BIOLOGY HIGH SCHOOL

Which of the following show an element of the sample space for shooting 2 free throws in basketball? (X = Make, O = Miss)A. XX
B. OO
C. XO
D. OX

Answers

Answer 1
Answer: Each choice show an element of the sample space for shooting 2 free throws in basketball.

A. XX - the 2 free throws made the basket
B. OO - the 2 free throws missed the basket
C. XO - 1st free throw made the basket, 2nd free throw missed it.
D. OX - 1st free throw missed the basket, 2nd free throw made it.

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The body system responsible for the exchange of gases between the body and environment is the

Answers

Answer:

The Respiratory system

Explanation:

  • The respiratory system is composed of a group of organs (lungs, trachea, larynx, the nose, etc.)
  • The respiratory system has various functions in the body such as breathing, vibrating the vocal cords to produce and gaseous exchange.
  • When you breathe, air is taken up through the nose and mouth, to the pharynx (throat), through the larynx (where this voicebox is) and into the alveoli of the lungs where gas exchange takes place.
  • Gaseous exchange is where oxygen (from air) is taken up from the lungs into the bloodstream and carbon dioxide (a waste product in the body) is eliminated from the blood to the outside environent.

It is the respiratory system that allows for the exchange of gasses. 

Why might a scientist repeat an experiment if he/she didn't make a mistake in the first one? An experiment should be repeated toA) increase income for increased work.
B) prove how good of a scientist you are.
C) double check your results.
D) show how smart you are.

Answers

Experiments are often replicated or repeated even when no obvious mistake was visible. This is to establish how variable results are. Statistically, multiple runs are used to determine the variance or standard deviation around the average value. The best answer for this is choice C, to double check results.

Answer:

C

Explanation:

Which of these is an example of structural protein in plants?

Answers

The answer is Lignin
the answer for this question is Lignin

Fascia, the type of tissue that "invests" body structures, is _______ tissue.a. nerve
b. connective
c. pleural
d. muscle

Answers

Fascia, the type of tissue that  "invests" the body structure, is the Connective tissue

Evolution of the spindle was of central importance to eukaryotic cells. what role is played by the spindle during mitosis?

Answers

The role played by the spindle during mitosis is to bring about an orderly distribution of chromosomes to the daughter cell. 
The spindle fibers form a protein structure that divides the genetic material in a cell. They are necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: in both mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle. 
Thespindle fibers are important in theseparation of sister chromatids of the chromosomes, at the centromere. This occurs during metaphase toanaphase. The spindle is composed ofmicrotubules. They extend from the poles of the cell and attach to thekinetochore (at the centromere) of the chromosomes and start pulling apart

In a community, there are five brown squirrels, five grey squirrels, and ten white squirrels. what is the relative abundance of brown squirrels?A 5%
B 20%
C 25%
D 50%

Answers

i think the answer is C.25%
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In which of the following ways might the effects of a mutation in a skin cell be different from those of a mutation in a sperm cell?Sperm cell mutations are more likely to get corrected since meiosis has two phases, while skin cell mutations have only the single phase of mitosis in which to be corrected. A mutated sperm cell will always be destroyed during meiosis before it leaves the testes, while skin mutations remain within the skin. There is little chance that a sperm mutation will affect the testes, while skin mutations almost always develop into cancer. The mutation in the sperm cell could be passed on to offspring, while the skin cell mutation could only affect the individual.
A man is going to dig a well on his farm. The BEST place for the man to dig is slightly under theA) spring zone. B) water table. C) zone of aeration. D) impermeable layer.It is not spring zone