AP BIOLOGY

ANIMAL REPRODUCTION AND DEVELOPMENT

SEXUAL REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Juan wants to know the answer to the question, “Does soil type affect how tall bean plants grow?” Which investigation would best help Juan answer the question?
A
Juan designs an experiment in which bean plant seeds were placed in two different soil types. He then measures the growth of each bean plant daily.
B
Juan goes to Ms. McDonald’s farm to observe and measure the growth of bean plants in soil for a month.
C
Juan creates a model of a bean plant and observes its growth in different soil types daily for a month.
D
Juan decides to observe bean plants in the wild and measure their growth daily.
Explanation: 

Detailed explanation-1: -Scientific Question. A scientific question is a question that may lead to a hypothesis and help us in. answering (or figuring out) the reason for some observation. ● A solid scientific question must be testable and measurable. ○ You can complete an experiment in order to answer it.

Detailed explanation-2: -Why would Ellie’s investigation be valid? It includes her opinion. It is based on evidence.

Detailed explanation-3: -Will Raul’s experimental set-up produce valid results? No; Raul doesn’t have a testable hypothesis so the experiment is pointless.

There is 1 question to complete.