Exam #3 Flashcards

The study of insects

Entomology

As blood flows out of the insect’s dorsal aorta, which is the first organ to receive this blood?

Brain

House flies have which type if mouthparts

Sponging

Grasshoppers belong to what order?

Orthoptera

Gradual changes in form during growth from an immature to adult. Wings develop external pads in…

Hemimetabolous

Insect hemolymph…

Does not carry significant amounts of oxygen

Single pair of wings that halteres for balancing

Diptera

Takes nitrogen waste out of the insect’s hemolymph and controls water balance

Malpighian tubules

The hormone responsible for initiating molting in insects

Brain hormone

Whichregion of the alimentary canal in insects is not lined with cuticle

Midgut

Undifferentiated cells that are set aside during insect embryonic development, but then differentiate to produce pupal and adult characteristics

Imaginal discs

Once a pupal exoskeleton has been completed on an insect, the structure inside it is…

Mostly broken down with new adult charecteristics replacing larval features

Organisms that belong to the class Asteroidea

Sea Stars

Bilateral symmetry, short spines and burrow into sandy substrates

Irregular Echinoida

The detachment of a body part by an organism

Autotomy

Inside the gill area of fish the flow of water is —— of the blood flow

The opposite direction

Have a compact body enclosed in a test. Tube feet with suckers arranged in five ambulatory grooves

Echinoidea

The largest class of echinoderms in both number of species ad individuals

Brittle starts

Sea lilies and feather stars are

More prevalent in the fossil record than that occur in the ocean today

A thin layer of water, land and air that surrounds the earth and is inhabited by living organisms

The biosphere

The final plant community to occupy an area

Climax

All organisms within an area belonging to the same species

Population

The only invertebrates with a multilayered epidermis

Chaetognatha

The study of the interactions of living organisms with each other and the nonliving (physical) environment

Ecology

The most important physical factor used to measure aquatic habitats

Dissolved oxygen

The endostyle is similar in function to which of the following

Thyroid gland

A notochord contains fluid engorged?

True

The tunicated belong to which subphylum

Urochordata

Which is not true of lancelets

Gills

Transversly striped, extremely long, cylindrical fibers which are multinucleated

Skeletal muscle

An extinct jawless fish with armored bone in the dermis but lacked paired fins

Heterostracans

The larvae of lampreys are called

Ammocoetes

All lampreys are parasitic

False

The caudal fin on sharks is described as

Heterocercal

The muscle controlling fin movement within the fin in

Lobed-finned fish

Developing young are retained in the uterus while they are nourished by their yolk sacs until they are born

Ovoviviparous

A chamber that occurs in bony fish to allow them to achieve neutral buoyancy

Swim bladder

Small calcareous plate in the inner ear of fish used for aging fish

Otoliths

Fish growth is temperature dependent

True

Modern bony fish

Teleost fish

Some of their internal structure is composed of endochondral bone

Osteichthyes

Has a buccal funnel for suction and it contains keratinized teeth. Also had a keratinized tongue

Lampreys

Dampens blood pressure oscillation before blood flows into delicate blood capillaries of a fish

Conus arteriosus

A protein produced by female fish to form egg yolk

Vitellogenin

Fish that spend ,out of their lives at sea, but they move up fish water stream to spawn

Anadromous

The rectangular basal plate embedded in the skin with a backward pointing spine

Placoid scale

Tie their bodies in a knot in order to gain leverage

Hagfish

Body disc (calyx) is covered with leathery skin containing calcareous plates. Five flexible arms branch to form many more arms

Crinoidea

There are more species in this class than species of all other animals combined

Insecta