Answer the following questions true (T) or false (F)
1. Most digested food is absorbed into the blood by the villi of the small intestine.
2. Sodium is a nutrient because it provides us with energy.
3. Minerals are always chemical elements, not compounds.
1. TRUE
2. FALSE
3. TRUE
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A characteristic of animals is that they are __________ and have their cells organized into
__________.
Fill in the blank(s) with the appropriate word(s).A form of mutation associated with the expansion in copy number of a nucleotide triplet in or near a gene is called
a(n) ____________________ Fill in the blank(s) with the appropriate word(s).
Thylakoids, DNA, and ribosomes are all components found in _____
A) chloroplasts B) mitochondria C) lysosomes D) nuclei
In vertebrates, the ________ nervous system is composed of the brain and the spinal cord.
A. peripheral B. sympathetic C. somatic D. central E. autonomic