ANSWERS 2025 LATEST VERSION ALL YOU NEED TO PASS
BIOLOGY FINAL EXAM//ALREADY GRADED A+
The evolution of animal species has been prolific (the estimates go into the million and tens of
millions). Much of this diversity is a result of the evolution of novel ways to _____.
A) reproduce
B) arrange cells into tissues
C) sense, feed, and move
D) form an embryo and establish a basic body plan - ANSWER-C
The last common ancestor of all animals was probably a
A) unicellular chytrid
B) multicellular algae
C) multicellular fungus
D) flagellated protist - ANSWER-D
A student encounters an animal embryo at the eight-cell stage. It spontaneously separates into 8
individual cells that do NOT produce viable embryos. IF it did not fall apart this embryo would have
potentially developed into a(n) _____.
A) turtle
B) earthworm
C) sea star
D) sea urchin - ANSWER-B
Which of the following statements concerning animal taxomony is (are) true?
1. Animals are more closely related to plants than to fungi
2. Animals only reproduce sexually
3. Animals are thought to have evolved from flagellated protists similar to modern choanoflagellates
A) 1 and 2
, B) 1 and 3
C) 3 only
D) 1 only - ANSWER-C
Sponges differ from other animals based on the absence of
A) a body cavity
B) mesoderm
C) true tissues
D) complete digestive tract - ANSWER-A
Which of the following is/are true statements about animals?
1. All animals are multicellular
2. All animals undergo metamorphosis
3. All animals lack cell walls
4. All animals share the unique family of Hox genes
A) 1 and 4
B) 1, 2, and 3
C) 1, 3, and 4
D) All are correct - ANSWER-C
One should expect to find cilia associated with the feeding apparatus of ____.
A) annelids
B) coral animals
C) tapeworms
D) sponges - ANSWER-D
In terms of food capture, which sponge cell is most similar to the cnidocyte of a cnidarian?
A) amoebocyte
B) chanocyte