In Bryophytes, the sporophyte is dependent on the larger gametophyte, whereas, in Angiosperm and Gymnosperms, the gametophyte generation is dependent on the larger sporophyte generation.
<h3>Difference between gametophyte and sporophyte.</h3>
- The gametophyte is the haploid(n) state in the life cycle whereas the sporophyte is the diploid(2n) state in the life cycle.
- Gametophyte leads to gamete formation whereas sporophyte leads to the formation of spores.
- Spore formation takes place post meiosis whereas gamete formation either occurs directly or through mitosis.
- The meiospore grows to develop into the gametophyte. The zygote grows to produce sporophytes
- The cells in sporophytes have two genomes or possess two sets of chromosomes. The cells of the gametophyte have a single genome or produce one set of chromosomes.
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Answer:
The correct option is A. Theories that are related to the evolution of humans from apes will change.
Explanation:
The research from Dr. Katherine will change the theory of evolution of humans from apes because according to the theory of evolution changes in the genetic sequence of apes caused the formation of humans. But Dr. Katherine Pollard's research says that no deletion or addition of genes took place rather the genome of humans and apes is same with certain switches controlling the genome.
Answer:
behavioral separation
Explanation:
The separation leading to the speciation of the two groups of killer whales would be considered a behavioral separation.
<em>Behavioral separation or isolation is a form of separation that occurs between two groups of individuals (that use to be of the same group) as a result of preference for a particular behavior or set of behaviors.</em>
The preference for the behavior eventually leads to the two groups becoming separate species, a form of speciation known as sympatric speciation.
The answer is: "sexual dimorphism" .
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