Some species form social groups only with members of the same gender. for example, elephants form groups with only females and their offspring. once the male offspring reach a certain age, they leave the group and become solitary. which is a benefit of this type of social group structure? females do not have to compete for a mate. male offspring can belong to more than one social group. adult males can mate with females in several different social groups. females are the only ones responsible for taking care of the offspring.

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Hybrid instruments that play sounds that are part sampled and part synthesized are known as:

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.