1) What is the main characteristic of invertebrate animals? a) Backbone b) Internal organs c) Exoskeleton d) Feathers 2) Which of the following is an example of a carnivorous invertebrate? a) Butterfly b) Spider c) Snail d) Bee 3) In the context of interaction, how do animals primarily communicate? a) Visual signals b) Chemical signals c) Sound d) Electric impulses 4) What is the common method of reproduction among invertebrates? a) Viviparous reproduction b) Asexual reproduction c) Ovoviviparous reproduction d) Oviparous reproduction 5) What is the term for a new organism growing on the parent's body and then separating? a) Fragmentation b) Budding c) Division d) Replication 6) What type of skeleton do arthropods have? a) Internal skeleton b) Exoskeleton c) Endoskeleton 7) Which of the following is a cephalopod? a) Crab b) Octopus c) Butterfly d) Bee 8) Which invertebrate category includes arachnids? a) Molluscs b) Echinoderms c) Arthropods d) Annelids 9) What is the reproductive term for an organism making an identical copy of itself? a) Sexual reproduction b) Asexual reproduction c) Meiosis 10) Which category of invertebrates is characterized by gastropods and bivalves? a) Arachnids b) Insects c) Crustaceans d) Molluscs 11) What is the primary method of communication among animals? a) Sound b) Chemical signals c) Visual signals d) Touch 12) In asexual reproduction, what is fragmentation? a) Fusion of two organisms to create a new one b) New organism grows on the parent's body c) New organism grows from a part of its parent d) Division of the organism into two equal halves 13) What is the primary function of sense organs in invertebrates? a) Respiratory function b) Digestive function c) Reacting to stimuli 14) What is the term for asexual reproduction where the new organism grows from a part of its parent? a) Regeneration b) Cloning c) Fertilization d) Fragmentation 15) In the context of reproduction, what does "ovoviviparous" mean? a) Giving birth to live young b) Laying eggs in water c) Developing eggs internally and giving birth to live offspring d) Laying eggs on land 16) Which type of molluscs have two shells? a) Gastropods b) Cephalopods c) Bivalves 17) Select the insects parts  a) Two antennae b) Wings c) Segments d) Abdomen e) Thorax f) Head 18) Select the arachnids parts a) Head and thorax b) Abdomen c) Eight legs d) Segments e) Claws 19) Select the crustacecans parts a) Two eyes b) Four antennae c) Two antennae d) Eight legs e) Carapace (shell) f) Abdomen 20) Echinoderms bodies have a) Hard and spiky skin b) Tentacles c) Moist sking 21) Where can cnidarans live? a) Water b) Sea c) Land 22) Where can annelids live? (more than one) a) Land b) Water c) Inside other animals d) Sea floor

Invertebrates - 3 Primaria

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