Answer:
The Geographic barrier would have led to speciation in the finches which started from the founder effect where the finches were brought to other areas of the Galapagos. They were separated geographically so they could not mate with each other. Over time, evolution occurs through natural selection and genetic drift. This leads to the population being so different so they have reproductive barriers and can no longer interbreed. They become different species.
Explanation:
Hope this helps you understand better.
Answer:
The correct answer would be option C.
Plants evolved different methods to prevent or reduce the effects of photorespiration.
The C3 plants are the most common plants which do not have any special methods or physiology to prevent photorespiration.
The C4 are the plants in which carbon fixation and the Calvin cycle takes place in different cells. Carbon is fixed in the mesophyll cells with the help of PEP carboxylase enzyme. It fixes carbon and converts PEP into oxaloacetate. The Calvin cycle takes place in the bundle-sheath cells.
In contrast, CAM (Crassulacean acid metabolism) plants are those in which carbon fixation and Calvin cycle are separated into time. The carbon is fixed during the night as it helps in reducing the loss of water through transpiration.
The Calvin cycle takes place during the day time in the same cell, that is, mesophyll cell.
Thirty-five percent<span> of the trees cut down are used to make paper. That means sixty-</span>five percent<span> of the trees cut down are used for something other than paper. Thank you for posting your question. I hope this answer helped you.</span>
Answer:
6/16 dogs will not be able to smell.
Explanation:
Genes A and B are considered for scent smell.
Individuals homozygous for either one or both of the nonfunctional recessive alleles are not able to smell.
The final cross would be AaBb x AaBb which has outcome of;
Individual with homozygous nonfunctional recessive alleles (bold ones):
- One nonfunctional recessive alleles: Aabb, aaBB, aaBb, Aabb, aaBb (5/16)
- Two nonfunctional recessive alleles: aabb (1/16)
- All nonfunctional recessive alleles: 6/16 dogs that could not smell scents
