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nika2105 [10]
3 years ago
8

Natural selection is the primary mechanism of

Biology
1 answer:
Colt1911 [192]3 years ago
6 0

the Answer is :

C.  

evolution

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For larger distances such as the distance between objects in the far reaches of our galaxy astronomers ensure in units of?
Scorpion4ik [409]

Answer:

Lightyears

Explanation:

When dealing with very large interstellar distances, astronomers do not use the regular miles, kilometers, or meters we are used to. This is because they are just too small to be used as a metric when measuring such large distances. As a matter of fact, the earthly number system will quickly be exhausted when trying to measure some of these interstellar distances.

Instead, astronomers make use of Lightyears. Lightyears are defined by the distance traveled by an object moving at the speed of light if it was moving constantly at that speed for one year.

This can properly be used to estimate interstellar distances. since its value is very large. 1 lightyear = 9,461,000,000,000 Km

If we say that our closest star is 9 lightyears away, we are saying that it will take an object moving at the speed of light 9 years to travel from that star to our planet.

7 0
3 years ago
How many days are in between moon phases, and if there was a new moon on March 17, when will the next new moon be?
Alexxx [7]

Answer:

It takes 27 days, 7 hours, and 43 minutes for our Moon to complete one full orbit around Earth. This is called the sidereal month, and is measured by our Moon's position relative to distant “fixed” stars. However, it takes our Moon about 29.5 days to complete one cycle of phases (from new Moon to new Moon).

The 27th, I believe

Explanation:

6 0
3 years ago
When is being genetically identical to the parent an advantage for organisms? Question options: When many offspring are needed i
nevsk [136]

Asexual reproduction is a form of reproduction in which the number of chromosomes or the fusion of gametes is not altered.

Being genetically identical to the parent is advantageous for organisms when the environment changes fast, and reproduction is needed.

A gamete (a reproductive cell with one set of chromosomes, like an egg or sperm) combines with another to form a zygote, eventually developing into an organism of cells with two sets of chromosomes. Sexual reproduction is a type of reproduction that involves this complex life cycle (diploid).

The advantages of sexual reproduction are numerous. Several instances include:

more genetic variation

immunity against contagious diseases

fewer genetic diseases

Evolutionary fitness has increased

Learn more about Sexual reproduction here:
brainly.com/question/815744

#SPJ4

6 0
1 year ago
Which statement summarizes the law of independent assortmnt?
Sedbober [7]

The Principle of Independent Assortment describes how different genes independently separate from one another when reproductive cells develop. Independent assortment of genes and their corresponding traits was first observed by Gregor Mendel in 1865 during his studies of genetics in pea plants.


3 0
3 years ago
Read the scenarios below. For each of the scenarios, identify the following (you should identify the 3 for EACH of the scenarios
Kazeer [188]

The following were required;

  • Dependent Variable - productivity of workers
  • Independent Variable -  drinking the special juice
  • Control group -  Group B
<h3>What is a variable?</h3>

A variable is a measurable quantity that changes in an experiment. The variable that is manipulated in the experiment is called the independent variable.

Now these are the variables that are involved in this experiment:

  • Dependent Variable - productivity of workers
  • Independent Variable -  drinking the special juice
  • Control group -  Group B

Learn more about experiment variable:brainly.com/question/16550062?

#SPJ1

4 0
2 years ago
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