The sex hormone testosterone ____

Why is it important that an expeirement include a control group

docker41 [41]

Without a control group there wouldn’t be any basis for knowing if a result is due to the variable being tested

7 0

3 years ago

Students use a microscope to look for structures present in four different cells. The students placed an X for each structure th

Thepotemich [5.8K]

Cell Y.

Answer: Option C.

Explanation:

Prokaryotic cells are the cells that do not possess a true nucleus. They do not even possess a membrane bound organelles. Organisms with in the domains bacteria and Archaea have prokaryotic cells. The other forms of life are the eukaryotic.

It is a unicellular organism. The word prokaryotic comes from a Greek word. The prokaryotic cells have a cell membrane or a plasma membrane which acts like a protective shield. Along with this, they also have a rigid cell wall which acts like further support and protection.

6 0

3 years ago

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What group of organic molecules is made up of a sequence of an amion group, a carboxyl group, a hydrogen atom and a side chain b

artcher [175]

Proteins is made up of a sequence of an amion group, a carboxyl group, a hydrogen atom and a side chain bonded to the central carbon atom.

Answer:A

3 0

3 years ago

In the currently accepted atomic model, an electron orbits the nucleus in a clear, defined path.

Alex777 [14]

FALSE

In the currently accepted atomic model, an electron orbits around the nucleus is NOT in a clear, defined path.

Explanation:

According to modern atomic models, like the Bohr theory, it is difficult to know the exact location and path of an electron around the nucleus. This is partly because the mere act of observing the electrons changes its position. This is because the electrons have negligible mass and therefore ‘hitting’ them with any form of radiation for ‘illumination’ changes its position, behavior, and properties. In addition, the movement of electrons is very rapid such that by the time one observes the instantaneous location of an electron, if it was possible, it will have changed its position.

Therefore modern theories, such as VSPER, model atoms based on properties of where an electron will highly likely be found. This is how the shells and subshells of electrons (s, p, d, f) are modeled.

Learn More:

For more on modern theories of the atom check out;

brainly.com/question/11363941

brainly.com/question/7622425

brainly.com/question/1698091

brainly.com/question/2796914

#LearnWithBrainly

6 0

4 years ago

What is a punett square???

KATRIN_1 [288]

Answer:

The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach in 1905. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.

hope it helps 

ur intro ✌✌

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2 years ago

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The sex hormone testosterone _____.