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victus00 [196]
2 years ago
9

Question 39 (1 point)

Biology
1 answer:
mihalych1998 [28]2 years ago
3 0

Answer:

The correct answer is - d) all choices are correct.

Explanation:

Cattles remember the behaviour of human how they have treated them in the experiment and they also become less fearful of their handlers due to their gentle treatment.

Cattles develop memory and have a bond with their handlers and remember them and recognize them very well. In this experiment, it is found that animals also create an emotional bond with the human treat them well and gentle.

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A current challenge for doctors involves the bacterial strain Clostridioides difficile, which no longer responds to traditional
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is d. The bacteria have high genetic variability and high reproductive rates.

Explanation:

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What type of energy powers the cell growht
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Complex organic food molecules such as sugars, fats, and proteins are rich sources of energy for cells because much of the energy used to form these molecules is literally stored within the chemical bonds that hold them together. Scientists can measure the amount of energy stored in foods using a device called a bomb calorimeter. With this technique, food is placed inside the calorimeter and heated until it burns. The excess heat released by the reaction is directly proportional to the amount of energy contained in the food.

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Distilled water has a pH of 7. Milk has a pH of 6. Therefore, milk is: A. 10 times less acidic than distilled water. B. half as
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Answer:

(C) 10 times more acidic than distilled water.

Explanation:

The pH scale is logarithmic, meaning a pH difference of one is a difference of 10 times.

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Which of the following is a positive aspect of genetically engineered crops for the environment?
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You don't have to wait for the crops to grow on their own 
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Describe all muscle tissues, including cell shape, layers, intercellular connections,
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<h2>Description of muscle tissues. </h2>

Explanation:

There are three types of muscle tissue are cardiac, smooth, and skeletal.  

1. <u>Cardiac muscle tissue:</u><u> </u>It is located in the walls of the heart.

They appear striated.  

Control is involuntary.

Function: To pump blood through the blood vessels in your body.

2. <u>Smooth muscle tissue:</u><u> </u>It is located in walls of hollow visceral organs, except the heart.

They appear spindle-shaped.

Control is involuntary.

Function: To move food through the digestive tract.  

To regulates air flow in lungs.

3. <u>Skeletal muscle tissue:</u> It occur in muscles which are attached to the skeleton.  

They appear striated.

Control is voluntary.

Function: To support the body.

It makes bones and other body parts move.

<u>Cell shape :</u> There are different shapes of cells which are as follows:

1. Squamous 2.Cuboidal 3. Columnar 4. Polygonal  5. Stellate

6. Spheroid 7. Discoid 8. Fusiform 9. Fibrous.

<u>Muscular layer:</u> The muscular layer is present in many organs in the vertebrate body.

It is responsible for peristaltic movement in body.

There are two layers of muscle.

1. Inner 2. Outer layer.  

<u>Inner layer:</u> The muscle of the inner layer is arranged in circular rings around the tract.

<u>Outer layer:</u> the muscle of the outer layer is arranged longitudinally.  

<u>Intercellular connections or junctions: </u>These are the structures which provide adhesion and communication between cells.  

There are mainly three types of junctions:

1. <u>Tight junctions: </u><u> </u>It help to stop substances  from leaking across a tissue.

2. <u>Adhering junctions:</u> It perform the  function of cementing so as to  keep neighbouring cells together.

3. <u>Gap junctions:</u> It facilitate the cells to  communicate with each other by connecting the cytoplasm of adjoining  cells, for rapid transfer of ions, small molecules and sometimes big molecules.

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