Five different living organisms are represented below. Which statement about the organisms represented above is correct? 1)All of the organisms are autotrophs.

2)Only the flowering plant, green heron, and aquatic plant carry out photosynthesis.

3)Only the frog and green heron can maintain homeostasis.

4)All of the organisms pass on traits through reproduction.

layer 3 is younger than layer 6.

d. planting trees

the trees take in carbon to make oxygen.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

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.