Which of the following invertebrates DOES NOT possess antennae?

Here are the answers to the questions:

1. The mouth parts of the housefly are adapted for...

   • Houseflies have sponging-sucking mouthparts.
   • A. lapping and sponging

2. The male toad differs from the female by having...

   • Male toads possess vocal sacs for croaking, which are absent in females.
   • A. vocal sacs

3. Mosses, liverworts and ferns can be grouped together because they...

   • Mosses (Bryophytes) and ferns (Pteridophytes) are both groups of plants that do not produce seeds.
   • C. are seedless plants

4. Spirogyra and Mucor can be grouped together as Thallophyta because they...

   • Thallophytes are characterized by a simple, undifferentiated plant body called a thallus. Both Spirogyra (alga) and Mucor (fungus) exhibit this characteristic, often with filamentous structures.
   • E. their bodies are made up of thallus and filaments alternatively.

5. Which of the following invertebrates DOES NOT possess antennae?

   • Centipedes, crustaceans, millipedes, and insects are arthropods that possess antennae. Spiders (arachnids) do not have antennae; they have pedipalps and chelicerae.
   • E. Spider

6. Which of the following is INCORRECT? The prothallus of a fern is a flattened heart-shaped structure. It is green because its cells contain chloroplasts. It is the dominant plant. It bears numerous rhizoids. The sexual organs are attached to the ground by numerous rhizoids.

   • The prothallus (gametophyte) of a fern is not the dominant plant; the sporophyte (the leafy fern plant) is the dominant generation.
   • C. It is the dominant plant.

7. Which of the following cell constituents is NOT common in both plants and animals?

   • Chloroplasts are organelles found in plant cells (and some protists) for photosynthesis, but not in animal cells. Mitochondria, ribosomes, Golgi apparatus, and vacuoles are found in both.
   • B. Chloroplasts

8. The character-producing factors in living organisms are...

   • Genes are the fundamental units of heredity that determine specific traits or characters in living organisms.
   • E. genes

9. A mixture of mercurous and mercuric nitrates is added to a food substance. A white precipitate is formed which on gentle heating turns red. The food substance is...

   • This describes the Millon's test, which is used to detect the presence of proteins.
   • A. protein

10. The mammalian organ through which nourishment and oxygen diffuse into a developing embryo is called...

    • The placenta is the organ responsible for the exchange of nutrients, oxygen, and waste products between the mother and the developing embryo/fetus.

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