Biology Questions
- Your friend Amanda suffers from a condition that reduces her blood’s ability to carry oxygen. What is the name of this condition?
- Match each scenario with the appropriate component of natural selection: Sea turtles lay approximately 110 eggs in a clutch, but only a fraction of the baby turtles reach the ocean, and even fewer survive to have their own offspring. All zebras have stripes, yet no two zebras have the same stripe pattern. The aye-aye lemur species possesses long, thin middle fingers that enable them to reach into tree holes and extract bugs for food.
- Evaluate three ways in which the media can negatively impact an individual’s beliefs and values regarding marriage.
- RNA interference is a mechanism of eukaryotic gene regulation. In this mechanism, the enzyme “Dicer” cuts dsRNA into smaller fragments called siRNA, which then form a complex with RISC to degrade specific RNA molecules. Can you explain the functions and importance of this process in gene regulation?
- Why are invasive species considered dangerous to the environment?
- What is the effect of _ on _?
- Which statements accurately describe how heat flows in foil? Check all that apply: – Heat flows in all directions. – Heat flows only from left to right. – The atoms on top of the foil absorb heat first. – The atoms near the candle absorb heat first. – Heat flows from cooler atoms to warmer atoms. – Heat flows from warmer atoms to cooler atoms.
- Read each example and identify the mechanism that influences gene pools: 1) A zebra migrates to join a different herd of zebras. 2) Competition for sunlight leads to taller trees. 3) The DNA of a snake changes to make its venom stronger. 4) A grassfire randomly sweeps through a population of buffalo and kills most of the animals.
- Which of the following bacteria does NOT cause foodborne illness: Acidophilus milk, Salmonella (Salmonella), Escherichia coli (E. coli), or Clostridium botulinum (Botulism)?
- How did the discovery of the rhesus factor affect society? Did it lead to increased patient mortality from incorrect transfusions, advancements in treatments during pregnancy to protect developing children, a decrease in the amount of donated blood used for patient treatment, or a reduction in the number of blood types?
- In the diagram showing various positions of the moon in its orbit around Earth, with the moon’s phases depicted as seen from Earth, where Earth is represented with a larger circle and the Sun is displayed to the right: In which position (A, B, C, or D) will three-fourths of the illuminated side of the moon be visible from Earth? Position A is on the left of Earth, Position B is halfway between Position A and the Third Quarter, Position C is on the right of Earth, and Position D is halfway between Position C and the First Quarter.
- Why is the roof of the Hearst Tower designed to collect rainwater? Check all that apply: 1. to reduce the amount of water dumped into the city’s sewer system 2. to replace water lost due to evaporation in the office air-conditioning system 3. to provide drinking water for the water fountains 4. to irrigate the plants and trees throughout the building 5. to humidify and cool the tower’s ten-story atrium.
- Which Punnett square illustrates a cross between two heterozygous parents for purple flowers?
- In an ecosystem where crabs prefer mussels as their food source, a population of mussels has been observed, leading to some developing thicker shells for protection. Which three statements does this adaptation suggest? 1) A change in the environment led to a new distribution of traits in the population. 2) The trait of shell thickening underwent natural selection. 3) The trait for shell thickening will not be selected in future mussel generations. 4) Half of the mussel population developed the trait while the other half did not. 5) Mussels with the shell thickening trait had a greater chance of survival.
- The map shows the allele frequency of sickled hemoglobin (HbS) and malaria endemicity in Africa. Based on this information, which statement best explains the relationship between HbS allele frequency and malaria endemicity in Africa? A) When an area is malaria-free, the HbS allele frequency is between 0 and 2.02. B) When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04. C) When an area is malaria-free, the HbS allele frequency is between 12.64 and 18.18. D) When an area is holoendemic, the HbS allele frequency is between 0 and 0.51.
- What does assessing opportunity cost involve: making choices and dealing with consequences, choosing consequences over rewards, reviewing past decisions and changing them, or minimizing profit and loss?
- What distinguishes a heart attack from heart failure? A. A heart attack results from poor blood flow, while heart failure involves a total interruption of blood flow. B. Both heart attack and heart failure result in heart tissue death, but more tissue dies as a result of heart failure. C. Heart tissue dies during a heart attack, while heart failure results in systemic oxygen deficiency. D. Heart failure results in body tissues receiving such a high level of oxygen that it becomes toxic.
- Where is the structure that contributes to women being more likely than men to get urinary tract infections, as indicated by its shorter length in women, located in the image?
- Which statement accurately describes tobacco? It is classified as an addictive drug, it decreases heart rate and blood pressure, there is a low risk of developing a stroke, or it causes the level of dopamine in the brain to decrease?
- What are the health issues associated with binge eating disorder, and how does the disorder perpetuate itself?
- Which events contributed to the evolution of life on Earth? Check all that apply: – Organisms began to photosynthesize. – The surface cooled, and water condensed. – Volcanoes added carbon dioxide to the atmosphere. – Ozone formed and blocked ultraviolet rays from the Sun. – Comets crashed into Earth, releasing water.
- What are the potential effects of domestic violence on a family?
- A person suffering from anorexia nervosa typically experiences which of the following health issues? a. low blood pressure b. thin or weak bones c. damage to internal organs d. all of the above
- Use the drop-down menus to identify the scientists who match the following descriptions: who found that animals are composed of cells, who found that plants are composed of cells, who looked at cork through a compound microscope, who declared that all living cells can only come from other living cells, and who referred to living cells as “animalcules.”
- The article lists numerous sports in which an individual can compete. In a few sentences, select an activity from the list that you believe would be the most strenuous to play and explain your choice. (Site 1)
- Match each item to the sphere of Earth in which it is located: ozone layer, fossils, rust (iron oxide), cyanobacteria. Indicate whether each item belongs to the hydrosphere, atmosphere, or lithosphere.
- Please examine this piece closely and describe your observations. Be sure to include the following principles of design in your response: balance, proportion, harmony, variety, and movement.
- Determine whether each statement is true or false according to Darwin’s theory: 1. Organisms within a population must compete for resources to survive. 2. The least-equipped organisms may not survive. 3. Over time, the inheritance of beneficial variations can change the entire species. 4. All organisms in a population are equally equipped for survival. 5. Some organisms will outcompete others.
- What can a person do to prevent barriers to exercise? Select THREE options: 1) Anticipate immediate results 2) Understand myths about working out 3) Look for inexpensive classes in the area 4) Take a physical education course at school 5) Work out by only setting long-term physical activity goals.
- Facial dimples and free earlobes are both considered dominant human traits. What are the expected phenotypes of the offspring from a female with dimples and free earlobes (DDFf) and a male with no dimples and attached earlobes (ddff)? A) 75% with dimples and free earlobes and 25% with no dimples and attached earlobes B) 50% with dimples and free earlobes and 50% with no dimples and attached earlobes C) 50% with dimples and free earlobes and 50% with dimples and attached earlobes D) 75% with dimples and attached earlobes and 25% with no dimples and free earlobes
- Match each sentence to the interacting Earth spheres: geosphere and hydrosphere, hydrosphere and biosphere, biosphere and atmosphere, or atmosphere and geosphere. Sentences: 1) Grady swims in the ocean. 2) Lena takes a deep breath. 3) Water vapor condenses on a glass. 4) Gusty winds weather sandstone in the desert.
- Determine whether each characteristic is exhibited by plants or fungi: They are heterotrophic; the cell wall is made up of cellulose; they have vascular tissues; they are autotrophic; the cell wall is made up of chitin and glucans; they lack chlorophyll.
- Match each environmental change with its description: (A) biomagnification (B) acid rain (C) eutrophication (1) Chemicals react with water and oxygen that enter the water system. (2) Nutrients in excessive amounts enter water systems, causing algal blooms. (3) A high concentration of toxic chemicals is present in the bodies of animals at the highest trophic levels.
- Determine whether the following descriptions apply to landfills, incinerators, or both: generates ash, can generate energy, emits toxins through combustion, drains liquids into the ground, releases greenhouse gases, requires a substantial amount of land.
- Describe four features of bacteria that enable them to survive in a wide variety of habitats.
- The map shows an island arc in Alaska named the Aleutian Arc. What does this arc suggest about the surrounding geographic region? Is it that the region lies on a transform boundary, is affected by a subduction zone, has a hot and humid climate, may have active volcanoes, or is close to a convergent boundary?
- Which possible outcome would not support the hypothesis that changes in the type of available food affect the frequency of beak types among birds? Consider the following scenarios: a) Generation 3 has 33% of all three bird types, b) each bird exclusively eats only one type of food and does not consume the others, or c) Generation 3 has flock distributions similar to those shown in the graph below.
- An organism has two different possible traits, A and B. A graph of the population is shown on the right. Which of the following statements is true about Trait B? Check all that apply: It decreased in frequency over time, It became extinct, It is carried on a recessive allele.
- Draw an mRNA strand that is complementary to the DNA strand AATTGC. Circle one nucleotide.
- If a dog has 72 chromosomes, how many daughter cells will be produced during a single cell cycle, and how many chromosomes will each of these daughter cells contain?
- What is the effect of crop selection for pest resistance on the taste and texture most preferred for human consumption?
- How would you create an action plan to improve flexibility for two friends, Jose, a gifted athlete, and Jessie, who lives a sedentary lifestyle? Consider factors such as specific exercises, frequency of exercise, current conditioning levels, flexibility levels, goal setting, and any other important considerations in your response.
- Can you complete the diagram shown on the right by identifying each missing label?
- An obese adult male has been diagnosed with type 2 diabetes. Which piece of research evidence best supports this diagnosis? a. Adults have a higher risk of developing unhealthy outcomes when they are obese. b. The prevalence of obesity tends to decrease from youth to adulthood. c. Adult men who are obese are diagnosed with type 2 diabetes at a significantly higher rate than adult women who are obese. d. Adults who continually make poor eating choices have a lower risk of developing chronic diseases.
- How do you divide each flock’s total pieces of food by 300, the total number of pieces of food eaten, and then multiply the food percentage for each flock by the total number of birds, which is 32, 180, and 88?