Which of the following statements is true about certainty of paternity?
A) Young or eggs laid by a female are likely to contain the same genes as another female's eggs in a population of birds.
B) Certainty of paternity is high in most species with internal fertilization because the acts of mating and birth are separated by time.
C) Males that guard females they have mated with are certain of their paternity.
D) Certainty of paternity is low when egg laying and mating occur together, as in external fertilization.
E) Paternal behavior exists because it has been reinforced over generations by natural selection.
A young horse in Europe being longed with a surcingle and side reins
Young adults usually grieve loss of a role, such as employment or the breakup of a relationship.
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
True Forget-Me-Not
The cranium of a young infant changes dramatically in shape with age. Initially the child has severa
Rhythmic leaf movements by a young bean plant (Phaseolus).