Answer:
Explanation:
Epithelial tissue helps protect skin from bacteria and other particles. nervous tissue sends signals between brain and body. muscle tissue allows shivering to produce heat to maintain body temperature.
Nervous tissues are distinct type of tissues within the nervous system responsible for the communication and control between the brain and the rest of the body.
Geographic isolation leads to allopatric speciation
Explanation:
-One species could split into two if a physical barrier (such as a new river, divided its geographic range)
- If the barrier is large enough, gene flow between them would cease and the two separate populations would evolve independently.
- Different alleles would be fixed in them; because of the hazards of mutation and drift, or because selection favored different characters in the two.
- Then if the barrier is removed and the populations are reunited, they might remain distinct from each other.
- There would now be two species where there was formerly one.
The correct genotypes of the parents are Ttbb male and the TTBb female and the <span>TtBb for the offspring.
The image below presents a cross of these two genotypes </span>Ttbb and TTBb.
As you can see marked with green, 1/4 of the offspring would have the TtBb and be heterozygous for both traits.
With an electromagnet, you can control the magnet strength and the magnetic force is stronger than a regular magnet.