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3 years ago

What do you think the word biodiversity means? Why is biodiversity important for the stability of ecosystems?

2 answers:

6 0

Biodiversity generally refers to the variety and variability of life on Earth. According to the United Nations Environment Program, biodiversity typically measures variation at the genetic, species, and ecosystem level.

elena55 [62]3 years ago

4 0

Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.

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The stained Gram-positive bacteria appear _____ under the microscope.

jolli1 [7]

After crystal violet staining, the Gram-positive bacteria may appear dark blue or violet. The cell wall of gram positive bacteria have thick peptidoglycan layer, thus it retains the crystal violet stain compared to gram negative bacteria.

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3 years ago

Explain the cellular functions that occur when antibiotics attack a bacteria cell.

Alex73 [517]

That would be A.

Most antibiotics that are used for gram positive bacteria target the peptidoglycan cell wall, but the ones for gram negative bacteria are more advanced and specific and target the cell membrane and alter the cell’s function(processes of proteins and dna/gene expression).

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3 years ago

Which statements best describe gases? Check all that apply. The atoms in a gas move at high speeds. The atoms in a gas often get

Inga [223]

Answer: The atoms in a gas move at high speed.

The atoms in a gas spread in all directions.

A gas is a state of matter in, which atoms remains in a constant motion, they do not stick together. They are free and can move in all directions. The gas molecules expands to fill the available space. Hence, they can change shape and volume. The gas atoms being in a molecular state moves fast in high speed to break away from each other, to remain in a free state.

8 0

3 years ago

Read 2 more answers

Please help!! Can you figure out the modern spreading rate of the Mid- Atlantic ridge? Use that line to figure out how many kilo

bija089 [108]

Answer:

R = 16mm/y

Explanation:

Modern Spreading Rate (R) = distance the seafloor moved in km (d) / age in million years (t)

R = d/t

To calculate it in millimeters per year we need to convert it:

1 km = 1000 m

1 m = 100 cm

1cm = 10mm

1 km = 1,000,000 mm

The problem states that in 150 million years, there is a distance of 2400 km.

if 1 km ------- 1,000,000 mm

2400 km-------X = 2400,000,000 mm

If 1 million years -------1,000,000 years

150 my----X = 150,000,000 years

R = d/t

R = 2400,000,000 mm/150,000,000 y.

R = 16mm/y

4 0

2 years ago

What is community ecosystem individual and population from least to greatest?

Natasha_Volkova [10]

Individual , population , community then ecosystem.

5 0

3 years ago