"A research group is looking for a way to use spider silk, valued for its high tensile strength, to make extremely strong ropes,
tatuchka [14]

Answer:

The correct answer is "Transgenics".

Explanation:

The missing options of this question are:

A. Artificial selection

B. Transgenics

C. Bioreaction

D. Recombination

The correct answer is option B. "Transgenics"

Transgenics is a term used to describe the artificial insertion of one or more DNA sequences to an organism that would normally not have it. In this example, the term transgenics applies to the cows that serve as hosts for the production of the spider silk. The process transgenics is what gives the name to terms such as "transgenic food", "transgenic plants" or "transgenic animals".

7 0
3 years ago
Hurry please I am on a quiz and hello
kirza4 [7]

Explanation:

vascular because it has spores

vascular because it has true roots

nonvascular because it has spores

nonvascular because it has true roots

5 0
2 years ago
Which of the following groups of organs provide secretions that nourish and protect sperm cells?
Hitman42 [59]

Answer: Seminal vesicles, Cowper's glands, and the prostate gland

Explanation:

Seminal vesicles make a sugary secretion that nourishes the sperm cells. Cowper's glands and the prostate work together to create secretions that protect the cells.

8 0
2 years ago
Define cell transport
katrin [286]

Cell transport is movement of materials across cell membranes. Cell transport includes passive and active transport. Passive transport does not require energy whereas active transport requires energy to proceed. Passive transport proceeds through diffusion, facilitated diffusion and osmosis. The purpose of the transport proteins is to protect the cell's internal environment and to keep its balance of salts, nutrients, and proteins within a range that keeps the cell and the organism alive.

3 0
3 years ago
How Long do cats live
Lena [83]

Answer:

2 to 16 yrs

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • { Please Answer Quickly! 50 Points! }
    9·1 answer
  • Humans have 46 chromosomes in the diploid cell. How many chromosomes would be found in each gamete and in a zygote resulting fro
    5·2 answers
  • summary of 2 main parts of photosynthesis (light-dependent reactions and light-independent reactions/Calvin Cycle). Be sure to e
    11·1 answer
  • A cell membrane is relatively impermeable to substances that are
    6·1 answer
  • Which phrase describes a homogeneous catalyst?
    10·1 answer
  • Which of the following describes a function of the endoplasmic reticulum within a cell
    15·2 answers
  • LOOK AT PIC!!!!!!!!!!!!!
    10·2 answers
  • How do coral reefs grow?
    9·2 answers
  • The moon itself doesn’t emit any _____ like the sun.
    11·1 answer
  • Why might a nymph have a diet more like that of an adult than does a larva? SAMPLE RESPONSE WHOEVER ANSWERS CORRECTLY GETS BLAIN
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!