Answer;
Cell theory is a scientific theory since its a set of principles, postulates and ideas that have been supported by a wide range of evidence which explains why and how some aspect of the natural world behaves the way it does.
Explanation;
A scientific theory is a well supported and widely accepted explanation for the way something in nature works.
It is based on facts that have been repeatedly confirmed through observation and experiment.
Cell theory states that the cell is the fundamental structural and functional unit of living organisms and these organisms are composed of autonomous cells with properties that brings out the properties of it as a whole.
A zebra with a long mane moves into a population of zebras with short manes.
A population of squirrels is separated by a mountain range and cannot interbreed.
Two populations of rabbits are forced together after a flood.
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Which of the following statements is true?
Extinction speeds up the evolution of other species.
Earth has only experienced one mass extinction in its history.
Speciation is caused by a reduction in gene flow.
Genetic diversity can be increased by genetic drift.
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Low genetic diversity _____.
helps a population survive
increases the risk of extinction
can cause genetic drift
is the result of genetic mutation
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A species is endangered if it _____.
no longer exists anywhere on earth
is in danger of becoming extinct
is not native the environment
has high genetic diversity
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Which of the following statements is true?
Gene flow evens out genetic differences between populations.
Genetic drift increases the genetic differences between populations.
Natural selection, mutation, and genetic drift are random events.
The bottleneck effect increases the genetic diversity of a population.
Answer: 1. Option C.
2. Option D
3. Option B
4. Option B
5. Option A
Explanation:
The third statement, 2) the 4th statement. 3) The second statement, 4) the second statement, 5) first statement.
describes the structure of the plasma
membrane?
Answer:
Artificial selection can be described as the method by which organisms with the desired characteristics are crossed so that offsprings with better qualities can be produced.
Although artificial selection is an effective way to produce organisms with better traits, yet this technique has some consequences of its own. Growing plants and animals through this method will lead to lesser genetic variety. In the future id any disaster such as a disease infects the organisms then the entire population will be eradicated as there will be little or no genetic diversity at all.
abundant plants and animals
B.
dinosaurs
C.
small, one-celled organisms and primitive jellyfish
D.
extensive mountain building
Answer:
It is C
Explanation:
Because everything's starts out small and they are the smallest in the eras because one cell turns to two cells and etc. it was the beginning of all life forms . It couldn't be dinosaurs because they were in the Mesozoic era. At the time of the Precambrian era i think it was before the Phanerozoic eon
Answer:
Can you give us the names of the "products" mentioned?