Francesco redi performed an experiment in 1668. in the experiment, he placed rotting meat in two jars. the first jar was left open. after a few days, fly larvae were found on the decaying meat inside. the mouth of the second jar was covered with gauze. after a few days, the decaying meat inside was free of fly larvae, but larvae were found on the gauze. this experiment supports the hypothesis that -

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Give examples of selective advantage of organism’s body part/organ

Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.