Which phrase best describes definition diffusion

Biology

1 answer:

Cloud [144]3 years ago

3 0

Answer:

Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.

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Which characterization accurately describes BOTH regular fossils and index fossils?

kompoz [17]

Answer:

Explanation:

Fossils tell us where they came from.

Have a great day

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2 years ago

Why chlorophyll b is not found in alll eukaryotes

andrew-mc [135]

Answer:

All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll "a". A second kind of chlorophyll is chlorophyll "b", which occurs only in "green algae" and in the plants.

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2 years ago

Abe knew from his anatomy class that there are three different kinds of muscle tissue in the body. He knew lifting weights would

Aleksandr [31]

Answer:

Three different kinds of muscles are -:

SKELETAL MUSCELES
CARDIAC MUSCLES
SMOOTH MUSCLES

Explanation:

SKELETAL MUSCLES -: There are long, cylindrical, and striated skeletal muscle cells. They are multi-nucleated, which means they have more than one nucleus. This is because from the fusion of embryonic myoblasts, they are created. Each nucleus controls the sarcoplasm's metabolic demands around it. There are high energy requirements for skeletal muscle cells, because they contain several mitochondria in order to generate adequate ATP. Examples of skeletal muscles: arms and legs- The muscles that belong to the arms and legs feature in pairs. Abdomen and Back- These muscles are connected to the various sets of skeletal muscles that run across the torso.
CARDIAC MUSCLES -: Cardiomyocytes have a short and narrow outline and are fairly rectangular. They are about 0.02 mm wide and 0.1 mm (millimetres) long, respectively. There are many sarcosomes in cardiomyocytes, which provide the required energy for contraction. Cardiomyocytes usually contain a single nucleus, unlike skeletal muscle cells. Cardiomyocytes, although they contain more sarcosomes, normally contain the same cell organelles as skeletal muscle cells. example - cardiac muscle is present in heart.
SMOOTH MUSCLES -: Smooth muscle cells have a single central nucleus and are spindle-shaped. They range in length from 10 to 600 μm (micrometers), and are the tiniest type of muscle cell. In the expansion of organs like the kidneys , lungs, and vagina, they are elastic and therefore essential. As in cardiac and skeletal muscle, the myofibrils of smooth muscle cells are not aligned, meaning they are not striated, hence the term smooth. example of smooth muscles -: Walls of blood vessels , Walls of stomach , Ureters , Intestines , In the aorta (tunica media layer), Iris of the eye. ,Prostate and Gastrointestinal Tract.

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3 years ago

Rbc, wbc, and platelets all constitute what part of whole blood

grigory [225]

Solution:

Rbc, wbc, and platelets all constitute what part of plasma in the whole blood.

Thus this the required answer.

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3 years ago

In what two ways did the Soviets stray from the ideas about communism advanced by Karl Marx?

nikitadnepr [17]

Answer:

By not giving powers to workers.

Explanation:

They added other ideas to this body of the argument, Marx said that industrial society was capitalist.

He was more concerned that workers would triumph in their conflict was capitalists.

This would be a communist society, it was the natural society of the future.

Marx believes that to free themselves from the exploitation of capitalist, workers had to create a radical socialist society where all property was socially managed.

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3 years ago