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Question 1

List the major evolutionary steps that led to differentiation of the various chordate groups up to the mammals

Answer 1

Skull, Vertebral column, Jaws, Lungs, Lobed fins, Limbs, Amniotic egg, Hair, Milk

Question 2

What is an Amniotic egg

Answer 2

reproductive output is isolated and away from water which protect the offspring

Question 3

what is the Vertebral column and what is it made from

Answer 3

the spine, made from bone or cartilage

Question 4

List the anatomical features that distinguish the mammals from other chordates;

Answer 4

Fur – insulation (important for endotherms)
Four-chambered heart
mammary glands (for nurturing young)
other unique glands (sweat, sebaceous, scent)
highly developed brain

Question 5

Name the three main groups of mammals

Answer 5

monotremes, marsupials, and placental mammals

Question 6

what is the recognisaled trait in monotremes + example

Answer 6

Lay eggs

Question 7

what is the recognisaled traits in marsupials + example

Answer 7

brief development in the uterus
remaining development is supported by milk
most develop within a pouch
- kangeroos, Koala

Question 8

what is the recognisaled trait in placental mammals + example

Answer 8

embryonic development is complete before leaving the uterus
- humans, bos, equine

Question 9

List the four adaptations thought to have been most important in the evolution of humans from other primates

Answer 9

binocular vision - forward facing eye critical for depth perception
grasping hands - precise manoeuvre for fine motor skills
a large brain - high intelligence and communication
Bipedalism - upright stance it benefited them as it freed their hand so carrying either young or tools and held endless possibility for behaviour adaptations.

Question 10

what is Bipedalism

Answer 10

Bipedalism - upright stance it benefited them as it freed their hand so carrying either young or tools and held endless possibility for behaviour adaptations.

Question 11

Numonic for chordata

Answer 11

Tasty, Loins, Cooked

Question 12

Translate:
Tasty Loins Cooked

Answer 12

Tunicates, Lacelets, Chraniates

Question 13

Numonic for Craniates

Answer 13

How Lovley Cocks Rock Criminals Lives And Rectums

Question 14

Numonic for Vertebrates

Answer 14

Little Cocks Ruin Children Lives And Raise Maniacs

Question 15

Translate:
How Lovley Cocks Rock Criminals Lives And Rectums

Answer 15

Hag-fishes, Lumpreys, Cartilaginous Fishes, Ray - Finned Fishes, Coelacanths, Lungfishes, Amphibians, Reptiles

Question 16

Translate:
Little Cocks Ruin Children Lives And Raise Maniacs

Answer 16

Lumpreys, Cartilaginous Fishes, Ray - Finned Fishes, Coelacanths, Lungfishes, Amphibians, Reptiles, Mammals