The medulla oblongata<span> helps regulate breathing, heart and blood vessel </span>function<span>, digestion, sneezing, and swallowing. </span>
Indicates that cellulose is carbohydrates liquid
Answer:
Genotype ratio Tt:tt=1:1
Phenotype ratio 1:1
Explanation:
the phenotype ratio should be 1:1 since there are 2 individuals with the dominant allele and 2 without it
The genotype ratio should be 1:1 for the same reason
Answer: The parents of the white cat would be a dominant white cat and a recessive colored coat cat. The parents of the autosomal tabby would be a dominant tabby and either a recessive brown cat, striped cat, or a recessive black cat.
Explanation:
The genotypes and phenotypes would be : WW- Dominant white and ww- recessive color coat cat; their offspring would be 100% recessive white kittens
TT- dominant tabby and a recessive brown cat; their children would be 100%- dominant brown tabby
TT- dominant tabby and a recessive striped cat; children would be 100%- brown striped
TT- dominant tabby and a recessive black cat; children would be 100%- tabby kittens
Answer:
b) At equilibrium, the species composition of an island will not change.
Explanation:
The Theory of Island Biogeography written by Robert H. MacArthur and Edward O. Wilson (1967) is an essential book for any professional working in biogeography, biodiversity, ecology, conservation and related fields. The theory of island biogeography states that species diversity on islands tends to approach a dynamic equilibrium due to the balance between colonization (inmigration), speciation and extinction. At equilibrium, the species composition of an island will change, precisely at the time that immigration and extinction processes maintain the number of species in a dynamic equilibrium, thereby maintaining species diversity. In this case, the colonization rate represents a function of distance to the continent (or other islands), the extinction rate is a function of the size of the island and habitat heterogeneity, and speciation is a function of time. This book also contains a series of useful considerations: 1-the number of species in an area is directly associated with the size of the area; 2-large islands support more diverse communities than small islands; 3-the viability of populations on island systems can be considered as a function of the island size and its proximity to the mainland (or other islands); and 4- when a habitat is lost the remaining fragmented area may lose some of its important species.