Question

use the following information to answer question 11.
organisms have different structures for similar functions. some examples of animal structures are found below.
human hands
penguin flippers
shark tails
monkey tails

1. two structures that perform the same function are

a. shark tails and monkey tails.
b. human hands and shark tails.
c. penguin flippers and shark tails.
d. penguin flippers and monkey tails.

1. which of the following statements about all plant and animal cells is true?

a. cells require light for energy.
b. cells are the basic unit of life.
c. cells are dependent on other cells.
d. cells can be produced from non-living matter.

Explanation:

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<reasoning>

Analyze the functions of the structures in Question 11

To find two structures that perform the same function, we must examine what each animal structure is primarily used for:

• Human hands: Used for grasping, holding, manipulating objects, and feeling.
• Penguin flippers: Used as paddles for swimming and propulsion through water.
• Shark tails: Used as a propeller for swimming and steering through water.
• Monkey tails: Used for balance, and in some species, grasping branches (prehensile).

Comparing these functions, both penguin flippers and shark tails are specialized structures adapted for swimming through water. Therefore, they perform the same primary function.

Evaluate the statements about cells in Question 12

We need to identify which statement is universally true for all plant and animal cells based on fundamental biological principles:

• A. Cells require light for energy: Incorrect. While plant cells containing chloroplasts can capture light energy, animal cells and non-photosynthetic plant cells (like root cells) do not use light directly for energy; they rely on chemical energy.
• B. Cells are the basic unit of life: Correct. This is a core tenet of the Cell Theory, which states that all living organisms are composed of cells, and the cell is the basic structural and functional unit of life.
• C. Cells are dependent on other cells: Incorrect. Unicellular organisms consist of a single cell that is completely independent and performs all life functions on its own.
• D. Cells can be produced from non-living matter: Incorrect. Another core tenet of the Cell Theory is that all cells arise only from pre-existing cells, not from non-living matter.

</reasoning>

<answer>

Question 11

<mcq-option>(A) shark tails and monkey tails.</mcq-option>
<mcq-option>(B) human hands and shark tails.</mcq-correct>
<mcq-correct>(C) penguin flippers and shark tails.</mcq-correct>
<mcq-option>(D) penguin flippers and monkey tails.</mcq-option>

Question 12

<mcq-option>(A) Cells require light for energy.</mcq-option>
<mcq-correct>(B) Cells are the basic unit of life.</mcq-correct>
<mcq-option>(C) Cells are dependent on other cells.</mcq-option>
<mcq-option>(D) Cells can be produced from non-living matter.</mcq-option>
</answer>

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Answer:

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Analyze the functions of the structures in Question 11

To find two structures that perform the same function, we must examine what each animal structure is primarily used for:

• Human hands: Used for grasping, holding, manipulating objects, and feeling.
• Penguin flippers: Used as paddles for swimming and propulsion through water.
• Shark tails: Used as a propeller for swimming and steering through water.
• Monkey tails: Used for balance, and in some species, grasping branches (prehensile).

Comparing these functions, both penguin flippers and shark tails are specialized structures adapted for swimming through water. Therefore, they perform the same primary function.

Evaluate the statements about cells in Question 12

We need to identify which statement is universally true for all plant and animal cells based on fundamental biological principles:

• A. Cells require light for energy: Incorrect. While plant cells containing chloroplasts can capture light energy, animal cells and non-photosynthetic plant cells (like root cells) do not use light directly for energy; they rely on chemical energy.
• B. Cells are the basic unit of life: Correct. This is a core tenet of the Cell Theory, which states that all living organisms are composed of cells, and the cell is the basic structural and functional unit of life.
• C. Cells are dependent on other cells: Incorrect. Unicellular organisms consist of a single cell that is completely independent and performs all life functions on its own.
• D. Cells can be produced from non-living matter: Incorrect. Another core tenet of the Cell Theory is that all cells arise only from pre-existing cells, not from non-living matter.

</reasoning>

<answer>

Question 11

<mcq-option>(A) shark tails and monkey tails.</mcq-option>
<mcq-option>(B) human hands and shark tails.</mcq-correct>
<mcq-correct>(C) penguin flippers and shark tails.</mcq-correct>
<mcq-option>(D) penguin flippers and monkey tails.</mcq-option>

Question 12

<mcq-option>(A) Cells require light for energy.</mcq-option>
<mcq-correct>(B) Cells are the basic unit of life.</mcq-correct>
<mcq-option>(C) Cells are dependent on other cells.</mcq-option>
<mcq-option>(D) Cells can be produced from non-living matter.</mcq-option>
</answer>

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