100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
D&E Biology Chapter 33 quizzes and answers $13.49   Add to cart

Exam (elaborations)

D&E Biology Chapter 33 quizzes and answers

 3 views  0 purchase
  • Course
  • Biology
  • Institution
  • Biology

Part A The animal phylum most like the protists that gave rise to the animal kingdom is _____. - Porifera Correct: Evidence that supports this includes the lack of true tissue in sponges and the close similarity between choanocytes and choanoflagellates. Part A Which of the following is a c...

[Show more]

Preview 2 out of 8  pages

  • August 1, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Biology
  • Biology
avatar-seller
CleanA
D&E Biology Chapter 33 quizzes and answers Part A The animal phylum most like the protists that gave rise to the animal kingdom is _____. - Porifera Correct: Evidence that supports this includes the lack of true tissue in sponges and the close similarity between choanocytes and choanoflagellates. Part A Which of the following is a characteristic of cnidarians? - gastrovascular cavity Correct: The gastrovascular cavity, characterized by a single opening, is the digestive compartment of cnidarians. Part A Which of the following is a hypothesis the researchers were testing in this study? - Through evolution, periwinkle populations with a history of predation by crabs have become less vulnerable to crab predation. Correct: The researchers' hypothesis was that southern periwinkle populations with a history of predation by crabs have become less vulnerable to crab predation through evolution. Part B Identify an independent variable in this experiment. - the source of the periwinkles (northern or southern sites in the Gulf of Maine) Correct: One of the independent variables was the source of the periwinkle population --northern or southern sites in the Gulf of Maine. The source of the crab population was also an independent variable. Part C Identify the dependent variable in this experiment. - the number of periwinkles killed by crabs Correct: The dependent variable was the number of northern and southern periwinkles killed by crabs. Part D Why did the researchers set up four treatments? - to test whether the origin (northern site or southern site) of the crabs and periwinkles affected their interactions Part E Why did the researchers present unshelled northern and southern periwinkles to northern and southern crabs in the second experiment? - to test if either population of periwinkles was unpalatable to either population of crabs Correct: The researchers wanted to rule out the possibility that northern crabs didn't like the taste of southern periwinkles or that southern crabs didn't like the taste of northern periwinkles. This experiment allowed researchers to conclude that differe nces in numbers of southern and northern periwinkles killed were due to differing vulnerability to crab predation, not due to crab preferences. Part F

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller CleanA. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $13.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79223 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$13.49
  • (0)
  Add to cart