Answer the following questions true (T) or false (F)
1. Normal microbiota may cause disease if conditions change in the body.
2. A syndrome is a group of symptoms and signs that collectively characterize a particular disease.
3. All diseases go through the stages known as incubation period, prodromal period, and illness.
1. TRUE
2. TRUE
3. FALSE
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Compare the teeth of Australopithecus afarensis and Homo sapiens.
a. Describe similarities and differences between the two species b. Write a hypothesis about dietary differences between the two species based on their teeth.
The correct sequence of steps in the eukaryotic cell cycle is _________________
A. G1 S phase G2 mitosis cytokinesis B. G0 S phase G1 S phase G2 mitosis cytokinesis C. G0 S phase G1 G2 cytokinesis mitosis D. G0 S phase G1 S phase G2 cytokinesis mitosis E. G1 S phase G2 cytokinesis mitosis
Identical twins arise from a split at which stage?
a. the morula b. the blastula c. two cells d. eight cells e. 32 cells
Chromosomes are
A. composed of DNA and lipid. B. found only in the cytoplasm. C. composed of DNA and carbohydrate. D. composed of DNA and protein.