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yanalaym [24]
3 years ago
12

Which type of stimulus is an allergen, such as pollen?

Biology
2 answers:
Kitty [74]3 years ago
8 0
It is A response to a stimulus
kobusy [5.1K]3 years ago
7 0
<span>A. response to a stimulus</span>
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How would you expect the attenuation of light (like with increased turbidity) to influence net productivity? Why?
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<span>Having things other than chlorophyll (or bacteriochlorophyll or bacteriorhodopsin) absorbing the light will decrease productivity in any ecosystem whose biotic basis is photoautotrophs.</span>
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3 years ago
Explain the functions of a nervous system
nika2105 [10]

Answer:

It has 3 main functions

1.Sensory. The sensory function of the nervous system involves collecting information from sensory receptors that monitor the body’s internal and external conditions.

2.Integration. The process of integration is the processing of the many sensory signals that are passed into the central nervous system at any given time. These signals are evaluated, compared, used for decision making, discarded or committed to memory as deemed appropriate.

3.Motor. Sends a signal to the Corresponding effector then releases a hormone or moves a part of the body to respond to the stimulus.

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3 years ago
Explain how the terms in each set below are related.
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they are all apart of life and the life cycle

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all apart of the life cycle human pyramid...

6 0
2 years ago
A student draws a fence with several gate as part of a model of cellular transport explain what defence indicates represent blam
Oksi-84 [34.3K]

The given question says that a student has constructed a model of cellular transport using fences and several gates.  

This model can be used to demonstrate the cellular transport.

The gates of the fences can be supposed as the protein pumps and the other fence demonstrates the lipid bilayer.  

Let’s suppose in the fence, there are many cattles, and outside, there are less cattles, but the student open the gate and bring more cattles inside the fence. In this case, the transport of the cattles is similar to the active transport of the molecules using protein pumps. At cellular level, the energy for the active transport is provided by ATP molecules.

Now, let’s say, the student wants to feed the cattles with some nutrition rich food, which can help in maintaining the health of the cattles. The student fills his car with the cattle food and he enters inside the fence through gates. In this case, the food was not present in the fence, but was abundant in the outside environment, so, the diffusion would occur. But food cannot come self, without help of others, so, the movement is facilitated by the car, as it is done by the carrier proteins. Hence, it is an example of facilitated diffusion.  


4 0
3 years ago
Determine the mass number of an atom if the given the number of protons and neutrons
REY [17]

Answer:

Add them!

Explanation:

The mass number of an atom is its total number of protons and neutrons

5 0
3 years ago
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