Lecture 1&2 Flashcards
What is an organism
An individual; complex individuals contain organ systems
What is catabolism?
Chemical reactions that break down substances
Which level of classification is the most complex?
Domain
Level of classification order (decreasing complexity)
Domain
Kingdom
Phylum
Class
Order
Family
Genus (Uppercase)
species(lowercase)
What are genes?
Small sections of DNA that contains instructions for making a specific molecule (usually protein)
What is metabolism?
All the chemical reactions in a cell
What is the process of adaptation known as?
Natural selection
What is the smallest structural unit of an organism?
Cell
What is a population?
Number of organisms of a specific species in an area
What is anabolism?
Synthesis reactions
What is an Ecosystem?
Community + physical environment
What are the characteristic adaptations of the camel?
- Can hold up to 120 L of water at a time
- have double eyelashes- keep dust and sand out
- have wide, almost webbed feet
- urine and feces contain little water
What is a community?
Interacting populations in a certain area
Which 2 types of brain tissues mainly make up the brain?
Neural and glial
What is an organ system?
Several organs working together
What is an organ?
Group of tissues working together towards a specific task(s)
Where do cells come from?
Other cells
What is behavior?
The collective responses of an organism
What is a tissue?
Groups of cells with similar structure and function
Where does life come from?
Other life forms of the same species (usually except evolution where a new species is brought up)
Why are Life forms diverse?
Evolutionary forces
How are organisms named scientifically?
Genus species
What is the biosphere
All Ecosystems( communities + physical environments)in the universe
What is the most ‘fundamental characteristic of life?’
reproduction
