Mutualism

a. under what conditions would natural selection favor mutualism between two species? i. if the cost of the other species benefits the other species enough ii. when a species another species to benefit itself
b. true/false: in a mutualistic relationship, neither species evolves traits suited to theother… false
c. which of the following are mutualistic: (lichens) (viruses) (coral) (acacia trees) (africanlions) i. acacia trees and ants ii. coral reefs and algae iii. lichens and fungus and alga

Situation #2: imagine that you are a newspaper editor in columbus, oh in 1863. the civil war has been dragging on for more than two years already and shows no signs of ending soon. you are aware that many black males are willing to enlist in the union army but you fear that they may be mistreated and abused by the majority of soldiers on either side in this war. write a one-page letter (double spaced) editorial for tomorrow's edition of the newspaper. the topic is military service in the union army by free african american males. in your editorial, take a clear position for or against having black men join the fight. be sure to give reasons for whatever position you choose to take.

There are 25 elements found in living things. how many of these elements are found in some organisms but not all? 1 , 6 , 19 , 25

How has our understanding of the first sentence of the declaration of independence changed over time?