Question

Give any one difference between each of the following.
A. Protozoa and Metazoa.
B. Invertebrates and Vertebrates.
C. Insects and Arachnids.
D. Flatworms and Roundworms.

Answer 1

To The key distinction between Protozoa and Metazoa, Amoebae, flagellates, ciliates, and Sporozoa are the main forms of protozoan, while vertebrates and invertebrates are the two main forms of metazoan. Invertebrates don’t have a backbone or an inner skeleton. The frame of an arachnid is made from segments: the cephalothorax and abdomen. Whereas there are greater than 25,000 species within the flatworm phylum. Some are simplest, approximately a millimeter in length. Roundworms are invertebrates of Phylum Nematoda.

Complete answer:
Part (A) - Difference between protozoa and metazoa:

Protozoa	Metazoa
Physiologically perform digestion, excretion reproduction, etc. They have a cellular grade of organization.	Different cells or tissues together perform specific physiological functions. They have cell tissue, organ and gadget grade of organization.

Part (B) - Difference between Invertebrates and vertebrates:

Invertebrates	Vertebrates
Invertebrates neither own a spine nor an inner skeleton.	Vertebrates own a spine and an inner skeleton.
Invertebrates have an exoskeleton.	Vertebrates do not own an exoskeleton.

Part (C) - Difference between insects and Arachnids:

Insects	Arachnids
Insects are small arthropods who own six legs and one or more pairs of wings.	Arachnids are wingless arthropods, having a frame with cephalothorax, abdomen, eight appendages, and no antennae.

Part (D) - Difference between flatworms and roundworms:

Flatworms	Roundworms
Flatworms are included with cilia, hairlike growths. The gliding locomotion of a flatworm is powered by means of many tiny cilia on the outer floor of its body.	Roundworms have inflexible outer protection referred to as a cuticle that they shed again and again during their lives and as they grow. Roundworms contain elongated muscles such that they can move in a thrashing motion.

Note: Protozoa and Metazoa are two groups of eukaryotic animals that are categorized according to their organization of the body. While Sponges, corals, worms, insects, spiders, and crabs are all sub-businesses of the invertebrate group – they now no longer have a backbone. Fish, reptiles, birds, amphibians, and mammals are one of a kind sub-businesses of vertebrates. Arachnids are creatures with frame segments, 8 legs, no wings or antennae, and aren’t capable of chew. While flatworms generally live in water areas whereas roundworms can live either in water or soil’s side. However, roundworms are extra superior to flatworms. They additionally have blood vessels.