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
spayn [35]
3 years ago
6

A student states that exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time. An

experiment is carried out to test this hypothesis. One group of ten students sits quietly before squeezing a clothespin as many times as possible during a one-minute interval. A second group of ten students does 25 jumping jacks before squeezing a clothespin as many times as possible during a one-minute interval. What is the independent variable?
Biology
1 answer:
Zarrin [17]3 years ago
4 0

Answer:

EXERCISE

Explanation:

In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable outcome.

In this case, an experiment is carried out to test the hypothesis that "exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time". The experiment contained two groups (one group sits quietly before squeezing a clothespin as many times as possible and the other does 25 JUMPING JACKS before squeezing a clothespin as many times as possible).

The independent variable is the EXERCISE (jumping jacks) that was changed for each group in the experiment.

You might be interested in
the endoplasmic reticulum (er) serves as a the endoplasmic reticulum (er) serves as a protein shuffle transpiration area transpo
lutik1710 [3]

Endoplasmic reticulum serves as transpiration area. The correct option is B.

<h3>What is endoplasmic reticulum?</h3>

The endoplasmic reticulum (ER) is a large, dynamic structure in the cell that performs numerous functions such as calcium storage, protein synthesis, and lipid metabolism.

The ER's various functions are carried out by distinct domains, which include tubules, sheets, and the nuclear envelope.

The endoplasmic reticulum can be smooth or rough, and its function is generally to produce proteins that allow the rest of the cell to function.

Ribosomes, which are small, round organelles that make proteins, are found in the rough endoplasmic reticulum.

Thus, the correct option is B.

For more details regarding endoplasmic reticulum, visit:

brainly.com/question/13118914

#SPJ4

3 0
1 year ago
Rna in cells differs from dna in that ___________________. select one:
irinina [24]
Hello! 

RNA in cells differs from DNA in that it is single-stranded and can fold up into a variety of structures.

RNA is the abbreviation for RiboNucleic Acid. It is a biological molecule that fulfills an important role by copying the information stored in the DNA (DeoxyriboNucleic Acid) and transporting it to the different proteins by folding into different shapes. Its name come from a Ribose molecule that is present in this single-stranded molecule.  

Viruses don't have DNA, only RNA. They only replicate in the host's cells by copying their own RNA information. 

Have a nice day!
3 0
3 years ago
The mosses and ferns both require water to enable the sperm to travel to the egg and fertilize it. Does this indicate that the f
viktelen [127]
In a way yes but in a way no hope i answerd your question


3 0
3 years ago
Darwin observed fossils of huge animals such as glyptodon why were these fossils of interest to him
Finger [1]
I believe its is because the fossils of these animals looked like living species and they had a connection to the modern. A fossil is any preserved evidence of life from a past geological age, such as the impressions and remains of organisms embedded in stratified rocks. Fossils are created when organisms die, are in cased in dirt and rock, and are slowly replaced by minerals over time.
8 0
3 years ago
What is a enzyme and how does it work
ahrayia [7]
Are macromolecular biological catalysts. It accelerate, or catalyze, chemical reactions.
4 0
3 years ago
Other questions:
  • Name and describe the three distinct perspectives from which a human act can be evaluated.
    14·1 answer
  • What kind of fertilization do reptiles utilize? a. internal. b. external. c. partly internal and partly external. d. none of the
    15·1 answer
  • Where do spores come from?
    15·1 answer
  • Describe what all living things must have for the next generation to be created. It is NOT
    6·1 answer
  • Which type of point mutations can cause the MOST change in the amino acids?
    9·1 answer
  • The diagram shows the process used in gene therapy.
    13·2 answers
  • The endosymbiotic theory states that the mitochondria of eukaryotes are the evolutionary result of a Proto-eukaryotic cell engul
    6·1 answer
  • Help please, first answer gets brainliest.
    12·2 answers
  • Describing How Traits Are Inherited
    15·1 answer
  • ¿Cuales son las funciones vitales de la célula?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!