3 Which of the following features of the
leaf enable it to carry out gas exchange
efficiently?
(1) There are numerous air spaces among
spongy mesophyll cells.
(2) There are stomata in the epidermis of
the leaf.
(3) The epidermis is covered by a cuticle.
A (1) and (2) only
B (1) and (3) only
C (2) and (3) only
D (1), (2) and (3)

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

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 !

Based on her survey, which advertising mediums will work best to publicize leslie's in-store specials?