Show:
Immunity--
The war on foreign invaders
Homeostasis-- Restoring balance to your body
Mendelian Genetics-- Why you look like your mama!
Population Genetics-- Dipping in the genepool
Evolution--
A change is gonna come???
100
Which of the following is a function of the nervous system? a) releasing ATP into contracting muscle tissues b) signaling muscle tissues to contract c) producing lactic acid in fatigued muscle tissues d) increasing cellular respiration in muscle tissues
b) signaling muscle tissues to contract
100
What is my favorite color?
That's not a valid question!
100
In certain breeds of dog, deafness is due to a recessive allele (d) of a particular gene, and the normal hearing is due to its dominant allele (D). What percentage of the offspring of a normal heterozygous (Dd) dog and a deaf dog (dd) would be expected to have normal hearing? a) 0% b) 25% c) 50% d) 100%
c) 50%
100
In carrier pigeons there is a rare inherited condition that causes the death of the chicks before hatching. In order for this disease to be passed from generation to generation there must be parent birds that a) are heterozygous for the disease b) have the disease themselves c) produces new mutations for this disease d) are closely interbred
a) are heterozygous for the disease
100
A species of finch has been studied on the geographically isolated Galapagos Islands for many years. Since the island is small, the lineage of every bird for several generations is known. This allows a family tree of each bird to be developed. Some family groups have survived and others have died out. The groups that survive PROBABLY have a) interbred with other species b) inherited some advantageous variations c) found new places on the island to live d been attacked by more predators
b) inherited some advantageous variations
200
The respiratory system depends on the nervous system for signals to a) enhance the amount of available oxygen in the lungs b) coordinate muscles controlling breathing c) release enzyme to increase the exchange of gases d) exchange gases with the circulatory system
b) coordinate muscles controlling breathing
200
How do human disease caused by bacteria and diseases caused by viruses react to antibiotics? a) Neither responds to antibiotics b) Both respond to antibiotics c) Viral diseases respond to antibiotics; bacterial diseases do not d) Bacterial diseases respond to antibiotics; viral diseases do not
d) Bacterial diseases respond to antibiotics; viral diseases do not
200
If a human baby boy inherits a recessive allele form his mother, in which circumstance would he most likely show the trait coded for by the recessive allele? a) The baby inherits the dominant allele from his father b) The allele is on an autosomal chromosome and the baby is a twin c) The allele is on the X chromosome d) The allele is on they Y chromosome
c) The allele is on the X chromosome
200
A scientist observes that when a pesticide is continuously used to kill insects, the pesticide becomes less effective over a period of time. Which statement BEST explains why some insects are able to survive the sue of pesticides? a) Some individuals are able to successfully mate numerous times before dying. b) Selective individuals choose mates based on the survivability of their genetic traits c) Successful individuals mate randomly to develop biological resistance in the population d) Some individuals with more favorable genetic traits due to random mutations are able to reproduce
d)Some individuals with more favorable genetic traits due to random mutations are able to reproduce
200
Fossil evidence suggests that members of one fish species from an ancient lake in Death Valley, California, became several isolated species. Each of these new species lived in a different pond. Which of the following BEST explains the cause of this speciation? a) episodic isolation b) temporal isolation c) geographic isolation d) behavioral isolation
c) geographic isolation
300
One potential side effect of the medicines used to treat cancer is a suppressed immune system. Which condition is MOST LIKELY to occur as a result of a suppressed immune system? a) an infection caused by normally harmless microorganisms b) a rapid increase in the rate of aging c) the onset of additional types of cancer d) a decrease in the ability of nerve signals to move through the body
a) an infection caused by normally harmless microorganisms
300
What is the GREATEST danger to a patient who has damaged skin? a) loss of oils produced by the skin b) excessive muscle contractions in the damaged area c) infections in uncovered tissues d) damaged tissue entering the blood stream
c) infections in uncovered tissues
300
A small population of chimpanzees lives in a habitat that undergoes no changes for a long period. How will genetic drift probably affect this population? a)It will accelerate the appearance of new traits b) It will promote the survival of chimpanzees with beneficial traits c) It will increase the number of alleles for specific traits d) It will reduce genetic diversity
d) It will reduce genetic diversity
300
A scientist is growing a colony of a certain type of microorganism for her research. The normal form of the microorganism is red in color. Sometimes the scientist finds pink forms in the colony, even though all organisms are raised under the same conditions. When he finds pink forms, she immediately removes them from the colony. Which of the following will MOST LIKELY happen in the colony of microorganisms? a) The colony will become extinct because the scientist is eliminating genetic diversity b) Pink forms will continue to appear in the colony due to naturally occurring mutations c) The pink form will become a recessive trait that is rarely seen because it is being selected against d) Mutations that cause the pink color will no longer happen because the pink offspring are always destroyed
b) Pink forms will continue to appear in the colony due to naturally occurring mutations
300
A single species of squirrel evolved over time into two species, each on opposite sides of the Grand Canyon. This change was MOST likely due to a) higher mutation rates on one side b) low genetic diversity in the initial population c) the isolation of the two groups d) differences in reproductive rates
c) the isolation of the two groups
400
Carbon Dioxide is produced as cells break down nutrients for energy. Which of the following pairs of systems would participate in removing the Carbon Dioxide from the body? a) endocrine and circulatory b) circulatory and respiratory c) respiratory and endocrine d) reproductive and excretory
b) circulatory and respiratory
400
A signal that the bladder is full is sent to the central nervous system by a) feedback loops b) sensory neurons c) nephron tubules d) receptor proteins
b) sensory neurons
400
Scientists are deciding how to manage a large area of forest. Which change should the scientists promote to BEST help the ecosystem survive major environmental changes in the future? a) Decrease the number of predators b) Decrease the number of consumers c) Increase the variety of native species living in the forest d) Increase the genetic diversity within the most common species
c) Increase the variety of native species living in the forest
400
Mutations within a DNA sequence are a) natural processes that produce genetic diversity b) natural processes that always affect the phenotype c) unnatural processes that always affect the phenotype d) unnatural processes that are harmful to genetic diversity
a) natural processes that produce genetic diversity
400
A small population that is geographically isolated from the rest of the population runs the risk of decreased a) genetic drift b) mutation rate c) natural selection d) genetic variation
d) genetic variation
500
Adam has a bacterial infection. His body produces antibodies to help fight the infection. What is an antibody, and how does it interact with a bacterial cell? a) An antibody is an immune system cell that engulfs bacterial cells b) An antibody is a protein that is ingested by and poisons bacterial cells c) An antibody is a protein that binds to proteins on the bacterial cell surface d) An antibody is an immune system cell that binds to and marks bacterial cells
c) An antibody is a protein that binds to proteins on the bacterial cell surface (This sometimes backfires; and the body mistakes its own cells, or harmless cells as hostile. This is what causes allergies, such as milk allergies, since your body sees the antigens in the cow milk as hostile and attacks them.)
500
Which of these secretes a hormone that regulates the rate of metabolism of the body? a) spleen b) cerebrum c) thyroid d) kidney
c) thyroid
500
Mendel hypothesized that reproductive cells have only one factor for each inherited trait. This hypothesis is supported by the observation that a) haploid cells are produced by mitosis b) diploid cells are produced by mitosis c) haploid cells are produced by meiosis d) diploid cells are produced by meiosis
c) haploid cells are produced by meiosis [My happy dog dies by mites] my = meiosis hap = haploid di = diploid mites = mitosis
500
Which of these would have the LEAST effect on natural selection in a subspecies of giraffes that is geographically isolated from other subspecies of giraffes? a) available niches b) existing predators c) chromosome number d) available food resource
c) chromosome number
500
Earth has undergone some catastrophic changes from time to time. Which of these MOST likely explains why life on Earth continued following these catastrophes? a) Dominant species had a slow mutation rate b) Many species filled the same niche c) A strong species had many different characteristics d) A wide diversity of species existed
a) Humans have many mutations (polydigits, hair color, eye color, skin color,) b) This would prove the opposite, (If all the townspeople drink at the water hole, and someone poisons the water supply, all the townspeople die in agony.) c) The characteristics can be many, but if common to all it presents a vulnerability. They all share the same "weakness" and presents the same problem as answer b). d) Yes!