43
The division of a body into two equal halves along a longitudinal plane is called
- A. bilateral symmetary
- B. transverse section
- C. radial symmetry
- D. longitudinal section
44
The structure labeled III represents the
- A. mandible
- B. palp
- C. proboscis
- D. labium
45
The structure labelled II is used for
- A. tasting
- B. feeling
- C. biting
- D. sucking
46
Which of the following is an organ?
- A. Guard cell
- B. Liver
- C. Xylem bundle
- D. Blood
47
The structure that is most commonly identified in all living cells under the light microscope is the
- A. mitochondrion
- B. chloroplast
- C. nucleus
- D. ribosome
48
The group of Arthropods that has no antennae is the
- A. Crustacea
- B. Chilpoda
- C. Arachnida
- D. Diplopoda
49
The possession of scales, laying of eggs with shells and bony structure of the head are characteristics shared by
- A. birds and reptiles
- B. fishes and birds
- C. reptiles and fishes
- D. birds and molluscs
50
The organism that has a hydrostatic skeleton is
- A. Tilapia
- B. Hydra
- C. mosquito larva
- D. earthworm