Tell whether the statements are true or false.
1. cells are composed of chemicals and both the structure and function of cells are regulated by the basic principles of chemistry.
2. scientists have successfully sequenced the entire genome of humans but have not yet sequenced the entire genome of any other species.
3. living systems are the most complex chemical systems on earth.
4. living systems are governed by the same principles of chemistry and physics that govern non-living systems.
5. living organisms contain unique chemical elements which are not found in non-living systems.

What protects the lining of the stomach from acidic gastric juices?

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

Can someone pretty me with this ? it’s urgent. compare the three theories of emotion. here are the three theories of emotion. cannon-bard theory of emotion: the belief that both psychological arousal and emotional experience are produced stimultaneously ( at the same time) by the same nerve stimulus. james-lange theory of emotion: the belief that emotional experience is a reaction to bodily events occurring as a result of an external situation. ( “ i feel sad because i am crying.) schachter-singer theory of emotion: the belief that emotions are jointly determined by a nonspecific kind of psychological (bodily function) arousal and its interpretation, based on environmental ( natural surroundings) cues. which of these theories makes most sense to you? why. your response should be written using proper english spelling and grammar. and it needs to be 10 complete sentences.