31. The appendicular skeleton includes
- A. pectoral and pelvic girdles
- B. forelimbs, skull and pectoral girdle
- C. lungs and ribs
- D. skull and the vertebral column
32. The protista that is a producer is an aquatic food chain is
- A. trypanosome
- B. paramecium
- C. chamydomonas
- D. amoeba
33. Which scenario would cause a covalent bond to form?
- A. Two atoms share electrons so they can fill their outer shells
- B. The constant motion of electrons and the creation of charge imbalances bonds two molecules together
- C. A hydrogen atom with a slight positive charge is attracted to a negative charge of another molecule or atom
- D. One atom loses one or more electrons and the other atom gains one or more electrons
34. The difference in structure, morphological and behavior of plant and animal is called
- A. adaptation
- B. evolution
- C. variation
- D. succession
35.
Use the diagram to answer the question that follows
The structure is adapted for
- A. omnivores
- B. herbivores
- C. canivores
- D. omnivores and canivore
36. The product after the union of the male and female gamete in animals is called
- A. sperm
- B. egg
- C. embryo
- D. zygote
37. 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
38. The lungs of the lung fish is an adaptation for respiration _______?
- A. to complement gills while in water
- B. to complement gills while on land
- C. while on land
- D. while in water
39. Which of the following is an example of active transport?
- A. Oxygen exchanging between red blood cells and liver cells
- B. Carbon dioxide exchanging between muscle cells and red blood cells
- C. Water moving out of the small intestine
- D. Sodium being reabsorbed in the kidney
40. The key event in the transition of the amphibians from water to land is the ________
- A. replacement of the gills with lungs
- B. possession of webbed limbs
- C. limbs
- D. possession of tympanic membrane
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