Answers Graded A+
Two different populations of birds live in the same area and eat the same types of food. Which
most likely describes the relationship between these two populations of birds?
A. competition
B. mutualism
C. parasitism
D. predator-prey Competition
What will most likely happen if the human population continues to grow at current rates?
A . There will be fewer natural resources available for future generations.
B. There will be an increase in nitrogen levels in the atmosphere.
C. There will be a decrease in water pollution.
D. There will be an increase in the number of strong hurricanes. There will be fewer
natural resources available for future generations.
,A strand of DNA has these bases:
AGC CAT GTA TAC
What is the complementary DNA strand?
A. ACG GAT CTA TAG
B. TCG GTA CAT ATG
C. TGC CTA GAT ATC
D. UCG CUA CAU AUG TCG GTA CAT ATG
Which statement best describes the relationship that exists among proteins, DNA, and cells?
A. Proteins combine to produce cells, which produce DNA.
B. Proteins are made up of DNA, which determines the cells that are produced.
C. DNA is made up of proteins, which tell a cell how to function.
D. Cells contain DNA, which controls the production of proteins. Cells contain DNA,
which controls the production of proteins.
, Why is meiosis important for sexual reproduction?
A. It allows the zygote formed from fertilization to have triple the chromosome number of the
organism.
B. It allows gametes to have twice the original number of chromosomes of the organism.
C. It allows gametes to have half the original number of chromosomes of the organism.
D. It allows the zygote formed from fertilization to have half the original number of
chromosomes of the organism. It allows gametes to have half the original number of
chromosomes of the organism.
Which process produces the most variation within a species?
A. asexual reproduction
B. sexual reproduction
C. mitosis
D. cloning sexual reproduction
Which technique would most likely be used by forensic scientists?