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48 Cards in this Set

  • Front
  • Back
Do frogs have teeth?
Yes; two small "vomerine teeth" to trap struggling insects before swallowing
Describe a frog's legs.
Strong hind legs for jumping and swimming.
What are animal-like protists called? What are they like?
Protozoa; consumers, no chlorophyll; move by cilia, flagella, false feet, and some don't move at all
What are plant-like protists called? What are they like?
Algae; chlorophyll, six main groups
What are the types of protists?
Foraminiferuns, Radiolarians, Volvox, stentors
What is a frog young like?
Tadpoles; live in water, feed on plants, breather with gills, have tails and no legs
What is the purpose of dissection?
1. Investigates structure of organisms 2. Relates structure to function
3. Reveals adaptations and evolution
What does "dissect" mean?
to cut or take apart
What is scientific dissection?
Orderly investigation of structure and function
longitudinal incision
up and down cut
transverse incision
across cut; side to side cut
What are scissors and how are they used in dissection?
Small, sharply pointed; used for incisions
What is a scalpel and how is it used in dissection?
blade; used for incisions and trimming
What are forceps and how are they used in dissection?
Tweezers; used for grasping and lifting
What is a probe and how is it used it used in dissection?
A stick-like object; used for poking, lifting, exploring
What is an earthworm's function?
Tunnels into and breaks down soil, aerating and enriching it
What is the phylum of earthworms?
How does an earthworm move?
Contracts and relaxes muscles in each segment
What is the function of setae?
Anchor each segment to ground
How many setae are on each segment of an earthworm's body?
What does an earthworm eat?
Decaying leaves and soil
Are frogs invertebrates or vertebrates?
What class do frogs belong to?
Amphibians; one of two orders (salamanders is the other order)
What kind of blood do frogs have? Cold or warm?
What kind of skin do frogs have?
Smooth, moist; no scales
What kind of skin do toads have?
Dry bumpy skin
Where do frogs live?
On or near water
Where do toads live?
Dry land
How do frogs reproduce?
External fertilization of eggs from female
How long does it take for a tadpole to become an adult?
A few weeks to a few years
What are adult frogs like?
Lungs, legs, no tail
Where do frogs hibernate?
Usually underwater in soft mud; sometimes on land under stones or logs
What is the significance of a frog's skin?
Plantlike is viewed from above; pale to look like sky from below
Why do a frog's eyes protrude?
Sight when partially submerged
What kind of respiration does a frog have?
Has lungs, but also has blood vessels in skin so as to absorb oxygen from the water when submerged; can stay under for longer periods of time
What is a frog's tongue like?
Attached at front; flips forward, stretches, flips backward to esophagus
What is important about a frog's backbone?
Fused vertebrae in lower backbone to preent injuries from shock of landing
What is a frog's heart like?
3 chambers
What does a frog's liver protect?
Heart and lungs
What is a frog's digestive system?
Gullet and esophagus lead to stomach and intestines; pancreas and gallbladder; kidneys remove nitrogen wates and make urine; urine and solid waster removed by cloaca (sewer) in pelvis; much like human's digestive system
How does a frog prepare for hibernation?
"Fat bodies" develop
How do frogs reproduce (in detail)?
Females produce jelly-like eggs from ovaries; males have testes to produce sperm; both are released into water through cloaca
Where do protists live?
Moist surroundings; rotting logs, soil, bodies of other organisms, oceans, ponds, swamps
In what ways do protists move?
Cilia, flagella, false feet