lesson 17 quiz

hemiptera

"true bugs"; incomplete metamorphosis; thick forewings (except at tips)

nematodes and arthropods are the largest ecdysozoan phyla. which of the following statements are true ? - both nematodes and arthropods possess an external covering, or cuticle - the cuticle in nematodes lengthens as the animal grows - both nematodes and arthropods must molt in order to increase in size - nematodes possess a closed circulatory system - arthropods are named for their jointed appendages - some nematodes are parasitic on humans - arthropods possess an open circulatory system - both nematodes and arthropods have segmented body plans - nematodes are acoelomate, whereas arthropods are coelomate

- both nematodes and arthropods possess an external covering, or cuticle - both nematodes and arthropods must molt in order to increase in size - arthropods are named for their jointed appendages - some nematodes are parasitic on humans - arthropods possess an open circulatory system

which of the following are characteristics of arthropods ? 1. protostome development 2. bilateral symmetry 3. a pseudocoelom 4. three embryonic germ layers 5. a closed circulatory system

1, 2, and 4

nematode worms and annelid worms share which of the following features ? - molting - presence of a circulatory system - presence of segmentation - absence of species with parasitic lifestyles - a digestive tract with two openings (a mouth and an anus)

a digestive tract with two openings (a mouth and an anus)

coleoptera

beetles; complete metamorphosis; hard forewings to protect membraneous hind wings

lepidoptera

butterflies, moths; complete metamorphosis; wings have scales

trichoptera

caddisflies; complete metamorphosis; hairy wings

a shared derived characteristic for members of the arthropod subgroup that includes spiders would be the presence of _____ - a cephalothorax - chelicerae - an exoskeleton - a cuticle - an open circulatory system

chelicerae

the phylum arthropoda includes four major lineages: cheliceriforms (also called chelicerates); myriapods; insects and their relatives (together called hexapods); and crustaceans. drag each word or phrase to the appropriate bin

cheliceriforms: horseshoe crab; arachnids; possesses claw-like feeding appendages myriapods: millipedes and centipedes; exclusively terrestrial insects: butterfly; wings allow flight; body divided into head, thorax, abdomen; three pairs of walking legs crustceans: primarily aquatic; crabs and isopods; two pairs of antennae

the possession of two pairs of antennae is a characteristic of _____ - insects - centipedes - millipedes - crustaceans - spiders

crustaceans

interpret the models of three phyla of worms T/F: all three models show cross sections

false

interpret the models of three phyla of worms T/F: since none of these phyla have a head, none have an anterior end

false

interpret the models of three phyla of worms T/F: these three phyla of worms are the same size

false

diptera

flies; complete metamorphosis; hind wings reduced to stabilizers

orthoptera

grasshoppers, crickets; incomplete metamorphosis; one pair of leathery wings, one pair of membraneous wings

how do hemimetabolous and holometabolous metamorphosis differ ? - in hemimetabolous metamorphosis, juveniles are a feeding stage. in holometabolous metamorphosis, only adults can feed - in hemimetabolous metamorphosis, juveniles are sexually mature. in holometabolous metamorphosis, only adults can reproduce - in hemimetabolous metamorphosis, juveniles are a dispersal stage. in holometabolous metamorphosis, juveniles are sessile - hemimetabolous metamorphosis is incomplete, while holometabolous metamorphosis is complete

hemimetabolous metamorphosis is incomplete, while holometabolous metamorphosis is complete9

what is the function of the arthropod exoskeleton ? - it makes growth by molting possible - it has no well-established function. (trilobites had an exoskeleton, and they went extinct) - the presence of an exoskeleton has given arthropods a good fossil record, because hard parts fossilize more readily than do soft tissues - it provides protection and functions in locomotion

it provides protection and functions in locomotion

when considering the wormlike phyla within the protostomes, which feature is most useful in distinguishing groups ? - the presence or absence of a complete digestive system NO - presence of a hydrostatic skeleton - molting as they grow larger - the presence of a mouth NO

molting as they grow larger

interpret the models of three phyla of worms T/F: annelida is the only phylum of the three with segmentation

true

interpret the models of three phyla of worms T/F: nematoda is the only phylum of the three with a cuticle

true

interpret the models of three phyla of worms T/F: platyhelminthes uses the same opening as a ''mouth'' and an ''anus."

true