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
scZoUnD [109]
3 years ago
15

An experiment was performed to determine the health effects of different amounts of second-hand smoke on one-year-old hamsters.

What is the Independent Variable of the experiment?
Biology
1 answer:
galina1969 [7]3 years ago
7 0

Answer:

Independent variable: different amounts of second-hand smoke

Explanation:

The independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response.

In this question, a test is being carried out to determine the health effects of different amounts of second-hand smoke on one-year-old hamsters. Based on this, the independent/manipulated variable is the DIFFERENT AMOUNTS OF SECOND-HAND SMOKE because it is the variable being changed.

You might be interested in
Beginning with NADH, track the flow of electrons through the ETC. A. Complex I, Complex II, Complex III, Complex IV B. Complex I
Vilka [71]

Answer:

D. Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen.

Explanation:

5 0
3 years ago
BRAINLIEST 20 POINTS ANSWER THESE QUESTIONS
yarga [219]
1. An underdeveloped DNA molecule would result in mutations. On the genetic level, this could mean entire traits are deleted or that an early stop occurs in transcription, which could cut off parts of instructions.

2. Genetic code is the nucleotide sequence of a gene while the gene expression is how these sequences are used to make functioning amino acids and proteins to create DNA.

3. In each cell itself there are roughly 42 million proteins.
4 0
3 years ago
Why is an understanding of cells essential for making informed decisions about your health
kvv77 [185]
Cell is our microscopic structure. We have Trillions of cells in our body, which plays very important roll. Our every tissue, organ, organ system, our whole body has composed of cells. In order to make a nice and informed decision for our health, we must need to understand our body at cellular level

Hope this helps!
8 0
2 years ago
Evidence suggests that first, ____________ were acquired when an aerobic bacterium was engulfed by larger cells and became mutua
leonid [27]

Answer:

1. Mitochondria

2. Chloroplast

3. the formation of eukaryotic cells

4. DNA

Explanation:

The theory of endosymbiosis was proposed by the Lynn Margulis in 1967 which suggested that the eukaryotic organelles like the mitochondria and chloroplast evolved when another prokaryotic cell engulfed the prokaryotic bacteria.

The mitochondria were formed when the chemosynthetic bacteria were engulfed by the bacteria and the engulfed bacteria formed a symbiotic relationship. Similarly, the chloroplast was originated in the same way when the photosynthetic bacteria were engulfed by another prokaryote.

The evidence which supports their ar:

1. The same size of the organelles to the bacteria

2. The presence of the circular DNA of the organelles like bacteria  

3. The similarity in the 30s and 70s ribosomal subunits.

7 0
2 years ago
Read 2 more answers
Picture a person standing with a drawn bow and arrow. He is aiming it at a bull's eye target. What type of energy is being descr
Kazeer [188]
This is potential energy because while he was aiming at a bull's eye target, he is storing energy
7 0
3 years ago
Read 2 more answers
Other questions:
  • Luminous objects such as flashlights emit light that we can see. How do we see an object that isn’t luminous?
    11·2 answers
  • Is animal cruelty the reason animals are going extinct
    14·2 answers
  • Which of the following gives rise to the skin cells?
    15·1 answer
  • A therapist indicates that a client no longer has to record his daily activities if he can maintain a sober lifestyle. This is a
    8·2 answers
  • I need help with this question
    10·1 answer
  • Which is not involved in non specific defense mechanism
    8·1 answer
  • What is the anatomy of a flower?
    9·1 answer
  • Which phrase describes short-term environmental changes?
    10·2 answers
  • PLEASE HELP ME I'M BEING TIMED I WILL DOUBLE THE POINT
    10·1 answer
  • Earth retains water because
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!