Question

select all that apply
select all the characteristics of annelids called leeches.
□ sucker on each end
□ bristles on each segment
□ lack pigment in skin
□ live in freshwater
□ saddlelike cocoon near head to protect eggs
□ feed on blood of vertebrates

Explanation:

Leeches (subclass Hirudinea) are annelids. They have suckers at both ends (anterior and posterior) which help in attachment. Many leeches are freshwater dwellers. They are ectoparasites and often feed on the blood of vertebrates (although some are predatory or feed on invertebrates). They lack bristles (setae) which are present in other annelids like oligochaetes. Their skin can have pigmentation (e.g., some leeches are dark - colored). The saddle - like cocoon (clitellum) in leeches is near the middle of the body, not near the head.

Answer:

sucker on each end, live in freshwater, feed on blood of vertebrates