Biology, 20.02.2020 19:26 Yung5hagger
Which of these was the dominant plant group at the time that dinosaurs were the dominant animals?
a. bryophytes
b. charophyceans
c. angiosperms
d. gymnosperms
e. seedless vascular plants
Answers: 1
Biology, 21.06.2019 21:00
What two fields of study provide the core information that is used to classify organisms?
Answers: 2
Biology, 21.06.2019 22:00
There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?
Answers: 1
Biology, 22.06.2019 00:30
On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.
Answers: 3
Biology, 22.06.2019 08:00
Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure
Answers: 1
Which of these was the dominant plant group at the time that dinosaurs were the dominant animals?
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