1)
sammy is performing an experiment to determine how fast the sun
can heat a container of water on a warm summer day. he filled a 1l
beaker with distilled water and placed it in direct sunlight (the outside
temperature is 27 °c. the organized his data in this data table.
if sammy were to leave the container in the direct sunlight for an
additional hour, what would he expect the temperature to be?
heating water with the sun
time (minutes) temperature (°c)
0
21
10
21
20
22
23
23
50
24
60
25
30
40
a) 24 °c
b) 26 °c
c)
30 °c
d) 32 °c

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.