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Which is the main reason salamanders must lay eggs in water? A. The eggs are not laid in nests. B. The eggs need protection from predators. C. The eggs do not have a shell to prevent water loss. D. The eggs need to absorb nutrients from water.
Weegy: C. The eggs do not have a shell to prevent water loss is the main reason salamanders must lay eggs in water. (More)
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Asked 7/17/2012 10:39:25 AM
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All of the following have an internal skeleton except A. sand dollars. B. sand fleas. C. sea stars. D. sea lilies. User: Which of the following phyla have the most species that parasitize humans? A. Echinodermata B. Platyhelminthes C. Porifera D. Mollusca
Weegy: D. Mollusca User: The kingdom Animalia includes all of these except A. paramecium. B. cnidarians. C. poriferans. D. arthropods. User: Ascidians are sac-like marine invertebrates. Their larvae have well-developed brains and dorsal nerve cords. This suggests that ascidians should be classified with the A. annelids. B. sponges. C. chordates. D. cnidarians. Weegy: A. annelids. User: Which of these organisms lacks nervous tissue? A. sponge B. jellyfish C. nematode D. earthworm Weegy: A sponge does not have a nervous system. User: Many bivalves, like scallops, live in salt water. The scallop captures food particles from water that flows over its gills. Which of these is the best classification of the scallop? A. a chunk feeder B. a decomposer C. a filter feeder D. a grazer Weegy: C. a filter feeder User: A fungus, like a mushroom, and a mammal, like a kangaroo, are alike because both are A. heterotrophic. B. prokaryotic. C. unicellular. D. motile. Weegy: A. heterotrophic. User: annelids are considered closely related to mollusks. How are they different? A. Annelids have nephridia. B. Annelids have a coelom. C. Annelids do not have a mantle. D. Annelids do not have cerebral ganglia. Weegy: The answer is B. Annelids have a coelom. Annelids are coelomate animals meaning they have a true coelom within their body. They have sets chaetae attached to each body segment. User: Arthropods like shrimp molt because A. their hard exoskeleton cannot grow larger. B. their body grows faster than their exoskeleton. C. their exoskeleton is damaged. D. their exoskeleton cracks and lets in water. Weegy: C is the correct answer. User: Which is the main reason toads must lay eggs in water? A. The eggs do not have a shell to prevent water loss. B. The eggs need to absorb nutrients from water. C. The eggs are not laid in nests. D. The eggs need protection from predators. Weegy: B. The eggs need to absorb nutrients from ... (More)
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Asked 7/17/2012 10:45:31 AM
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which of these animals is a marsupial? A. elephant B. echidna C. dolphin D. kangaroo
Weegy: A kangaroo is a marsupial. User: How are living mammals classified into groups? A. method of respiration B. structure of kidneys C. type of circulatory system D. method of development Weegy: Living mammals are classified into groups according to: method of development. (More)
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Updated 3/18/2014 5:00:46 PM
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Classify the following animal: Traits: - terrestrial - needs watery environment for reproduction A. Mammalia B. Reptilia C. Aves D. Amphibia User: Fish are classified as vertebrates because they have A. a brain. B. a backbone. C. two germ layers. D. bilateral symmetry.
Weegy: Fish are classified as vertebrates because they have a BACKBONE. User: All of the following have an internal skeleton except A. sand dollars. B. sand fleas. C. sea stars. D. sea lilies. Weegy: d. Sea Lilies User: Which of the following phyla have the most species that parasitize humans? A. Echinodermata B. Platyhelminthes C. Porifera D. Mollusca (More)
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Updated 3/18/2014 5:12:01 PM
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Platyhelminthes is the phylum with the most species that parasitize humans (tapeworms and flukes).


Added 3/18/2014 5:04:11 PM
This answer has been confirmed as correct, not copied, and helpful.
All of the following have an internal skeleton except: SAND FLEAS.
Added 3/18/2014 5:12:01 PM
This answer has been confirmed as correct, not copied, and helpful.
The kingdom Animalia includes all of these except A. paramecium. B. cnidarians. C. poriferans. D. arthropods.
Weegy: The answer is: B. cnidarians. [smile] User: Ascidians are sac-like marine invertebrates. Their larvae have well-developed brains and dorsal nerve cords. This suggests that ascidians should be classified with the A. annelids. B. sponges. C. chordates. D. cnidarians. Weegy: Ascidians are sac-like marine invertebrates. Their larvae have well-developed brains and dorsal nerve cords. This suggests that ascidians should be classified with the CHORDATES. Ascidians are commonly called sea squirts, and unlike sponges have spinal nerve cords in the larval form. [ ] (More)
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Updated 3/18/2014 5:15:58 PM
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The kingdom Animalia includes all of these except PARAMECIUM, which belongs to the kingdom Protista.
Added 3/18/2014 5:15:58 PM
This answer has been confirmed as correct, not copied, and helpful.
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