The simplest eye structure, which is able to perceive light but not form an image, is called a(n) ____
a. compound eye
b. single-lens eye
c. ocellus
d. ommatidia
e. photoreceptor
ANSWER: c
You might also like to view...
________ used X-ray diffraction to deduce the helical shape of DNA.
A) Linus Pauling B) James Watson and Francis Crick C) Martha Chase D) Rosalind Franklin
Which of the following is not an extraembryonic membrane?
a. yolk sac b. somite c. chorion d. amnion e. allantois
Transfer RNA(tRNA) functions in the process of ________________.
A. DNA replication. B. transcription. C. translation. D. none of these.
Which statement illustrates Lamarck's theory on the mechanism of evolution?
A) A man who routinely shaves the hair off his head will have sons who become bald. B) Fish with coloration that matches the river bottom they inhabit will survive to reproduce. C) Plants that can survive in less light will become the dominant species in shaded areas. D) Giraffes with longer necks survived and reproduced faster because they could reach a better food source. E) Birds with bright colors will attract more mates and pass on the colorful plumage.