Answer:
Fossil fuels were formed from the fossillized remains of dead plants and animals that once lived millions of years ago. Oil and natural gas are the products of the deep burial and decomposition of dead plants and animals. Coal comes mainly from dead plants which have been buried and compacted beneath sediments.
Explanation:
Answer:
The suitable statement will be - only one allele appears for that gene in that population.
Explanation:
- Gene Fixation is a topic of population genetics. It means that fixing the change in a gene from a gene pool and that leads to express only one allele for that gene which only remains after the fixation process, in that population. Normally a gene exists of at least two variants or alleles.
- An allele fixation means that only one variant or allele will be expressed in all the populations.
Plant cells are eukaryotic while bacteria cells are prokaryotic. One characteristic difference between eukaryotes and prokaryotes is that eukaryotes have membrane-bound organelles, such as a nuclei, Golgi apparati, endoplasmic reticula, mitochondria, and so forth. Thus, choice c would be correct here (endoplasmic reticula can be rough or smooth depending on their specific functions).
Answer:
C. Extinction
Explanation:
Classical conditioning is also known as respondent conditioning and during training, strengthening of a conditioned response is key.
Also, according to Thorndike, learning is strengthened and more likely to occur each time a response is followed by a satisfying state of affairs.
Therefore, if the unconditioned stimulus no longer follows the conditioned stimulus, extinction would occur.