Which phenomenon do bats or dolphins use to find prey, predators or obstacles?
A. Refraction of sound
B. Formation of beats
C. Scattering of sound
D. Echolocation
Answer: Option D
A. Refraction of sound
B. Formation of beats
C. Scattering of sound
D. Echolocation
Answer: Option D
Fusion of two gametes dissimilar in size, as in species of Eudorina is termed as
A. anisogamous
B. oogamous
C. zoogamous
D. isogamous
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