Phoresy is a smaller creatures that uses larger creatures to move large distances. Altruism is the behavior where an animal puts another's needs before their own. Commensalism is a beneficial relationship for one party and nutral to the other. Mutualism is beneficial to both parties.
The answer is Altruism.
The fusion of the egg cell and Sperm cell.
<span>The correct answer is desert biome.</span>
Deserts are regions also called drylands because of the conditions found there (like a moisture deficit). Desert plants have to adapt to those dry and hot climates (sometimes without fresh water for years). Some plants have adapted by growing long roots that tap water from deep underground. Others, such as cacti, have special means of storing and conserving water (modifications of leaves for example).
