Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
32 Cards in this Set
- Front
- Back
|
Living things contain these organic molecules
|
Proteins
Carbs Lipids Nucleic Acids |
|
|
Living things are composed of____
What are the two types of these |
Cells
Unicellular and Multicellular |
|
|
Where do cells come from
|
pre-existing cells
|
|
|
Define Biology
|
the study of living things or organisms
|
|
|
metabolism
|
all chemical processes taking place within cells of living organisms
|
|
|
living things grow and reproduce
|
continue species through reproduction using gene material
|
|
|
cell
|
the smallest functional unit of life
|
|
|
living things must obtain ____&____ from the environment
|
energy and nutrients
|
|
|
living things respond to _____ by doing what
|
stimuli by sensing changes in the environment and responding to them
|
|
|
How do plants obtain energy and nutrients?
|
Plants maintain energy from the sun and obtain nutrients from the soil
|
|
|
Stimuli
|
change causes a response in an environment
|
|
|
living things maintain homeostasis
|
living things maintain homeostasis
|
|
|
homeostasis
|
the ability to maintain a steady state of equilibrium in the internal environment
|
|
|
external environments
|
conditions outside the body
|
|
|
internal environments
|
conditions inside the body
|
|
|
homeostatic mechanisms
|
processes inside your body to regain or maintain homeostasis when you are faced with stresses that push us out of range
|
|
|
what age group has the most homeostatic problems
|
infants and the elderly
|
|
|
Four reasons that Infants have problems maintaining homeostasis
|
1)Small body size
2) homeostatic mechanisms not fully functioning 3)cant act on signals, they need help 4)dont always sweat enough to cool them down |
|
|
Why do the elderly have problems maintaining homeostasis
|
they gradually lose their sensitivity to coldness as they get older
|
|
|
populations of living things _____and have ________ traits
|
Evolve
adaptive |
|
|
How does each population have the ability to be successful(live and reproduce)
|
Through Natural selection
|
|
|
Adaptive traits
|
genetic traits (determining structure and function ) that help an organism be successful
|
|
|
Natural selection
|
Means by which over millions of years, organisms evolved to have certain traits
|
|
|
Adaptations
|
lead to biodiversity
|
|
|
Levels of Biological Organization
|
Molocule
Cell tissue Organ Organ system Organism --------------- Ecology |
|
|
What is required to maintain organization
|
Energy
|
|
|
Levels of Biochemistry
|
Biochemistry/ molecular biology
cytology histology anatomy and physiology |
|
|
How are structure and function related?
|
How something is structured depends on what it needs to do to correctly function
|
|
|
3 Ways we can consider Biology a science
|
1) Science is Objective not subjective
2) Helps humans understand the natural world. 3) Conclusions may change or modify. |
|
|
Objective
|
observed using senses
factual measurable |
|
|
Subjective
|
Personal Opinion
Values Bias |
|
|
Steps of the scientific method
|
Observe
Hypothesize Analyze report or publish |
