Exam 1: The Scientific Study of Life

A plant is a

Organisms that obtain energy by eating nutrients that make up other organisms are called

From smallest to largest scale of complexity,which is the correct sequence for levels of biological organization within an organism?

In an experiment designed to determine if a fertilizer increased crop yield in tomato plants,the number of tomatoes produced by each plant would be the independent variable.

Which of these statements best expresses the common linkage among the life characteristics met in all organisms?

Which of the following is not true about a hypothesis?

Which is the correct sequence of steps in the scientific method?

In an experiment designed to determine if a fertilizer increased crop yield in tomato plants,the amount of sunlight and water the plants received would be standardized variables.

Which is the correct sequence for levels of biological organization occurring beyond the individual?

The "Kingdom" is the most all-inclusive taxonomic category.

One researcher,Gregor Mendel,studied the genetics of pea plants related to flower colors,pea colors,pea pod shapes and other features of the plant.He numerically modeled the results he observed and published results,which eventually led to our basic understanding of how biological traits are passed to new generations of organisms.This was before biologists had even identified DNA and chromosomes.His work,however was largely rejected for over thirty years,partly for minor record-keeping errors,and partly for the new approach of defining reproduction of organisms in terms of numerical probabilities.This demonstrates that

Charles Darwin,after observing variability among plant and animal species in various locations,proposed an explanation for what he saw.The broad proposal included reasons that species could be modified through genetic variation,leading to measurable similarity and difference.Evidence for the proposal came from biological,geographic and geological observations.His proposal allowed for prediction of new species that might be found in new settings,based on environmental conditions.Darwin's proposal is an example of

The correct sequence going from smallest to largest is

"The most restrictive taxon" and "the ability to breed only among themselves" reference

You perform an experiment in which you take 16 pots of strawberry plants and give half of them 1 gram of ammonium nitrate per liter of water and the other half just get water. Each group is then split in half again, and exposed to either 8 or 16 hours of light each day. You monitor the height of the plants for four weeks. You observe that increasing ammonium nitrate and light both increase plant height. -In this experiment,the molecule ammonium nitrate is acting

A college student has a new job,and must balance classes and commute times to work.The student takes two weeks to drive from campus to the workplace by several routes,including a direct route through town,a highway route,and a route through a city park.Comparing the drive times,affected by the route,speed limits and intersections is possible.The dependent variable is the

An ecosystem would include all of the following except

A golfer wants a new set of clubs to improve her game.In an experiment,she goes to the driving range and compares the distance she hits a bucket of golf balls with drivers of different materials in the head before making her purchase decision.In this simple experiment,the independent variable is the

Researchers can readily extract DNA from one organism and merge that DNA into another organism,applying genetic engineering as a possible cure to cancer or muscular dystrophy and other diseases.The scientific method can test a hypothesis to determine if this approach is morally right or wrong.

Organisms that make their own nutrients by capturing energy from nonliving resources (solar energy)are called