Members of the cactus family in North and South America and of the spurge family in Africa are very similar in structure. In both cases the plants live in desert environments. They have a succulent stem that stores water, no leaves (reduces water loss), stems that can perform photosynthesis, and spines that protect the plant from being eaten. The spines are formed from different parts of the plant in the two families. The two plant families are not closely related. The similarities between the two families is due to ______ which is caused by ________.
Members of the cactus family in North and South America and of the spurge family in Africa are very similar in structure. In both cases the plants live in desert environments. They have a succulent stem that stores water, no leaves (reduces water loss), stems that can perform photosynthesis, and spines that protect the plant from being eaten. The spines are formed from different parts of the plant in the two families. The two plant families are not closely related. The similarities between the two families is due to ______ which is caused by ________.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Members of the cactus family in North and South America and of the spurge family in Africa are very similar in structure. In both cases the plants live in desert environments. They have a succulent stem that stores water, no leaves (reduces water loss), stems that can perform photosynthesis, and spines that protect the plant from being eaten. The spines are formed from different parts of the plant in the two families. The two plant families are not closely related.
The similarities between the two families is due to ______ which is caused by ________.
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