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Fantom [35]
3 years ago
11

Why does the land around a once active coal mine remain barren?

Biology
1 answer:
Temka [501]3 years ago
8 0

Hello!!

The answer is A. Toxic nitrous oxides were releassed into the soil killing all plants

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Now it is time to do some word problems! In pea plants purple flower color is dominant over white flower color. A pea plant that
soldier1979 [14.2K]

Answer:

All the offsprings would be heterozygous purple colored flower

Explanation:

Given

Purple color flower is dominant over white color flower

Let the allele for purple color of flower be represented by "P"

and the allele for white color flower be represented by "p"

A pea plant that is homozygous purple-flowered is crossed with a pea plant that is white-flowered.

Genotype of homozygous purple-flower is "PP"

and Genotype of homozygous white-flower is "pp"

Cross between PP and pp produce the following offspring

PP * pp

Pp, Pp , Pp , Pp

All the offsprings would be heterozygous purple colored flower

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3 years ago
Name four abiotic factors found in a prairie ecosystem? Please help me fast as you can...
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Four abiotic factors in a prairie ecosystem would be soil, climate/temperature, water, and oxygen. Hope this helps!
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3 years ago
Passive transport moves molecules_____their concentration gradient
mariarad [96]
Down the concentration
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miss Akunina [59]
Blue-green algae aka Cyanobacteria
8 0
3 years ago
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The amount of fluid displaced by an object equals the __________ of the object.
umka2103 [35]

Answer:

Volume

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This is a Physics question, and that means we can definitely do some experiment with this.

See Archimedes' law of buoyancy.

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