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Vanyuwa [196]
2 years ago
8

An insect's egg is fertilized internally.true or false?​

Biology
1 answer:
NARA [144]2 years ago
4 0

Answer:

False

Explanation:

because internal fertilisation occurs in most bony fish, many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds. Reptiles and insects produce leathery eggs, while birds and turtles produce eggs with high concentrations of calcium carbonate in the shell, making them hard.

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Which is a function of nucleic acids?
mash [69]

Answer:

they provide structure

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3 years ago
Are viruses living organisms
viva [34]

Answer:

No. Viruses are not living organisms.

Explanation:

Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.

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2 years ago
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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. <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.

7 0
2 years ago
Which two processes reduce the amount of carbon dioxide in the atmosphere?
Nookie1986 [14]

photosynthesis and respiration

6 0
2 years ago
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The part that gives the cell shape and holds the cytoplasm
Tamiku [17]
The cellular membrane, in the case of cells that don't have a rigid cellular wall, outlines the cell and contains the cytoplasm but it's the cytoskeleton that is more responsible for the shape of a cell, which come in a variety of shapes: squamous, cuboide, colunar, neurons, etc. In cells that do have a rigid cellular wall, such as plant cells, it's the cellular wall that gives it <span>its shape.</span>
6 0
3 years ago
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