BIOLOGY HIGH SCHOOL

Which of the following is an organic molecule?

Answers

Answer 1
Answer:

H2O NaCl FeO CH4

The answer is CH4
Answer 2
Answer: what are the options

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Which of the following adaptations does not protect tundra organisms from heat loss?a. thick furb. retention of dead leavesc. dense haird. production of chemicals to ward off insects

Millions of years ago, the continents existed together in one single supercontinent called.

Answers

it is called Pangaea.
the supercontinent is called pangea

Because fermentation takes place in the absence of oxygen it is said to be

Answers

Anaerobic is the answer

A 38-kilogram child roller skates on a circular track with a radius of 24 m. Her velocity is 6.0 m/s. What centripetal force does she experience?-0.16 N
-0.38 N
-57 N
-580 N

Answers

The answer is.57N.


Centripetal force (F) is a force that makes a body move around a circular curve. The unit of force is N (N = kg * m/s²).

It can be represented as:

F = (m* v^(2) )/(r)


where:
m - mass
v - velocity
r - radius of the curve

We have:
m = 38 kg
v = 6 m/s
r = 24 m

We need centripetal force:
N = ?


If:

F = (m* v^(2) )/(r)

Then:

F = (38 kg* (6 m/s)^(2) )/(24 m)

F = (38* 36 )/(24)kg*m/s^(2)

F = 57N


Therefore, centripetal force child experiences during skating on 

a circular track is 57 N.

In order to solve the problem presented above you will simply need to use the formula shown below. Please see attachment. Now all we have to do is simply replace the variables with the information that the problem gives us. If we do that we will get the following:


F = m*v²/r

F = 38*6²/r

F = 38*36/24

F = 57 Newtons


I hope it helps, Regards.

What law best explains why we would expect 75% of the offspring to have large teeth

Answers

Correct answer: Law of dominance

According to Mendel's law of dominance when a cross is done among the parents that are true for contrasting traits, then in such a situation only one of the trait will be shown in the next generation, and the other will be hidden. It will appear in the trait that is dominant.

The alleles that are expressed in the population are called as dominant while the trait that does not express is called a recessive trait.

Answer:

Law of dominance:)

The length of time it takes for a planet to revolve around the sun is equivalent to which of the following? A.
the length of its year


B.
the length of its day


C.
the length of its month


D.
the length of its decade

Answers

i believe the answer is A

Answer:

the answer is A 100%

Explanation:

An object in geometry with no width length or height is a(n)A. Angle
B. line
C. Ray
D. Point

Answers

Answer: The correct answer is D) Point.

Point is represented by a dot, which has no width, length or height.

On the other hand, angle is a figure formed with the help of two rays, which share a common end point.

Line is a segment, which consists of two end points whereas ray is a part of line having only one end point. Therefore, angle, line, and ray all three have width or length.

Thus, the correct option is Point.

An object in geometry that has to no width, length, or height is called a point. The correct answer is D. 
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