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Flura [38]
3 years ago
14

What is earth made up of???

Biology
1 answer:
Anna [14]3 years ago
4 0
Earth is made out of a lot of different materials inclluding silicon, iron, nickel, aluminum and other metals.  Of course, it's atmosphere is made out of gases including nitrogen oxygen CO2 and Carbon monoxide.
You might be interested in
Which organism gathers its energy directly from the sun?
matrenka [14]

Answer:

A rose plant

Explanation:

A rose plant gathers energy from the sun. It uses the sunlight in order to carry out photosynthesis. Plants need the sun's light to create their own energy.

5 0
3 years ago
Bulimia nervosa is characterized by __________, whereas anorexia nervosa is characterized by __________.
Alex_Xolod [135]

Answer:

Vomiting after eating,  eating very little.

Explanation:

There are no answer choices for me to choose from, but I hope that you will be able to choose your answer from the following information:

Bulimia nervosa is a psychological disorder in which individuals vomit food after ingestion in order to avoid weight gain, most of the time because they have either a fear gaining weight or a misconception of what their body looks like.

Anorexia nervosa is a psychological disorder in which individuals avoiding ingesting food or sometimes attempt not to eat anything at all because, similar to bulimia, they have either a fear gaining weight or a misconception of what their body looks like.

Hope this answer helps you! Please rate it and mark it as Brainliest! :)

Have a great day!

5 0
3 years ago
Read 2 more answers
How many jet streams are in the earths northern hemisphere
Natalija [7]
There are two jet streams, a subtropical and a polar-front jet stream.
6 0
3 years ago
Read 2 more answers
In a population, surrounded with dark gray rocks, there lived 2 types of beetles, a gray beetle and a white beetle. In the start
Svetlanka [38]

Directional selection favors one of the extreme phenotypes over the other one. <u>Option C is correct</u>. Natural selection is the evolutive force, and 0.40, 0.40, and 0.20 are the new genotypic frequencies.

<h3>What is directional selection?</h3>

Directional selection is one type of natural selection. Let us remember that natural selection is an evolutive force.

Directional selection increases the proportion of individuals with an extreme phenotypic trait.

There must be a selective pressure or environmental pressure acting on populations to lead the species to increase the number of individuals expressing that extreme phenotype.

This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.

In the exposed example,

  • two original phenotypes ⇒ gray and white
  • substrate color ⇒  dark gray rocks
  • environmental pressure ⇒ birds preying on beetles

- Grey beetles managed to camouflage with rocks since their gray color was similar.

- White beetles were exposed on the dark gray rocks, so they were easily seen by birds.

- Predation by birds was an environmental pressure that had a stronger influence on the white phenotype.

Natural selection favored gray-colored beetles, who could survive and reproduce.

Assuming a diallelic gene expressing complete dominance codes for beetles color, we can suggest that the frequency of one of the homozygous genotypes increased, while the other decreased to near cero. Heterozygous individuals kept the allele coding for the white phenotype.

Among the options, <u>C is the correct one</u>. Natural selection is the evolutive force, and 0.40, 0.40, and 0.20 are the new genotypic frequencies.

You can learn more about natural selection and  directional selection at

brainly.com/question/9830102

brainly.com/question/12226774

#SPJ1

7 0
2 years ago
Which one of the following accurately describe a characteristic of fungi
Alborosie
Fungi has a cell wall, no chlorophyll in the cells (unlike plants), is multicellular, and eukaryotic
6 0
3 years ago
Read 2 more answers
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