The nutrient that is essential for survival and accounts for 60-75% of body weight is:

A. protein.

B. calcium.

C. water.

D. fat.

Data collection relies entirely on scientific experiments? true or false

Which of the following is an important characteristic of a scientific theory

List three environmental factors that could cause certain neurological conditions and indicate the neurological disease caused by each one.

Who defined stress as, 'the response of the body to any demand, whether it is caused by, or results in, pleasant or unpleasant conditions'?

What is the best measuring stick to use to determine the degree of fitness in evolutionary selection? A. The increase in lifespan resulting from selection B. The increase in chromosomal number within the nucleus C. Reproductive success D.

Which organelle usually present in plant cells are absent in the cells of the onion tissue

How do i predict the number of bubbles someone can get from pondweed with a lamp distance of 16cm

The first step in the process of gene expression is transcription. what is the product of transcription during gene expression? a. a codon b. a molecule of rna c. an rna polymerase dna molecule of thymine

Which layer is made of solid nickel and iron? A. crust B. mantle C. outer core D. inner core I think it is either the inner core or the outer core.

What is a biological definition of Archaea.