PLS HELP ASAP I MARK BRAINLEST Question 4
10 pts
Which statement is true about ALL eukaryotes?
A. They reproduce asexually.
B. They have nuclei in their cells.
C. They are animals.
D. They are plants.

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Can someone me with these questions plz.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '