Life's Baseline Needs & Reactions
A loud noise that makes a rabbit run into its burrow is an example of this.
What is a stimulus?
Organisms that can make their own food using energy from their environment.
What are autotrophs?
The scientific study of how living things are classified.
What is taxonomy?
The gradual change in a species over a long period of time.
What is evolution?
Paired statements about an unknown organism's physical features used to identify it.
What is a taxonomic key (or dichotomous key)?
Sweating when you get hot or shivering when you get cold are ways your body maintains this internal balance.
What is homeostasis?
Organisms like animals and fungi that must consume other living things for energy.
What are heterotrophs?
he broadest, largest level of scientific classification.
What is a Domain?
The scientist whose theory of evolution revolutionized modern classification systems.
Who is Charles Darwin?
To identify an unknown organism using a key, you must examine these features.
What are physical characteristics (e.g., shape, size, color, texture)?
This term describes an organism made up of many cells working together.
What is multicellular?
The Kingdom that includes ONLY multicellular heterotrophs.
What is the Animal Kingdom (Animals)?
he two levels of classification that make up an organism's scientific name.
What are Genus and Species?
The two domains of life that consist entirely of single-celled prokaryotes without a nucleus.
What are Bacteria and Archaea?
In a candy taxonomic key, you might split chocolate and gum based on this texture quality.
What is chewiness / hardness (or wrapper type)?
This dense control center inside a cell holds its DNA.
What is the nucleus?
Mushrooms, molds, and mildew belong to this kingdom.
What is Fungi?
If an owl and a bat share a kingdom and phylum, but an owl and a robin share a kingdom, phylum, and class, the owl shares more characteristics with this bird.
What is the robin?
If alligators and crocodiles are classified in the same Order, it means they likely share this evolutionary connection.
What is a common ancestor (or common evolutionary history)?
The main reason scientists use taxonomic keys as tools.
What is to easily identify unknown organisms based on observable traits?
The mistaken idea that living things can arise from nonliving sources, which Redi and Pasteur disproved.
What is spontaneous generation?
Early organisms on Earth lived here and used chemical energy rather than oxygen to get food.
What are the oceans (or aquatic environments)?
As two organisms share more classification levels, this happens to their relationship.
What is they share more characteristics / are more closely related?
Humans could not survive on a planet with Earth's early atmosphere mainly because it lacked this gas.
What is oxygen?
A plant bending toward sunlight is an example of a response to a stimulus, but a horse eating grass to get energy proves it is this, NOT an autotroph.
What is a heterotroph?