evolution orgins of animal, pnat, fungi hooman Flashcards
which feature mostliley to have evovled first in primate line? A upright posture B brain volume above 550cm ubed C using fire to cook D opposable thumbs E loss of thick body hair
opposalbe thumbs!
> as all primates have them so most likely to have emerged first
which strucutrr is not an innovation that occured in invertebrate diversification? A notochord B jaws C amniotic egg D hair E bone
OPTION A
> as notochord came from the chordatas so not because of diversifying/radiation
which worn has a fluid filled coelom and segmented body? A marine flatworms B nemotodes (flatworm) C annelids (earth worm) D horseshoe worms
annelids!!
nematodes are NOT segmented
what was the msot signiifcnat driving factor in evolution of bilateral flowrs?
specialised pollinators - insects and birds!
Which is not a type of mollusc eye? Pinhole eye Compound eye An eye like a cup backed by a mirror An eye which is formed as a camera like device
OPTION B
Compound eye - arthropods and polycheate annelids (most developed arthropod)
C - found in scallops
D - found in squids and snails
Which is not an intrinsic factor which promoted reptilian success?
Internal fertilisation
Adaptation of scaly skin which reduced evaporation
Climate caused demise of amphibians reducing competition
Development of the amnion
OPTION C
this is an extrinsic factor (as well as global warming)
> driet cliamte measn amphibian can survive as they need water/permeable skin to breather
>scaly skin in reptile means they can conserve water and survuve in a drier climate
What are the repeating units in a compound eye? Cones Rods Ommatidia Rhabdom Pigment cells
OPTION C
