Discuss the origin and development of mammals during the Mesozoic. What will be an ideal response?
A group of mammal-like reptiles, called the therapsids, developed during the Permian Period.
Among these therapsids, the cynodonts are the most probable ancestors to the true mammals.
These true mammals had appeared by Late Triassic time. Most of the Mesozoic mammals
were relatively small compared to dinosaurs with only a few species having larger sizes.
These early mammals diverged into two distinct branches, the monotremes, egg-laying
mammals, and another branch that includes the marsupial mammals and the placental
mammals.
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A) a sheet cut into 16 pieces B) both of the cut sheets C) a sheet cut into 8 pieces D) an uncut sheet E) They are all equally likely.
A fire deliberately set close to an advancing fire to create a firebreak by using the updraft of the wildfire to draw the fire toward the main fire is called a(n) _______________
Fill in the blank with correct word.
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The high runoff following sporadic desert downpours can create sudden local floods called ________.
A. storm surges B. ephemeral floods C. spring floods D. flash floods E. desert disasters