Where did Earth's atmosphere originate?
a. Earth's gravity trapped gasses from passing comets.
b. Gases were released from the Earth itself as it cooled.
c. The atmosphere was derived from dust particles from the original gas cloud around the
planet.
d. Earth’s gravity trapped gasses from passing comets, gases were released from the Earth
itself as it cooled, and the atmosphere was derived from dust particles from the original
gas cloud around the planet.
e. Gases were released from the Earth itself as it cooled and the atmosphere was derived
from dust particles from the original gas cloud around the planet.
E
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In testing a hypothesis that "territorial defense in European robins is a fixed action pattern that is released by the sight of orange feathers,"
researchers found that robins defended their territory by attacking anything that was of similar size and had an orange patch. What experiment would you perform next to determine that the color initiated the defense response? A) Repeat the experiment using a blue patch instead of an orange patch. B) Repeat the experiment by removing the patch completely. C) Repeat the experiment by using a model of a robin that was twice the size of a normal robin but with a small orange patch. D) Repeat the experiment by using a model of a robin that had an orange patch that was twice the size of a normal patch.
Which of the following is NOT true of GnRH?
a. it is produced in the hypothalamus b. it causes cells in the anterior pituitary to release FSH c. it causes cells in the posterior pituitary to release LH d. it functions the same in both males and females e. more than one of these is NOT true of GnRH
In support of the Recent Africa Origin hypothesis, the oldest dated fossils of H. sapiens found in
Africa are reliably dated at 100,000 years old. ____________________ Indicate whether the statement is true or false.
What factor is contributing to the decline in fish populations?
A) destruction of Girard Boro Parks wetland B) elevated pollution levels in elk creek C) dams being built D) all of the above