Biology College

What is the average for the following set of measurements?
3.1 ml, 2.7 mL, 4.6 mL, 1.9 mL, 8.7 ml?

Answers

Answer 1
3.1+2.7+4.6+1.9+8.7=21
21:5=4.2
The average is 4.2
Answer 2

Answer:

The average is 4.2

Explanation:

Related Questions

which of the following hypotheses can be tested with experiments? select all that apply

1.) a diet low in sugar reduces the risk for heart disease
2.) coffee increases subject performance on intelligence tests
3.) people that brush their teeth live longer than those who don't brush their teeth
4.) scientists will find a cure for cancer before the year 2020

I know that 4 isn't the answer so I selected the other three and it said I was wrong. isn't a hypotheses something that can be experimented on so can't all of the three have experiments If I'm making sense ​

Answers

I would say 1 and 2 then

Options 1 and 2 can be tested through experimental procedures.

A hypothesis is an explanation for a given phenomenon from the real world.

A testable hypothesis is a plausible explanation that can be proved (or rejected) by an experimental and/or observational procedure.

A well-designed experiment should have into account the following characteristics: randomization, replication and local control.

Manipulation indicates that one variable (dependent variable) is purposefully changed by the scientist in the environment.

The controls must be used to prevent non-controlled factors which might be influencing the outcomes of the experiment.

Option 3: it is not possible to carry out an experiment to test this hypothesis.

Option 4: it is not a hypothesis and a false anachronic statement (cancer is a multifactorial disease that currently still has not been cured).

In conclusion, only Options 1 and 2 can be tested through experimental procedures.

Learn more in:

https://brainly.com/question/17494171

Here can you help me on this?

Answers

Answer:

Selective breeding

Selective breeding is when u choose 2 organisms with certain desirable characteristics and bread then together

Animals are selectively bread 4 many reasons

- To have a higher yield (meat, milk, eggs)

- Be able to run faster

Hownis the total magnification of a cell calculated

Answers

Answer:

The total magnification of a cell is calculated by multiplying the magnification of the ocular lens (also known as eyepiece lens) and the objective lens.

Why is the temperature at the extremities, such as the fingers,
sometimes colder than the core body temperature?
O A. So that less energy is lost in cold environments.
OB. The fingers need to be colder to protect the durability of the nails.
C. The fingers do not have thermoregulation mechanisms.
D. So that more energy is lost in cold environments.

Answers

Answer:

A. so that less energy is lost in cold environments.

Explanation:

When it’s cold outside, your body makes sure to keep the blood flowing to your core and vital organs to keep them warm. This can change the amount of blood flow to your hands and feet, making them feel cold. This is normal. The blood vessels in your hands and feet constrict (spasm) when it’s cold, to prevent heat loss from your core

how does the kidney help with excretion

Answers

Answer:

kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine

Give three reasons why you might have a situation in which bacterial colonies were found on the first section of a streak plate, but not on sections two and three.

Answers

Hi. You have not shown the sections this question refers to, nor have you provided more information about those sections. This makes it difficult for your question to be answered. However, I will try to help you as best I can.

Generally speaking, we can consider that there was no growth of bacterial colonies in sections 2 and 3, because, for some reason, the bacteria was not inoculated in sections 2 and 3. What could also have happened, is that the bacteria in the sections 2 and 3 were eliminated, but the bacteria from section 1 managed to survive and form colonies.

Another possibility is that after inoculating the bacteria in section 1, you didn't handle the bacteria correctly in the other sections, leaving that bacteria to dry out and die.

Finally, the culture media in sections 2 and 3 could be inappropriate for bacteria to develop and form colonies.

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