Carbonaceous chondrites have been heated to high temperature at least once since they formed
a. True
b. False
Indicate whether the statement is true or false
False
You might also like to view...
Coelomates are:
A. two embryos that develop in the same coelom B. animals that have a true coelom C. animals that have two coeloms D. animals that have no coelom E. animals in which the coelom disappears at gastrulation
__________ can be used to estimate the population density for mobile animals. Fill in the blank(s) with the appropriate word(s)
What is the concentration of persistent toxic chemicals at higher levels within a food chain or food web?
What will be an ideal response?
Over two decades ago in the People's Republic of China, it was noticed that songbirds were eating rice and millet drying on the grain floors. Since there were large numbers of people to feed, and the population was very near to carrying capacity, it was proposed that the songbird population should be reduced in order to preserve more grain. However, the songbirds also ate a larger number of insects that fed on the rice and millet when it was young. Draw a food web including the above items, indicating energy flow in the direction of the arrows, and representing the general proportion of energy consumed by the breadth of each arrow. State briefly why this decision was disastrous.
What will be an ideal response?