In a controlled experiment usually only one factor is changed, which is the:

1 answer:

5 0

The independent variable is the part of the experiment that the researcher makes changes or adjustments to. This allows for differences in the dependent variable, which is usually the result that the independent variable is considered to (in)directly work on.

You might be interested in

Fossils of Thrinaxodon, a species that lived during the Triassic period, have been found in both South Africa and Antarctica. Th

tekilochka [14]

Answer:

Option-

As many believe after doing an extensive form of research work of years that reptiles are the ancestors of the mammals that we see now. Which means that we mammals evolved from the pre-historic form of reptiles.

Explanation:

Fossils of Thrinaxodon, a species that lived during the Triassic period, have been found in both South Africa and Antarctica. Thrinaxodon had a reptile-like skeleton and laid eggs, but small depressions on the front of its skull suggest it had whiskers and, therefore, fur. Thrinaxodon may have been warm-blooded. The fossils of Thrinaxodon are consistent with the hypothesis that mammals evolved from the pre-historic reptiles.

7 0

3 years ago

How does the sexual life cycle of the human species introduce genetic variations?

kari74 [83]

Answer:

In humans, genetic variations are caused because humans reproduce by a sexual life cycle which is termed as meiosis. In such a life cycle, the offspring receives half the chromosomes from the mother and half from the father. Crossing over and random assortment of chromosomes are two phenomenons which occur during meiosis. Due to these two phenomenons, genetic variations are caused.

During crossing over, the exchange of DNA segments between the homologous chromosomes takes place which brings about the genetic variations.

5 0

3 years ago

Need help please!

Leya [2.2K]

Answer:

B. Liquid water flowed on its surface

7 0

3 years ago

Read 2 more answers

Radon is an indoor air pollutant that has been linked to ________.

Rashid [163]

It has been linked to lung cancer.
hope this helps!

4 0

3 years ago

How can Celera make a profit off of sequencing our DNA?

Verdich [7]

Answer:

The Invitrogen Collibri portfolio of library prep kits and accessories generate libraries more quickly, with less bias, in order to match the speed and capacity of Illumina instruments. Advantages available only from Invitrogen Collibri Library Prep Kits

8 0

3 years ago