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kaheart [24]
3 years ago
6

What type of fibers are not man made?

Biology
1 answer:
Marrrta [24]3 years ago
8 0

Some man-made fibres, too, are derived from naturally occurring polymers. For instance, rayon and acetate, two of the first man-made fibres ever to be produced, are made of the same cellulose polymers that make up cotton, hemp, flax, and the structural fibres of wood.

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Respiration involves the release of energy due to the breakdown of large polymers. What type of a reaction is respiration?
forsale [732]
Respiration is an exergonic reaction. An exergonic reaction is one in which energy is released, and as a result the products of this reaction will have less energy than the original products. Cellular respiration can also be referred to as a catabolic pathway, which means bigger molecules get broken down into smaller molecules and therefore there is extra energy at the end of the reaction.
4 0
2 years ago
Which vital sign can be controlled consciously?
GuDViN [60]

Answer: Respirations

Explanation:

6 0
1 year ago
The sensory cells associated with this sense actually hyperpolarize in response to their stimulus modality...
vaieri [72.5K]

Answer:

Vision

Explanation:

Sensory cells may detect the information like taste, touch, hear and vision by the presence of receptors located on their surface.

Hyperpolarisation may be defined as the change in the cell's membrane potential towards more negative. The sensory vision cells are associated with the hyperpolarisation of cells and makes the cells environment more negative  in response to the stimuli.

Thus, the correct answer is option (d).

8 0
3 years ago
Which sequence correctly indicates the branching pattern of the human respiratory system?
larisa86 [58]

Answer:

A

Explanation:

7 0
3 years ago
Blood ph and cerebrospinal fluid ph are affected by carbon dioxide content. how does this enable the organism to sense a disturb
frutty [35]

The answer is B. The cardiac, respiratory, and vasomotor control centers are in the medulla. This means that the medulla controls heart rate, blood pressure, breathing, and the size of the body's blood vessels. They have chemoreceptors, pH sensing structures that detect levels of carbon dioxide in the blood and adjust the breathing rate accordingly.






3 0
3 years ago
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