In which way does the circulatory system rely on the skeletal system?
A. Glucose is secreted by compact bone as an energy source for
blood.
B. Spongy bone stores minerals needed by blood cells.
C. Bones provide a source of oxygen to blood.
D. Blood cells are produced in bone marrow.
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A rock climber climbs up the rock wall. How do the bones and muscles in his arm interact to allow him to climb up?
An image is shown of a man climbing the face of a rocky cliff. The man's right arm appears to grasping the cliff rock while the left arm extends to reach a higher level of the cliff.
A. All of the muscles in his arm contract as he climbs up.
B. His arm muscles work in pairs so that one contracts while the
other relaxes as he climbs up.
C. His arm muscles work independently of each other as he climbs
up.
D. All of his arm muscles relax as he climbs up.
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D. Blood cells are produced in bone marrow.
B. His arm muscles work in pairs so that one contracts while the other relaxes as he climbs up.
To determine the correct answer for each question, let's break down the options and explain how to find the answer.
Question 1: In which way does the circulatory system rely on the skeletal system?
To answer this question, we need to understand the roles of the circulatory system and the skeletal system. The circulatory system transports blood, nutrients, oxygen, and waste throughout the body, while the skeletal system provides support, protection, and helps with movement.
A. Glucose is secreted by compact bone as an energy source for blood.
To determine if option A is correct, we can assess if compact bone secretes glucose for the blood. However, compact bone does not secrete glucose. Glucose is obtained from the breakdown of carbohydrates in the digestive system and transported by the circulatory system.
B. Spongy bone stores minerals needed by blood cells.
To determine if option B is correct, we can assess if spongy bone stores minerals needed by blood cells. This statement is accurate. Spongy bone has a network of spaces that can contain bone marrow, which is responsible for producing blood cells and storing minerals.
C. Bones provide a source of oxygen to blood.
To determine if option C is correct, we can assess if bones provide a source of oxygen to the blood. However, bones do not directly provide oxygen to the blood. Oxygen is obtained through respiration in the respiratory system and then transported by the circulatory system.
D. Blood cells are produced in bone marrow.
To determine if option D is correct, we can assess if blood cells are produced in bone marrow. This statement is accurate. Bone marrow, found in certain bones, is responsible for producing red blood cells, white blood cells, and platelets.
Therefore, the correct answer to question 1 is D. Blood cells are produced in bone marrow.
Question 2: How do the bones and muscles in a rock climber's arm interact to allow him to climb up?
To answer this question, we need to understand the roles of bones and muscles in movement.
A. All of the muscles in his arm contract as he climbs up.
To determine if option A is correct, we can assess if all of the muscles in the arm contract simultaneously. However, in a climbing motion, certain muscles contract while others relax to facilitate movement, so this statement is not accurate.
B. His arm muscles work in pairs so that one contracts while the other relaxes as he climbs up.
To determine if option B is correct, we can assess if arm muscles work in pairs during climbing. This statement is accurate. Muscles in the arm work in pairs, with one muscle contracting to move the arm while the opposite muscle relaxes to allow movement.
C. His arm muscles work independently of each other as he climbs up.
To determine if option C is correct, we can assess if arm muscles work independently of each other during climbing. However, this is not accurate. Muscles in the arm work together in a coordinated manner.
D. All of his arm muscles relax as he climbs up.
To determine if option D is correct, we can assess if all arm muscles relax while climbing. However, this is not accurate. Climbing requires the contraction of certain arm muscles to enable movement.
Therefore, the correct answer to question 2 is B. His arm muscles work in pairs so that one contracts while the other relaxes as he climbs up.