As hominids evolved, they created increasingly sophisticated tools. based on this information, which of
the following is the best inference that can be made? (1 point)
o. as their cognitive abilities increased, the size of their brains also increased.
in order to communicate how to make the tools, they must have been capable of language.
developing tools facilitated the transition to walking upright.
using tools enabled them to obtain food, so their weight-to-height ratio also increased.

Organisms that successfully adapt will leave to grownone of the above

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

Describe characteristics of a good respitory surface