What causes scientific knowledge to change over time

In the video, Craig Venter says, "We are trying to understand basic life, by learning how to now write the genetic code.

Why is it important to scientist to have a universal system of measurements

A grown tiger began its life as a single fertilized egg. Which explains why a tiger looks so much different as an adult than it did as a single fertilized egg. All the genes are expressed.

How many daughter cells are created at the end of meiosis ii

Select the characteristics common to both green algae and plants. (probably more than one answer) food is stored as starch leaves conduct photosynthesis roots absorb extra nutrients cell walls are made of cellulose

Which component of blood is responsible for the formation of blood clots? a. all blood cells b. red blood cells c. myoglobin d. platelets e. white blood cells?

What will the majority of pathogens in food be killed by? a) antimicrobial secretions from the sebaceous glands in the skin b) mucus in the trachea c) acid in the stomach d) nose hairs

What can high levels of salt do to a plant

What is the composition of earths inner and outer core?

Which is a gamete? A. testis B. steroid C. sperm D. progesterone