BSCI 207 EXAM II QUESTIONS WITH ANSWERS
LATEST UPDATE ALREADY GRADED A+
A number of characteristics evolved multiple times within the
protostomes. Which of the following probably evolved only
once?
segmentation
sophisticated sensory systems
fast locomotion
cephalization - correct answer- cephalization
Adding bicoid to a bicoid knockout forms a head proves it's ___
- correct answer- Sufficient
Adding bicoid to the posterior end of a wild type Drosophila
forms a fly with two heads proves it's ___ - correct answer-
Sufficient
Birds and mammals independently evolved several major
innovations. Check all that were one of these.
,Large lung surface area
Low metabolic rate
Vertical posture
Fully divided circulation - correct answer- Large lung
surface area
Vertical posture
Fully divided circulation
Chondrichthyes means "cartilage fish". How does this group,
including sharks, differ from its more recent bony fish cousins?
- correct answer- They have cartilagenous fins
Chytrid fungi show some of the features typical of fungal
opisthokonts. This includes.... - correct answer- having a
posterior flagella,
having chitin in their cell wall,
being absorptive heterotrophs
Coelem in annelids - correct answer- Fluid filled cavity
that can act as a hydroskeleton
, Coen and Meyerowitz came up with the ABC model of flower
development. What are the required parts of their model? -
correct answer- There are three types of floral hox genes.
Expression of the genes overlaps to form the organ domains or
whorls.
Two of the genes repress each other forming a switch.
Five major extinctions happened during the Phaenerozoic epoch.
If each extinction happened at the end of different eras, what is
their order? - correct answer- Ordovician
Devonian
Permian
Triassic
Cretaceous
Fungi are important for humans for several reasons, they are......
- correct answer- - important in producing foods from
bread to cheese
-important scientific model systems
-cause diseases from yeast infections to athlete's foot
-produce important antibiotics
LATEST UPDATE ALREADY GRADED A+
A number of characteristics evolved multiple times within the
protostomes. Which of the following probably evolved only
once?
segmentation
sophisticated sensory systems
fast locomotion
cephalization - correct answer- cephalization
Adding bicoid to a bicoid knockout forms a head proves it's ___
- correct answer- Sufficient
Adding bicoid to the posterior end of a wild type Drosophila
forms a fly with two heads proves it's ___ - correct answer-
Sufficient
Birds and mammals independently evolved several major
innovations. Check all that were one of these.
,Large lung surface area
Low metabolic rate
Vertical posture
Fully divided circulation - correct answer- Large lung
surface area
Vertical posture
Fully divided circulation
Chondrichthyes means "cartilage fish". How does this group,
including sharks, differ from its more recent bony fish cousins?
- correct answer- They have cartilagenous fins
Chytrid fungi show some of the features typical of fungal
opisthokonts. This includes.... - correct answer- having a
posterior flagella,
having chitin in their cell wall,
being absorptive heterotrophs
Coelem in annelids - correct answer- Fluid filled cavity
that can act as a hydroskeleton
, Coen and Meyerowitz came up with the ABC model of flower
development. What are the required parts of their model? -
correct answer- There are three types of floral hox genes.
Expression of the genes overlaps to form the organ domains or
whorls.
Two of the genes repress each other forming a switch.
Five major extinctions happened during the Phaenerozoic epoch.
If each extinction happened at the end of different eras, what is
their order? - correct answer- Ordovician
Devonian
Permian
Triassic
Cretaceous
Fungi are important for humans for several reasons, they are......
- correct answer- - important in producing foods from
bread to cheese
-important scientific model systems
-cause diseases from yeast infections to athlete's foot
-produce important antibiotics
