Why did Dolly the sheep die at a young age?
What will be an ideal response?
Although Dolly was created by animal cloning, it appears the characteristics and
phenotype of the older sheep from which Dolly was cloned were passed on to Dolly. Therefore,
because the donor organism was older, Dolly aged at a more rapid rate and experienced
conditions usually not experienced until later in a sheep's life.
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At the most fundamental of levels, differences in life histories (that is, reproductive strategies) are trade-offs that are based on differences in the ________
A) onset of reproductive maturity B) reproductive sizes of the individuals C) allocation of energy between individuals D) average number of offspring produced over the life span of individuals
The world today derives the majority of its energy from which of the following sources?
A) wind and solar power B) coal and oil C) hydropower and nuclear power D) hydropower E) nuclear power
Which of the following structures protects the delicate gills of many fish?
A) Spiracles B) An operculum C) Lamellae D) Tracheoles E) An alveolus
What is the best explanation of why we have identified only a small fraction of fungi species?
A) Most fungi species grow underground and in inaccessible places. B) Fungi species lack chlorophyll and are transparent. C) Most fungi species are unicellular and microscopic. D) Fungi species have extremely short life spans and are seldom found alive.