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2 years ago

Physical and chemical changes occur during digestion. An example of a chemical

Biology

1 answer:

Fofino [41]2 years ago

8 0

Explanation:

enzyme breaking food down because their is are juice in the stomach and also in the intestines

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A population of pigs lives on an island together with burrowing termites. Pigs that have the longest snouts tend to survive more

ivolga24 [154]

Answer:

heredity?????

Explanation:

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2 years ago

The large, leaf-shaped piece of elastic cartilage that is attached to the anterior rim of the thyroid cartilage and forms a lid

trasher [3.6K]

The epiglottis. It prevents food from entering the respiratory tract

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3 years ago

How many chromosomes are in a human gamete (of a human body cell has 46?

Elanso [62]

23, half of the total. This is because a zygote receives 23 from the mother and 23 from the father.

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3 years ago

Which term does the letter X represent in the graphic organizer?

sasho [114]

The Letter X can represent any of the following options but the most correct option is ; Cell ( A )

Although your question lacks the required graphic organizer a general answer is provided within the concept of your question

A graphic organizer is a tool ( learning tool ) used by educators to present contents in a visual and text format. it is mainly used to establish connections between related components or concepts. they can also be referred to as knowledge maps.

The graphic organizer in this question will show the relationship between, cell --> organism --- >biosphere --->Ecosystem

Hence we can conclude that most correct option is ; Cell ( A ).

Learn more : brainly.com/question/20402473

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2 years ago

Describe all muscle tissues, including cell shape, layers, intercellular connections,

zmey [24]

<h2>Description of muscle tissues. </h2>

Explanation:

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

1. Cardiac muscle tissue: 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. Smooth muscle tissue: 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. Skeletal muscle tissue: 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.

Cell shape : 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.

Muscular layer: 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.

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

Outer layer: the muscle of the outer layer is arranged longitudinally.

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

There are mainly three types of junctions:

1. Tight junctions: It help to stop substances from leaking across a tissue.

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

3. Gap junctions: 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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3 years ago