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solniwko [45]
3 years ago
13

Which of the following is not a common sign of a possible chemical reaction?

Biology
1 answer:
stepladder [879]3 years ago
8 0
The answer is <span>C. Change in odor.

There are several signs of chemical reaction:
1. Dissolved precipitate.
2. Formation of gas (bubbles).
3. Change of color.
4. Change of temperature (warming or cooling).
5. Production of energy.

Among these signs, there is no change in odor, which is, thus, the right choice.</span>
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yulyashka [42]

Answer:

The number of primary consumers will increase

Explanation:

If all the secondary consumers disappear, the primary consumers will continue to reproduce causing the population to increase

4 0
3 years ago
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When cells communicate by the signaling process, one cell produces a _________________BLANK that must be received by the _______
velikii [3]

Answer:

1. Signaling molecule

2. Signaling receptors

Explanation:

Hormones, growth factors, neurotransmitters, etc. serve the function of signaling molecules for cells. These molecules are released by one cell and bind to the receptors present on/in the target cells to elicit the desired response. Thereby, the signaling molecules serve in cell-cell communication.

For example, insulin hormone synthesized and released from beta cells of pancreas binds to its cell surface receptors present on the surfaces of liver cells and muscle cells to stimulate the uptake of the glucose from the blood.  

Likewise, neurotransmitters released from the presynaptic neuron bind to receptors present on the membrane of postsynaptic neuron and serve to carry the nerve impulse to the postsynaptic neuron.  

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2 years ago
Coaches will often urge athletes to exercise when they have a cold or other infection. What is the immunological reasoning behin
damaskus [11]

Exercise is the primary advice the coaches give to the athletes if they get a cold or any other infection. The main reason behind this advice is the fact that exercising strengthens the immunity of a person. When a person has an infection, the strengthening of the immune system will help his body to efficiently fight against the infectious pathogens. The blood circulation is increased which is involved in the enhancement of the acute immunity of the person.

3 0
3 years ago
The diagram shows the results of meiosis. The parent cell has one pair of chromosomes. The locations of three genes are shown
Kobotan [32]

Answer:

Crossing over in the chromosomes

8 0
3 years ago
A new monkey species has developed. This species climbs trees and has opposable thumbs but does not have a prehensile tail. Whic
svetoff [14.1K]

Answer:

B. Old world monkeys

Explanation:

The Old World monkeys (including baboons) inhabit Africa and Asia, and are more closely related to apes. They are generally larger than New World monkeys, have more elongated faces, and have a tail that is not "prehensile".

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3 years ago
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