Why do more marine mammal offspring survive to adulthood than other animals?
a. They expend high amounts of energy
b. They have a high metabolic rate.
c. They give a high level of parental care.
d. They have fewer offspring.
c
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Phenotypes can be positive, negative, or neutral in a population. A sharp contrast between balanced polymorphism and the three types of natural selection is that in balanced polymorphism
A. not only are multiple alleles persistent in a population, but all may be preserved. B. multiple alleles of a gene persist indefinitely in a population. C. many traits persist by only a single allele. D. polygenic traits in a population may mask the observation of extreme or intermediate phenotypes. E. all phenotypes may be preserved in a population.
Prior to the union of the nuclei of the egg and sperm, meiosis II is completed by the ovum
Indicate whether the statement is true or false
Can you inherit physical traits that your parents acquired during their lifetime?
A) No B) Yes C) Only if it improves survivability D) Only if it improves reproductive success
In phenotypes with codominant inheritance, the parent trait have ________.
Fill in the blank(s) with the appropriate word(s).