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Lunna [17]
3 years ago
7

Although animal nervous systems differ in complexity, their nerve cells are still remarkably similar. true false

Biology
1 answer:
Norma-Jean [14]3 years ago
3 0

Answer:

TRUE

Explanation:

The nervous system only exists in animals. Neurons are the nerve cells that compose the nervous system.

The neuron´s principal function is to catch stimuli from the exterior convert them into nerve impulses that get transported to the control centers. These control centers interpret the signal and send an answer to the stimuli.

The control centers in invertebrates are ganglia, while the vertebrate´s control centers are the spinal medulla and the encephalon.

The signal transport occurs from cell to cell in inferior animals and through nerves in superior animals.

There is a progressive increase in the complexity of the nervous system. It evolved from primitive animals to the most superior ones. This evolution is especially noticeable in the development of the encephalon as the control center.

However, the basic nerve cell is very similar in all animals.

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I NEEEEED HELP ON THIS PLSSS
geniusboy [140]

Answer:

2

Explanation:

2 2. 2 2 2 2 2 2 2 2 2 2 2. 22. 2 2 2 2 2 2 2 2.

6 0
3 years ago
The backbone vertebrae, skull, and rib cage make up the _______ skeleton. Among other types of cells, bone marrow produces _____
Westkost [7]

Answer:

1. axial

2. red

3. Osteoblasts

4. osteoporosis

5. Ligaments

Explanation:

The axial skeleton consists of the bones of the head and trunk of a vertebrate including skull, and rib cage.

Bone marrow produces red blood cells, which carry oxygen in the blood.

Osteoblasts can become osteocytes, which are the third type of bone cells.

Osteoporosis  is a bone resorption disease in which bones rapidly deconstruct faster than new bone tissue grows, and decreases the mechanical strength of bones.

Ligaments connects one bone to other at joint such as medial collateral ligament (MCL) and anterior cruciate ligament (ACL) that joins knee.

Hence, the correct answer for the question is as follows:

1.axial

2. red

3. Osteoblasts

4. osteoporosis

5. Ligaments

7 0
4 years ago
30 POINT QUESTION!!!!!! 9. The graph below shows that the kinetic energy increases more as the velocity goes up. The graph is a
Oduvanchick [21]
It is going up quickly due to the speed
7 0
3 years ago
In biological macromolecules like proteins, the hydrophobic residues tend to clump together in the interior of the folded struct
Brut [27]

Answer:

The water and polar residues cannot bind to the hydrophobic ones, so in the lowest energy state the hydrophobic residues are pushed together in the middle.

5 0
3 years ago
When technological advancement was necessary before scientists could begin to observe cells
kifflom [539]

Cells are the tiniest structural and functional unit of a living organism. They consist of nucleus and cytoplasm that are enclosed in a membrane. The cells are invisible to the naked eye and hence a microscope was needed to observe them. Robert Hooke was the first scientist to observe them under the microscope.

3 0
3 years ago
Read 2 more answers
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