(a) What evidence is there that competition with gray squirrels is responsible for the decline in red squirrels in the UK: _____ (b) Is the evidence conclusive? If not why not? _____

Ticks are obligate blood feeders and must obtain blood to pass from one life stage to the next. Ticks attach to the outside of hosts (in this case a cat) where they suck blood and fluids and cause irritation. (a) ldentify this type of interaction: _____ (b) Describe how each species is affected (benefits/harmed/no effect): _____ (c) How would the tick population be affected if the host became rare? _____

(a) What is interspecific competition? Describe an example: _____ (b) Why is interspecific competition usually less intense than intraspecific competition? _____ (c) Why is interspecific competition generally less effective at limiting population size than intraspecific competition?

(a) What evidence is there that competition with gray squirrels is responsible for the decline in red squirrels in the UK:____________.

(b) Is the evidence conclusive? If not why not? ___________________.

Suppose you are collecting evidence at a burglary crime scene. Make a list of the different types of evidence you might collect. Circle evidence that could be tested using DNA fingerprinting.

What evidence did accusers offer as proof that Susanna Martin was a witch? What did Calef think about such evidence? If the evidence was not the work of the devil or witches, what did it indicate?

What is evidence?

A vegetable garden $50 \mathrm{ft}$ wide is to be grown between two buildings, which are $500 \mathrm{ft}$ apart along an east-west line. If the buildings are $200 \mathrm{ft}$ and $350 \mathrm{ft}$ tall, where should the garden be placed in order to receive the maximum number of hours of sunlight exposure? (Hint: Determine the value of $x$ in the accompanying figure that maximizes sunlight exposure for the garden.)

Correct collection of evidence requires which of the following? a) documenting the location where the evidence was found b) correct packaging of evidence c) maintaining proper chain of custody d) all of the above

Identify three pieces of evidence for seafloor spreading. Briefly explain how each is evidence for seafloor spreading.

List characteristics of teeth that would enable them to be used as individual evidence as opposed to class evidence.

The claim we weigh evidence against in a significance test is called the ________ hypothesis. The claim we are trying to find evidence for is the ___________hypothesis.

(a) What evidence suggests that Walter Mitty is a round character? (b) What evidence shows Mrs. Mitty is a flat character?

How would a three-hour time exposure photograph of stars in the northern sky appear if Earth did not rotate?

(1)

(2)

(3)

(4)