Platyhelminthes were the first organisms to have ____
a. a fully developed brain
b. a notochord
c. a central nervous system
d. metamerism
e. an excretory system
c
Environmental & Atmospheric Sciences
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The movement of materially wealthy people into inner cities, displacing materially poor people, is called _________________.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
What is an ophiuroid?
A) Sea urchins B) Tunicate C) Salps D) Brittle stars
Environmental & Atmospheric Sciences
The bulk of the world's population lives within the Tropical climates
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Shifting maritime and continental air masses are a causal factor of mesothermal climates
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences