WorksheetsBiology STAAR Writing Practice
Total questions: 29
Worksheet time: 36mins
What is a fitting description for this diagram?
Use the diagram to answer the question in a complete sentence.
The Mayfly is a food/energy source for which organisms?
It shows the FLOW of energy from one organism to the next.
It shows HOW much energy flows through a food web
It shows the MEMBERS in a single organism
The deer, grasshopper, and bird are all examples of primary consumers on this food pyramid. What is another description for the way they obtain energy?
decomposers
omnivores
carnivore
herbivore
Put this food chain in the correct order
Grass
Rabbit
Snake
Hawk
Select every organism that counts as a secondary consumer (some organisms can be both a secondary and tertiary consumer)
What does the arrow in a food chain represent?
Match each organism with the correct trophic level
Producer
Grass
Primary Consumer
Squirrel
Secondary Consumer
Insect Eating Bird
Apex Predator
Mountain Lion
Decomposer
Bacteria
Match the trophic level with the producer/consumer
Trophic Level 1
Producer- Autotrophic
Trophic Level 2
Primary Consumer
Trophic Level 3
Secondary Consumer
Trophic Level 4
Tertiary Consumer
Trophic Level 5
Apex Predator-Quaternary Consumer
Match the producer/consumer level with what they eat
Producers
Sun, water, CO2
Primary Consumers
Herbivores
Secondary Consumers
Carnivores
Tertiary Consumers
Omnivores
Apex Predators
Can eat anything below them
How much energy is passed along every trophic level increase?
50%
25%
100%
10%
In your own words, what is the best explanation of a food web?
In your own words, what is the best explanation of an energy pyramid?
Label the parts of the DNA strand:
A. (a)
B. (b)
C. (c)
D. (d)
Protein synthesis means "to build" proteins. Place the following terms in order from start to finish in the process of protein synthesis.
DNA
Transcription
mRNA
Translation
Protein
The sequence of nitrogenous bases in DNA varies from organism to organism. Why is the sequence of bases in DNA most important?
It provides the instructions for the traits of an organism
Allows the DNA to have the shape necessary for replication
Prevents mutations from occurring during DNA replication
Helps form the sugar-phosphate backbone of DNA molecules
Which type of mutation is illustrated in the image below?
substitution
insertion
deletion
frameshift
Which type of mutation is demonstrated in the image below?
missense
nonsense
insertion
deletion
Somatic cell mutation affects the (a) .
Gamete cell mutation affects the (b) .
Match the following Mutations
Deletion
Entire sequence shifts to the left
Insertion
Entire sequence shifts to the right
Substitution
One Nucleotide is swapped for another
Point
Only one nucleotide is affected
Frameshift
More than one nucleotide is affected and entire sequence shifts
Match the following Mutations
Missense
Causes chance in amino acid sequence ; results in different protein
Nonsense
Causes an amino acid to change into a "STOP" codon
Silent
Has no effect on amino acids or proteins
What type of mutation is this?
Point
Frameshift
What type of mutation is this?
Substitution
Deletion
Insertion
What type of mutation is this?
Nonsense
Missense
Silent
Muscular dystrophy (MD) refers to a group of genetic disorders whose major symptom is muscle wasting. The genetic disorder occurs because of a mutation in the gene sequence as seen in the image below. Which type of mutation is shown in the image?
Point Mutation
Frameshift
Nonsense
Missense
If more than one nucleotide are affected in a frameshift mutation, can this change an amino acid made? How many?
Yes, only one
No, none
Sometimes, possibly many
What is the difference between the effect of a point mutation and a frameshift mutation?
