Astudent sets up an experiment with two plants that are each exactly five inches tall. one is given fertilizer and the other is not. after 4 weeks their height is measured again. what is wrong with this experiment? a) there is no control for this experiment. b) plants grow slowly. the time frame is too short. c) the plants need to be taller to get accurate measurements. d) plants naturally grow at different rates. more trials need to be done.

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.

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake