All categories

3 years ago

How can the extinction of a single species affect how the ecosystem functions? give an example?

1 answer:

8 0

It can throw the ecosystem off because species depend on each other so if one is gone it can make everything gone down hill.

You might be interested in

In which horizon of a soil profile is the parent material usually found? A horizon B horizon C horizon R horizon

vampirchik [111]

Horizon B is the answer

8 0

3 years ago

Read 2 more answers

Yeast cells are recovered from a fermentation broth by using a tubular centrifuge. Sixty percent of the cells are recovered at a

Serga [27]

Answer:

$\\ \omega = 5033.22 \ rpm$

Explanation:

Given that:

$R_1 = 0.6\\\\R_2 = 0.95\\\\\omega_1 = 4000 \ rpm\\\\\omega_2 = ???\\\\Q_1 = 12\ l/min\\\\Q_2 = 12\ l/min$

For a continuous centrifuge ; solid recovery R ∝ $\frac{\omega^2}{Q}$

where;

ω = angular velocity of the centrifuge in rpm

Q = flow rate

SO;

$R_1 \alpha \frac{4000^2}{12}$

$R_2 \alpha \frac{\omega^2}{12}$

$\frac{R_1}{R_2} = \frac{4000^2}{12}$ ÷ $\frac{\omega^2 }{12}$

$\frac{R_1}{R_2} = \frac{4000^2}{12} * \frac{12}{\omega^2}$

$\frac{R_1}{R_2} = \frac{4000^2}{\omega^2}\\\\\frac{0.6}{0.95} = \frac{4000^2}{\omega^2}$

${\omega^2} = \frac{4000^2*0.95}{0.6}\\\\\\{\omega} = \sqrt{ \frac{4000^2*0.95}{0.6}}\\\\\\ \omega = 5033.22 \ rpm$

7 0

3 years ago

Which of these would BEST describe the structural difference between magnesium and aluminum?

Verdich [7]

The only true answer here is B. if you have a periodic table, you can see that Magnesium atomic number is 12 while Aluminium's is 13. this means Al has 1 more proton and weights more than magnesium since proton and neutrons contribute to the weights of the atoms.

5 0

3 years ago

Read 2 more answers

How is mitochondrial DNA (mtDNA) typing used in forensic science?

Rudiy27

Explanation:

Mitochondrial DNA typing -

This method is mainly used by forensic scientist who investigate crime scenes.

It involves the use of DNA from an unknown sample to match a DNA collected from a crime scene.

This method is normally used in special scenarios.

These scenarios include:

1) When the DNA is discarded.

2) When the sample does not contain nuclear DNA.

From the description above we can now answer the question as follows:

an unknown nuclear mtDNA is matched to a nuclear mtDNA found at a crime scene.

3 0

3 years ago

What best describes mafic magma

vladimir1956 [14]

Low silica content,thick and fluid,forms dark colored rock.

4 0

3 years ago