Figure 2 Which of the following describes the relationship between the earthworms and the
beetles in the food web? (SB5b)
A. The earthworms and the beetles both compete for fungi.
B. The earthworms and the beetles both compete for robins and moles.
C. The earthworms help the beetles survive, and the beetles do not harm the
earthworms.
D. The earthworms help the beetles survive, and the beetles help the earthworms
survive.

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

it depends on how much it could carry.

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.