B. two
C. three
D. as many as you want
One independentvariables can be tested in a controlled experiment. The correct option is A.
A person, place, thing, or phenomenon that you are attempting to quantify in any way is simply referred to as a variable in research.
The best approach to distinguish between a dependent and independent variable is to look at what the words themselves reveal about the variable you're using.
Only one variable at a time should be tested in an experiment. This guarantees that the experimental result is definitely caused by a single, recognisable component.
A controlled experiment in a scientific study is a test that the researcher actively modifies such that only onevariable is examined at a time.
Thus, the correct option is A.
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hey there, i believe that your answer will be choice C!
sex-linked trait
incomplete dominance
polygenic inheritance
Answer:
i think its b
Explanation:
if im wrong im sorry :(
DNA is made from RNA, which is created from proteins.
B.
Proteins are made from RNA, which is created from DNA.
C.
RNA is made from DNA, which is created from proteins.
D.
Proteins are made from DNA, which is created from RNA.
O A. The mother feels the fetus move for the first time.
B. The fetus begins rhythmic breathing movements.
C. The fetus's hands and feet appear
D. The fetus begins to form teeth.
During the second trimester of a woman's pregnancy, the mother starts feeling the fetus's movements for the first time and the fetus's hands and feet start to appear. Therefore, the correct statements are option A and option C.
The second trimester period ranges from 13 weeks to 27 weeks and is considered to be the middle stage of pregnancy. During this period, significant growth and development can be seen in the developing fetus, and some organs get fully developed.
During the second trimester, any health issues associated with the fetus can also be detected. The second trimester is a very important stage of pregnancy where the mother and her fetus both experiences a significant change.
During the second trimester of pregnancy, the fetus's hands and feet begin to appear. However, the mother also starts feeling the movements of the fetus usually during the second trimester. However, the teeth fully form after birth.
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Answer:
a. the mother feels the fetus move for the first time
Explanation: