The ocean surface currents circulate counter clockwise direction in the southern hermisphere duebto the coroilis effect.
Answer:
Sharp-spined cactus
Explanation:
Given, that N allele is required for the production of spine and S allele will produce sharp sines.
True breeding sharp spined cactus: NNSS
spineless cactus: nn__ ( we can't fix the allele for second gene since it has not been mentioned as true breeding )
Their progeny: NNSS X nn__ = NnS_
So the progeny is going to be sharp spined because both the dominant alleles N and S are present.
The tissue to have cells with the greatest number of gap junctions is the cardiac tissue.
Cardiac tissue refers to the involuntary, striated tissue present in the heart. It is made up of individual heart muscle cells called the cardiomyocytes. They are joined together by intercalated discs which contain the gap junctions. Gap junctions are the specialized intercellular connections which link the cytoplasm of two cells. Gap junctions play a crucial role in regulating the velocity and safe impulse propagation in the heart. They are abundantly found in the cardiac tissue helping in direct transmission of the deplolarizing current from cell to cell across the chambers of the heart. The signals for contraction of the cardiac muscle is passed through these gap junctions.
Answer:
A:no mating has occurred (sperm is not able to fertilize the egg)
Explanation: