7th Life Science Final Exam

What would be the code for the complimentary strand of DNA for GCAATCGATATTGAC

• CGTTAGCTATAACTG
• ATGGCTAGCGCCAGT
• TACCGATCGCAACTA

When 2 alleles for a trait are DIFFERENT it is called ______________

• homozygous
• heterozygous
• genotype
• phenotype

What best describes the mammals, fish, birds and plants, as well as the sun, soil, air and water in an environment? *Hint includes both biotic and abiotic

• Abiotic
• Ecosystem
• Community
• Biosphere

A close relationship between two different species that benefits at least one of the species is called ....

• natural selection
• adaptation
• symbiosis
• competition

Which table correctly identifies the relationships?

• 
• 
• 
• 

What is the water cycle?

• when water melts
• the three forms of water
• when clouds form
• the movement of water from the atmosphere to Earth and back

What "fixes" nitrogen so plants can use it?

• respiration
• plants get nitrogen from the air
• photosynthesis
• bacteria

What are the biotic factors in this image?

• elephants, plants, trees
• sunlight, water, and air
• sunlight, elephants, and grasses

What part of the ecological level of organization is represented by #2 in the picture?

• Organism
• Community
• Ecosystem
• Population

The combination of two alleles that are the SAME is called____________.

• homozygous
• heterozygous
• genotypes
• phenotypes