Experiment 1: Huntington's disease is believed to be a dominant genetic disorder that causes brain damage over time. Test results from children of individuals that were known to be heterozygous for Huntington's disease were tested for the disease. The following observed results were collected:
Huntington's Disease (Hh) Normal (hh)
346
402
Perform a chi-square test to determine whether these results support that Huntington's is a dominant disease.

Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.

Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers

Which of the following is an abiotic factor in an ecosystem? a. bacteriab. airc. niched. grass(abiotic=non-living) me !