Which of these are characteristics of all three main groups of worms? Check all that apply. They lack nerve cells.
They can reproduce sexually.
They display bilateral symmetry.
They have a single tissue layer.
They are invertebrates.
Multiple choice

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f

2points what do bacteria have in common with the cells of other living organisms?