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1. What are the eight large groups of invertebrates?
2. Where do most invertebrates live?
3. What four characteristics are common to these group
of animals?
4. What do you call to the process of change of
invertebrate as they grow?
5. How do invertebrate animals produce a new
organism of the it species?​

Sagot :

1.Terms in this set (8)

Porifera. Sponges.

Cnidarian. Jellyfish.

Platyhelminthes. Flatworms.

Nematoda. Roundworms.

Annelida. Segmented worms.

Mollusca. Clams oysters squid snails.

Arthropods. Insects crabs lobster ticks.

Echinoderms. Starfish sea urchins sand dollars

2. Most invertebrates live in water or spend at least some part of their life in water. Some groups of invertebrates live on land. Common examples include worms, insects and spiders. These invertebrates need to have special structures to deal with life on land.

3. All animals are multicellular organisms. Their body is made up of more than one cell. Animals are eukaryotic organisms. All animals are heterotrophic in nature. Animals produce more number through the sexual mode of reproduction.

4. The young invertebrates change shape as they grow up in a process called metamorphosis.

5. Budding. Budding is a form of asexual reproduction that results from the outgrowth of a part of the body leading to a separation of the “bud” from the original organism and the formation of two individuals, one smaller than the other. Budding occurs commonly in some invertebrate animals such as hydras and corals.

1.

  • Porifera
  • Cnidarians
  • Platyhelminthes
  • Nematoda
  • Annelida
  • Echinodermata
  • Mollusca
  • Arthropoda

2.

  • Most invertebrates live in water.

3.

  • They reproduce by two reproductive cells, or gametes, coming together to produce a new organism of their species.
  • They have no cell walls, like all other animals.
  • They do not have a backbone.
  • They are multicellular. All the cells have different responsibilities in keeping the animal alive.

4.

  • Metamorphosis

5.

  • Budding