Multiple choice 4. global warming is slowly melting the polar ice caps and glaciers, which are made up of freshwater. marine organisms in which of the following zones of the ocean are going to be most affected by this process? (4 points)
a. organisms that live in the deep abyss of the ocean because the fresh water is more dense then the salt water and will sink to the bottom. b. organisms that live near the surface of the ocean because the freshwater is less dense then the salt water and will rise to the surface. c. organisms that live in the deep abyss of the ocean because the fresh water is less dense then the salt water and will rise to the surface. d. organisms that live near the surface of the ocean because the freshwater is more dense then the salt water and will sink to the bottom.
multiple choice 5. which property of water explains why seawater contains over 20 different elements? (4 points)
universal solvent surface tension high heat capacity high boiling point

B. Organisms that live near the surface of the ocean because the freshwater is less dense then the salt water and will rise to the surface. saltwater is denser than freshwater due to the weight of the salt it contains. Because of this organisms at the surface will face different environment that might affect them.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).