Do Now Review 1

Which of the following is a limiting factor in a population of organisms

• reproductive replacement
•  life spans of the members
• fluctuations in atmospheric temperature
• availability of food

How might cutting down the trees in a rainforest

environment affect the animals that live there?

• All of the animals that live there will perish rapidly.

• Animals will move to new areas to meet

  their needs.

• The animals will make their homes

  under ground.

• Animals that eat tree leaves

  will become carnivores.

Which major macromolecule is being represented in this image? 

• carbohydrate
• lipid
• protein
• nucleic acid

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.
  
• The optimum pH of the enzyme is 5.8
  
• The enzyme’s activity increases as pH increases 5.0 to 9.0
  
• The enzyme’s activity is greater around pH of 8.0 .
  

What type of transport is pictured here?

• endocytosis

• exocytosis

• facilitated diffusion

• osmosis

In what process is mRNA synthesized?

• Transcription

• Translation

• DNA Replication

• Mitosis

The process by which the nuclear material is divided equally between two new cells

• mitosis
• cancer
• spindle
• centromere

A mutation in which only one nucleotide is altered is called a:

• Frameshift Mutation

• Deletion Mutation

• Point Mutation

• Insertion Mutation

Mutations can benefit humans because they can:

• Cause illness

• Make an organism more suited to live in its environment.

• Make organisms live shorter lives

• Cause organisms to grow extra limbs.

Law of segregation states:

• the two alleles for each trait separate during meiosis

• the two alleles for each trait separate during mitosis

• a random distribution of alleles occur during gamete formation

• a ordered distribution of alleles occur during gamete formation