Question

The roots of the aquatic plant hydrilla are poorly developed and lack xylem tissue. Which is an appropriate justification for this?

Answer 1

This is a freshwater plant that only grows well in full sun in my experience (you commonly see this in aquariums at the pet store (or the fake plastic version) but it rarely keeps because home aquarium lighting isn't often intense enough, more watts are needed) When it's getting enough sun it grows so much that it's on the invasive species list for Florida. On the plus side though it's great at removing toxins from the water and producing copious amounts of oxygen gas.

The justification is mainly that it's a freshwater aquatic plant. If you need more justification, cite its phylogeny. As hydrilla is aquatic in nature, the roots do not have to search for minerals, and there is no need for xylem to absorb nutrients because the plant is surrounded by water that has dissolved nutrients in it.

Answer 2

Is this a multiple choice question? If so, please remember to post the choices when you post the question. Hope this helps!

Answer 3

Its b