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In-s [12.5K]
3 years ago
8

3. What is frequency measured in? Kilowatt hours joules period hertz

Biology
2 answers:
timurjin [86]3 years ago
4 0

Answer:

hertz

Explanation:

Vsevolod [243]3 years ago
4 0

Answer:

Hertz

Explanation:

The international system of units states that frequency is measured in hertz.

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The water vascular system of echinoderms _____. The water vascular system of echinoderms _____. is analogous to the gastrovascul
aksik [14]

Answer:

<em>The water vascular system of echinoderms </em><em>functions in locomotion and feeding</em>.

Explanation:

Echinoderms have a unique vascular aquatic system called the <u>ambulacral system. </u>

The ambulacral system refers to a net of fluid-filled channels derived from the coelom with functions related to gas exchange, feeding, stimuli reception, and locomotion. This system acts as a hydro motor apparatus.

The opening to the exterior of this vascular system is through an opening known as madreporite. This structure is united to the circular channel that surrounds the animal´s mouth and from where five radial channels emerge and extend along each arm. Water runs through these structures and makes it possible the gas exchange, feeding, locomotion, and other functions. By hydrostatic pressure, little tubular feet are protruded and retracted and help the animal to move.

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3 years ago
Chemical that causes cells to react in a certain way? A.stomata B.stimulus C.hormone D.photosythesis
Sever21 [200]

Answer:

The answer is C. Hormones

Explanation:

3 0
3 years ago
Why does it matter that cold waters rise to the surface with many nutrients in a kelp forest?
enyata [817]
The kelp would not survive if warm waters rise, the nutrient bed lays with the cold waters
3 0
3 years ago
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How are embryonic stem cells and adult stem cells similar and different?
Korvikt [17]

Answer:

Both are cells and one is older than the other

Explanation:

8 0
3 years ago
Which macromolecule provides a person with most of the energy that is needed for daily activities?
GrogVix [38]

Answer;

Carbohydrates;

The macromolecule that provides a person with most of the energy that is needed for daily activities is carbohydrates.

Explanation;

-Biological macromolecules fall into four categories: carbohydrates, proteins, lipids and nucleic acids. The body uses carbohydrates, lipids and proteins for energy.

Carbohydrates are the main source of energy and for structural purposes, Lipids are used to store energy; important parts of biological membranes and waterproof coverings, Nucleic acids helps to store and transmit hereditary or genetic information. Proteins functions as a source of energy and to control the rate of reactions and regulate cellular process.

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3 years ago
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