Evolution (regents)

idk

Certain traits become more ______ in a population through the process of natural selection

common

Natural selection acts on _______ (physical traits) rather than on genetic material itself.

phenotypes

New alleles are not made by natural selection - they occur by genetic ________

mutations

Natural selection can act on ______ that already exist.

traits

A trait that was already in the population became favorable for survival because of a change in the environment, and thus was _______ on to future generations

passed

As the environment changes, different traits will become ________

beneficial

With evolution, a trait that is an advantage today may be a __________ in the future

disadvantage

Individuals do not evolve. __________ evolve over time.

populations

Natural selection can amplify or ________ inheritable traits.

diminish

Environmental factors vary from place to place over time. A trait that is favored in one place may be _______, or harmful, in another place

useless

Natural selection is a mechanism by which individuals that have ______ beneficial ___________ produce more offspring.

inherited beneficial adaptations

Organisms with the best traits (adaptations) will _______ and _______

• survival of the fittest

survive and reproduce

When parents create a ________ of offspring, nature decides which of those variaitons survives (and reproduces) and which do not.

variety

Over multiple generations, organisms become more and more ___ for survival and reproduction wihin their specific environments.

fit

What are the four main principles to the theory of natural selection?

Variation, overproduction, adaptation, descent with modification

in variation, the heritable _________ (variations) that exist in every population are the basis for natural selection.

differences

The differences among individuals result from differences in the ______ material of the organism.

genetic

There is a struggle for survival (species tend to ________ more offspring than the environment can support).

produce

While having many offspring raises the chances that some will survive, it also results in _________ between offspring for resources.

competition

Sometimes a certain variation allows an individual to survive ______ than other individuals that it competes against.

better

More ________ individuals are “naturally selected” to live longer and reproduce offspring that share those adaptations

successful

Over time, natural selection will result in species with adaptations that are well ______ for survival and reproduction in an environment

suited

More individuals will have the trait in every following generation, as long as the environment conditions continute to remain ______ for that trait.

beneficial

The term _______ refers to the variety of living things that inhabit our planet

diversity

____________ theory - proposed that the organelles of eukaryotic cells were once prokaryotic cells that have been engulfed by a larger prokaryotic cell. (one theory of how life began)

Endosymbiotic

_______ is a change in the inherited characteristics of a group of organisms over generation.

Evolution

_________ _______ is the collection of scientific facts, observstions, and hypothesis that attempt to explain the diverstiy of life on Earth.

Evolution theory

Modern scientsit describe evolution as a _______ _______ in the characterisitics within a population from one ______ to the next.

heritable change, generation

Much of today’s understanding of evolution is based on ______ _______ work in the 1800s

Charles Darwin

Jean Baptiste ______, a French naturalist, put forward his own theory for how evolution works.

Lamark

Lamark proposed that organisms inherited changes caused by ___ or _____ in its parents.

use or disuse

Alfred Russel wallace, another British Naturalist, was a ________ of the theory of evolution.

co-discoverer