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mylen [45]
3 years ago
13

How many Oxygen atoms are in 12CO2 ?

Biology
2 answers:
Citrus2011 [14]3 years ago
6 0

Answer:

2

Explanation:

Mama L [17]3 years ago
5 0

So, from the name, we can say that carbon dioxide has two oxygen atoms. Alternatively, we can use the chemical formula of the molecule. Carbon dioxide has a chemical formula of CO2 .

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Using a key which organism has the largest population? Which organism has the smallest population?
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3 years ago
A pea plant is heterozygous for both seed shape and seed color. S is the allele for the dominant, spherical shape characteristic
forsale [732]

Answer:

The correct answer is -

P1: SSyy

p2: ssYY

Explanation:

In the given question it is given that S is the allele for the dominant trait of spherical shape over s allele of dented shape and similarly Yellow pea seed is dominant over y green seed.

It is given that parent 1 or p1 is true breeding for green spherical shaped seeds which means it has two alleles of the same gene that are SSyy (S for spherical and y for green) and parent 2 or p2 is a pure bred plant with yellow dented shaped seeds that would be ssYY.

6 0
3 years ago
How did the work of Mary Leakey contribute to our knowledge of early hominids and an understanding of human evolution?
Alecsey [184]

Answer:

M.Leakey was a paleoanthropologist of  no formal  university education and British origin. Her major discoveries  were;

1. the proconsul skull

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3, system of classification of discovered stones.

4.Laetoli footprints at Laetoli sites.

However, her most outstanding  discoveries were proconsul skull (  projecting  face with no browridges, and presence of ape-like teeth shapes) and the Laetoli prints. She believed the skull belonged to ancestral Homo habilis, which  could be traced to origin of mankind.

The discovery of Laetoli  prints showed evidences of bipedalism and the origin  of Australopithecus. These prints and  the  skeletons she unearthed  proved that the ancestral of human race actually walked upright, nearly four feet tall in height.Hence she concluded that these prints actually belong to  the Australopithecus. This  brought a paradigm shift in modern understanding of human evolution of prehistoric times and the origin of  mankind,

Her discoveries generally  throw light on the <u>evolution of mankind </u>and  new understanding of <u>genesis of human race</u>

Explanation:

6 0
3 years ago
What holds one strand of DNA together?
notsponge [240]

Answer:

Nucleotides and bases.

Hope this helps!

Brainliest? :)

7 0
3 years ago
What occurs to a DNA strand as its genes are being used
Anni [7]
It is stretched. Hope this helped :)
5 0
3 years ago
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