Which type of cells have a high concentration of mitochondria?(1 point)

Responses

heart cells
heart cells

nerve cells
nerve cells

blood cells
blood cells

skin cells

None of the above

Which type of cells have a high concentration of mitochondria?Which type of cells have a high concentration of mitochondria?(1 point)

Responses

heart cells
heart cells

nerve cells
nerve cells

blood cells
blood cells

skin cells
skin cells

Heart cells

As you have learned, cells contain structures called organelles.

What organelle is responsible for packing proteins and other materials into vesicles?(1 point)
Responses

mitochondria
mitochondria

cytoplasm
cytoplasm

endoplasmic reticulum
endoplasmic reticulum

Golgi apparatus

Golgi apparatus

The nervous system is responsible for(1 point)

Responses

defending against disease like the flu or common cold.
defending against disease like the flu or common cold.

breaking down food and extracting nutrients.
breaking down food and extracting nutrients.

exchanging gases between the body and the environment.
exchanging gases between the body and the environment.

receiving and processing stimuli from the body.

receiving and processing stimuli from the body.

Which is the function of the esophagus?(1 point)

Responses

release digestive enzymes
release digestive enzymes

absorb nutrients from food
absorb nutrients from food

connect the mouth with the stomach
connect the mouth with the stomach

receive and chew food

connect the mouth with the stomach

Summarize the functions of the nervous system.(1 point)

Responses

The nervous system controls the muscular system by sending signals to the blood, telling it to move throughout the body.
The nervous system controls the muscular system by sending signals to the blood, telling it to move throughout the body.

The nervous system controls the respiratory system by sending signals to the muscles, telling them to flex and move limbs.
The nervous system controls the respiratory system by sending signals to the muscles, telling them to flex and move limbs.

The nervous system controls the digestive system by sending signals to the stomach, telling it to contract and digest food.
The nervous system controls the digestive system by sending signals to the stomach, telling it to contract and digest food.

The nervous system controls the circulatory system by sending signals to the lungs, telling them to expand and inhale oxygen.