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3 years ago

Write a list of at least five scientific methods

Biology

2 answers:

Korvikt [17]3 years ago

8 0

Answer:

A mathematical and experimental technique used in the field of science more specifically for constructing and testing a scientific hypothesis is known as a scientific method. The list of five scientific methods are as follows:

a) Asking a question

b) Developing a hypothesis

c) Examining the hypothesis by performing an experiment

d) Assessment of the data and creating a conclusion

e) Interact and associate the findings or the outcomes with the others.

Ganezh [65]3 years ago

5 0

1.) Ask a question or Identify a problem
2.) Research
3.) Form a hypothesis
4.) Experiment
5.) Draw a conclusion

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What is a dna fingerprint and how is it used to differentiate between individuals in a population?

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4 years ago

How long ago are prokaryotes believed to have evolved on earth? a. 3.5 million years b. 1.5 billion years c. 2 billion years d.

Anni [7]

The correct answer is d. 3.5 billion years.

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4 0

3 years ago

Read 2 more answers

Why are shape, weight, mass, size,<br> and texture NOT considered properties?

goldenfox [79]

Answer:

Density is an intensive property. This means that regardless of the object's shape, size, or quantity, the density of that substance will always be the same. ... It is because density in an intensive property of matter. So they are not considered properties.

Explanation:

8 0

3 years ago

In 1985 a biologist counted 750 pine trees in a 250 hectare forest. Using similar counting techniques, the biologist counted 1,2

Alisiya [41]

Answer:

Suppose that we have a given function f(x)

The average rate of change of the function between two values x₁ and x₂ is given by:

$r = \frac{f(x_2) - f(x_1)}{x_2 - x_1}$

a) We want to find the average (rate) of change on the size of population from 1985 to 1995.

We have that:

f(1985) = 750

f(1995) = 1500

Then we have:

$r = \frac{1500 - 750}{1995 - 1985} = 750/10 = 75$

This means that the population of trees increases, in average, at a rate of 75 trees per year.

b) What is the density of trees each year that they were counted?

This will be equal to the quotient between the number of trees and the area.

1985: number of trees = 750 pines

area = 250 ha

Then the density is:

D(1985) = (750 pines)/(250 ha) = 3 pines/ha

So 1985, there were 3 pines per hectare.

1990: number of trees = 1250 pines

area = 250 ha

Then the density is:

D(1990) = (1250 pines)/(250 ha) = 5 pines/ha

1995: number of trees = 1500 pines

area = 250 ha

The density is:

D(1995) = (1500 pines)/(250 ha) = 6 pines/ha

3) now we want to get the average change between 1985 and 1995 in the density, this will be:

$r = \frac{D(1995) - D(1885)}{1995 - 1985} = \frac{6 pines/ha - 3pines/ha}{10} = 0.3 pines/ha$

So, on average, each year the number of pines per hectare increases by 0.3

7 0

3 years ago