What is a hypothesis?

a tentative explanation that can be tested and is falsifiable

A controlled experiment....

there are at least 2 groups 1 of which is not tested

Which characterisitc is shared by all prokayotes and eukaryotes?

ability to store hereditary information

Which characteristic of life explains why birds fly south for the winter?

they respond to their environment

Why is it important to have a control group?

without one there is no basis for comparison

The amount of light and temperature are examples of

factors to which living things respond

Which example is an activity that fish most likely uses to maintain homeostasis?

exchanging gases through its gills to regulate oxygen levels

studbud

Biology 1A - Unit 1: Basics of Biology

32 termsStudBud Administration161 plays

Miller and Levine chapter 1

Flashcards32 cardsFPractice quizPHost liveL

Questions 32

Answers

1
Two cells unite to form a new cell
sexual reproduction
homeostasis
respond to environment
asexual reproduction
2
Which characteristic of life is more important to the GROUP than to an INDIVIDUAL?
growth and development
reproduction
respond to environment
evolution
3
You suggest that the presence of water could accelerate the growth of bread mold. This is a(n)
hypothesis
analysis
conclusion
experiment
4
What is a hypothesis?
a fact based on qualitative data that is testable
the same thing as an unproven theory
a tentative explanation that can be tested and is falsifiable
a fact based on quantitative data that is falsifiable
5
A controlled experiment....
there are at least 2 groups 1 of which is not tested
1 group for which the scientist controls all variables
is repeated many times to be sure the results are accurate
proceeds at a slow pace to observe reactions
6
The process by which organisms keep their internal conditions fairly constant is called
metabolism
homeostasis
evolution
photosynthesis
7
The work of scientists usually begins with
creating experiments
testing a hypothesis
drawing conclusions
careful observations
8
Biology is the study of
the environment
the living world
the land, water, and air on Earth
animals and plants only
9
Which characterisitc is shared by all prokayotes and eukaryotes?
ability to store hereditary information
ability to move in response to environmental stimuli
use of cellular respiration for energy release
use of organelles to control cell processes
10
Biology is the study of
animals and plants only
the land, water, and air on Earth
the living world
the environment
11
A controlled experiment allows the scientist to isolate and test
a mass of information
several variables
a single variable
a conclusion
12
Information that is NOT numbers is called
development
description
qualitative data
quantitative data
13
When applying the process of science, which is tested?
question
hypothesis
observation
result
14
Which of the following is NOT a characteristic of living things?
ability to move
growth and development
response to the environment
ability to reproduce
15
A control group and an experimental group are identical EXCEPT for one factor -
dependent variable
independent variable
control variable
vector variable
16
Which characteristic of life explains why birds fly south for the winter?
they respond to their environment
they are made up of cells
they are based on a universal genetic code
they maintain internal balance
17
Growth is
a change in shape
a new part
a change in function
a change in size
18
The building up or breaking down of materials through chemical reactions is called
messenger pathways
homeostasis
cell fractionation
metabolism
19
Why is it important to have a control group?
it is the one the scientist is in control of
without one there is no basis for comparison
required for development of an "if/then" statement
it provides extra experimental subjects
20
Which of these in an inference?
If I turn the key and step on the brake then my car will start
My car's battery is dead
My car won't start.
I lost my car key.
21
The amount of light and temperature are examples of
factors that affect reproduction
methods of energy production
factors necessary for life
factors to which living things respond
22
Information gathered from observing a plant grow 3 cm over a 2 week period results in
inferences
hypotheses
data
variables
23
The process by which organisms keep their internal conditions constant is called
homeostasis
photosynthesis
evolution
metabolism
24
Cell specialization allows cells to
reproduce
respond to their environment
perform different functions
be less complex
25
Which of the following is NOT a characteristic of living things?
response to the environment
ability to move
growth and development
ability to reproduce
26
Which example is an activity that fish most likely uses to maintain homeostasis?
moving to deeper water to regulate metabolic wastes
exchanging gases through its gills to regulate oxygen levels
using camouflage to avoid predators
feeding at night to regulate body temperature
27
A signal from the outside that produces a response is a
control variable
dependent variable
equity factor
stimulus
28
A hypothesis is only useful if
it can be proven incorrect
the explanation is already known
it can be proven correct
it can be tested
29
The farther a ball drops, the higher it will bounce. What is the DEPENDENT variable?
there is none
how high the ball bounces
the ball
the height from which the ball is dropped
30
The ability to reproduce results is an important part of any
experiment
law
theory
hypothesis
31
Type of reproduction in which a cell simply splits into 2
sexual
antisexual
asexual
32
A hypothesis must be
unable to be repeated
proven beyond doubt
testable
stated after the experiment

Biology 1A - Unit 1: Basics of Biology Flashcards | StudBud