Pavlov's dog stopped salivating to the bell when the food was no longer paired with the bell. This is called:
extinction
Answer:
The answer is <u>D</u> - a plant without fertilizers
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<span>For bees, their forage or food supply consists of nectar and pollen from blooming plants within flight range</span>
Answer:
Triassic Period (252 to 201 million years ago)
All continents during the Triassic Period were part of a single land mass called Pangaea. This meant that differences between animals or plants found in different areas were minor.
The climate was relatively hot and dry, and much of the land was covered with large deserts. Unlike today, there were no polar ice caps.
It was in this environment that the reptiles known as dinosaurs first evolved. Reptiles tend to flourish in hot climates because their skin is less porous than, for example, mammal skin, so it loses less water in the heat. Reptile kidneys are also better at conserving water.
Answer:
There are basically 4 components of Biosphere.
Explanation:
Biosphere is the collection of all ecosystems on earth and their interactions with each other. The Biosphere of earth consists the following components,
1. The Biota
All the living organisms including animals, plants, insects and bacteria is called the Biota.
2. Geosphere
Geosphere is the surface of biosphere that is composed of soil, rocks, mountains etc.
3. Hydrosphere
The hydrosphere includes all the water bodies like ocean, rivers, streams and lakes.
4. Atmosphere
Atmosphere is the climate that describes about the temperature, humidity, wind and rain fall in Biosphere.
