All of the following are correct statements
about sampling error, except one. Select the
exception.
a. Repeating an experiment many times has
the same effect on sampling error as
working on a large sample.
b. A large sample would help minimize
sampling error.
c. Sampling error is increased when a sample
size is small.
d. A sampling error results from a mistake
made by a researcher during
experimentation.
e. Sampling error is the difference between
results derived from testing an entire group
of individuals, and results derived from
testing of a subset of the group.
D
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In long-lived species of organisms, the primary advantage of delaying reproduction (late maturity) is
A) increased survivorship. B) obtaining a higher quality territory. C) increased number of mates. D) larger initial body size during the first reproduction event.
Rabbits were introduced to Australia by pioneer settlers in the mid-1800s for sporting hunters. They have since stressed native marsupial and plant populations. This is an example of the introduction of exotic species through accidental transport.
Answer the following statement true (T) or false (F)
What is the mode of action of hormones?
A. Steroid hormones enter the cell, usually bind to receptors in the nucleus and result in the activation of certain genes. B. Peptide hormones bind to cell-surface receptors and result in the activation of enzymes, while steroid hormones enter the cell, usually bind to receptors in the nucleus and result in the activation of certain genes. C. Hormones are chunks of DNA that are sent out to be incorporated into target cells and become activated to produce hormone products. D. Peptide hormones bind to cell-surface receptors and result in the activation of enzymes. E. Hormones are actually precursors or raw materials that are naturally converted to end products by the correct target cell.
Endosperm is
A. nutritive tissue produced within antheridia. B. sperm produced at the end of the flowering season. C. sperm cells enclosed within pollen grains. D. sperm after it has entered the archegonium. E. tissue stored in seeds that provides nutrition for embryos.