1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fudgin [204]
3 years ago
11

Use the principle of original horizontality to identify the two rocks that are nearly the same age.

Biology
1 answer:
Digiron [165]3 years ago
4 0

The correct answer is - C and D.

The principle of original horizontality means that the rock layers have been order by age, with the layers at the top being the youngest, while the layers at the bottom being the oldest.

In this picture it is little hard to tell which rocks belong to the same layer from first look because there are multiple twists and turns, an uneven surface, caused by pressure on the crust.

By carefully examining the image though, we can trace the layers more properly and see which ones are younger, which older, and which have the same relative age. In this case, we can see that the markings C and D are actually on the same layer of rocks, thus being a good indication that they have the same relative age.

You might be interested in
Grass -> Grasshopper-> Mouse -> Hawk
mixer [17]

Answer:

A

Explanation:

5 0
3 years ago
Read 2 more answers
In a tropical forest some leaves are dark green and some are light green. In a population of caterpillars, homozygous dominant d
Sedbober [7]

Answer:

This is an example of "Disruptive selection".

Explanation:

<em>Disruptive selection</em> occurs when <em>selective pressure</em> <em>favor homozygous</em>. In equilibrium, <em>the two alleles might be present or one of them might be lost</em>. If an environment has two extremes, then in these environments, both alleles are presented in homozygous.  

The disruptive selection causes an <em>increase</em> in the two types of <em>extreme phenotypes over the intermediate forms</em>. Limits between one extreme and the other are frequently very sharped. Individuals belonging to one phenotype can not live in the same area as individuals belonging to the other phenotype, due to the traits differences between them, competition, or predation.

Populations show two favored extreme phenotypes and a few individuals in the middle. Individuals who survive best are the ones who have traits on the <u>extremes forms</u>.  Individuals in <u>the middle</u> are not successful at survival or reproduction.

<em>Color</em> is very important when it comes to <em>camouflage</em>. Dark green caterpillars that live in dark foliage and light green caterpillars that live in light foliage can <em>hide from predators</em> more effectively and will live the longest. Intermediate colored green caterpillars that don't camouflage or blend into either will be eaten more quickly.

6 0
3 years ago
Read 2 more answers
Describe how phosphorus moves through the biotic and abiotic parts of an ecosystem
Daniel [21]
Phosphorus is a basic supplement for plants and creatures as particles PO43-and HPO42-. It is a piece of DNA-particles, of atoms that store vitality (ATP and ADP) and of fats of cell films. Phosphorus is likewise a building piece of specific parts of the human and creature body, for example, the bones and teeth. 




Supplements travel through the biological system in biogeochemical cycles. A biogeochemical cycle is a circuit/pathway by which a concoction component travels through the biotic and the abiotic elements of a biological community. It is comprehensive of the biotic factors, or living beings, rocks, air, water, and chemicals.
3 0
3 years ago
Read 2 more answers
In the year 100, Ptolemy introduced the geocentric model of the solar system. By the year 1542,
Alecsey [184]

Answer: Ptolemaic system, also called geocentric system or geocentric model, mathematical model of the universe formulated by the Alexandrian astronomer and mathematician Ptolemy about 150 CE and recorded by him in his Almagest and Planetary Hypotheses. The Ptolemaic system is a geocentric cosmology; that is, it starts by assuming that Earth is stationary and at the centre of the universe. The “natural” expectation for ancient societies was that the heavenly bodies (Sun, Moon, planets, and stars) must travel in uniform motion along the most “perfect” path possible, a circle. However, the paths of the Sun, Moon, and planets as observed from Earth are not circular. Ptolemy’s model explained this “imperfection” by postulating that the apparently irregular movements were a combination of several regular circular motions seen in perspective from a stationary Earth.

Explanation:

i hope this help

8 0
3 years ago
How does photosynthesis contribute towards maintaining a clean environment and ensuring food security?​
azamat

Answer:

Well for one photosynthesis gives out oxygen. This makes all animals able to live. So in that way it helps us and the world around us. Without photosynthesis we also could not eat food. No animals could live and no plants ould live. VERY IMPORTANT!

Explanation:

5 0
3 years ago
Other questions:
  • The simplest level of biological organization at which something can considered "life" is?
    15·1 answer
  • How does the digestive system work with the nervous system?
    5·1 answer
  • The name given to the metabolic pathways in which cells harvest energy from food molecules is
    8·1 answer
  • Where is transcription located? (assuming eukaryote cell)
    14·1 answer
  • Why doesn't a ball roll on forever after being kicked at a soccer game
    5·2 answers
  • In the 11th century, a Chinese scientist named Shen Kuo was one of the first people to develop a theory of Earth's changing land
    6·1 answer
  • 4. Koalas are herbivores that eat leaves from
    7·1 answer
  • Al examinar la aleta de un pez primitivo, los científicos encontraron similitudes entre su estructura ósea y la de los reptiles,
    9·1 answer
  • 1. How many mating pairs are illustrated in Model 1:
    9·2 answers
  • Which of the following best describes the difference between a plant cell and an animal cell?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!