Egg-laying mammals such as the echidna and duckbilled-platypus belong to a group of mammals called theMultiple choice question.monotremes.placentals.archosaurs.marsupials.

______ are the mammalian group that lay eggs.Group of answer choicesEutheriansTunicatesMonotremesPrimatesMarsupials

Although it is often assumed that one of the essential characteristics of mammals is that they give live birth to their young, there are actually two species of egg-laying _____ Ornithorhynchus anatinus, more commonly known as the duck-billed platypus, and Tachyglossus aculeatus, also called a short-beaked echidna or spiny anteater.18Mark for ReviewABCWhich choice completes the text so that it conforms to the conventions of Standard English?Amammals:Bmammals.Cmammals;Dmammals

Monotremes, which lay eggs, and marsupials and placentals, which are live-bearing, are three types of vertebrates calledMultiple choice question.amphibians.mammals.nonavian reptiles.avian reptiles.

Monotremes are mammals that ______, while marsupials and placental mammals ______.Multiple choice question.have mammary glands; lack mammary glandslack mammary glands; have mammary glandslay eggs; are live-bearingare live-bearing; lay eggs

Mammals are technically:Group of answer choicesDinosaursDiapsidsTherapsidsArchosaurs