Answer:
C. A hillside that has been cleared by a volcanic eruption.
Explanation:
Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire or other natural disasters. Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants.
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Answer:
First, it transports blood with oxygen and nutrients to cells all over the body. Second, it picks up waste products from the cells to be transported out of the body, and it takes the deoxygenated blood back to the lungs so it can regenerate.
Answer:
The image on the left is unicellular. Unicellular means to be made of one cell and the two on the right are multicellular, made of multiple cells.
Answer:
Option B, chemical energy to thermal energy
Explanation:
All living organism feed on food that contains energy in the form of chemical energy. Once the food is intake and processed for fulfilling energy requirement of all metabolic processes with in a cell, the remaining energy is released as heat (thermal energy). Thus, an amoeba while consuming a sugar molecule converts chemical energy with in the sugar to thermal energy in the form of energy molecules.
Hence, option B is correct
Answer:
The earth moves two ways. It spins and it moves around the sun. The spinning of the earth is called rotation. It takes the earth abut 24 hours, or one day, to make one complete rotation.
Explanation:
The earth moves two ways. It spins and it moves around the sun. The spinning of the earth is called rotation. It takes the earth abut 24 hours, or one day, to make one complete rotation.
