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Scilla [17]
3 years ago
8

May somebody help me please ASAP !

Biology
1 answer:
Minchanka [31]3 years ago
3 0

Answer:

The first one: HH Hh Hh hh

Explanation:

Those are the genotypes - the phenotypes are the physical attributes the person will have. If there is the dominant gene (capital H) the child will have hitchhikers thumb. There is a 75% chance the child will have hitchhiker thumb and a 25% chance they will not.

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if you were to watch an individual neurotransmitter molecule just after it was released what would happen to it
Olenka [21]

Neurotransmitter leaves the presynaptic cell by exocytosis. It is released in the synaptic space, and moves to the postsynaptic membrane to meet its receptor. When binding occurs, it triggers a response in the new cell.

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Every neuron forms connections with another cell.  

When a presynaptic cell sends information, a neurotransmitter is released.  

After the exocytosis event, this chemical substance travels through the synaptic space forward to the other cell. Once there, it binds to its receptors in the postsynaptic membrane.  

When the joining occurs, the receptor acquires a channel shape. This change allows the ion transference that will make possible the modification of the action potential.  

This binding produces the excitatory postsynaptic potential -depolarization-.

A new action potential initiates in the postsynaptic cell and spreads to the rest of the membrane, depolarizing it.

If the communication between cells needs to stop, the neurotransmitter will be taken out from the synaptic space <em>instead of binding to its receptor. </em>

There are two mechanisms by which the neurotransmitter can be eliminated: by deactivation or reuptake.  

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Related link: brainly.com/question/14693514?referrer=searchResults

                     

6 0
3 years ago
What happens if cells have more salt molecules than water molecules?
Vadim26 [7]
I believe it’s B or D sorry I’m not 100% sure
3 0
3 years ago
Which one of the following physical quantities is formed after dividing mass of volume?
Mkey [24]

Answer:

Density

Explanation:

Density is refer to how much space an object in Mass take in volume.

It is mass if an object divided by volume.

It usually in g/cm3

8 0
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All organisms in an ecosystem are interrelated by the abiotic and biotic resources they use in the course of their lives:
jonny [76]

<span>a)      </span>The milkweed is the primary producer in the ecosystem. It manufactures food from the abiotic factors in the soil such as nitrates and water and those in the atmosphere such as carbon-dioxide and sunlight. The milk weed is then fed on by the caterpillar and a primary consumer. The caterpillar is then fed on the mocking bird (secondary consumer)

<span>b)      </span>Increased human population growth and their activities have resulted in the emission of carbon dioxide and other greenhouse gases in the atmosphere. This has increased the global temperature. This increase of global temperature increase ocean temperatures causing coral bleaching.

Another example is depletion of water sources by human activities hence causing drought. Drought reduces the amount of vegetation growth due to scarcity of water in the soil (due to lowering of the water table) for plant growth.  

3 0
4 years ago
What are two characteristics that all bacteria share?
dlinn [17]

They live every where

They can effect you and other organisms

They are microscopic
7 0
3 years ago
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