In the total time of the United States space program, how many space flight tragedies have occurred?
Answer:
In addition to accidents during spaceflights, 13 astronauts, test pilots, and other personnel have been killed during training and test flights.
Explanation:
What biome is treeless, has 2 seasons, has an average precipitation level of 6-10 in ( less than 25 cm) per year, and has an average annual temperature of -18 degrees Fahrenheit?
A
Temperate Deciduous Forest
B
Taiga
C
Tundra
D
Grassland
E
Tropical Rain Forest
F
Desert
Your Answer:
C. Tundra
Explanation:
How many seasons does Tundra have: Two. There are two main seasons, winter and summer, in the polar tundra areas.A defining feature of the tundra is the distinct lack of trees. ... For most of the year, the tundra biome is a cold, frozen landscape. This biome has a short growing season, followed by harsh conditions that the plants and animals in the region need special adaptations to survive.Temperature. Temperatures usually range between -40°C (-40 °F) and 18°C (64°F).Precipitation. This biome sees 150 to 250 millimeters (6 to 10 inches) of rain per year.Since Tundra matches all the questions in your question, Tundra is the answer.
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What is the ability of some creatures to control their body temperatures through internal means such as muscle shivering, fat burning, and panting called?
Question 10 options:
metabolism
endothermic
ectothemic
Use the concept of natural selection to explain how a population of moths might evolve if only a few members can blend in with their environment.
Answer:
A great example is the peppered moths evolution. Since the Industrial Revolution the birch trees started to turn black from the soot. This casued all the white moths to be eaten from birds. The ones that were left to mate were black moths which favored the black gene. So overtime black moths became more common. They were naturaly selected based on color to survived and pass down their black colored genes.
Explanation:
A population of moths might evolve if only a few members can blend in with their environment, and those who cannot blend in would be chosen by the predator. Through natural selection, the blended population will grow.
What is natural selection?
Natural selection is the force that selects the organism in the ecosystem that can fit best in the environment. In the case of the peppered moth, the light-colored moth was earlier camouflaged with the light color of the bark, so the dark moths were chosen by the predator. Later, after industrialization, the bark became black from pollution, allowing light moths to be seen and eaten by the predator, demonstrating how natural selection varies depending on environmental conditions.
Hence, the population of moths might evolve if only a few members can blend in with their environment, and those who cannot blend in would be chosen by the predator. Through natural selection, the blended population will grow.
Learn more about the process of natural selection here.
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