Answer: All the above options are correct about the characteristics of Lumbriculus variegatus.
Explanation:
Lumbriculus variegatus also called the black worm belongs to the phylum Annelida and is used by biologists to illustrate:
-blood vessel pulsations,
-swimming reflex,
-peristaltic crawling behavior,
-giant nerve fiber action potentials.
These studies where carried out on them due to the characteristics they possess. These includes:
-its blood circulates in a closed circulatory system
-Freshwater worm found throughout North America and Europe
-Prefers the shallow habitats found at the edges of ponds, lakes, or marshes
-Feeds on decaying vegetation and microorganisms.
Answer: A. 2SO3(g)⇒2SO2(g)+O2(g). butt i mean give me 5 more points
Explanation:
Wouldn't it be three because of allthe types of Fungi?
D. The heat is there via convection from the sun
D. Frederick Taylor because I learned it in class today and I searched it up