Which kingdoms contains organisms that do not have a nucleus or membrane bound organelles?
a. archaea and bacteria
b. archaea and fungi
c. bacteria and plantae
d animalia and plantae

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

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?