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kolbaska11 [484]
2 years ago
15

Which of these are effects of environmental change on individual organisms

Biology
1 answer:
eimsori [14]2 years ago
7 0

Answer:

anomalies

Explanation:

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Describe the role of algae in marine biome
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They are the energy base of the food chain for all aquatic organisms, without them all aquatic organisms would most likely parish.
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2 years ago
Match the scientist with their scientific idea.
hammer [34]

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a1

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Which part of the influenza virion facilitates interaction between the virus and the to-be-infected eukaryotic host cell?
Radda [10]
The choices are:
<span>A.  Matrix protein
B.  Hemagglutinin
C.  An ion channel
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The right answer is B. Hemaglutinin

Explanation:
Haemagglutinins are triangular rods. They allow the attachment of Influenzaviruses on the target cells of the respiratory tree. In the presence of red blood cells, a haemagglutination (liquid medium) is obtained.
<u>About the other components of Influenza virus:</u>Neuraminidase is a mushroom-shaped spike composed of a tetramer consisting of 4 subunits of a single glycoprotein. At 37 ° C, the neuraminidase destroys the bonds (virus - cells) and thus allows the release of neoformed virions in the external environment: it is elution.
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7 0
3 years ago
Pain signals often have two components: an acute sensation of "first pain" which is felt almost immediately after an injury, and
o-na [289]

Answer:

This suggests that neurons that send the signals that we perceive as first pain Myelinated Tpye A-delta___, and neurons that send the signals that we perceive as second pain Unmyelinated-Type C.___.

Explanation:

Physiologically, primary afferent neurons that innervated the the touch, pain, temperature,and pressure receptors in the effectors  to input sensory signals to the spinal cord and the brain  are categorized based on their diameter, sizes, and nature of  myelination. Based on this;

<u>A-alpha has the largest diameter, myelinated, and sensitive to sensation from the muscle cells</u>

<u>A-beta are next in diameter, myelinated and sensitive to sensation  of touch.</u>

A-delta followed in diameter, and  size. They are mylinated, and sensitive to pain and temperature.

<u>C-fibres are least in diameter, they are unmyelinated, but sensitive to pain, touch and temperature.</u>

<u />

<u>Therefore, if the speed of conduction,of action  potential in a neuron depends on the diameter(thickness) and myelination of the axon(saltatory conduction)</u> :

''then, acute sensation/ first pain should be transmitted by the A-delta fibre. While the the slower/second pain should be transmitted by the slower unmyelinated - C-fibres''.

5 0
3 years ago
Melissa is studying a Gram-stained slide of curd bacteria. She sees many rod-shaped, violet-colored bacteria.What type of bacter
Serhud [2]

The answer is Paramecium.

The paramecium is a unicellular ciliated protozoan. They are often found in fresh water and brackish water areas. They have the elongated shaped that looks like a rod and has the color violet under the stain because it signifies that it is positive.

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