Unit 1 Exam - 1,2,33,34,35 Flashcards
(122 cards)
Which level of biological organization is composed of several tissues?
Organ
A physician specializes in surgery involving the following group of organs: mouth, esophagus, stomach and intestines. Overall, what is the highest level of organization that this physician is specialized in?
Organ System
Which sequence correctly lists the different levels of biological organization, from the smallest and simplest to the largest and most complex?
Cells - Tissues - Organs - Organ Systems - Organism
Which statement about living organisms is NOT correct?
A. Living Organisms create energy
B. Living Organisms maintain homeostasis
C. Living Organism Reproduce
D. Living Organisms have adaptations
E. Living Organisms grow and develop
A. Living Organisms create energy
Organs are composed of tissues, which are composed of cells. This is an example of which characteristic of life?
Living things have levels of hierarchical organization.
All the birds called cardinals in a forest would comprise a(n):
population
All the banded sunfish in a pond would comprise a(n)
population
Jennifer wants to use the brand of fertilizer that gives her the most tomatoes from each plant. She breaks her plants into groups and uses a different brand of fertilizer on each group. What would the experimental/independent variable be?
brand of fertilizer
Jennifer wants to use the brand of fertilizer that gives her the most tomatoes from each plant. She breaks her plants into groups and uses a different brand of fertilizer on each group. What would the response/dependent variable be?
amount of fruit produced by the tomato plants
Jeff wants to know what concentration of bleach would be most effective at killing bacteria without overdoing it and using too much bleach. Jeff makes 3 solutions of bleach ins after, 1, 5, and 10% solutions. He then adds a specific number of bacteria to a test tube of each solution and waits 3 minutes. He puts these bacterial on a petri plate and later counts colonies to see how many bacteria survived. In this experiment, the number of bacteria that were killed would be:
response/dependent variable
Jeff wants to know what concentration of bleach would be most effective at killing bacteria without overdoing it and using too much bleach. Jeff makes 3 solutions of bleach ins after, 1, 5, and 10% solutions. He then adds a specific number of bacteria to a test tube of each solution and waits 3 minutes. He puts these bacterial on a petri plate and later counts colonies to see how many bacteria survived. In this experiment, the concentration of the bleach would be:
experimental/independent variable
Which statement regarding the scientific method is FALSE?
A. A theory is an explanation of why a pattern occurs
B. Confounding variables make experiments difficult to interpret
C. Deductive reasoning is often used in the design of an experiment
D. A control group is always exposed to the factor being tested
D. A control group is always exposed to the factor being tested
When researchers test a new human cancer drug using mice, the mice constitute the:
Model
In the antibiotic experiment in the textbook, what is the independent variable?
Whether or not the patient gets one of the antibiotics or placebo
Which of the following is a way to control for confounding variables in the antibiotic experiment covered in the textbook?
A. Using many replicates
B. Allowing the person doing the endoscopies to know which subjects are controls
C. randomly assigning test subjects of different groups
D. both A and C are true
E. All of the above are true
C. Both A and B are true
A. Using many replicates
C. Randomly assigning test subjects
Which of the following is a way to control for confounding variables in the antibiotic experiment covered in the textbook?
A. using too many replicates
B. using a double blind study design
C. randomly assigning test subjects to different groups
D. all of the above
D. All of the above
A. using too many replicates
B. using a double blind study design
C. randomly assigning test subjects to different groups
Which of the following statements about the strengths of science is false?
A. Science is publicly understandable
B. Scientific theories can change as new data become available
C. Scientific theories, k once found to be true, are always true.
D. Science is capable of making measurable predictions
C. Scientific theories, once found to be true, are always true
Emerging diseases enter the human population due to:
new interactions with other organisms that can then act as vectors of disease
What is an example of “Organization?”
Cutting open many leaves from trees and examining them under a microscope you find the tissues for photosynthesis are always in the middle Layer with a protective layer of cells surrounding that leaf
What is an example of “acquiring materials and energy?”
Leaves take the energy from sunlight and perform photosynthesis, storing that energy in chemical bond on carbon atoms taken from the air.
What is an example of “Homeostasis?”
When you drink a large amount of water you have to urinate more often
What is an example of “response to stimulus?”
A moth sees a streetlight at night time and flies towards the light
What is an example of “growth and development?”
A Caterpillars metamorphoses into a butterfly
What is an example of “Adaption through evolution?”
Timer rattlesnakes, are ambush hunters found in Arkansas forests. When they are very still in the leaves on the forest floor, they are nearly impossible to see due to the colors and markings on their skin.
