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

Answers

Answer 1
Answer: it is called Pangaea.
Answer 2
Answer: the supercontinent is called pangea

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20 POINTS!! PLS HELP for Social Studies: Out of all the different ancient lands you have learned about, discuss which one you would like to live in most!

Discuss these points on why:

Trade

Location

Land

Beliefs

Answers

Answer:

Associated with Mesopotamia are ancient cultures like the Sumerians, ... Learning about this time period can be a little confusing because these ... We believe Sumerian civilization first took form in southern Mesopotamia ... them to travel into the Persian Gulf and trade with other early civilizations,

Explanation:

What is the polysaccharide found in plant cell walls?

Answers

The polysaccharides that are found in the walls of the plant cells come in three types. These three types includes the cellulose, hemicelluloses, and the pectic polysaccharides. These are very important sugars that are found in the the cell walls plants. 

Actin and myosin, found mostly in muscles cells, are made up of which type of macromolecule?Nucleotides
Proteins
Lipids

Answers

Answer: Proteins

Actin belongs to a family of globular multifunctional protein and myosin is a belongs a family of motor proteins. Both actin and myosin combines to form microfilaments. These are found in the eukaryotic cells. In humans and animals the combination of actin and myosin is responsible for contraction and relaxation of muscles in the presence of ATP.

Final answer:

Actin and myosin, which are primarily found in muscle cells, are macromolecules made up of proteins. These proteins are critical in muscle movement and function.

Explanation:

Actin and myosin are made up of proteins. Proteins are one of the macromolecules vital for building and repairing tissue. In the context of muscle cells, actin and myosin play a pivotal role. They interact to cause muscle contraction, a process vital for movement. Actin is a thin filament while myosin is a thicker one, and they slide past each other to cause the contraction of the muscle. Therefore, proteins have a substantial role in muscle movement and function.

Learn more about Actin and myosin proteins here:

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(someone please help me. IV been on this for 2 hours)Look at your table. What conclusions can be said about the genetic makeup of your main subject?

Answers

Answer:

The freckle gene was more dominant than the non freckle gene, therefore resulting in the main subject having freckles. Relative 1 did not have a dominant freckle gene, therefore they didn't have evident freckles - besides the freckles, all other characteristics were present in all 3 subjects.

Answer:

Explanation:

The freckle gene was more dominant than the non freckle gene, therefore resulting in the main subject having freckles. Relative 1 did not have a dominant freckle gene, therefore they didn't have evident freckles - besides the freckles, all other characteristics were present in all 3 subjects.

Which statement best illustrates vibrational motion?

Answers

C. A cello playing music at a concert.

Calcium reabsorption by the kidneys is promoted by the hormone called _______

Answers

parathyroid hormone (PTH)