What do you know about different types of signaling? What other information is related to the question?
What will be an ideal response?
Signaling with adjacent cells include paracrine, direct contact, synaptic and autocrine. Endocrine
signaling works at a distance with the hormones moving through the blood to distant organs.
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Cuvier, an anatomist and paleontologist, proposed that ____
a. all present-day organisms have descended, with adaptations, from one--or possibly a few--original organisms b. Earth's history has been marked by several periods when destruction of populations was widespread and that, after each such period, the earth was repopulated c. evolutionary changes in organisms are caused by use and disuse d. although evolution is responsible for all the changes that happen to species, one center of creation resulted in the original members of each species e. geologic processes in Earth have not changed over billions of years
Which arthropod subgroup includes those with six legs?
A) Arachnids B) Crustaceans C) Insects D) All of the above
What property of water is not attributable to hydrogen bonding between water molecules?
A. cohesion B. ice formation C. polarity D. heat storage
What is the first step in investigating any ecological question?
a) make observations b) make a computer model c) conduct and experiment d) come to a conclusion