Giant lycophyte trees of earth’s early forests (see figure 26.27) had microphylls, whereas ferns and seed plants have megaphylls. write a short essay (100–150 words) describing how a forest of lycophyte trees may have differed from a forest of large ferns or seed plants. in your answer, consider how the type of forest in which they grew may have affected interactions among small plants growing beneath the tall ones.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.

answer; coat color for blending in with dry grass;