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VikaD [51]
3 years ago
12

01.03]Which of the following statements about science is true? Science is built on opinions and assumptions. Science is tested b

y experimentation. Science tests the validity of art, philosophy, and religion. Science does not change once an answer is found.
Biology
2 answers:
topjm [15]3 years ago
6 0
Number 2. Science is tested by experimentation its not science if not tested then its just a theory.
Whitepunk [10]3 years ago
5 0
I think it's ' Science is testes by experimentation.
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A unique feature of muscle tissue is that it is capable of
kogti [31]

Answer:

Contraction.

Explanation:

Muscle tissues are defined as they are elastic and extensible in nature. In other words it's also defined as they are able to stretched and returned to its original size and shapes. A unique feature of muscle tissue is they are able of contractile in nature. With the help of this contraction they are able to sliding myosin and actin filaments which are present in muscles tissues.

Basically muscle tissues are three types:

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3 years ago
Compare and contrast the reasons cell division is important for unicellular and multicellular organisms. 2. Provide an example o
Ganezh [65]

(1)

For unicellular organisms, cell division is important for the reproduction of the population, Unicellular organism mainly use cell division, also called binary fission, for pollution growth. This is because unicellular organisms are only composed of one cell.

Multicellular organisms use cell division for growth and reproduction. Cell division causes increase in the number of cells composing the organism hence its growth in size. Cell division is also used to create gametes that are used in reproduction by fertilization.

(2)

Even in fully developed organisms, cell division is important in tissue repair. In tissue homeostasis, there is a balanced rate of cell division and cell death .  An example in muscles. Due to the stress experienced by muscle cells, they usually have a lower life span and therefore the damaged cells are often replaced with new ones by cell division. This prevents tissue wastage.

(3)

Growth factors signal the growth of a cell. They usually bind receptors on the cell surface and indicate how the cell should grow and divide base don environmental stimuli. An example is during regular exercises. Growth factors indicate that the muscle cells should divide regularly and grow bigger to accommodate the higher stress in the muscles from the workout. This is how your muscles grow bigger and stronger with more exercise.  

(4)

Differentiation of cells occurs through the silencing of some gene allowing the cell to produce particular proteins (and other biomolecules) that align with its functions in the body. This especially critical in multicellular organisms.  An example is that while al the cells in your body have the same DNA, some cells differentiate into liver cells while others into lungs, stomach, heart, and etcetera.  

Learn More:

For more on cell division check out;

brainly.com/question/4365207

brainly.com/question/11266913

#LearnWithBrainly

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2 years ago
A substance that speeds up the rate of a chemical reaction is called
maw [93]

Answer:

It is called An enzyme

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3 years ago
What do ribosomes do??
sleet_krkn [62]
Ribosome are where RNA is translated into protein. This process is called protein synthesis. Protein synthesis is very important to cells, therefore large numbers of ribosomes are found in cells. Ribosomes float freely in the cytoplasm, and are also bound to the endoplasmic reticulum (ER).
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