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Amanda [17]
3 years ago
15

Defend the following stetement: All compounds are substances, but not all substances are compounds

Biology
1 answer:
Shalnov [3]3 years ago
3 0

A compound is always a substance because it's made out of two or more atoms bonded together. Now a substance isn't always a compound because it takes two or more elements to create a compound in a chemical reaction, ans substances can contain only one element. In other words a substance can be constructed of one type of atom. Some substances that aren't compounds are: gold and baking soda.

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Identify the correct statement about the resting membrane potential of a cell. Group of answer choices
Pie

Answer:C

Explanation:

Resting Membrane Potential (RMP) is the charge difference represented as voltage difference across a nueronal cell membrane at rest.

It has a value of -50 and -75mV.

Graphically it represents the flat plateau at the last part of the curve of action potential (check the attachments)

In a normal resting cell after Action potential ;for example nuerone,the intercellular layer has more potassium ions, while the extracellular layer has more Sodium ions .

These ions have special channels called sodium and potassium channels for movement in and out of these ions by active transports.

The movements of these ions across the membranes generated electrical potential difference for action potential.

6 0
3 years ago
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Crazy boy [7]

Answer:

D or the last one

Explanation:

3 0
2 years ago
Explain the husbandry of cattle<br>​
PtichkaEL [24]

Answer:

cattle husbandry is an important aspect of running a beef business to meet animal health and welfare standards, and for optimum animal performance. Essential husbandry practices such as castration and dehorning allow stock to be safely reared and transported to market.

Explanation:

Hope this helps!

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4 0
2 years ago
Which of the following best describes the pattern of microbial death? Which of the following best describes the pattern of micro
____ [38]

Answer:

The cells in a population die at a constant rate

Explanation:

Microbial death is the loss of the ability of microbes to reproduce and survive in an environment. When a given microbial population is given a treatment, the microbial cells die at a constant rate. Microbial death rate  is not dependent on the specie and nor on the antimicrobial agent.

Therefore, the microbial cells in a population does not die at once but die at a constant logarithmic rate; the cells decreases exponentially as nutrients decreases and waste product increases.

For example, if 500,000 microbes are treated or in a nutrient depleted environment and 50,000 microbes is left after 1 minute, by the next minute under the same condition 5,000 microbial cells will be left and this pattern will continue, this explains exponential decrease

8 0
3 years ago
Which of the pathogens could most likely be effectively treated with antibiotics?
olga_2 [115]

Answer:

B

Explanation:

You wont need to go get antibiotics to treat a common cold, just use over the counter meds. Strep and tuberculosis are more contagious and powerful.

4 0
2 years ago
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