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MrMac Life Science

Mr Mac Life science and the charateristics of life

What are all living things called? Organisms
What is a scientist called who studies living things? Biologist
What is a scientist called who studies living things and their interaction with the environment? Ecologist
What is a zoologist? A scientist who works with and studies animals.
A scientist who studies how traits, genes and DNA are passed to offspring is called a... geneticist.
A scientist who studies tiny, little organisms is a... microbiologist.
Plant cells are different from animal cells because they have... a boxlike shape, cell wall and chloroplasts and animal cells do not!
An organism that has offspring (children) who are genetically identical to themselves reproduces how? Asexually
When an offspring is produced from 2 parents this is called... sexual reproduction
Name the six characteristics of living things. 1. It reproduces 2. It grows and develops 3. It responds to stimuli or its environment 4. It has DNA 5. It has cells 6. It uses food for energy
What are cells? The basic unit of life. Membrane covered structures that make up all living things.
Where is DNA found? Usually in the nucleus of cells. In all living things.
What is a double helix? The shape in which DNA can be found. It looks like a "twisted ladder".
Are things that were once alive called organisms? Yes, even when something dies it is still an organism.
Name some other fields/branches of biology. zoology, botany, microbiology, genetics, mycology, ornithology, cytology, virology, bacteriology, etc...
What is a unicellular organism? Give some examples. An organism that is made of only one cell. Examples are some bacteria, amoebas and many plankton.
What is a multicellular organism? Give some examples. An organism made of many specialized cells. Examples are all mammals and plants.
What are the 6 characteristics of living things we have discussed? 1.Get and use food for energy 2.Reproduce 3.Made of cells 4.Respond to environment 5.Have DNA 6. Grow and develop
What are the 2 types of reproduction? Asexual and sexual reproduction
Name ways plants respond to their environment/stimuli. Grow and turn leaves towards sunlight, close blossoms at night, drop leaves in winter and some even sense and capture insects.
What is cell theory? The cell is the basic unit of life and all organisms are made of cells.
Budding and regeneration are 2 types of which reproduction? Asexual
What are advantages of asexual reproduction? No time and energy used to find mate and easily repopulate an area with just 1 organism.
What is the main disadvantage with asexual reproduction? A lack of genetic variation.
Created by: MrMac