I think the correct answer is the first option. The key features of chordates would be notochord, dorsal tubular nerve cord, pharyngeal pouches, and a tail. These features appears in some period of their lives. They are deutorostomes where the anus would be formed first before the mouth.
Prey-predator relationship. Explanation: The relationship between the praying mantis feeding on a bee.
A. a description of a trait or habitat.
Purple loosestrife has the ability to severely decrease biodiversity wherever it grows due to its ability to displace many native plants. This not only affects the native plants themselves, but also any animal species which feed, nest, or take cover in wetland plants; the purple loosestrife forms such dense thickets that it is impossible for these animals to enter or use them. These animals are also displaced, then, by the loosestrife. Many of these animals, mostly birds, are highly valued aesthetically, and their disappearance is noticed by humans. On the other hand, though, humans also tend to find the loosestrife aesthetically pleasing; it was introduced as a decorative plant. Still, the damaging effect that the loosestrife has on ecosystem biodiversity is visible, and thus the plant offends any human values of conservation for the sake of conservation, a dominant cultural paradigm, and so the loosestrife is considered detrimental.
