passive: doesn't require energy, from high to low concentration
active:requires energy, from low to high concentration
i dont know maybe
Stingrays lamphreys and trout those are the correct answers
Answer:
Succession is the natural evolution that occurs in an ecosystem by its own internal dynamics, that is, it refers to two stages of something that is (precisely) successive in time.
Explanation:
Genetic diversity occurs at various levels of the organization of the ecosystem, through the species that compose it, from its subspecific populations (provenances), family groups and individual genotypes, down to the molecular level of the gene. A succession consists of the process of change that an ecosystem undergoes over time, as a consequence of changes that occur both in the conditions of the environment and in the populations that comprise it, giving rise to an increasingly organized and complex ecosystem. The effects of a succession are the change in the structure and dynamics of an ecosystem over time, as a result of an interaction of physical forces that break in from the outside and development processes generated within the system. Also when the classes of ecological changes are controlled by the community, changes will occur in the physical substrate and the microclimate, altering the composition of species and diversity as a result of competition and other interactions of the populations. Species diversity tends to increase with succession, the species undergo mutations or transformations, given that the soil, air and even water (abiotic factors) have also undergone important transformations during the succession.
Receptor proteins are molecules inside a cell or on its surface on which ligands bind. A ligand is any substance (e.g. a hormone, drug, functional group) that binds specifically and reversibly to another chemical entity to form a large complex.
Receptor proteins found inside a cell are called internal receptors or intracellular receptors or cytoplasmic receptors.
They act as regulators of mRNA synthesis to mediate gene expression.
When a ligand binds to an internal receptor, the receptor changes in conformation and exposes on itself a site that can bind to DNA.
The receptor joined to the ligand moves into the nucleus where it binds to a specific site on the cell DNA. Once bound, it promotes the process of transcription where information is copied from DNA to mRNA
Answer:
It has adapted to feed on available food
Explanation:
