Early hominid fossils were examined and scientist concluded these hominids exhibited bipedalism. How could they tell that by looking at their skeletal remains?

The body is protected against harmful flu viruses by

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.