Channel proteins is the answer to your question
Answer:
Without naturally occurring greenhouse gases, Earth's average temperaturewould be near 0°F (or-18°C) instead of the much warmer 59°F (15°C). The concentration of greenhouse gases, especially carbon dioxide and methane, has fluctuated naturallyover geological time scales.
The answer is C because plants and animals need nutrients to life
B. its false it's the other way around gametes are produced by gametangia :)
<span>Sensory evaluation makes use of the remarkable virtuosity and range of the human senses as a multi-purpose instrument for measuring the sensory characteristics of foods. </span>
