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Rufina [12.5K]
2 years ago
14

Muscle fibers in the _____ enable it to increase or decrease the diameter of the pupil to allow more or less light to enter the

eye.
Biology
1 answer:
Oksanka [162]2 years ago
8 0

Answer:

iris

Explanation:

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Which of the following is an advantage of an in vitro experiment?
olchik [2.2K]

Answer:

Which of the following is an advantage of an in vitro experiment?

Variables and environmental conditions are controlled.

Explanation:

An advantage of in-vitro experiment is that the variables and environmental conditions are controlled because in-vitro experiment is performed outside a living organism with the environment in control

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3 years ago
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Color (black/gray/red) is a ___________ characteristic
Reil [10]

Their are three main characteristic is intensity, saturation, and hue .

Red color is motivated by power, black is achromatic color with hue  like white gray and white.black is symbol of darkness.  Brightly co-loured object is one that reflects and transmits a large portion of light falling on it.

The great amount of light is reflected on white screen while a black screen would not reflects any light. Co-lour  also linked with various personality trait , motivation and productivity levels in life. It symbolize life and death , love and evil and happiness and anger.Red color makes you feel passionate and energized.

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2 years ago
What is the relationship between respiration cel and photothenthisis
Tomtit [17]

Answer:

In explanation.

Explanation:

Relationship between photosynthesis and cellular respiration.

-Both involve in the production of energy

-Both involve the exchange of gases

-Both the process takes place in cell organelle which was considered as endosymbiotic organism. They are chloroplast and Mitochondria, Photosynthesis takes place in the Chloroplast whereas respiration takes place in mitochondria.

-At critical condition both have an alternate pathway.

Extra: differences between photosynthesis and cellular respiration.

-Photosynthesis takes place in the chloroplast, whereas respiration takes place in mitochondria.

-Photosynthesis involves the production of carbohydrate and respiration involve breaking of carbohydrate.

-Photosynthesis occurs only during the presence of sunlight whereas respiration occurs all the time.

-In the photosynthesis process Oxygen is released whereas in respiration Oxygen is utilized.

5 0
2 years ago
Neurotransmitters can affect postsynaptic cells by I) initiating signal transduction pathways in the cells II) causing molecular
Yakvenalex [24]

Neurotransmitters can affect postsynaptic cells by causing molecular changes in the cells.

The term "chemical messengers of the body" is frequently used to describe neurotransmitters. The nervous system uses these molecules to send information between neurons or from neurons to muscles. A neurotransmitter influences a neuron in one of three ways: excitatory, inhibitory or modulatory.

When a stimulus is potent enough, the chemical messenger neurotransmitter is transferred into the nerve impulse. If it is powerful enough, it will reach the postsynaptic cell and affect the structure of the neuron. And when signal transduction happens, everything mentioned above is completed.

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8 0
1 year ago
How is loss of biodiversity connected to extinction of organisms?
Mariana [72]

Answer:

In an ecosystem, everything is connected. All ecosystems have some form of food chain and symbiosis. This means that animals rely on each other for life. If one animal were to die then others would be negatively affected. Overall, this means that when biodiversity is lost it becomes harder for organisms to survive. For example, pandas rely on bamboo to survive. So, when it gets cut down and destroyed the pandas also suffer. Additionally, in ecosystems, a wide variety of organisms helps other living creates have more forms of survival. This shows how important biodiversity is.

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