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solniwko [45]
3 years ago
13

In the modern classification system birds are in a separate _______ from reptiles, but fossil evidence shows they have _________

__. A) phylum; amniotic eggs B) class; a common ancestor C) genus; the same DNA. D) class; similar bone structure
Biology
2 answers:
aliina [53]3 years ago
6 0

B) class; a common ancestor
VARVARA [1.3K]3 years ago
6 0

B) class; a common ancestor

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Carbon dioxide is used by plankton during photosynthesis to make organic molecules containing ( lead / carbon / argon / chlorine
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Answer:

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Explanation:

Photosynthesis is a process carried out by the cells of autotrophic organisms in order to synthesize their own food in form of sugars (glucose). As rightly stated in this question, Carbon dioxide (CO2) is a major ingredient for this process to occur. Inorganic CO2 enters an organism like plankton and is used to make organic molecules.

The organic molecules produced via the photosynthetic process are in form of sugar (glucose) i.e. C6H12O6 whose principal elemental component is CARBON. In other words, the organic molecules contain carbon in their structure, got from the CO2 source.

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An increase in venous return will _______.
s2008m [1.1K]

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Increase EDV and therefore, increase stroke volume.

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