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Rainbow [258]
3 years ago
14

You throw a ball to win the

Biology
1 answer:
Gala2k [10]3 years ago
6 0
The nervous system is sending nerve receptors to your brain so that your arm the muscular system will throw the ball the skeletal system allows yourself to hold the ball and works with the muscles to contract and the amp system allows your body to create energy so you can throw the ball
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The cilia lining the upper respiratory passages (superior to the larynx) beat inferiorly, whereas as the cilia lining the lower
Anton [14]

Answer:

The cilia in the upper respiratory tract move mucus  down toward the pharynx whereas the cilia in the  lower respiratory tract move them up toward the pharynx.

Explanation:

Through the internal nares, the air enters nasopharynx from the nasal cavity. This air has dust-laden mucus. The nasopharynx is lined with ciliated pseudostratified columnar epithelium. These cilia move the mucus down toward the most inferior part of the pharynx. The lining of the larynx inferior to the vocal folds is made up of ciliated pseudostratified columnar epithelium and have ciliated columnar cells, goblet cells, and basal cells.

The goblet cells serve to produce and secrete mucus. The mucus from goblet cells helps trap dust that was not removed in the upper passages. Therefore, the cilia in the upper respiratory tract move mucus and trapped particles down toward the pharynx whereas the cilia in the lower respiratory tract move them up toward the pharynx.

7 0
3 years ago
_____ use a series of electromagnets to bend streams of electrons in much the same way that glass lenses bend beams of light.
kipiarov [429]
<span>Electron microscopes! :)</span>
6 0
3 years ago
Why does Ice Float on water? How does this affect life in Earth’s aquatic environments?
Sonbull [250]

This because ice is less dense than water of particular temperature range.  Water reaches its maximum density at 4 degrees. Ice is important especially for aquatic  life in the polar regions. Polar bears give birth and hunt on sea ice and they need it to travel from one region to another. The ice edge in coastal areas is an important feeding ground for the walrus that uses the ice as diving platforms to feed on clams on the sea floor. Ice algae grow at the porous bottom of sea ice and form the base of the unique marine food web connected to sea ice






7 0
3 years ago
Read 2 more answers
Which structure inside plant cells helps in photosynthesis?
Julli [10]

Answer:

chloroplasts

Explanation:

chloroplasts

Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.

6 0
3 years ago
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A biologist wants to know whether a plant's growth is affected by the material it's planted in. She plants lima bean seeds in a
Brilliant_brown [7]

A biologist wants to know whether a plant's growth is affected by the material it's planted in. She plants lima bean seeds in a jar of dirt, a jar of cotton, and a jar of rocks, then provides each jar with equal amounts of water, plant food, and sunlight. In this experiment, the independent variable is the material in which the plant is getting planted.

The independent variables are the variable that are in control of the experimenter. The independent variables do not depend on the other variable for their selection. The changes in a dependent variable is studied by varying the independent variable accordingly.

3 0
3 years ago
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