When researchers studied knockout mice with no active copies of the Dvl1 gene, they found these micewere____
a. physically abnormal
b. socially normal
c. not easily startled
d. physically and sociallynormal
e. physically normal, but socially abnormal
ANSWER: e
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Lyme disease is limited almost exclusively to the northeastern United States
Indicate whether the statement is true or false.
The disease osteoporosis involves loss of both mineral and organic components from bones. Which of the following can contribute to the development of osteoporosis?
A. prolonged disuse of muscles B. decline in estrogen following menopause in women C. lack of calcium in the diet D. lack of vitamin D in the diet E. All of the choices for this question are correct
Magnification is achieved in a compound microscope through the initial magnification of the specimen by the ________ lens. This image is then projected to the ________ lens that will further magnify the specimen to form a virtual image received by the eye.
A. ocular; objective B. objective; ocular C. scanning; objective D. ocular; oil immersion
Intramembranous ossification step 2
What will be an ideal response?