Cumulative Exam — Cumulative exam Answers

Some factors that contribute to a person’s optimal personal health include nutrition, exercise, and genetics. Please select the best answer from the choices provided

Cory recorded the following values when he measured the length of leaves from one tree.Length in centimeters: 8, 11, 9, 10, 10, 9, 6In what range of data is the length of the next leaf that Cory measures most likely to fall?

Which of the following is an example of adaptive radiation?

Koala are a specialist species because they _______. a. only eat eucalyptus leaves b. are marsupials c. live in trees d. eat leaves Please select the best answer from the choices provided

An individual’s health is affected by their environment and personal genetic makeup.

Which of the following is not true about plants?a.their leaves absorb red and blue light, reflecting only the yellow and green lightb.light is a plant’s energy sourcec.photosynthesis occurs in chloroplastsd.photosynthesis occurs in mitochondria

Which of the following groups of individuals is at the highest risk for environmentally induced health risks?a.infantsb.teenagersc.college studentsd.adults

A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of limiting factor causes this?

Which of the following statements about biodiversity is true? a. Changes to biodiversity always positively affect an ecosystem. b. Changes to biodiversity always negatively affect an ecosystem. c. Changes to biodiversity can positively and negatively affect an ecosystem. d. Changes to biodiversity never affect an ecosystem. Please select the best answer from the choices provided

In an experiment to test a new drug’s effectiveness, one group is given a larger dosage than is typically prescribed, and a second group is given a smaller dosage than is typically prescribed. Then, the results of the groups are compared to each other. What is missing that would improve this scientific design?

How can an increase in biodiversity lead to an increase in ecosystem stability?a.A more biodiverse ecosystem is not subject to change.b.A more biodiverse ecosystem has a higher chance of adapting to species changes.c.A more biodiverse ecosystem has fewer species types to balance.d.A more biodiverse ecosystem is subject to fewer natural disasters.

R-selected species have a short life span and an early reproduction cycle.

How can the use of biotechnology lead to an increase in soil conservation practices?a.Biotechnology use can lead to a decrease in pesticide and herbicide use, maintaining soil quality.b.Biotechnology use can lead to soil compaction, preventing erosion.c.Biotechnology use can increase the amount of management required for agriculture, increasing the likelihood of the practice of soil conservation.d.All of the above

Many scientists are concerned that the Ogallala aquifer in the United States is being depleted at an alarming rate. What would most likely be a major effect of this aquifer running dry?

Which data could most likely be accurately replicated by other scientists?

The lava released by a volcanic eruption separates two populations of a species of monkey. What does this represent?

The figures below refer to a herd of water buffalo.Birth rate = 35 Death rate = 7Immigration = 4 Emigration = 17What is this population growth?

Small aquatic organisms, such as coral, are the producers of the ocean.

A scientist thought he might have discovered a new plant compound that would lower blood pressure in people. In his first experiment, he injected one hundred mice with the compound and found that the blood pressure in ninety-five of the treated mice was not affected. However, all of the mice seemed to grow at a faster rate then the control group. Which statement describes the most likely outcome of this investigation?