Answer: Phenotypic ratio=2:2; Genotypic ratio= 2:2.
Explanation: Test cross is the breeding of an individual with Phenotypically recessive individuals.
Heterozygous wire-haired = Ww
Recessive trait= ww
Test crossing result of offspring= Ww Ww ww ww
Genotypic ratio (genetic composition) = 2:2
Phenotypic ratio= 2:2
2 offsprings are wire-haired and 2 Offspring are smooth-haired.
The carrying capacity for a species in an ecosystem is primarily determined by the resources in the ecosystem.
<u>Explanation:</u>
The availability of food, raw materials, water and other resources in that ecosystem are those factors that is used for the determination of the carrying capacity. The factors such as nature, the levels of wastage accumulation, removal of very important things from the system also determines the carrying capacity. a system's carrying capacity may involve matters such as available supplies of food, water, raw materials, and/or other similar resources.
The main components that determines the carrying capacity of an ecosystem are food and other resources, provided, the humans must not disturb the ecosystem for their self survival. The resources limitations and their availability determines this factor to a greater extent.
It is called the Epidermis. The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.
Answer:
The phenotype may change constantly throughout the life of an individual because of environmental changes and the physiological and morphological changes associated with aging. Three types of natural selection, showing the effects of each on the distribution of phenotypes within a population.
Answer:
Biological
Explanation:
The biological species concept differentiates one species from the others on the basis of reproductive isolation. It assumes that the two organisms that belong to different species can not interbreed to produce a viable and fertile progeny. On the other hand, the members of the same species can reproduce with each other to produce progeny. In the given example, the populations of damselflies are observed for their reproductive behavior. Since the flies of all the populations are able to breed with each other, they belong to the same biological species.
