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1. Which Statement best describes how a virus repli- A virus enters a host cell
cates? and uses the materials
from the host cell to pro-
duce new virus particles.
2. Biting flies can transmit diseases and cause loss of The nervous system sens-
blood for animals in nature. Horses have developed es the biting flies and
behaviors to repel biting flies such as ear twitching, sends a signal to muscular
head tossing, leg stomping, and tail swishing. system to move.
Which statement best describes the interaction be-
tween body systems that allows horses to repel biting
flies?
3. Oil spills in the ocean affect marine food webs. Ani- The sea urchin popula-
mals that are initially affected by oil spills include sea tion would increase caus-
otters, seabirds, and other organisms that spend most ing the kelp population to
of their time on the ocean surface. decrease.
Based on the food web, how would a significant de-
crease in the sea otter population due to an oil spill
most likely affect his ecosystem?
4. Which of these shows an example of an insertion mu- D
tation?
5. In a Central Texas grassland, the producers incorpo- 1,200 kJ
rate 12,00 kj of energy from the sun into their tissues.
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, Biology STAAR LATEST VERSION 60 QUESTIONS AND ANSWERS WITH STUDY GUIDE DETAILED AND
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About how much energy would be incorporated into
the tissues of herbivores?
6. The response of the shoot system benefits the plant by reach more sunlight for
allowing the plant to - photosynthesis
7. The chemicals produced by both the white clovers and Protect against herbivores
skunk cabbages are adaptions that alllow the to -
8. Which Punnet square represents a cross that would A
produce albino offspring
9. When a stem cell divides, it produces two daughter The genes that are ex-
cells. One daughter cell will remain a stem cell, while pressed
the other daughter cell will differentiate into special-
ized cell.
which factor will most directly determine what type of
specialized cell will be produced?
10. Blue flying fish live in the upper layers of the ocean. Fish with enlarged pec-
Blue flying fish have enlarged pectoral fins that enable toral fins were able to glide
them to glide for 400 meters above the ocean surface out of the ocean to escape
and appear to fly. predators, increasing their
Which statement best describes how natural selection fitness.
led to enlarged pectoral fins in blue flying fish?
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