Study Goals Exam 2 Week 5

Question 1

How are possession of a nervous system and having muscles both examples of an adaptation?

Answer 1

Allows them to process information quickly and helps with movement

Question 2

Animals have two major types of nervous systems: nerve nets or a central nervous system. What is the link between the type of nervous system an animal possesses and their body symmetry?

Answer 2

Based on movement and interaction with environment
-radial symmetry(nerve nets)
-bilateral symmetry(central nervous system)
-biradial symmetry(nerve nets)

Question 3

The most primitive living animals are sponges or Clade Porifera. Sponges have no body symmetry and no brain. What data support that they are animals?

Answer 3

-Multicellular
-Heterotrophy
-Cellular Organization
-Reproduction
-Response to Stimuli

Question 4

Jellyfish, coral animals, and sea anemones are among the animals that make up Clade Cnidaria. These animals are among the first to have a simple gut — why was a gut such an important adaptation?

Answer 4

-Ingesting food
-Releasing gametes
-Eliminating wastes

Question 5

Cnidarians also have specialized organs called cnidocytes — how are these an adaptation for cnidarians?

Answer 5

Used in prey capture to facilitate viable offspring and enhance their fitness