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3 years ago

Which is a question which science cannot answer?

Biology

2 answers:

SVETLANKA909090 [29]3 years ago

5 0

Answer:

When the next earthquake will happen

Explanation:

science cannot predict exactly when something like that will happen.

Ludmilka [50]3 years ago

4 0

I don’t really know about science but volcanoes erupt because Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Since it is lighter than the solid rock around it, magma rises and collects in magma chambers.

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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

How can we determine if a bacterial cell has been genetically transformed?

Zielflug [23.3K]

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4 years ago

The logistic model effectively has two components: the original exponential term (rN) and a second term (1 − N/K). What is the f

makvit [3.9K]

<h2>Exponential Growth of Population</h2>

Explanation:

The term 1 − N/K capacities to decrease population growth as the populace size methodologies the carrying capacity.
Restricting Factors to Population Growth. For a population to be sound, factors, for example,<em> nourishment, supplements, water and space, must be accessible. </em>
Restricting variables incorporate a low nourishment supply and absence of space. <em>Restricting components can bring down birth rates, increment demise rates, or lead to migration. </em>
A population for every capita development rate gets littler and littler as populace size methodologies a most extreme forced by restricted assets in the earth, known as the conveying limit ( K).
Recollect that the first exponential equation was y = abx.
The new development and rot works, the b esteem (development factor) has been supplanted either by (1 + r) or by (1 - r). The <em>development "rate" (r) is resolved as b = 1 + r.</em>

4 0

4 years ago

How are organisms in the domain archaea different from those in the domain eukarya

Ganezh [65]

Answer:

Domain archaea holds microorganisms that is bacteria that has cell wall consist up of peptidoglycan. The Eukarya differ from the Archea and Bacteria in that their cells are eukaryotic, meaning they consist up of a "membrane enclosed nucleus" and "other membrane enclosed organelles".

Explanation:

4 0

3 years ago

Which of the following has no acceleration?

Dafna11 [192]

A person running once a track at a constant speed because there speed would be constant or staying the same. therefore no acceleration would be put into action.

8 0

3 years ago