The answer would be A) Cranial
Aluminum and zinc are substances that will be attacked by a corrosive acid just for making hydrogen gas
Plants will lean toward sunlight
<span>fish will swim in an opposite direction if a leaf from a tree falls on the top of a calm pond </span>
<span>some animals will develop thicker fur coats because of climate </span>
<span>turtles poke their heads into their shell when they hear a noise or are frightened </span>
<span>a community may move to a different area where theres more food and water cause a stream dried up </span>
<span>man .. this list can go forever .. </span>
<span>you might want to try limiting the scope </span>
<span>try looking up 1. Charles Darwin and evolution 2. natural selection, sexual selection & gene flow 3. response to stimuli / ecosystems. large topic. GOOD LUCK!</span>
<h2>Energy </h2>
Explanation:
Energy flows in only one direction through an ecosystem
- The Sun supports most of Earth's ecosystems
- Plants create chemical energy from abiotic factors that include solar energy and chemosynthesizing bacteria create usable chemical energy from unusable chemical energy
- The food energy created by producers is passed to consumers, scavengers, and decomposers
- Energy flows through an ecosystem in only one direction, it is passed from organisms at one trophic level or energy level to organisms in the next trophic level
- Most of the energy at a trophic level – about 90% – is used at that trophic level and organisms need it for growth, locomotion, heating themselves, and reproduction
- So animals at the second trophic level have only about 10% as much energy available to them as do organisms at the first trophic level
- Animals at the third level have only 10% as much available to them as those at the second level
