Answer:
The correct is B Hormones are chemical signals between cells transported in blood or hemolymph.
Explanation:
Hormones are called chemical messenger of the cell because they transmit chemical information from one cell to the target cell and regulating the functioning of that target cell by activating specific proteins related to the functioning of that target cell.
Hormone is secreted from its source gland such as Pituitarygland, thyroid gland,adrenal gland.After being secreted hormones are transported via the blood stream to the target cell and binds to receptor of that target cell thus allowing the target cell to exert its biological function.
In this case, the black body colour is the dominant one. The white dog is homozygous recessive.
As the cross between the black female 2 and the white male results in all black pups. This means that the all the offsprings are heterozygotes and the Female 1 is homozygous recessive having a BB phenotype (where B codes for dominant allele).
As the cross between the black female and the white male results in four white and three black pups. This means that the all the black offsprings are heterozygotes, and the white ones are homozygous recessive and the Female 2 have a dominant and 1 recessive gene, and is a hetrozygotezygous recessive having a Bb phenotype (where B codes for dominant allele and b codes for recessive allele).
The correct answer is - B. The number and type of plants in an ecosystem determines the number and type of consumers that can live there.
The plants are producers. They are the basis of the ecosystems on Earth. By consuming the plants, the consumers are able to survive and thrive, thus the food chain develops further up to the predators that are consuming other consumers.
The number of plants and the type of plants determines what type and how many species of consumers can live somewhere. The more plants there are, the more food for the consumers, thus there will be more consumers. The higher the diversification of the plants, the higher the diversification of the consumers will be too, as every plant is unique and specialization for consuming it is needed, thus the consumers will evolve into new species in accordance to the food source.
