Cells Flashcards
What did JANSEN come up with?
The first compound microscope and first telescope
What did LEEUWENHOEK come up with?
Further developed the microscope after JANSEN, and discovered bacteria when looking at his teeth
What did HOOKE come up with?
Coined the term ‘cell’ after looking at a cork under a microscope
What did SCHELIDEN come up with?
Botanist that discovered plants were made up of cells
What did SCHWANN come up with?
Discovered organisms made up of cells
What did VIRCHOW come up with?
Used research to prove cells do come from pre-existing cells
What did ROBERT BROWN come up with?
Coined the term ‘nucleus’
What are the three types of adaptations?
- physiological
- structural
- behavioural
What is a structural adaptation?
A physical feature/characteristic
What is a physiological adaptation?
A biological function or process found in an organism (e.g. venom)
What is a behavioural adaptation
The way in which the organism acts
How to measure temperature
Thermometer
Read it whilst still in substance you wish to measure
How to measure pH
Using a pH meter
Put it onto substance and record the number seen
How to measure salinity (salt level)
Salinity meter
Pour substance onto meter and look through the eye piece to see where the blue line meets the white
How to measure distribution
Transect method
How to measure abundance
Quadrat method
Human impacts on the environment
- deforestation (mining, destroys organisms habitat)
- introducing a new species (could create competition for food, inter-specific competition)
- hunting (for zoos)
- collecting organisms (for zoos)
- pollution (rises ocean levels / could suffocate an organism)
- foot traffic (erosion, weathering / stepping on them, killing)
What do support services do as part of the Ecosystems services
Creates and replenishes the foundation of the earth’s biological systems
What do provisioning services do as part of the Ecosystems services
Gives us the raw materials we need to live
Rivers, aquifers
What do regulating services do as part of the Ecosystems services
Moderating many of the earth’s systems that could get dangerous if out of whack
What do cultural services do as part of the Ecosystems services
Nice scenery, places to sit, play etc
If we had to do everything the ecosystem provides us for free, how much would it cost us per year?
$46 trillion per year
How does biodiversity make the ecosystem more resilient
Because if you take away an organism from a high-biodiversity environment, it is less likely for the that ecosystem to collapse, as it most likely wouldn’t be the only source of food for many organisms, etc
What is species biodiversity
Describes the number of different species in an area
