The preserved remains or physical evidence of an organism that lived in the past are called -
a. evolutionary features
b. fossils
c. mutations
d. variations
Answer: b. fossils
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Which of the following is NOT true concerning homologous chromosomes?
a. There are two of each kind. b. Each parent contributes one of each homologous pair. c. Most homologous chromosomes carry the same genes for the same traits. d. The number of homologous chromosomes is doubled in each generation. e. Homologous chromosomes pair up during early meiosis.
Most of the oxygen in the blood is transported
A) by white blood cells. B) in the plasma. C) as bicarbonate ions. D) bound to hemoglobin. E) combined with carbon dioxide.
Compare and contrast slime molds and water molds
What will be an ideal response?
Restriction enzymes are obtained from ________.
A) archaea B) eukaryotes C) viruses D) bacteria