HSA Biology Public Release 2005 - mdk12

More documents

Recommendations

Info

Session 2 D irections Use the information below to answer Numbers 29 and 30. 31 BCR How is carbon related to the flow of energy between the environment and organisms? ■29 A team of marine scientists is studying biotic and abiotic factors that affect the stability of a deep-sea ecosystem. The scientists discovered a species of fish that eats other fish and decaying matter. Which of these does not describe the newly discovered fish? A B consumer predator • Name the carbon compound that is exchanged between plants and their environment. • Describe how plants use carbon from the atmosphere to create more complex molecules. • Describe how animals that eat plants change these molecules and return carbon to the atmosphere. Write your answer in your Answer Book. ■30 C D scavenger producer (4)MDB01188 The deep-sea ecosystem is a stable ecosystem. Which of these is a characteristic of most stable ecosystems? ■32 (~)MDB01042 Which of these will most likely result in variation within a species? F G H mutation succession diffusion F G H J They contain a wide variety of organisms. They contain very few organisms. Organic nutrients are in short supply. Sunlight is not used to make food. J competition (1)MDB01517 (1)MDB01185 Biology Public Release 2005 Page 22 Copyright © 2005 by Maryland State Department of Education.
Session 2 ■33 Cells in the stomach produce pepsin, an enzyme, to help digest food. Pepsin works best at a pH of 2. Which of these graphs most likely shows what will happen to the activity of pepsin as the pH of the stomach is increased? A EFFECT OF pH ON PEPSIN ACTIVITY C EFFECT OF pH ON PEPSIN ACTIVITY Pepsin Activity 0 1 2 3 4 pH B EFFECT OF pH ON PEPSIN ACTIVITY Pepsin Activity Pepsin Activity 0 1 2 3 4 pH D EFFECT OF pH ON PEPSIN ACTIVITY Pepsin Activity 0 1 2 3 4 0 1 2 3 4 pH pH Biology Public Release 2005 Page 23 Copyright © 2005 by Maryland State Department of Education.
Page 1 and 2: BIOLOGY Public Release 2005
Page 3 and 4: Session 1 Sample A Which of these i
Page 5 and 6: Session 1 ■3 The table below show
Page 7 and 8: Session 1 D irections Use the infor
Page 9 and 10: Session 1 ■9 The energy required
Page 11 and 12: Session 1 ■10 According to the pa
Page 15 and 16: Session 1 17 BCR Scientists are stu
Page 17 and 18: Session 1 ■21 Which of these orga
Page 21 and 22: Session 1 ■27 Hemoglobin is an im
Page 23: Session 2 Biology Public Release 20
Page 27 and 28: Session 2 ■34 Hydrothermal vent c
Page 29 and 30: Session 2 38 BCR Galactosemia is an
Page 31 and 32: Session 2 ■41 Which of these is p
Page 33 and 34: Session 2 ■42 Coyotes and gray wo
Page 35 and 36: Session 2 48 BCR Mammals are expose
Page 37 and 38: Session 2 ■53 A researcher recent

HSA Biology Public Release 2005 - mdk12

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?