<span>a. they did not co-evolve with the natural species and lack natural controls, like predators</span>
Answer:
The correct answer is A. The region of the diencephalon that is responsible for maintaining homeostasis is the hypothalamus.
Explanation:
One of the main functions of the hypothalamus is to control the pituitary gland, an endocrine gland that participates in the regulation of various functions of the organism, many of them related to homeostasis (regulation of glycemia, osmolarity, etc).
Answer: D). Primary species have large numbers of offsprings, and climax communities contain species that have small numbers of offsprings.
An ecological succession is a process of gradual changes occurs in a biological community with respect to changes in the non-living abiotic factors (water, air and sunlight) and with respect to time until the ecosystem attains stability. Primary or pioneer species are the species which invade the previously barren and primitive landmass for their survival. These species make the environment suitable for the growth of other species. These grow and develop in the initial stages of succession. These species are simple organisms which reproduce asexually and produces large number of offsprings. Examples are lichen and moss. Lichen grows on the surface of rocks and acids released by them causes withering of rocks into soil which facilitate the growth of mosses and other plants. Climax community develops in an ecosystem after replacing many previously inhabiting species. Climax community develops in the end of the ecological succession. It contains species which are highly complex and uses sexual reproduction for the production of offsprings which are less in number as compared to those produced by pioneer species by asexual reproduction.
The characteristic of life that relies on the sun is the need for energy. Every living thing needs energy in order to survive, and almost every form of life on Earth depends on the sun for this energy. The sun's energy is captured and harnessed by the process of photosynthesis.
Answer:
7 days.
Explanation:
In 7 days the moon will be in its last quarter phase. In the last quarter phase, the half part of the moon is illuminated and the other half is hide in darkness. The illumination of the sides of the moon provide information about the dates of the month. Last quarter phase is also called third phase of the moon. In this phase, the Moon is in quadrature and has the elongation of 270 degree. It is also the indication that the half cycle of the moon is completed and the other half is started.
