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In a dichotomous key, what step do you always start back on after identifying an organism?
Step 1
What is the purpose of a dichotomous key?
identify an unknown organism
Name one disadvantage to asexual reproduction.
NO genetic diversity- offspring identical to parent
Name one disadvantage to sexual reproduction.
slow process, mate require, reproduce less often
Name one advantage to sexual reproduction.
genetic diversity (differences due to a combo of genes from both parents)
Name one advantage to asexual reproduction.
quick process, no mate required, reproduce often and easily
How an organism is organized is... (hint: # of)
unicellular or multicellular
Organisms in this kingdom are all autotrophic and can reproduce both sexually and asexually.
Plant (Plantae)
If an organism is a heterotroph, eukaryote, can move from place to place and reproduce sexually, name that kingdom.
Animal (Animalia)
In order for 2 organisms to be most closely related, their taxons would...?
They would have many taxon levels in common to show similar characteristics
In a grocery store items are classified how?
Similar items can be found on the same aisle.
What are the rules for correctly writing the scientific name?
Capitalize the Genus; do NOT capitalize the species; underline the whole thing OR put it in italics
The Genus and the Species make up the organism's?
scientific name
Eukaryotes all have DNA inside the?
nucleus
Prokaryotes are...(describe them in 3 statement/characteristics).
unicellular, no nucleus, very small, simple, reproduce asexually (ex: Eubacteria or Archaebacteria kingdoms)
How do autotrophs get their food?
Go through photosynthesis, use light energy from the Sun, to make their own food.
What function does flagella serve for prokaryotic organisms?
for movement
DNA is found in the cells of all living things. This genetic material contains the...
blueprint for life
Define a cell.
Basic unit of life; contains all materials necessary for life; membrane-covered structure
Binary fission is how bacteria reproduces asexually. What is true about asexual reproduction regarding the number of parents and offspring?
One parent creates genetically identical offspring to the parent- 2 total
Which of the following is NOT a biotic factor? pavement, a bush, grass, ants
pavement- (rock-concrete)
Organisms that live in the deepest depths of the ocean where it is really cold must be able to maintain a stable internal environment inside their bodies. This is an example of?
homeostasis
What is the purpose of a decomposer like fungi and bacteria?
To rid the Earth of waste, so that it is not buried in it. They break down dead things.
Biotic organisms must meet the 9 characteristics that all living things share. Which of the following does NOT belong? DNA, cell (s), movement, obtain and use energy, adapt to environment, maintain homeostasis, excrete waste.
movement- moving from one place to another
A consumer, also called a heterotroph does NOT make their own food. How do they get the energy they need to fuel life's processes.
Eat others, they reply on hunting and such to consume/eat other organisms