Answer:
The Jurassic period (199.6 million to 145.5 million years ago) was characterized by a warm, wet climate that gave rise to lush vegetation and abundant life. Many new dinosaurs emerged—in great numbers.
Explanation:
The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic Magmatic Province. ... By the beginning of the Jurassic, the supercontinent Pangaea had begun rifting into two landmasses: Laurasia to the north and Gondwana to the south.
Opposing muscle groups are muscles that work together to perform an action, or just to move your body. They're also often referred to as antagonistic pairs. When carrying out a movement, one muscle contracts and the other lengthens to allow it all to happen
