1. Exam 3 Review
Created by Educational Technology Network

2. 1 2 3 4 5 10 20 30 40 50

3. Question
What kind of symmetry do echinoderms have when in the larvae stage? How about the adult stage?

4. Answer 1 – 10
Larvae – bilateral Adult – radial

5. Question
What functions do the water vascular system provide the echinoderms?

6. Answer 1 – 20
Feeding and locomotion

7. Question
You see a sea star prying open a bivalve with it’s tube feet and eventually absorbing it. What type of echinoderm feeding is this?

8. Answer 1 – 30
Predatory

9. Question
In the echinoderm water vascular system, there’s one part that’s only found inside the body. What is it?

10. Answer 1 – 40
Ampulla Parts found outside are tube feet, podium, blastopore, etc.

11. Question
What type of echinoderm is a herbivore that grazes on green algae?

12. Answer 1 – 50
Sea urchin So a kelp farmer wouldn’t want this in his/her kelp farm

13. Question
Are all adult deuterostomes bilaterally symmetrical or radially?

14. Answer 2 – 10
Bilaterally

15. Question
In what way are monotremes similar to more ancestral chordate lineages, as opposed to more recently evolved mammals?

16. Answer 2 – 20
Monotremes lay eggs Other mammals bear live young

17. Question
List the three parts of the brain and what they do.

18. Answer 2 – 30
Forebrain – housing the sense of smell Midbrain – associated with vision Hindbrain – responsible for balance and hearing

19. Question
Describe the difference between the shapes of skates and rays vs sharks.

20. Answer 2 – 40
Skates and rays are flat because they float towards the surface and sharks actively swim at the bottom

21. Question
Which group of mammals has a prolonged period of maternal care after leaving the placenta?

22. Answer 2 – 50
Eutheria

23. Question
What did the evolution of the jaw cause?

24. Answer 3 – 10
Predation AKA additional food sources

25. Question
The notochord helps organize the body plan early in development by secreting proteins that induce the formation of what?

26. Answer 3 – 20
Somites Somites are segmented blocks of tissue that later differentiate into vertebrae, ribs, and skeletal muscle

27. Question
What traits have made flying possible in birds?

28. Answer 3 – 30
Keel Hollow bones Endothermy

29. Question
What are the three parts of the internal membrane of an amniotic egg?

30. Answer 3 – 40
Yolk sac (contains nutrients) Amnion (embryo) Allantois (waste) Although albumen is a part of the amniotic egg, it IS NOT an internal membrane!

31. Question
What is the synapomorphy of hominins?

32. Answer 3 – 50
Bipedalism

33. Question
What do we mean when we say that plants are “primary producers”?

34. Answer 4 – 10
They convert solar energy and CO2 into chemical energy (sugars) that support other terrestrial organisms

35. Question
Why do we study land plants and green algae together?

36. Answer 4 – 20
Because the most direct ancestor of the land plants were probably green algae

37. Question
In the alternation of generations, the sporophyte is (haploid or diploid) and produces (spores or gametes)

38. Answer 4 – 30
Sporophyte is diploid and produces spores So gametophyte is haploid produces gametes

39. Question
Say a plant has the following characteristics: flagellates sperm, xylem with tracheids, separate sporophyte dominant and no seeds. What is this plant most closely related to?
Mosses
B. gymnosperms
Flowering plants
ferns

40. Answer 4 – 40
It’s not A because we know nonvascular plants (like mosses) have a dominant gametophyte stage It’s not B or C because those both have seeds So it’s D, ferns. Ferns are seedless and have a dominant sporophyte stage

41. Question
What does homosporous mean?

42. Answer 4 – 50
Having both male and female gametophytes on the same plant

43. Question
How can you tell the difference between tracheids and vessel elements by looking at them?

44. Answer 5 – 10
Vessel elements are shorter and wider than tracheids

45. Question
Did plants that appeared earlier in the fossil record have a more dominant sporophyte or gametophyte stage?

46. Answer 5 – 20
Earlier – gametophyte Later – sporophyte

47. Question
What do adaptations like the cuticle and sporopollenin coat protect against?

48. Answer 5 – 30
Dessication AKA drying out

49. Question
Describe the difference between monocots and dicots.

50. Answer 5 – 40
Monocots: parallel veins in leaves, petals in multiples of 3, vascular tissue scattered Dicots: branching veins, petals in multiples of 4 or 5 and vascular tissue in circular arrangement in stem

51. Question
Which of these would include a capsid?

52. Answer 5 – 50
All of them