Question

speciation - forming new species
genetic divergence of populations, leading over time to reproductive isolation and the
formation of new species
answer the following questions
value: 10
populations evolve and individuals adapt.
a. true
b. false
value: 10
lions and tigers do not live together in the wild but inzoos these two cat
can come together and reproduce and produce a hybrid called a liger,
which is sterile. this is an example of ______.
a. hybrid inviability
b. hybrid breakdown
c. hybrid infertility
d. gene flow
e. founder effect

Explanation:

• First question: Evolution is a population - level phenomenon. Natural selection acts on individuals, but evolutionary changes (such as changes in allele frequencies) occur in populations over time. So, populations evolve and individuals adapt.
• Second question: Hybrid infertility occurs when the hybrid offspring (in this case, the Liger) is sterile. Hybrid inviability means the hybrid does not survive to maturity. Hybrid breakdown refers to the decline in fitness of later - generation hybrids. Gene flow is the transfer of genes between populations. The founder effect is a type of genetic drift related to the establishment of a new population by a small number of individuals.

Answer:

1. a. True
2. c. Hybrid Infertility