Which of the following is an example of homologous structures?

a. whale hip bones.
b. embryos of fish and birds both make gill slits.
c. mice and chicken differ by only 25 amino acids when they make hemoglobin protein.
d. rabbits and birds have the same bones in the same order in their forelimbs, even though they use them for different purposes.

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

What will happen if deforestation continue to destroy the green plant on the planet

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit