phylum anthropods

are arthropods segmented?

yes

what are common structures in arthropods?

jointed appendages, an exoskeleton containing chitin, and segmented bodies

what is beginning to evolve in arthropods?

a brain located in the dorsal part of the head

how many species of arthropods are there?

over 1 million

arthropods have a lot of…

variation

what are the four subphyla of arthropods?

trilobites, chelicerates, crustaceans, uniramians

trilobites are…

the oldest subphyla of arthropods and are extinct

what are some examples of chelicerates?

spiders, ticks, mites, scorpions, and
horseshoe crabs

What are some examples of Crustaceans?

Lobster, shrimp, crab, isopods, and barnacle

what are some Examples of Uniramians?

uniramians include of most arthropods such as

centipedes, millipedes, and all insects—including bees, moths, grasshoppers, flies, and beetles

describe an arthropods circulatory system

arthropods have an open circulatory system comprised of a single dorsal vessel running through the body powered by one heart

what is the role of the exoskeleton?

a system of external supporting structures that are made primarily of the carbohydrate chitin that helps prevent water loss

what are the disadvantages of arthropods exoskeleton?

the exoskeleton does not grow as the arthropod grows, so organisms perform some molting or shell change. movement can only occur at joints

what evolved appendages do arthropods have?

Antennae, Claws, Walking legs, Wings, Flippers

what types of feeders are arthropods?

carnivores, herbivores, parasites, filter feeders, detritus feeders

describe arthropods respiration

they have evolved gills, book gills, book lungs, and tracheal tubes

tracheal tubes are found in…

terrestrial arthropods

most terrestrial animals dispose of their waste nitrogen-containing waste using…

Malpighian tubules

arthropods have pressure and sense organs to…

detects changes in their environment

insect ears are typically located behind their…

legs

arthropods have receptors in their…

mouthparts, antennae, and legs

what is camouflage?

disguising your body to hide in plain sight away from predators

what is mimicry?

making yourself appear like something you’re not, usually something bigger and scarier to scare away predators

how do arthropods reproduce?

males and females produce and egg and sperm, the female lays the egg. the only exception to this is spiders

what is metamorphosis?

a dramatic transformation from young to adult

what is a pupa?

an insect in its inactive __immature__ form between __larva__ and adult