BIOLOGY HIGH SCHOOL

Saliva contains enzymes that break down proteins. a.True b.False

Answers

Answer 1
Answer:

Answer:

False

Explanation:

Enzymes from the salivary and the lingual glands digest carbohydrates and fats, enzymes from the stomach digest proteins.

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Jack is seeing an onion cell under a microscope. He observes formation of a cell plate. He is observing which phase of the cell cycle?
How are salts formed?A) By the covalent bonding of neutral atoms.B) By the covalent bonding of oppositely charged ions.C) By the ionic bonding of a cation and an anion.D) By intermolecular hydrogen bonding.
A malaria outbreak causing allele frequencies to change is an example of
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A spider's chelicerae secret sticky strands of silk. true or false?

an interaction in which an animal feeds on plants is called a. carnivory b. herbivory c. parasitism d. symbiosis

Answers

Your answer would be B. Herbivory.

What percentage of the energy needed to make aluminum cans from ore is needed to make recycled aluminum cans from used aluminum cans?

Answers

5% ,...................................

Red blood cells float in blood plasma. What kind of mixture is blood?

Answers

the answer is suspension

Which statement describes an effect of naturalselection on a species?
(1) It favors the survival of certain members
of the species and results in a change in
the proportion of individuals with highly
adaptive traits.
(2) It provides feedback mechanisms for members
of a species and results in a change in the
proportion of individuals with homeostatic
controls.
(3) It leads to reproduction with other species,
increasing the number of different adaptations.
(4) It increases competition between populations
that occupy different niches, increasing the
chance of extinction of the less-adapted
species.

Answers

I believe 3 only because natual selection can speed up reproduction so more mutations can be formed causing more genes so more genetic diversity can be caused.

When bonds are broken, energy is released.
True or false

Answers

Answer:

False. When bonds are broken, energy is absorbed.

Explanation:

Atoms form bonds to seek stability, which means lower energy compared to when they were separated. This means that separating atoms by breaking bonds is not energetically favourable.

Therefore, in order to break a chemical bond we need to provide energy to the system, which makes the process endothermic (it absorbes energy).

The attached image shows an energy diagram for the Hâ‚‚ molecule, showing the variation in energy during bond formation.
False. Breaking Bonds → Energy Absorbed

You have to put energy into a molecule to break its chemical bonds. The amount needed is called the bond energy. If you think about it, molecules don't spontaneously break.

What are three ways the atmosphere helps support life on Earth?

Answers

The three ways by which the atmosphere helps support life on Earth are as follows:

  • It protects the earth from incoming ultraviolet radiation from the sun.
  • It prevents the excess between the temperatures of day and night.
  • It delivers the need for oxygen for all living entities.

What is Atmosphere?

An atmosphere may be defined as an envelope of numerous gases that surrounds any celestial body like earth. It is considered the safety armor of the earth that protects living entities with numerous concerns.

The most important function of the atmosphere is to block out the passage of incoming harmful radiations from the sun. It also maintains a balance between the temperature during the day and night significantly.

As the atmosphere is the envelope of numerous gases, it contains one of the most precious gases that furnish life to living beings is oxygen which is utilized by the organisms to accomplish metabolic and cellular activities for their survival.

Therefore, it is well described above.

To learn more about Atmosphere, refer to the link:

brainly.com/question/24925283

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Three ways the atmosphere helps support life on earth are, protecting us from solar and cosmic radiation, providing us oxygen, and protecting us from objects falling from space.
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In eukaryotic cells, the timing of the cell cycle is regulated by?
What happens to the energy during a chemical reaction?Energy is burned up by the reaction. Energy is converted from one form to another. Energy is created by the reaction. Energy is used up by the chemical reaction.