⟩ Which of the following best describes the human body's defense mechanism against environmental bacteria? (A) Hair in the nose (B) Mucous membranes (C) Osteoblasts (D) Saliva (E) Tears
(B) Mucous membranes
(B) Mucous membranes
Define what kind of animals llive under ground?
Define what are tentacles?
Dog lies down to sleep only after observing the surroundings. Why?
Which is the most primitive breed pf dogs in the world?
Which animal has the biggest brain?
Explain How long does a Dolphin sleep?
Which is the smallest dog on the earth?
Name the South American animal which is camel like but short statured?
Which animal has the longest longivity?
Define what is Binomial nomenclature?