Weegy: Monotremes and marsupials are limited to the Australian region because of - isolation caused by continental drift. User: Unlike reptiles young mammals depend on their parents for A. food. B. protection. C. grooming. D. all of the above Weegy: ALL OF THE ABOVE. Unlike reptiles young mammals depend on their parents for food, protection and grooming. User: In mammals the powerful muscle that aids in breathing is the A. diaphragm. B. kidney. C. cerebrum. D. placenta. Weegy: In mammals the powerful muscle that aids in breathing is the diaphragm. User: All marsupials except one group exist on the continent A. Asia. B. Africa. C. Australia. D. North Amer Weegy: All marsupials except one group exist on the continent of Australia. User: What are different categorizations of chordates? How do they differ from one another? Use complete sentences. (More)

Weegy: Mammals that give birth to fully developed live young are termed placentals. User: Mammals that give birth to under-developed young that must continue developing in a pouch-like structure are termed A. monotremes. B. marsupials. C. placentals. D. bird-like. Weegy: Mammals that give birth to under-developed young that must continue developing in a pouch-like structure are termed marsupials. User: If an animal has long canine teeth and sharp molars it is probably a A. carnivore. B. rodent. C. deer. D. herbivore. Weegy: If an animal has long canine teeth and sharp molars it is probably a: CARNIVORE. User: How are living mammals classified into groups? A. type of circulatory system B. method of development C. method of respiration D. method of regulating body temperature Weegy: Living mammals are classified into method of development. User: Mammals that lay eggs are termed A. monotremes. B. marsupials. C. placentals. D. bird-like. Weegy: Mammals that lay eggs are termed monotremes. User: In the development of dogs, monkeys and dolphins, nourishment and oxygen are provided by the mother to the fetus through the A. excretory system. B. cloaca. C. placenta. D. both (B) and (C). (More)

Weegy: All of the following are characteristics of monotremes, marsupials and placentals except: cold blooded. User: Which of these animals is a marsupial? A. elephant B. echidna C. dolphin D. kangaroo Weegy: 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 by the method of development. (More)

Weegy: Platyhelminthes have the most species that parasitize humans. (More)

Weegy: Sponge lacks nervous tissue. 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: Many bivalves, like scallops, live in salt water. The scallop captures food particles from water that flows over its gills. A FILTER FEEDER is the best classification of the scallop. User: Gas exchange takes place in the __________ of many aquatic animals. A. lungs B. diaphragm C. gut D. gills Weegy: Gas exchange takes place in the GILLS of many aquatic animals. User: Which of the phyla has bilateral symmetry? A. Porifera B. Arthropoda C. Echinodermata D. both Echinodermata and Porifera User: What is the best way to prevent a tape worm infection? A. Wash your hands often. B. Wear shoes outside. C. Thoroughly cook raw meat. D. Get plenty of exercise. Weegy: Thoroughly cook raw meat is the best way to prevent a tape worm infection. 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: Annelids are considered closely related to mollusks. They are different because - Annelids have a coelom. 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 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. ... (More)