Study the wings of the birds in the two images below. Which of the following words applies to only one of the wing structures represented in this pair of species?
A. homologous
B. developmental
C. vestigial
D. inherited
I cannot post the pictures, but they are basically one picture of a running ostrich (I think so) and a hummingbird with its beak in a flower. Because ostriches cannot fly but the hummingbird can, I think the answer is C.
The answers to the whole quick check are
1.D
2.B
3.A
4.C
connexus right ik the answer is c your right
goodluck
YALL ARE ON CONNEXUS, TOO? WOAHHHHH
nooooo i neeed the answers to the unit testttt :(
Guys answers now please
correct.
Carla is right
Thanks I got 4/4 100%. *clara
someone tell me why im here in 2020 and all these comments were made in 1016 an things wtf when were yall here?? oh and btw the answers are
1. Study the wings of the birds in the two images below. Which of the following words applies to only one of the wing structures represented in this pair of species?
incorrect answer A homologous
Incorrect answer B. developmental
Correct answer C. vestigial
Incorrect answer D. inherited
2. Which experimental approach would be the most effective and easiest to clearly determine the evolutionary relationship between these two organisms?
Correct answer A. Sequence the same gene in both species to compare their similarity.
Incorrect answer B. Dissect specimens of both species to look for homologous structures.
Incorrect answer C. Search fossil databases to locate a common ancestor.
Incorrect answer D. Evaluate cells from both species to determine whether they contain enzymes.
3. Which of the following explains why a bone in a bird’s wing is homologous to a bone in a lizard’s front leg?
Incorrect answer A. The bones in the two species provide for the same type of motion.
Incorrect answer B. The bones in the two species are both vestigial structures.
Incorrect answer C. The two species were exposed to the same environmental pressures.
Correct answer D. The two species have a common ancestor.
4. A portion of the amino acid sequence of an enzyme from a worm is shown below:
-Q-Q-Q-N-N-N-C-C
Analyze the same portion of the same enzyme taken from several other organisms. Place them in order from most closely related to the worm to most distantly related to the worm.
-Q-R-Q-N-S-S-C-C- organism X
-Q-Q-Q-N-N-S-C-C- organism Y
-Q-Q-R-N-S-N-C-C- organism Z
Incorrect answer A. Z, Y, X
Correct answer B. Y, Z, X
Incorrect answer C. X, Z, Y
Incorrect answer D. Y, X, Z
yes these are the right answers. stay safe and your welcome.