Week 4.1_Body Plans & Invertebrates

Question 1

Kingdom Animalia:

main characteristics

Answer 1

• Eukaryotic and Multicellular
• No cell walls because structural proteins hold cells together
• Ingestive heterotrophs
• Nervous and muscular tissues

Question 2

Ingestive Heterotrophs

Answer 2

Puts food into the body and digests it, to then absorb nutrients through the wall of the digestive organ. As opposed to Absorptive Heterotrophs.

Question 3

Absorptive Heterotrophs

Answer 3

digests nutrients outside the body and takes them in through the body surface (as opposed to Ingestive Heterotrophs.

Question 4

Reproduction (Kingdom Animalia)

Answer 4

Generally sexual.

Diploid stage dominant.

Question 5

After Fertilization…

Answer 5

Zygote divides (cleavage)
Formation of Bastula
All animals share bastula stage of embryonic development.

Question 6

Bastula

Answer 6

• All animals share bastula stage of embryonic.

- undergoes gastrulation - formation of embryonic tissue layers and a gastrula.

Question 7

Larva

Answer 7

• Many animals have at least one larval stage

- Is sexually immature phonologically distinct from the adult stage.

Question 8

Metamorphosis

Answer 8

example - Butterfly stages: Larva (caterpillar) –> pupa (early and late) –> emerging adult –> adult.

Question 9

Animal body plans

Answer 9

• A set of morphological and developmental traits that have evolved over time.
• Animal diversity can be categorized into a number of major___.
• Some __ have been conserved, while others have changed multiple times over the course of evolution
  
  • Symmetry
  • Tissue
  • Body Cavities
  • Protostome/ deuterostome development