Complete Question:
The carrying capacity of the environment for a species is determined by:
options:
(a) the reproductive rate of the organism.
(b) the number of organisms of that species.
(c) the state and national wildlife laws pertaining to that species.
(d) the age distribution of that species.
(e) the limited availability of renewable resources in the environment and the environmental resistance to the biotic potential of the organism.
Answer: (e) the limited availability of renewable resources in the environment and the environmental resistance to the biotic potential of the organism.
Explanation: The carrying capacity refers to the highest number of the species that the environment can cater for, in terms of food, space and other necessities that supports life.
Thus, the available of renewable resources (i.e resources that can be reused after consumption e.g water) in the environment, plays as a determinant of the highest number of individuals an environment can support (carrying capacity).
Furthermore, environmental resistance to the biotic potential of the organism, is also a determinant of the carrying capacity of organisms inhabiting that particular environment.
Lipids include triglycerides, phospholipids, and Sterols.
Answer:
b. forward mutation, suppressor mutation
Explanation:
When the nucleotide sequence of an organism is altered, it is called as mutation. It can be caused by DNA damage or replication errors. In forward mutation, the wild type allele is converted to a mutant version such that the gene product is non functional or its not produced at all. Suppressor mutation is the second mutation which reverses the phenotypic effects of the previous mutation. This process is called as synthetic rescue.
Since here gene X was converted into a mutant form by the mutation, it had undergone forward mutation. When gene Y was mutated, the function of gene X was restored which ultimately also restored the phenotype hence it is an example of suppressor mutation.
