Exercise A sample of a mythical substance is cooled from a temperature of 250°C to 10°C in
two hours. The boiling point of the substance is 175°C and the melting point is
22°C
Using this information, draw a cooling curve for the sample.
On the curve clearly label the following items in the appropriate locations (use
arrows as needed
to indicate direction or exact location on the curve. Some terms
may be used more than once, as needed.):
Solid
Freezing Point
Liquid
Fusion
Gas
Solidification
changes
Condensation
KE changing
Boiling
KE not changing
Melting Point
Direction of endothermic
Direction of exothermic
changes

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Where in the cell are ribosomes made?

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.