Two students fertilize a pair of pea plants. One plant is Rr, and the other is rr. The offspring produced by these two plants all had the dominant trait. The Punnett square showed that there was a 50 percent chance of the offspring carrying rr genes. So, the student assumes that he made an error in determining the genetic makeup of the plants. Do you think the student made an error, or is there another explanation? Explain your answer.

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

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone