Biology Questions

1 5 53 Which of the following do ALL chordates possess at least during some part of their life cycle Oa well developed head cranium Ojaws O a backbone a notochord four limbs

8 9 3 7 1 11 12 14 1 15 A shared derived characteristic for members of the vertebrate subphylum would be the presence of Overtebrae the coelom a head a notochord

9 12 17 15 18 Which of the following is a major difference between the chondrichthyans and the ray finned fishes Oonly ray finned fishes have paired fins Oonly chondrichthyans have a swim bladder chondrichthyans have a cartilaginous skeleton whereas ray finned fishes have a bony skeleton Ochondrichthyans evolved in fresh water whereas ray finned fishes evolved in salt water only chondrichthyans have true w

Listen Which of the following is a shared ancestral character for all reptiles amniotic egg radial symmetry cold blooded four chambered heart 76 1 point obrates are asso

18 Which characteristic s is are shared by both cnidarians and flatworms true muscle radial symmetry a digestive system with a single opening O a coelom dorsoventrally flattened bodies

9 14 12 15 17 18 Jaws first occurred in which extant group of fishes Olampreys Olungfishes O placoderms ray finned fishes Ochondrichthyans

Which of the following is NOT a function associated with a body cavity coelom allowing internal organs to move operate independently of the body wall digestion Oprotection of internal organs support movement

Nematode worms and annelid worms share which of the following features O presence of segmentation ecdysis use of fluid in the body cavity as a hydrostatic skeleton absence of species with parasitic lifestyles O presence of a circulatory system

5 Invertebrates are defined as animals that lack O a head an exoskeleton an endoskeleton a backbone

The only invertebrate phylum that contains members that can fly is nematoda echinodermata Omollusca Orotifera

5 Against which hard structure do the circular and longitudinal muscles of annelids work endoskeleton Oshell Ocuticle hydrostatic skeleton Obristles

8 Which of the following is unique to animals the ability to move heterotrophy Ocells that have mitochondria the structural carbohydrate chitin Onervous conduction and muscular movement

15 18 In animals with true tissues the ectoderm gives rise to the the animal s endoskeleton outer body covering Olining of the digestive tract and organs muscles the head

2 15 1 18 20 21 What distinguishes a coelomate animal from a pseudocoelomate animal is that coelomates O have a gut that lacks suspension within the body cavity whereas pseudocoelomates have mesenteries that hold the digestive system in place have a complete digestive system with mouth and anus whereas pseudocoelomates have a digestive tract with only one opening have a body cavity completely lined by mesodermal tissue whereas pseudocoelomates do not O contain tissues derived from mesoderm whereas pseudocoelomates have no such tissue Ohave a body cavity whereas pseudocoelomates have a solid body

Which of the following is a major difference between the chondrichthyans and the ray finned fishes chondrichthyans have a cartilaginous skeleton whereas ray finned fishes have a bony skeleton only ray finned fishes have paired fins chondrichthyans evolved in fresh water whereas ray finned fishes evolved in salt water only chondrichthyans have true jaws only chondrichthyans have a swim bladder

Listen Why is gas exchange so important for an animal What is being exchanged What are some mechanisms that invertebrates use to accomplish this

6 1 3 9 1 1 11 12 1 Most animal phyla belong to the clade amniotes O protostomia bilateria Olophotrochozoa deuterostomia

gestion 27 1 point 4 Listen There are three major groups of mammals categorized on the basis of their size habitat teeth and digestive system O method of locomotion method of reproduction

5 6 1 1 8 9 1 J 11 1 1 12 1 According to the evidence collected so far the animal kingdom is Opolyphyletic not a true clade Omonophyletic Oparaphyletic

4 Listen Which of the following are the only extant existing animals that descended directly from dinosaurs birds crocodiles lizards snakes turtles

The earliest known mineralized structures in vertebrates are associated with which function reproduction defense feeding respiration locomotion

Jaws first occurred in which extant group of fishes lampreys lungfishes chondrichthyans placoderms ray finned fishes

Invertebrates are defined as animals that lack an endoskeleton a backbone a head an exoskeleton Question 19 1 point important evolutionary breakthroug

Listen point The stages of complete metamorphosis in insects are in order larva egg pupa adult egg pupa larva adult egg larva pupa adult adult pupa larva egg egg adult 15

Listen Planarians lack dedicated respiratory and circulatory systems because their body cavity a pseudocoelom carries out these functions they lack mesoderm as embryos and therefore lack the adult tissues derived from mesoderm Onone of their cells are far removed from the gastrovascular cavity or from the external environment their flame bulbs can carry out respiratory and circulatory functions

Listen How can cnidarians such as sea jellies survive in the water with no gills or lungs they must periodically rise to the surface to get air their cells don t need oxygen since they move so little they have special oxygen pumps in their cells their body walls are extremely thin they don t have a nervous system which required a lot of oxygen

Compared to a sac digestive tract one opening the tube digestive the animals is better because there is more room to store food there can be simultaneous processing of food in different stages diffusion takes care of all food movement in the tract it is easier to repair if damaged it allows the organism to feed from either end

on 6 1 point Both animals and fungi are heterotrophic What distinguishes animal heterotrophy from fungal heterotrophy is that only animals derive their nutrition by preying on animals ingesting it consuming living rather than dead prey using enzymes to digest their food

11 HA Cephalization is most commonly associated with asymmetry bilateral symmetry radial symmetry sessile animals

Which two phyla comprise the Ecdysozoans group Annelida and Arthropoda Nematoda and Mollusca Platyhelminthes and Arthropoda Nematoda and Arthropoda

Which of the following can be considered an example of homology among the animal clade some animals have a distinct larval stage most animals have bilateral symmetry all animals have HOX genes that guide the early development of the body a coelom may or may not be present in an animal some animals have a sac digestive structure and some have a tube digestive tract soint oterotrophy

Which of the following invertebrates is thought to be most closely related to humans an insect like a grasshopper a segmented worm like an earthworm an echinoderm like a sea urchin a mollusc like an octopus

Lister Most animals reproduce cycle sexually haploid asexually diploid asexually haploid rexually diploid and the stage usually dominates the li

Against which hard structure do the circular and longitudinal muodes of work shell bristles hydrostatic skeleton endoskeleton cuticle

49 Listen Most animal phyla belong to the clade amniotes bilateria lophotrochozoa deuterostomia protostomia

Question 2 1 point 4 Listen This part of the animal embryo will give rise to the digestive tract of the adult animal body ectoderm mesoderm blastopore coelom

This part of the animal embryo will give rise to the outer covering of the adult animal body ectoderm mesoderm endoderm coelom archenteron 1 point adult stage being

How can cnidarians such as sea jellies survive in the water with no gills or lungs Othey must periodically rise to the surface to get air Otheir cells don t need oxygen since they move so little Othey have special oxygen pumps in their cells Otheir body walls are extremely thin Othey don t have a nervous system whil

Why is the amniotic egg considered an important evolutionary breakthrough OIt allows deposition of eggs in a terrestrial environment It has a shell that increases gas exchange OIt provides insulation to conserve heat OIt permits internal fertilization to be replaced by external fertilization It prolongs embryonic development

Which of the following is NOT shared by birds and non bird reptiles O endothermic metabolism Oscales made of keratin Obackbone of vertebrae O amniotic eggs Ogill structures in the embnin

of the following is a major difference between the chondrichthyans and the ray finned fishes Oonly chondrichthyans have a swim bladder O chondrichthyans have a cartilaginous skeleton whereas ray finned fishes have a bony skeleton O chondrichthyans evolved in fresh water whereas ray finned fishes evolved in salt water Oonly ray finned fishes have paired fins Oonly chondrichthyans have true jaws

Which of the following is a shared ancestral character for all reptiles O amniotic egg radial symmetry O cold blooded four chambered heart

There are three major groups of mammals categorized on the basis of their Ohabitat Oteeth and digestive system Omethod of reproduction O size method of locomati

The most recent common ancestor between a fish and an earthworm most likely had which trait Obilateral symmetry O closed circulation Onotochord

What is the probable sequence in which the following clades of animals originated from earliest to most recent 1 tetrapods 2 vertebrates 3 deuterostomes 4 amniotes 5 bilaterians 03 5 2 1 4 05 3 4 2 1 05 3 2 4 1 05 3 2 1 4 03 5 4 2 1

A difference between amphibians and reptiles is that Oamphibians are invertebrates but reptiles are vertebrates Oamphibian eggs can survive out of water and reptile eggs cannot amphibians have thin skin whereas reptiles have thick skin covered with sca Oreptiles are considered tetrapods whereas m

In terms of food capture which sponge cell is most similar to the cnidocyte of a cnidarian O amoebocyte Ospicule Ochoanocyte O epidermal cell

Invertebrates are defined as animals that lack O O an exoskeleton an endoskeleton O a backbone a head

Planarians lack dedicated respiratory and circulatory systems because Onone of their cells are far removed from the gastrovascular cavity or from the external environment they lack mesoderm as embryos and therefore lack the adult tissues deriver from mesoderm their flame bulbs can carry out respiratory and circulatory functions Otheir body cavity a pseudocelom

hat distinguishes a coelomate animal from a pseudocoelomate animal is that coelomates O have a complete digestive system with mouth and anus whereas pseudocoelomates have a digestive tract with only one opening have a gut that lacks suspension within the body cavity whereas pseudocoelomates have mesenteries that hold the digestive system in place Or O contain tissues derived from mesoderm whereas pseudocoelomates have no such tissue have a body cavity whereas pseudocoelomates have a solid body have a body cavity completely lined by mesodermal tissue whereas pseudocoelomates do not