Evolution

Question 1

What are special bipeds?

Answer 1

Hoping and moving on 2 or 4 legs

Question 2

What did hip based and knee based retraction do ?

Answer 2

Helped with leg movement and muscle on the thigh drove the action of the knee

Question 3

What is a bird?

Answer 3

All descendents of the most recent common ancestor of passer and archaeopteryx

Question 4

When was the archaeopteryx?

Answer 4

Decent from the bird discovered in 1860

Question 5

When was dinosaur/ bird evolution discovered?

Answer 5

China and rocks were turned upside down. Found other bird relatives

Question 6

What was the first feather used for?

Answer 6

For thermal regulation and display

Question 7

What do alligators have in common with chickens?

Answer 7

Alligator femur goes backward to change centre of mass

Question 8

What happened to bird hipped dinosaurs?

Answer 8

They went extinct

Question 9

What did birds evolve from after bird hipped dinosaurs?

Answer 9

Lizard hipped dinosaurs

Question 10

What was the main difference between birds and dinosaurs?

Answer 10

The tail

Question 11

What did feathers allow?

Answer 11

Allowed controlled falling

Question 12

What was the first flight?

Answer 12

Gliding

Question 13

During ground up what did feather allow?

Answer 13

Feathers allowed more lift when jumping. Can generate downward force as well as uplift which enabled running up steep banks

Question 14

Where did the beginning of life emerge and why?

Answer 14

The ocean

Question 15

What do locomotion systems require?

Answer 15

Genes, cells, networks, environment changes

Question 16

What was the order of the evolution of vertebrates?

Answer 16

Water then land then air

Question 17

Why do move environment?

Answer 17

Expoilt resources, competition, predator avoidance and environmental

Question 18

What obstacles must they overcome to live in different environment?

Answer 18

Lungs, legs and eyes

Question 19

What was the major transition in mammals?

Answer 19

Whales. Limb reduction, nares move back and eyes move forward and tail fins

Question 20

What are the hippo aquatic adaptations?

Answer 20

Closable nostrils, eyes and ears high on the head and eyes covered by clear membrane

Question 21

What is baleen?

Answer 21

A soft tissue in the whales mouth for filter feeding

Question 22

Where was baleen originates from?

Answer 22

Gums due to nerve innervation

Question 23

What is pinniped evolution?

Answer 23

Seal evolution

Question 24

What was the first pinniped?

Answer 24

The puijila darwin

Question 25

What did the puijila have?

Answer 25

Long tail, hind/forelimbs, deltopectoral crest indicated aquatic lifestyle

Question 26

What was the water opposum?

Answer 26

They were a mammal that has webbed feet, dense water repellent fur and a marsupial pouch

Question 27

What did crocodiles evolve from?

Answer 27

Icthyosaurs

Question 28

What did icthyosaur evolve?

Answer 28

Shorter limbs, number of finger bones increased and more digits