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WorksheetsBiology STAAR Semester 2 Review
Total questions: 15
Worksheet time: 11mins
What characteristic will increase the fitness of an organism?
Roaches lay more eggs than most organisms to ensure some offspring will live long enough to reproduce
Animals grow longer fur in the summer to ensure warmth
Animals decrease in speed as they age
Hydrotropism is the response of plants to water. What aids plants reach water since they are unable to move?
Leaves
Flowers
Root hairs
Stamen
What would happen if you added another animal that eats carrots? Select two.
Rabbits would have increased competition
Rabbit population could decrease due to less resources
Mice would eat carrots too
Rabbits would eat the competitor until it is extinct
Physical similarities between two different organisms can signify...
nothing
a common ancestor
they have a similar diet
they live in the exact same environment
Natural selection:
the process where well-adapted organisms have a better chance of surviving and reproducing
the process where poorly-adapted organisms have a better chance of surviving and reproducing
the process where organisms do not change over long periods of time
the lack of evolutionary mechanisms have taken place
When Victor finished playing soccer one hot afternoon, he was covered in sweat. Which body systems are involved? Select two.
Integumentary
Endocrine
Digestive
Excretory
Which organisms would be the most related/similar to each other?
Orangutans & humans
Gorillas & Chimpanzees
Bonobos & Orangutans
Humans & Chimapnzees
The vascular system of plants aids in-
protection
transport of food and water
photosynthesis
response to predators
The kingdom Plantae is unique because-
it is exclusively heterotrophic
it contains no nucleus
it is exclusively autotrophic
it is the only kingdom to contain a nucleus
A secondary consumer is eaten by a tertiary consumer. If the secondary consumer contains 39.1 J, how much energy will go to the tertiary consumer?
Monarch larvae feed on milkweed. Recently, there has been a decrease in milkweed. What do you think is likely to happen to the monarch larvae if the milkweed supply runs low?
Monarch larvae will decrease
Monarch larvae will not be affected
Monarch larvae will increase
Monarch larvae will move to another area to find milkweed
During primary succession, pioneer species break down rock and create soil. How will this impact the environment?
Can increase the number of predators in an area
Can lead to an increase in new plant species that are able to grow
Can cause further erosion of land
Can create less attractive places for plants to grow
The image shows the evolution of a horse over time. This image shows us that evolution-
occurs quickly
occurs sporadically
occurs slowly
occurs only during specific seasons
The image is an example of a/n
organism
cell
population
community
What are the benefits of having a standardized taxonomic system? Select 3
Prevents confusion
Prevents misnaming
Prevents languages other than English from being used to name organisms
Allows for proper communication between scientists
