ENT 101 Midterm Exam Complete Guide | 1578 Comprehensive Questions & Answers | Grade A | 100% Correct

ENT 101 Midterm Exam Complete Guide | 1578 Comprehensive Questions & Answers | Grade A | 100% Correct Quiz_________________? insect represent what percent of all known species - Answer️️ over 50% Quiz_________________? vertebrates - Answer️️ have an internal skeleton (endoskeleton) with vertebrae arranged into a spinal column Quiz_________________? invertebrates - Answer️️ no vertebrae (no internal support structure) they have support outside their body (exoskeleton) Quiz_________________? two functions of the vertebral column - Answer️️ 1. provides support against gravity 2. allows for large body sizes Quiz_________________? vertebrate animals (5) - Answer️️ 1. amphibians 2. fish 3. reptiles 4. birds 5. mammals Quiz_________________? more than 90% of all species are what - Answer️️ invertebrates Quiz_________________? most recognized species of invertebrates - Answer️️ arthropods Quiz_________________? arthron - Answer️️ joint Quiz_________________? podos - Answer️️ feet Quiz_________________? arthropod means what - Answer️️ jointed appendages Quiz_________________? two functions of jointed appendages - Answer️️ 1. locomotion 2. modified for different structures (antennae, mouth parts, reproductive structures) Quiz_________________? how many known species of arthropods are there - Answer️️ about 1.2 million Quiz_________________? arthropods include what groups (6) - Answer️️ 1. crabs 2. lobsters 3. spiders 4. scorpion 5. millipedes 6. centipedes 7. insects Quiz_________________? 5 characteristics of arthropods - Answer️️ 1. bilateral symmetry 2. segmented bodies 3. ventral nerve cords 4. dorsal blood vessels 5. exoskeletons Quiz_________________? bilateral symmetry - Answer️️ split along the anterior-posterior axis (forming a single plane of symmetry, separating into left and right sides) Quiz_________________? jellyfish almost have perfect of what type of symmetry - Answer️️ radial Quiz_________________? 3 main body axis - Answer️️ 1. dorsal/ventral 2. anterior/posterior 3. lateral Quiz_________________? dorsal ventral axis - Answer️️ from top to bottom Quiz_________________? anterior posterior axis - Answer️️ from front to back Quiz_________________? lateral axis - Answer️️ from one side to another Quiz_________________? segmented body - Answer️️ fused into regions/tagmata with different biological functions Quiz_________________? ventral nerve cord of arthropods is not enclosed in what - Answer️️ a protective spinal column Quiz_________________? what type of nerve cord do humans have - Answer️️ dorsal Quiz_________________? what kind of circulatory system do humans have - Answer️️ closed Quiz_________________? open circulatory system of arthropods - Answer️️ don't have a network of blood vessels, they have a single dorsal blood vessel with large openings at either end Quiz_________________? in arthropods, tissues are directly exposed to what - Answer️️ blood Quiz_________________? exoskeleton two features - Answer️️ hard and flexible Quiz_________________? exoskeleton of arthropods is made up of what - Answer️️ cuticle and epidermis Quiz_________________? exoskeleton cuticle is made up of which two things - Answer️️ chitin and protein Quiz_________________? 3 layers of the exoskeleton cuticle - Answer️️ 1. waxy epicuticle 2. exocuticle 3. endocuticle Quiz_________________? exocuticle is hardened by what - Answer️️ tanning