Taxis is defined as
A. the learning of a behavior that is associated with consequences of the behavior.
B. a movement towards or away from a stimulus.
C. a motor response initiated by a stimulus, continuing to completion of the response.
D. an instantaneous, automatic response to a stimulus.
E. rapid learning of behaviors by an animal during a restricted time in the animal's life.
B. a movement towards or away from a stimulus.
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Match the following items with the correct phrases.
_______1. endoplasmic reticulum _______2. capsids _______3. chromosomes _______4. plastids _______5. cilia _______6. mitochondria a. found in both procaryotes and eucaryotes b. found only in procaryotes c. found only in eucaryotes d. not found in either procaryotes or eucaryotes
A fish in which a sharp spine is associated with the dorsal fins is the:
a. spiny dogfish. b. sea bass. c. hagfish. d. sea horse. e. goldfish.
Which of the following hormones is directly responsible for the maintenance of the uterine lining during pregnancy in mammals?
A. Melatonin B. Oxytocin C. Progesterone D. Prolactin E. FSH (follicle-stimulating hormone)
A polysaccharide that is used for storing energy in human muscle and liver cells is _____.
A. glucose B. glycogen C. starch D. chitin E. cellulose