Complex organisms tend to have a ________ nervous system with sense organs concentrated in the head
Fill in the blank(s) with correct word
centralized
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Which of the following contain enzymes used
in the breakdown of glucose and generation of ATP? a. Golgi bodies b. ribosomes c. mitochondria d. lysosomes e. endoplasmic reticula
Active transport can only move a substance with a concentration gradient
1.True 2.False
All of the following are key elements of evolution EXCEPT which one?
A) Organisms have changed from their ancestors over time. B) Change has been accomplished with a purpose and a plan. C) Change is unpredictable and determined by natural processes. D) Change depends on alterations in the DNA.
The two strands of a double helix of DNA are linked by what kind of bond?
A) sugar-phosphate linkages B) base-phosphate linkages C) hydrogen bonds between sugars and phosphates D) hydrogen bonds between bases E) sugar-base linkages