The animal kingdom (biodiversity)

Question 1

Phylogeny

Answer 1

The first common ancestor was the colonial flagellated protist. That was formed by cells which then become inverted and formed a cavity for capturing and digesting food.

Question 2

What is the new changes that occurred?

Answer 2

Nerve development to coordinate movement

Question 3

Symmetry

Answer 3

Radial: when the body arranges from the central axis: ex, jellyfish
Bilateral: When there is a right side and a left side and theyre mirror images of eachother ex, humans, spiders

Question 4

Protostomes and deuterostomes

Answer 4

Protostomes: the mouth forms before the anus ex. grasshopper, worms

Deuterostomes: anus forms before the mouth ex. humans, fish

Question 5

Animal metabolism

Answer 5

• All animals are heterotopic and use oxygen for cellular respiration
• Have a symbiotic relationship with plants to get food
• Feed off themselves, fungi, plants, protists.

Question 6

Porifera

Answer 6

• Sea sponge
• Invertebrates
• No nerves
• Latest common ancestor is the flagellated protists

Question 7

Cnidaria

Answer 7

Jellyfish coral, animals
- invertebrates
- Have radial symmetry
- have nerves

Question 8

Why are protostomes important to humans

Answer 8

• Cause parasitic diseases
• Compete with humans for food
• spread diseases
• Food sources

Question 9

What deuterostomes consist of

Answer 9

Echindermata and chordata

Question 10

Echindermata

Answer 10

• Invertebrates
• Bilateral symmetry
• Deuterostomes
• they showed radial symmetry in the early stages then as they developed they had formed into bilateral symmetry
• Showed early develops like vertebrates then developed in invertebrates.