Which type of cells has no nucleus?
Answer. Red blood cells
White blood cells are also known as?
Red blood cells are also known as?
Erythrocytes, Leucocytes and Platelets collectively constitute nearly how much percent of the blood?
Answer. 45 percent
The first sign of life made its appearance of the earth about
Answer. 3 billion years ago
When the earth was formed it had an atmosphere with
Answer. Water vapor, ammonia and methane
Biochemical origin of life was discovered by
A group of cells that work together to perform a function is called what?
Which of the following terms is not a category for biological classification?
Fungi absorbs the nutrients from dead organisms. In the animal kingdom the, fungi are known as what?