Answer:
A.warmer than present
Explanation:
During most of the Mesozoic Era, the Earth was warmer than present.
This is because during the Mesozoic era the land were far away from water bodies which led to prevalence of deserts while today the land are much more closer to the water bodies. It’s a known fact that water bodies help in the thermoregulation and cooling of the atmosphere.
This is the main and feasible reason why the Earth was warmer in the Mesozoic era than now.
The relationship between temperature and orca survival is that they live in waters that are always at 0 degrees, therefore their prey will perish if the temperature increases.
Orcas maintain a body temperature that is comparable to that of humans. Orcas, however, lose a lot more heat to the environment than humans do since they live in water. Orcas have developed a variety of strategies to attempt and keep their heat under check in reaction to this. Orcas maintain a body temperature that is comparable to that of humans. Orcas, however, lose a lot more heat to the environment than humans do since they live in water. Orcas have developed a variety of strategies to attempt and keep their heat under check in reaction to this. Note that Killer whales have also been spotted in warm water environments, including Florida, Gulf of Mexico, as well as more temperate regions, like New Zealand as well as South Africa.
Learn more about orca survival here
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Answer: they all have bodies and parts of water in them
Explanation:
Answer:
A stream in a bedrock valley located 5000 feet above ultimate base level that is draining a mountainous region in the headwater of a stream system would have a _____.
high gradient, and a narrow and shallow channel with no floodplain
Explanation:
A bedrock valley has no alluvium mantling the bedrock over which it flows. Alluvium (consists of sand, gravel, silt, clay, and gravel, as well as other organic matters) mantlings or coverings are usually developed in the lower part of the river with the formation of floodplains and deltas. They may also be deposited at lakes or river banks. Headwater streams deliver nutrients and other organic materials (e.g. fallen leaves) to downstream regions to sustain downstream aquatic life.
