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aksik [14]
3 years ago
14

Circle the word that best completes the statement about cell theory.

Biology
1 answer:
e-lub [12.9K]3 years ago
4 0

Question reformatted:

Circle the word that best completes the statement about cell theory.

6. The cell theory states that:

i. All organisms are made of <em>organelles </em>/ <em>cells</em>.

ii. All existing cells are produced by other <em>living </em>/ <em>dead </em>cells.

iii. The <em>atom </em>/ <em>cell </em>is the most basic unit of life.

7. Cell theory is one of the great unifying theories of <em>biology </em>/ <em>chemistry</em>

Answer:

6. The cell theory states that:

i. All organisms are made of <em>cells</em>.

ii. All existing cells are produced by other <em>living </em>cells.

iii. The <em>cell </em>is the most basic unit of life.

7. Cell theory is one of the great unifying theories of <em>biology </em>

Explanation:

Cell theory is one of the central theories of biology and is universally accepted. It states that all organisms are cellular - that is they are made of cells. It also states that all living things come from other living cells (not spontaneously, or from dead cells). The cell is the most basic unit of life, organisms can be unicellular, but no living thing is 'less' than that.

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All mollusks have a "foot" that they use to travel. This foot is homologous although it may not appear to be immediately - close inspection demonstrates that in terms of form and function, gastropods, cephalopods, and bivalves share this homologous structure in common.
Mammals share the homologous structure of the vertebrae in common. For instance, in spite of its height, the giraffe has the very same number of neck bones (seven) as a giant whale and a tiny human being.
Human beings, dogs, and cats all have similar pelvises, which are homologous structures to a vestigial pair of bones that snakes have. These bones are the last remains of a pelvis, with no legs to attach.
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The genetic code among all living things is homologous - extremely similar although other genetic codes exist. This suggests a common ancestor.
Wasps and bees have stingers that they can use when they feel they are in danger. However, this is a homologous structure to the ovipositor of other organisms - the feature that allows these organisms to lay eggs.
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