Zoology Final Exam December 2023 Flashcards
Cephalization:
Is characterized by the concentration of sensory organs in anterior end.
An organism with a body cavity that is not complete is a:
Psuedocoelomate.
Pseudocoelomates:
Must be very small or have body shapes with short distances between organs.
Which of the following is not a member of the Phylum Mollusca?
Echinoderm.
The evolution of the coelom was significant because:
It enabled the development of complex organ systems.
A characteristic structure found in many mollusks is the radula, which is involved in:
Eating.
The only cephalopod to retain it’s external shell is the:
Nautilus.
Spiders, scorpions, and mites all belong to the subphylum:
Chelicerata.
All of the following are Arthropods except for:
Clam worms.
The exoskeleton of an insect:
Is moved by muscles that are attached to the inside of the exoskeleton.
The exoskeleton of arthropods is made of a material called:
Chitin.
In what ways are lobsters similar to spiders?
They both have jointed appendages.
They both have exoskeletons.
They both have segmented bodies.
To grow larger, arthropods must molt and:
Grow a new exoskeleton.
Spiders, and other arachnids, typically have:
Two body segments and eight legs.
Mandibles on a true insect are attached to the:
Head.
The posterior section of an arthropod that contains digestive and reproductive organs is called the:
Abdomen.
All fish have a(n):
Internal skeleton.
Generally, fishes obtain their oxygen through their:
Gills.
The release of sperm and eggs near each other into the water occurs during:
Spawning.
The changing of body shape, form, and function from infant to adult is known as:
Metamorphosis.
How many stages does a frog go through in it’s life cycle?
4: egg, tadpole, froglet, adult.
Although adapted to land, most amphibians must have access to a watery environment to:
Reproduce.
Reptiles cannot regulate their own body heat, which is also known as:
Ectothermic.
Reptiles respire through:
Lungs.
The geographical range of reptiles is limited by:
Temperature.
Reptiles have/use:
Internal fertilization.
While dissecting an organism from the group Testudinata, you remove the ventral portion of the shell. Name that part.
Plastron.
Feathers, used by birds to fly, are made of keratin and are modified:
Scales.
The bones of birds are highly adapted for flying and can be best described as:
Thin and hallow.
Mammals, as well as birds, have:
A four-chambered heart.
The sheet of muscle at the bottom of the rib cage of mammals that allows for breathing is called the:
Diaphragm.
(T/F) Cnidarians are characterized by stinging nematocysts.
True.
(T/F) Because of the presence of fangs, spiders belong to the subphylum Chelicerata.
True.
(T/F) There are more arthropod species on Earth that all of the other animal species combined.
True.
(T/F) Sharks and rays have skeletons made of cartilage.
True.
(T/F) Arthropods were the first invertebrates with lungs for gas exchange.
False.
(T/F) Watertight egg, amniotic eggs, are a bird and reptile adaptation of life on land.
True.
(T/F) All bony fish use external fertilization.
True.
(T/F) Some fishes give birth to live young (ovoviviparous).
True.
(T/F) Reptiles body temperature is mostly determined by the temperature of the environment.
True.
(T/F) Ovoviviparous reptiles carry their eggs in their bodies until after hatching.
True.
(T/F) Some feathers are specialized for flight (contour) and some are for insulation (down).
True.
(T/F) The structure of a mammals jaw and teeth usually reveal its diet.
True.
(T/F) Reptiles are ectotherms.
True.
(T/F) Like some reptiles, monotremes (platypus, echidna) are oviparous.
True.
Unlike reptiles, mammalian young are dependent on parental care for:
Food, protection, learning.
The offspring of marsupial mammals:
Are born early and complete their development in their mother’s pouch.
Mammals that lay eggs are:
Monotremes.
Egg-laying mammals are also:
Oviparous.
Offspring remain inside the mother until development is essentially complete in:
Placental mammals.
