9) It is a warm summer night, 32oC, with the relative humidity at 100%. During the night, the air temperature drops to 18oC. You
would expect to see _______ on the ground in the morning. A) dew
B) fog
C) frost
D) rain
10) Scientists believe that during the Late Cretaceous period, many small seas dried up and new mountains began to rise. Which would MOST LIKELY cause them to believe the temperature decreased during this time?
A) The absence of fossils of warm-weather plants.
B) The absence of fossils of many species of fish.
C) The discovery of fossils of fish with small legs.
D) The discovery of fossils of warm-weather insects.
11) A hurricane is MOST LIKLEY to occur in an area
A) near warm water.
B) near cool water.
C) with strong wind.
D) with little moisture.
12) A team of archaeologists excavating a sedimentary rock layer come across some primitive hunting tools used by early humans. As the dig progresses, they unearth the fossilized remains of a dinosaur from another layer of the sedimentary rock. Why do these discoveries indicate that the rocks were formed over millions of years?
A) Early humans appeared on Earth about a million years ago.
B) Humans and dinosaurs coexisted about a million years ago.
C) Dinosaurs became extinct millions of years before humans appeared.
D) Humans hunted dinosaurs and were responsible for their extinction.
9. It is a warm summer night, 32oC, with the relative humidity at 100%. During the night, the air temperature drops to 18oC. You would expect to see___on the ground in the morning.
A) dew
10. Scientists believe that during the Late Cretaceous period, many small seas dried up and new mountains began to rise. Which would MOST LIKELY cause them to believe the temperature decreased during this time?
A) The absence of fossils of warm-weather plants.
11) A hurricane is MOST LIKLEY to occur in an area
A) near warm water.
12) A team of archaeologists excavating a sedimentary rock layer come across some primitive hunting tools used by early humans. As the dig progresses, they unearth the fossilized remains of a dinosaur from another layer of the sedimentary rock. Why do these discoveries indicate that the rocks were formed over millions of years?
C) Dinosaurs became extinct millions of years before humans appeared.
<span>Dr. Stott is researching epigenetics. Epigenetics is the study of changes that occur in gene expression with no changes in the actual gene sequences. Environmental factors can influence gene expression without changing the DNA sequence, making this the study of epigenetics.</span>
Dorsal means back as in the back area. Example~ Many dolphins have a pronounced beak and all have a central dorsal fin and sharp teeth for feeding, mainly on squid and fish.
