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It must experience a period of cool temperatures, around 15–22 °C (59–72 °F), before development proceeds when the temperature increases to 24 °C (75 °F). The temperature during this time strongly influences the sex of the hatchling; in one study, 100% of eggs kept at 25 °C (77 °F) produced male turtles, whereas at 30 °C (86 °F), 89 ...
It has been shown that the black spruce can endure temperatures as cold as –85°, and at least as warm as 20 °C. Killer whales (Orcinus orca) are found at nearly every latitude on earth. [10] They are able to withstand water temperatures ranging from 0° to 30-35 °C. [11]
An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "heat"), more commonly referred to as a "cold-blooded animal", [1] is an animal in which internal physiological sources of heat, such as blood, are of relatively small or of quite negligible importance in controlling body temperature. [2]
Origins of heat and cold adaptations can be explained by climatic adaptation. [16] [17] Ambient air temperature affects how much energy investment the human body must make. The temperature that requires the least amount of energy investment is 21 °C (70 °F). [5] [disputed – discuss] The body controls its temperature through the hypothalamus.
Here's what to know about chickens and flight: Can chickens fly? Yes, chickens can fly but not for long distances. Unlike other birds, chickens are not bred to fly.
Cold hardening is a process in which a plant undergoes physiological changes to avoid, or mitigate cellular injuries caused by sub-zero temperatures. [1] Non-acclimatized individuals can survive −5 °C, while an acclimatized individual in the same species can survive −30 °C.
Hawaii is the only state to not record a subzero temperature: The coldest temperature recorded in Hawaii is 12 degrees at the Mauna Kea Observatory, at an elevation of 13,796 feet, on May 17, 1979.
The body temperatures of many small birds (e.g. hummingbirds) and small mammals (e.g. tenrecs) fall dramatically during daily inactivity, such as nightly in diurnal animals or during the day in nocturnal animals, thus reducing the energy cost of maintaining body temperature. Less drastic intermittent reduction in body temperature also occurs in ...