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vichka [17]
3 years ago
10

How many different species of living things do you think exist on earth today

Biology
2 answers:
Kruka [31]3 years ago
6 0
The number of species on Earth tagged at 8.7 million as of 2011.
Ronch [10]3 years ago
6 0
The question states how
many you THINK so put your thinking
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What is the maximum number of alleles that a given human adult (with 23 pairs of chromosomes) can have at any particular genetic
Sphinxa [80]

Answer:

b. 2

Explanation:

Humans have typically 23 pairs of chromosomes. Each pair is composed of a chromosome from the mother and another from the father. A specific locus in a chromosome is composed of two alleles. An allele inherited from the mother and the other allele inherited from the father.

4 0
3 years ago
Why do producers remove carbon from the atmosphere?
ira [324]
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3 years ago
What gas is a reactant in cellular respiration
pochemuha

Answer:

Explanation: Although cellular respiration has multiple parts, the basic chemical equation is:

Answer: Oxygen

Explanation: Oxygen + Glucose (sugar) = Carbon Dioxide + Water + Energy (ATP)

This equation is often broken into two parts, the reactants and the products. Reactants are the molecules that begin cellular respiration, in this case that would be oxygen and glucose. Products are what forms during cellular respiration. Here, the products are carbon dioxide, water, and energy. As the focus of this lesson is on the reactants of cellular respiration, oxygen and glucose, let's take a look at those.

Reactants--

The first reactant in the equation for cellular respiration is oxygen. Most people are familiar with oxygen since it's the primary gas needed for sustaining our lives. We obtain oxygen by simply breathing. Oxygen is highly reactive and therefore perfectly suited for driving chemical reactions such as cellular respiration. However, people may be less familiar with the second reactant in our respiration equation: glucose.

4 0
2 years ago
Please help!What are the roles of a decomposer? Check all that apply.
9966 [12]

Answer:

decomposer decomposes :) so it breaks down the organic matter into simpler compounds. it's very important process because complex compounds that build living organisms are not absorbable for other organisms, thus chemical cycling wouldn't be possible and the whole ecosystem would shut down. dead plants and animals would be everywhere and new organisms couldn't be born/grown. mold breaks down dead organic matter like dead trees. as the result simple compounds come into existence and can be assimilated by plants

4 0
3 years ago
Read 2 more answers
The human GM-CSF gene and the mouse GM-CSF gene vary by more than 60% in their DNA sequence. However, when scientists place the
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Explanation:

I hope this helps

8 0
2 years ago
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