BIOLOGY HIGH SCHOOL

1.Liquid mercury has a density of 13.6 g/mL. An object with which of the following densities will sink in mercury?a. 095 g/cm3
b. 1.00 g/cm3
c. 11.4 g/cm3
d. 19.3 g/cm3

Answers

Answer 1
Answer:

Answer: /;

Explanation:

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Match the definition with the correct term: narrow, deep bay with steep walls.EmergentLagoonBarrier islandFiord <-----My answer. Is this correct?

If two objects of the same size will always have the same mass?

Answers

This is incorrect. Size and mass are not related. An example, a balloon that is filled with air can be compared to a bunch of iron that is of the same size yet it has much a smaller mass than the lump of iron.

These compounds are used to carry out chemical reactions and regulate metabolism in organisms?

Answers

Specific proteins found naturally in the body regulate the metabolic chemical reactions and every chemical reaction is synchronized with all the activities of our body. Enzymes regulate chemical reactions in living organisms.

Final answer:

Enzymes and inorganic compounds are used to carry out chemical reactions and regulate metabolism in organisms.

Explanation:

The compounds used to carry out chemical reactions and regulate metabolism in organisms are enzymes and inorganic compounds.

Enzymes are catalytic proteins that speed up chemical reactions in the body, including the breakdown of food and the conversion of energy. Inorganic compounds essential to human functioning include water, salts, acids, and bases, which play important roles in maintaining homeostasis and osmotic balance.

Learn more about Enzymes here:

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How is the reproductive system different from other body systems?

Answers

Most body systems are necessary to keep an individual alive.

Unlike other body systems, the reproductive system is not essential to keep an individual alive.

Answer:

Most body systems are necessary to keep an individual alive.

Unlike other body systems, the reproductive system is not essential to keep an individual alive.

Explanation:

edg. I got it right

Select all that apply.Select the items that have a pH level between 5 and 8.

pure water

Great Salt Lake

saliva

ammonia

Answers

Pure water is very close to a pH of 7. The Great Salt Lake (from what I've read about) can range from 8.2 to 7.7 in different areas. Saliva is between 6.5 and 7.5. And ammonia has a pH of 11.
So the items that have a pH between 5 and 8 are pure water, saliva, and possibly the Great Salt Lake.

Answer:

Pure water and Saliva

Explanation:

Pure water has a pH of about 7

Your saliva has a pH of about 6

The Great Salt Lake has a pH of about 10

Household ammonia has a pH in between 11 and 12

A conductor allows heat to flow easily, while an insulator resists heat flow. In general, what kinds of materials do you think are good conductors?

Answers

A conductor allows heat to flow easily, while an insulator resists heat flow. In general, metals are good conductors of heat and electricity.

What is a conductor?

A substance or material that permits the flow of electricity is known as an electrical conductor. When voltage is provided, electrical charge carriers, often electrons or ions, travel effortlessly from atom to atom in a conductor.

There are four different kinds of conductors: semiconductors, resistors, excellent conductors, and non-conductors.

Aluminum, gold, copper, brass, steel, and steel are all effective conductors of electricity. In the form of wires, we employ them in electrical circuits and systems. A great liquid conductor is a mercury. As a result, this material is used in numerous instruments. Thus, metals are good conductors.

Learn more about a conductor, here:

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Answer:

Copper Lead and Glass

A motor neuron and all of the skeletal muscle cells it stimulates is called a

Answers

The basic function of the nervous system is to send the signal from one organ to other organs with the help of neurons.

In this system, It includes:-

  • Sensory organ
  • Sensory neuron
  • CNS
  • Motor neuron
  • Target organ

All these unit help to transfer the singal from sensory organ to target organ. To perform an action, stimulus is required.

The unit in which Motor neuron and all of the skeletal muscle cells recives the stimulates is called a motar unit.

For more information, refer to the link:-

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A motor neuron and all of the skeletal muscle fibers it stimulates is called a motor unit.
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