The chart below shows several species found in a pond ecosystem and the ph levels in which the species can survive the
nomal ph of the pond is 6.5
ph
6.5 6.0 5.5 5.0
clams
bass
snails
trout
in the ph of the pond tell to 50 due to acid rain which of the species shown
the chat would mostika sur
)
a bass
b. dams
o
trout

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.