You construct a life table for a plant species and find that in all cases about the same proportion of the cohort survive to the beginning of the next time interval. What would you call this?
A. A Type I survivorship curve
B. A Type II survivorship curve
C. A Type III survivorship curve
D. Populations regulated by density-independent events
E. A semelparous life history adaptation
Answer: B
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Cytokinesis typically begins during which stage of mitosis?
a. prophase b. prometaphase c. metaphase d. anaphase e. telophase
During a DNA profiling analysis, short tandem repeats are first ____
a. subjected to high heat b. inserted into a plasmid c. chopped up using a restriction enzyme d. placed on a gel for electrophoresis e. amplified using PCR
All of the following animals give birth to live young
after extensive internal development in the female EXCEPT a. humans. b. mice. c. kangaroos. d. monkeys. e. lions.
Answer the following questions true (T) or false (F)
1. Water and plasma proteins make up about 99 percent of blood plasma. 2. Because they are cell fragments, not cells, platelets are a component of plasma, not a formed element. 3. Ions in plasma are also known as electrolytes.