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Tasya [4]
3 years ago
10

List the two types of atroventricular valves. beside each describe where they are located

Biology
1 answer:
miv72 [106K]3 years ago
6 0
Tricuspid valve: located between upper and lower chambers.

Pulmonary valve: Found in arteries leaving heart.
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The _____ demonstrates the cell theory because it develops cells that fuse to form one giant cell, making up the whole organism.
saul85 [17]
It isn't Bacteria or Archea. They're just unicellular. Cork is dead.

Slime mold is the correct answer.




7 0
3 years ago
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Three interesting facts about nucleic acids
romanna [79]
1. Nucleic acids are the molecules that code the genetic information of organisms.

2. The two nucleic acids used in the repair, reproduction and protein synthesis are deoxyribonucleic acid (DNA, shown) and ribonucleic acid (RNA)

3. DNA and RNA are polymers made up of monomers called nucleotides
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3 years ago
Describe neurulation and relate the components of a fully developed nervous system to the neural tube and neural crest.
STatiana [176]
Neurulation is termed as the folding process within which is invertebrates embryos. It includes the transformation of the neural plate into the neural tube. At this transformation of the neural plate into the neural tube. At this stage, the embryo is known as neurula. 
The process starts when notochord induces the formation of the central nervous system and this is by signaling the ectoderm germ layer which is above and it forms flat and thick neural plate.
The work of neural tube and then later differentiates to the brain and spinal chord which then forms central nervous system.
Neural tube portions forms by two different processes. for example secondary neurulation and primary neurulation.
Secondary neurulation the tube forms by hollowing out of the interior of the solid precursor
In primary neurulation, the neural plates crease inward until when the edges come into fuse and contact
4 0
4 years ago
Which nervous system regulates involuntary activities that you probably don’t even realize are happening?
Feliz [49]
The correct answer should be
<span>D. Autonomic nervous system

It is called autonomic because it works on its own and it regulates organs functioning which is a thing that happens involuntarily. It regulates heart beats for example and it's not something that you do voluntarily since the heart beats regardless of you. It also controls things like vomiting or sneezing that you can't choose not to do when it starts happening.</span>
8 0
4 years ago
What would be the functional problems that would be experienced by a person in which the fiber tracts listed below have been cut
Ad libitum [116K]

1. Dorsal column-medial lemniscal pathways - It would prevent the body from receiving stimuli related to pain and temperature: Corresponds to sensory pathways related to an organism's proprioceptive awareness. It is through these pathways that sensory stimuli and electrical impulses are transmitted from the body to the brain resulting in the display of quick and efficient responses. If cut, the individual would not be successful in receiving stimuli related to pain and temperature.

2. Anterolateral pathways - It would also prevent the sensation of pain and temperature, in addition to hindering the perception of touch and pressure: Located in the anterior part of the lateral column, this pathway is responsible for the transmission of nociceptive information, generally related to pain awareness. and temperature. Its cut would not only make it difficult to transmit these factors, but it would also make it difficult to transmit extroceptive information to the cortex.

3. Spinocerebellar pathways - would hinder information about the position of body members and joints: This pathway is located between the spinal cord and the ipsilaterally in the cerebellum. It consists of thousands of axonal fibers whose main function is to transmit information about the location of the body members, arms and legs, in addition to their joints. Its cut would make it difficult, or even prevent this information from being captured by the brain.

4. Pyramidal pathways - It would prevent the union of the cerebral cortex to the motor neurons of the spinal cord: It is formed by several axons that extend between the cerebral cortex and the spinal cord passing motor information that would be interrupted if the path was cut.

3 0
3 years ago
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