Pleaseeeeeeeeeeee help ......

Biology

1 answer:

vesna_86 [32]2 years ago

3 0

Answer:

The population will start dying off.

Explanation:

As the individuals compete for a fixed amount of resources, the juveniles and diseased and weaker individuals will lose the competition

The process will start happening around Year 3, but it will become a life-and-death battle for survival in Year 5.

The poputation will stabilize at 14 600 individuals.

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A postsynaptic neuron has three presynaptic inputs - from neurons X, Y, and Z. Stimulation of neuron X causes the postsynaptic n

xenn [34]

Answer:

Y is probably excitatory and Z is probably inhibitory

Explanation:

Two neurons communicate with each other generally by releasing neurotransmitters.
The neuron which releases the neurotransmitter is termed as presynaptic neuron and the neuron to which the neurotransmitter binds to exert its effects is called as postsynaptic neuron.
Based on the nature of the neurotransmitter released, the presynaptic neurons can either be inhibitory or excitatory in nature.
The change in the membrane potential of the postsynaptic neurons depends on the total sum of inputs coming from different pre synaptic neurons at a given time.
From the given situation, the stimulation by X alone is causing deploarization of 0.5 mV which shows that it is causing excitation, and since depolarization is increasing when X and Y are stimulaneously stimulated Y is also excitatory in nature. However the depolarisation is not occurring when X and Z are stimualted together and hence, Z is probably inhibitory in nature.

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3 years ago

In an animal cell, what is the function of the lysosomes?

Alik [6]

Release enzymes outside of the cell (exocytosis)
which may serve the purpose of destroying materials around the cell.Break-down 'digestion' of materials from inside the cell (autophagy)
i.e. by fusing with vacuoles from inside the cell.
This could include digesting worn-out organelles so that useful chemicals locked-up in their structures can be re-used by the cell.Break-down 'digestion' of materials from outside the cell (heterophagy)
i.e. by fusing with vacuoles from outside the cell.
This could include breaking-down material taken-in by phagocytes, which include many types of white blood cells - also known as leucocytes. Specific mechanisms of heterophagy can be:phagocytic - by which cells engulf extracellular debris, bacteria or other particles - only occurs in certain specialized cellspinocytic - by which cells engulf extracellular fluidendocytic - by which cells take-up particles such as molecules that have become attached to the outer-surface of the cell membrane.Recycle the products of biochemical reactions that have taken place following materials being brought into the cell by endocytosis (general term for this 'recycling' function: biosynthesis) 
Different materials (chemicals) are processed in different ways, e.g. some structures may be processed/degraded within lysosomes and others are taken to the surface of the cell.Completely break-down cells that have died (autolysis)

In general, the functions of lysosomes involve breaking-down i.e. processing to 'make safe' or make use of, or removing from the cell e.g. by exocytosis, useless and potentially harmful materials such as old worn-out parts of the cell or potential threats such bacteria. Lysosomes can therefore be thought of as the rubbish disposal units within cel

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3 years ago

Read 2 more answers

A gene is ____

andriy [413]

A gene is Code for a trait, are small sections with DNA strand, Are blueprints for proteins.

Therefore, Option D. All of the above is correct!!~

4 0

1 year ago

Use the numbers to put the steps of transition in order, from first (1) to last (5)

Dvinal [7]

Answer:

1 2 3 4 5 is the transition form 1 to 5

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zvonat [6]

Answer:

Yes, it is.

Explanation:

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