A 6th grader begins to make his sandwich for lunch. There are two loaves of bread in the pantry. When he opens the first loaf, he notices a growth of mold on the first slice of bread. When he opens the second loaf, all of the slices are mold-free. Based on his observations, the student might draw what conclusion regarding the two loaves of bread? A) The first loaf is older than the second loaf.
B) the second loaf was kept at a cooler temperature than the first loaf.
C) The first loaf had a higher starch content allowing for more mold growth.
D) The first loaf had been exposed to fungal spores previously while the second loaf had not.

Approximately 90% of all cases of polycystic kidney disease are inherited in an autosomal dominant fashion. the disease is typically related to mutations to genes (pkd1 and pkd2). pkd genes can be found on chromosome 16. the disease occurs in approximately 1: 800 to 1: 1000 people. here is a hypothetical example. the dominant allele d will cause the development of pkd. the recessive allele is known as d. what genotypes would correspond to suffering from pkd? dd, dd what genotypes would correspond to being normal (not suffering from pkd)? dd consider that 1: 1,000 people have pkd in your population of 325million. consider that pkd is inherited in an autosomal dominant fashion. show you math for all of the following questions: what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is p? what is q? how many people in your population would have pkd?

What is the correct answer for the process of water eroding soil? rills, sheet erosion, gullies sheet erosion, rill, gullies gullies, rills, sheet erosion sheet erosion, gullies, rills

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?