What are the two different characteristics that scientists examine to classify living things/

1 answer:

6 0

One of the characteristics you're looking for is whether the organism is a vertebrate (with a backbone) or an invertebrate (without a backbone).

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Muscle anatomy can be described as a bundle within a bundle within a bundle, explain.

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Answer:

Each compartment contains a bundle of muscle fibers. Each bundle of muscle fiber is called a fasciculus and is surrounded by a layer of connective tissue called the perimysium. Within the fasciculus, each individual muscle cell, called a muscle fiber, is surrounded by connective tissue called the endomysium.

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In carbon dioxide (CO2), there are two oxygen atoms for each carbon atom. Each oxygen atom forms a double bond with carbon, so t

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Explanation:

Carbon has four electrons in its outer most orbit and it can share four more electrons from other atom to complete its valency while oxygen has 6 electrons in its outermost orbit and it can either charge the electron or gain two electrons from other atom.

Therefore in $CO2_$ , the carbon atom shares its two electrons with two electrons of each oxygen atom and forms double bond with it. Thus, total pairs of electron to be shared by the atom of the molecule is two.