On which of the following could a scientific claim be based? A a famous athlete's speech
B
a religious text
С
superstitions and folklore
D
experiments and studies

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing