Achondroplasia is a type of dwarfism that is caused by the dominant allele (D). The recessive allele (d) results in individuals with normal heights. A man with a Dd genotype and a woman with a dd genotype want to determine the chance that their child will have achondroplasia using the Punnett square shown.
D d
d
Dd
dd
d
Dd
dd
What is the percent chance they will have a child with achondroplasta?
25%
50%
75%
100%

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above