A group of students is studying the movement of thermal energy. The teacher asks the students to place the palms of their hands flat on tops of their wooden desks and describe what is happening. The teacher reminds the students that wood is a better conductor of thermal energy than air. Which statement is the best description of what is happening? Explain why. 1 point
The table feels cold because it is at a lower temperature than the air in the room.
The table feels cold because it is solid, and solids hold thermal energy better than air.
The table feels cold because it is at a lower temperature than the students’ hands and thermal energy is being pulled into the table.
The table feels cold because it is at a lower temperature than the students’ hands and thermal energy is being pulled into the students’ hands.

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

Which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.the framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.the diverse proteins found in and attached to membranes perform many important functions.the kinky tails of some proteins keep the membrane fluid by preventing the component molecules from packing solidly together.membranes include a mosaic, or mix, of carbohydrates embedded in a phospholipid bilayer.