Answer:
B. How soon the organism is able to reproduce.
Living organisms use two major types of energy storage. Energy-rich molecules such as glycogen and triglycerides store energy in the form of covalent chemical bonds. Cells synthesize such molecules and store them for later release of the energy.
Answer:
A
Explanation:
Today, the atmosphere holds about 21 per cent oxygen. ... When the first simple organisms appeared in the oceans more than 3.5 billion years ago, the atmosphere was mostly nitrogen, hydrogen, water vapor, and carbon dioxide
Breathing is the exchange of gases between animals & the environment.
Rotational symmetry is radial symmetry which means that the shape is the same after several rotations. In five-fold rotational symmetry<span> the number of distinct orientations in which the object looks the same is five. </span>
Living organisms whose shapes have five-fold rotational symmetry are sea stars (starfish) and sea urchin. They <span>can be mapped onto itself through rotation about a central point by an angle of 2π/5. </span>
