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What are Large-scale evolutionary changes that usually take place over long periods of time?
Wiki User
∙ 13y ago
Macroevolution
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoMacroevolutional changes
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How the fossils record supports the theory of punctuated equilibrium?
the fossils show massive change at one time (for instance the Grand Canyon; this massive change occurs usually from significant weather/environmental events) , and during the periods between the significant changes not much evolution (changes in genetic expression/genes) occurs.
According to modern evolutionary theory genes responsible for new traits that help a species survive in a particular environment will usually?
increase in frequency
What do periods on the geologic time scale represent?
An era, in geologic terms, is a geological time period encompassing two or more geologic periods.
What environmental triggers cause animals to migrate?
Usually changes in temperature.
How do scientists use geographical distribution to determine the evolutionary relationship?
Organisms that are close geographically are usually more closely related than those that evolved in widely separated areas of the world.
What is the difference between an accident and a disaster?
Accident is one which occurs in a particular area and confined to the limits whereas disaster is an accident spreading to neighbouring areas and usually occurs in largescale.
What is adaptation in biology?
In bio, adaptation usually refers to an evolutionary change an organism has made to better suit its environment. This change is a process and usually takes thousands of years. Evolutionary adaptation is not to be confused with acclimation, which is when an organism simply gets used to its environment during its lifetime and makes no evolutionary changes.
Why have you missed your last 2 periods if your usually regular?
If you're usually regular, there could be a number of reasons you missed your last 2 periods. The most likely reason is that you are pregnant. However, if you have ruled out pregnancy, stress, illness, diet, and hormonal changes could all be culprits. See your doctor to find the cause and treat the problem.
Can you have normal periods while pregnant?
not usually because if you do have them they are usually lighter than prepregnancy.
Normal changes in late adulthood usually include a (or an)?
Normal changes in late adulthood usually include a (or an)
What models of evolution view change as occurring over a long time frame and at a relatively constant pace?
The view of evolution occurring relatively constantly over a long time frame is called gradualism. This stands in contrast to the view of long periods of stasis punctuated by relatively rapid change, usually caused by environmental change. This is called punctuated equilibrium.A modern view of evolution recognizes that both processes are at work.
When do girls usually get there periods?
About age 14, but they can get it at anytime. It is usually towards the beginning or middle of puberty.
How do you know when your periods are?
uh...yo usually feel it come out...
How man periods does a NCAA basketball game usually have?
2
How many periods are there in a day?
no one knows how many periods are in a day but a regular period usually lasts about a week or so.
How many periods do you have on Depo-Provera?
that's an answer that varies for everyone, usually your periods are lighter and shorter and can sometimes alltogether stop
What do the periods the geologic time scale represent?
Usually, they represent periods between extinction events, where a particular type of lifeform was dominant.
