How do you maintain homeostasis ?

1 answer:

3 0

Hi aneece, i found a website that may help you with this
http://www.biologyreference.com/Ho-La/Homeostasis.html
try it and if it doesn't work just let me know and i find something else or even ask my teacher for you.

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What happens when a hypothesis is not supported

Lana71 [14]

Making a hypothesis is the first step of the scientific method, then it is disproved we start over from the beginning. Make a new hypothesis, test it again and see if the data supports the hypothesis. Continue this until you have a proper conclusion.

5 0

3 years ago

Animals in the taiga and alpine biomes hibernate during winter. Please select the best answer from the choices provided T F

velikii [3]

Answer:

true, thank me later hope this helps

7 0

4 years ago

At label ________, the cell is not hyperpolarized; however, repolarization is in progress, as the sodium channels are inactivate

azamat

Answer: C

Explanation:

When a neuron receives a stimulus, the sodium channels present in the membrane are opened, and therefore Na+ enters the cell in favour of the concentration gradient, so that the membrane potential changes to positive by means of ion exchange, producing depolarization. If this depolarization reaches a certain threshold value, an action potential is generated. The next step is the opening of the potassium channels and the inactivation of the sodium channels, so that the repolarization of the membrane takes place. The sodium channels, will return to the closed state in the hyperpolarization to continue in this state during all the rest potential achieving the action potential to return to -70 mV (repolarization).; until the arrival of a new action potential which produces the activation and opening of the sodium channels, repeating the cycle again and generating a new depolarizing action. This process is part of the synaptic transmission.

So, hyperpolarization is any change in the cell's membrane potential, which makes it more polarized. This means, hyperpolarization is an increase in the absolute value of the cell's membrane potential. Thus, changes in membrane voltage where the membrane potential is more distinctly positive or negative are hyperpolarizations.

During the repolarization period after an action potential, the membrane potential is more negative than when the cell is in "rest period". In the picture, this repolarization period is about 1-2 milliseconds. <u>So, repolarization is the time in which the membrane potential is hyperpolarized with respect to the resting potential.</u>

In the attached figure, part C indicates this repolarization period.

6 0

4 years ago

Which organisms are tertiary consumers in this food web? Select all that apply.

Vladimir [108]

Answer:

it is only the black cra ppie.

Explanation:

the whirl gig beetle, water cricket are secondary consumers and the copepod is a primary consumer.

7 0

3 years ago

In an experiment, a researcher counts the number of oxygen bubbles produced by water plants placed under different colors of lig

Vanyuwa [196]

Answer:

B. White light increases photosynthesis in plants.

Explanation:

Photosynthesis in simple term is defined as the process an organism uses the energy got from light in order to utilise CO2 and H2O for the production of glucose/organic matter and O2 as a gas. Examples of these organisms include,

plants, bacteria etc

6CO2 + 6H2O --> C6H12O6 + 6O2

Light can be absorbed by pigments in the oragnism cell like chlorophyll. Different pigments absorb different wavelengths of light. Leaves of a plant are green because the chlorophyll within them absorb all the other wavelengths of light in the spectrum and reflects green light. Absorption spectrum shows that red and violet light are the most absorbed whereas green light is most reflected.

A white light has maximum photosynthesis because white light is polychromatic i.e of varying colours so it could absorb blue, red, violet etc.

So therefore, White light increases photosynthesis in plants.

3 0

4 years ago