Stimulus recognition is often carried out by specialized sensory receptors called ____ detectors
Fill in the blank with the appropriate word.
feature
You might also like to view...
The nucleoli are found within the nucleus and synthesize ____
a. chromatin b. mRNA c. ribosomal subunits d. genes e. proteins
You are investigating the life history of a previously unknown species of spider, when you discover an unusual fact; it seems that these spiders carry their fertilized eggs on their abdomen until they mature, at which point their offspring hatch, and devour their parent. Which term best describes this species’ reproductive strategy?
a. many offspring b. few offspring c. semelparity d. iteroparity
The forelimbs of Tiktaalik have bones, but are fringed with fins instead of toes (see figure). Which of the following is the best explanation for this observation?
A. This species was an evolutionary dead end, which is why no modern species have both bones and fins on their forelimbs.
B. This is a common ancestor to all of the modern fish species that have bones in their forelimbs.
C. This is a transitional fossil, and the species has not yet lost its fins.
D. This is a common ancestor to all of the modern amphibian species that have fins on their forelimb.
E. This is a transitional fossil, and the species has not yet lost its arm bones.
In various experiments that recreated conditions on the early Earth, molecules such as amino acids,
glucose and ribose were produced from a. clay. b. ether. c. formaldehyde. d. alcohols. e. ATP.