Lab 1

Question 1

Observation

Answer 1

Any information gathered through at least one of your senses

Question 2

Inference

Answer 2

Assumption that is based on observations and past experiences

Question 3

Hypotheses

Answer 3

Scientists use inferences that is grounded in observation to form tentative explanations

Question 4

How are hypotheses tested

Answer 4

Experiments

Question 5

Theory

Answer 5

Powerful explanation supported by multiple hypothesis and holds highest esteemed rank in lexicon of science

Question 6

A hypothesis needs to have

Answer 6

Predictive power

Question 7

Evidence is the product of

Answer 7

Interpretation of data

Question 8

Six criteria

Answer 8

Consistency : the same when performed by other investigators

Observable: can be observed and explained by human senses and if not them controlled conditions to reproduce effect

Natural: natural cause used to explain why

Predictable: natural cause can be used to make predictions which can be tested

Testability: testable

Tentative: must be able to be revised and corrected

Question 9

Reliability test

Answer 9

Data collected and interpreted by human - peer review

Correlational relationship from causational relationship observations from inferences

Measure of variation (standard deviation)

Supported with evidence and evidence has to be justified

Question 10

Evidence justification

Answer 10

Is it appropriate to answer research question

Was data collected appropriately with precision

Have variables been measure for large enough sample

Is generalizability of the claim restricted to the sample population

Question 11

Organisms must do what to stay alive

Answer 11

Maintain homeostasis or a stable internal environment despite changes

Sense and respond to stimuli

Obtain and use energy

Question 12

Fight or flight nervous system response

Answer 12

Stressful stimuli activate nerve cells in hypothalamus which stimulates nerve cells in adrenal gland to signal release of adrenaline and norepinephrine

Question 13

Short term response of fight or flight

Changes flow pattern

Answer 13

Increase in glucose in the blood 
Increase in blood pressure 
Breathing rate
Heart rate
Metabolic rate (prepare for action)
To move blood where needed like brain for alterness and muscles for reaction

Question 14

Central nervous system

Answer 14

Brain and spinal cord

Question 15

All nervous tissue is

Answer 15

Peripheral nervous system

Question 16

PNS is made up of

Answer 16

Somatic nervous system - voluntary controls conscious actions
Automatic - involuntary like heart muscle

Question 17

Autonomic nervous Yates two different sets of neurons

Answer 17

Parasympathetic stimulate activity that conserve energy

Sympathetic prepare body for energy consuming activities

Question 18

Sensory neurons

Answer 18

Convey info inside and outside body to CNS

Question 19

Motor neurons

Answer 19

Control contraction of skeletal muscle in response to CNS

Question 20

This who lack a nervous system have

Answer 20

Nerve nets