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What two things must an organism be able to do to be considered a species?
KikiMagic
-Produce fertile offspring
-Successfully interbreed
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∙ 11y ago
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What information can be gained from classifying living organisms?
- how many know species are there ? - what are the defining characteristics of each species ? - what are the relationship betwee these species
Why might a geographic barrier such as a large river cause the formation of a new species of small rodents but not a new species of birds?
Geographic barrier is the barrier which cease the movement of any organism through it. Now as rodents which are not able to cross the river stay apart and develop into different species whereas the as the birds are able to fly the can cross this barrier and can cross with the birds of other part which did not lead the formation of new species of birds.
What is ecological amplitude?
Also known as ecological valence, the degree of adaptation of a living organism to changes in its environment. A species trait, ecological amplitude is expressed quantitatively as the range of environmental changes within which a given species is able to carry on its normal vital activities.
Scientists have been able to produce certain substances by adding the genetic information of one species to another Which term represents an organism that carries genetic information from more than o?
Transgenic
Can some DNA mutations be beneficial to an organism?
Gene mutations may have positive or negative effects. Without "positive" gene mutations, a species would not be able to improve itself over time, in order to make it more it more adaptable to its environment. "Negative" gene mutations, by their very nature and definition, tend not to be able to survive in their environment.
What life function is necessary to the species but not the individual organism?
Reproduction
What information can be gained from classifying living organisms?
- how many know species are there ? - what are the defining characteristics of each species ? - what are the relationship betwee these species
Does an organism have to show all eight signs of life to be considered living?
Yes. An organism has to be alive.The organism must be able to/have:1) regulate its temperature2) grow and develop3) metabolism4) respond to stimuli5) reproduce6) evolutionary adaption
What does an organism need to carry out to be considered living?
A living organism needs to be able to grow and develop, use energy, get rid of waste, reproduce, and adapt of changes in an environment.
What is a model organism?
A model organism is a species studied fervently by scientists in the hopes of the results being able to be carried over to other organisms. For instance, rats are studied and experimented on, with the results carrying over to humans.
If something is radioactive is it toxic?
Yes some things that are radioactive are toxic. Being able to harm an exposed organism.
Must EVERY memeber of a particular species one kind of organism be able to reproduce in order for the species to survive?
No. It is not necessary for EVERY member of a species to reproduce in order for the species to survive. Consider humans. Some are infertile and can't reproduce, and some choose not to reproduce, yet the human species survives.
Describe how the organism meets at least five of the characteristics of living things?
There are seven characteristics of living things. An organism must be composed of cells, have different levels of organization, use energy, respond to its environment, grow, reproduce, and be able to adapt to their environment.
Why is hermaphrodism an adaptation to a sedentary life?
Sequential hermaphrodites occur in species where an organism is born as one sex, but later changes to the other sex. It is advantageous for an individuals of a species to be able to change its sex because it increases reproductive success.
What is a tiny organism that is Able to grow into a new organism?
Stem cells
Why do people need universal system of naming organisms?
So that all people/ scientists can be able to use the species name and be sure that everybody knows exactly which organism they are talking about.
Why might a geographic barrier such as a large river cause the formation of a new species of small rodents but not a new species of birds?
Geographic barrier is the barrier which cease the movement of any organism through it. Now as rodents which are not able to cross the river stay apart and develop into different species whereas the as the birds are able to fly the can cross this barrier and can cross with the birds of other part which did not lead the formation of new species of birds.
