Vertebrates often reside on land and give live birth. Which of the following groups of mammals...

Vertebrates often reside on land and give live birth. Which of the following groups of mammals do not align with one (or more) of these descriptions?

		monotremes
		marsupials
		tetrapods
		placental mammals

Which chemical removes calcium from bone?

		salt
		sugar
		aluminum foil
		water
		acetic acid / vinegar

Expert Solution

Vertebrates often reside on land and give live birth. Which of the following groups of mammals do not align with one (or more) of these descriptions?

The correct answer is, monotremes.

Explanation: There are two subclasses of mammals- Prototheria and Theria. The only prototherians are surviving today are the monotremes. The platypus and two species of echidna are the only living monotremes. Among living mammals, only monotremes lay shelled eggs. The platypus, found only in Australia, lives much of its life in the water.

Therians make up the vast majority of mammals. They are divided into two infraclasses: Metatherians (marsupials) and eutherians (placental mammals). In marsupials, a fertilized egg is surrounded by chorion and amniotic membranes. In the case of placental mammals, a placenta that nourishes the embryo throughout its entire development.

Tetrapods are four-limbed vertebrates. Major groups of the tetrapods: Amphibians, reptiles (including dinosaurs and birds) and mammals.

Therefore, The correct answer is, monotremes.

Which chemical removes calcium from bone?

The correct answer is, acetic acid/vinegar.

Explanation: Calcium makes the bone strong and rigid. Acid component (acetic acid) of vinegar reacts with calcium and forms a calcium salt. This calcium salt is soluble in water. Therefore, the calcium from the bone is dissolved into the water component of vinegar. Thus, vinegar makes the bone soft and less rigid.

gladiator answered 1 year ago

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Vertebrates often reside on land and give live birth. Which of the following groups of mammals...

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