Ecotones are the<u> transitional zones between two ecosystem.</u>
Explanation:
Ecotones is a narrow zone between two different ecosystem.
It may be defined as the transition zone between these two ecosystem. Ecotones are species rich and it's resources are used by inhabitants of both the ecosystem.
Ecotones are marked by sharp changes in vegetation and species population.
The ecotones arise due the drastic changes in the environmental condition of a place that creates a sharp boundary between it and adjacent area.
However, these changes blend somewhere in between these area and results in formation of ecotones.
Example of ecotones can be the mangroves. These lie between marine ecosystem and terrestrial ecosystem.
C. spinal nerves
it is the answer to your question.
Answer:
The test cross is shown below
T T
t Tt Tt
t Tt Tt
The alleles shown in the vertical side (tt) are recessive and come from the male parent. The alleles TT are dominant and come from the female parent.
For the variety of offsprings to be 100% tall, the recessive parent had to be crossed with a homozygous dominant parent. If the female was heterozygous with which the cross was done,then there would be small tomato plants in the offspring generation.
A biogeochemical cycle is a pathway by which a chemical substance moves through both biotic and abiotic compartments of earth
The answer is d. flour and water because a mixture of flour and water is not going to be even throughout, it will be lumpy and not completely mixed.