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Neporo4naja [7]
3 years ago
7

What are the seven properties that define life

Biology
1 answer:
lions [1.4K]3 years ago
5 0
Cellular organisation, homeostasis, metabolism, responsiveness, hereditary, and growth
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What are the biological levels of organisms? (Explain each one)
alisha [4.7K]

Answer:

1:  Cells

2: Tissues

3: Organs

4: Organ Systems

5: Organisms

Explanation:

1: A Cell is the basic unit of life. Some people refer to it as "building blocks of life."

2: Tissues are groups of cells that work together to achieve a certain task.

3: Organs are groups of tissue that work to make the vital parts of the body

4: Organ Systems are groups of organs that work together to provide for body function. EX: Respiratory System, Circulatory System, Digestive, etc.

5: Organisms are any living thing that have many organ systems that work together. EX: Humans.

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What statement correctly explains why moist-heat is more effective than dry-heat for sterilization purposes?
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Answer:

Dry heat will always be a lower temperature than moist hea

Advantages of Dry Heat sterilization

Reliable, nontoxic.

Low cost and is easy to install.

As the instrument remains dry after sterilization, there are no chances of corrosion.

Not harmful to the environment.

Disadvantages of the Dry Heat Sterilization

It requires more time for sterilization.

Exposure to the higher temperature may be harmful to the instrument.

Explanation:

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3 years ago
Use the drop-down menus to select the names of the<br> labeled structures<br> A:<br> B:<br> C:
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Answer:

<em><u>A</u></em><em><u>:</u></em><em><u> </u></em><em><u>crust</u></em>

<em><u>B</u></em><em><u>:</u></em><em><u> </u></em><em><u>mantle</u></em><em><u> </u></em>

<em><u>C</u></em><em><u>:</u></em><em><u>core</u></em><em><u> </u></em><em><u>explanation</u></em><em><u> </u></em><em><u> </u></em><em><u>may</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>u</u></em><em><u> </u></em><em><u>buddy</u></em><em><u> </u></em>

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3 years ago
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Researchers discover a plant that does not need sunlight for growth. They isolate a unique compound found in the plant's roots.
Oxana [17]

If the new compound breaks down into amino acids and functions to break down organic matter into food for the plant, then the researchers discovered a biological catalyst.

<h3>What is an enzyme?</h3>

An enzyme can be defined as a special type of biological catalyst that helps to speed up the rate of a given chemical reaction.

Enzymes are proteins that can be considered as the main class of biological catalysts, but there are also other biological catalysts called  ribozymes which are specifically composed of nucleic acids, i.e., RNA-based catalysts.

In conclusion, if the new compound breaks down into amino acids and functions to break down organic matter into food for the plant, then the researchers discovered a biological catalyst.

Learn more about biological catalysts here:

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1 year ago
What is salivary gland? tell its functions.
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Answer:

Parotid glands are the largest salivary gland. Each gland is approximately 6 cm long and 3-4 cm wide and can weigh up to 30 grams. They are located within each of our cheeks. In our oral cavity they are responsible for the secretion of about 20% of saliva. This saliva is known as serous i.e. more liquid and fluid. It helps in the first phase of the digestion of food, facilitate mastication "chewing". These glands secrete protein-rich fluid which is a suspension of alpha-amylase enzyme.

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