Water can easily pass through a cell membrane whereas starch cannot easily pass through a cell membrane.  This is an example of how cell membranes are _______.

Which of these is NOT a function of carbohydrates?

Darker colored mice are easier to see on light colored sand. Therefore, more dark colored mice are eaten by predators. Light colored mice are left behind and have more light colored babies. After many generations, the population of mice are lighter colored on average. The above is an example of _______.

Which of these is NOT part of an amino acid?

What do we call the observation, identification, description, experimental investigation and theoretical explanation of natural phenomena?

If there is a gene that controls keratin development and therefore affects hair length, fingernail growth speed, and toenail growth speed, that gene is an example of _________.

The following is a pedigree for an X-linked recessive disorder. Identify the mistake in this pedigree (1, 2, or 3) and explain why it is incorrect.

Consider the following experiment. You will identify the independent variable, the dependent variable, the control group, and one standardized variable. You will need to copy and paste the potential answers into the blanks. This will be auto-graded and spelling and capitalization count. The experiment is to test whether chickens will lay more eggs if they are fed grain, corn, insects, or a standard chicken feed. Chickens that are all the same age and breed are split into 4 groups and fed one of the 4 diets. The number of eggs each group lays are recorded. Possible answers (7 options – copy and paste from this list): The age of the chickens                            Standard chicken feed                            Insects The number of eggs laid                           Grain                                                         The breed of the chickens The type of feed                                        Corn   The independent variable is [blank1] The dependent variable is [blank2] The control group is [blank3] One standardized variable is [blank4]

Sugar water is a solution where water is the [blank2] and sugar is the [blank3].

An alteration to the nucleotide sequence of a nucleic acid is a _______.