Question
The ratio of two numbers is 6:7. If each number is
decreased by 4, the ratio becomes 5:6. Find the smaller numbers.Solution
Let the two numbers be 6x and 7x. => (6x-4)/(7x-4) = 5/6 => 36x – 24 = 35x – 20 => x = 4 The smaller numbers = 6 × 4 = 24
Whitening of hair is caused by the deficiency of _________.
Which of these statements are accurate regarding the molecular structures of DNA and RNA?
Statements:Â
1. DNA is a doublestranded molecul...
What are the tiny pores on the surface of plant leaves called?
During photosynthesis, green plants absorb:
What is the scientific study of animal behavior known as?
Human African trypanosomiasis, also known as sleeping sickness, is caused by which of the following?
The AIDS virus has which type of genetic material?
Lymph attacks harmful ________ in the blood.
Rinderpest, also known as cattle plague, is caused by which type of pathogen?
Which antibiotic was discovered by Alexander Fleming in 1928