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mafiozo [28]
3 years ago
14

Some maerials can move across the cell membrane against a concentration gradient by

Biology
1 answer:
KATRIN_1 [288]3 years ago
7 0
Facilitated diffusion goes against a concentration gradient
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At room temperature an element is a
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the answer is b) liquid or gas

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3 years ago
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Identify a signal the brain sends out after the nervous system sends the signal that pH has dropped.
spin [16.1K]

In response to a notification of a <u>decrease</u> in blood pH by the nervous system, the brain sends signals to the external intercostal muscles and the diaphragm.

<h3>What is blood pH?</h3>

Blood pH can be defined as a measure of the molar concentration of hydrogen ions that are present in the blood of a living organism, with respect to its acidity, neutrality or alkanlity (basicity).

In response to a notification of a <u>decrease</u> in blood pH by the nervous system, the brain would send signals (impulses) to the external intercostal muscles and the diaphragm through its respiratory center, so as to help the living organism increase its breathing rate and the volume of its lungs during inhalation.

Read more on blood pH here: brainly.com/question/11209525

6 0
2 years ago
3. Under which type of change would more organisms be able to survive? Why?
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Most animals are well adapted to their biotic and abiotic conditions due to behavioural, physiological or structural adaptations that increase their chances of survival and reproduction. I looked it up for you

4 0
4 years ago
Which of the following molecules link together to form starch?
AnnZ [28]
<span>Glucose which can also be fats from excess carbohydrates. </span>
Carbohydrates actually get stored in the form of long polymers of glucose molecules or as glycogen starch. They provide energy to the animals for performing their daily duties. Carbohydrates are generally considered the fuel for all organisms, and without this most animals would become sloth and would be unable to perform the regular jobs. Carbohydrates are actually very easy to metabolise and hence generate quick energy.<span>
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5 0
3 years ago
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Periods of growth for the economy followed by downturns describes _____. real GDP final goods and services economic cycle
Fittoniya [83]

The correct answer is Economic cycle.

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The normal growth and downturn in the economy is the basic definition of Economic cycle.

During the time of expansion the investors seek to purchase companies and shares and during the time of contraction the investors look to invest and purchase the companies such as utilities and healthcare.

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