What is TRUE about the environment that the species lives in and about how the species will look over thousands of years?
The environment will stay the same, and the traits of the species will stay the same.
Which species is more likely to survive changes in the environment?
According to Charles Darwin's theory of evolution by natural selection, organisms that
possess heritable traits
that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
What could lead to different populations of the same species living in different environments?
For example, populations living in different ecological environments (e.g., desert versus forest habitats) might undergo
divergent and adaptive evolutionary change via divergent natural selection
. These same evolutionary changes can also result in the populations evolving into separate species.
When a species does not adapt or evolve to change in its environment it will become?
only species
become extinct
. to evolve, variations must exist in a species BEFORE the environment changes (pre- adaptation).
What must be true for natural selection to happen?
Four conditions are needed for natural selection to occur:
reproduction, heredity, variation in fitness or organisms
, variation in individual characters among members of the population. If they are met, natural selection automatically results.
What animals have been affected by climate change?
- POLAR BEAR.
- SNOW LEOPARD.
- GIANT PANDA.
- TIGER.
- MONARCH BUTTERFLY.
- GREEN SEA TURTLE.
How can changes in the environment affect the survival of the species?
Climate change can alter where species live, how they interact,
and the timing of biological events
, which could fundamentally transform current ecosystems and food webs. Climate change can overwhelm the capacity of ecosystems to mitigate extreme events and disturbance, such as wildfires, floods, and drought.
What defines a new species?
The biological species concept defines a species as a group of individuals living in one or more populations that can potentially interbreed to produce healthy, fertile offspring. … New species form by
speciation
, in which an ancestral population splits into two or more genetically distinct descendant populations.
Does genetic variation arise in response to changes in the environment?
It must be present in a population before natural selection can act upon the population. … A population that has a higher average heterozygosity has less genetic variation than one with a lower average heterozygosity. e. It arises in response to
changes
in the environment.
Which stage is the last stage of speciation?
Which stage is the last stage of speciation? The
populations become adapted to different environments
and eventually become so different that they cannot interbreed to produce fertile offspring. The formation of the canyon acted as a barrier that prevented any mating between the separated populations.
What are 4 examples of adaptations?
Examples include the
long necks of giraffes for feeding
in the tops of trees, the streamlined bodies of aquatic fish and mammals, the light bones of flying birds and mammals, and the long daggerlike canine teeth of carnivores.
What are five examples of environmental changes that affect evolution?
Five different forces have influenced human evolution:
natural selection, random genetic drift, mutation, population mating structure, and culture
.
What happens if a species is unable to adapt to a changing environment?
Answer. if organisms cannot adapt to the changes in their ecosystem,
they may move to another location
. If they will not move, the species may become threatened, endangered or extinct.
What are the 4 factors of natural selection?
Construct an explanation based on evidence that the process of evolution primarily results from four factors:
(1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the
…
What are the three conditions of natural selection?
The essence of Darwin's theory is that natural selection will occur if three conditions are met. These conditions, highlighted in bold above, are a struggle for
existence, variation and inheritance
. These are said to be the necessary and sufficient conditions for natural selection to occur.
What four factors affect Darwin's evolution?
The four key points of Darwin's Theory of Evolution are:
individuals of a species are not identical; traits are passed from generation to generation
; more offspring are born than can survive; and only the survivors of the competition for resources will reproduce.
