Question 4 in order to obtain energy, plants must do what? a- consume food b- produce food c- make new cells d- release seeds question 6 how does a penguin increase the chance of the survival of its species? a- it lays one egg. b- it lays thousands of eggs c- it nutures its young d- it splits into two. question 7 which of these is not a basic need of all organisms? a- food b- soil c- water d- appropriate enviornment question 8 what do all living things not need? a- energy b- a place to live c- water d- parents question 13 how does the human body maintain itself during exercise? a- it releases sweat to heat up. b- it releases sweat to cool down. c- it absorbs sweat to heat up. d- it absorbs sweat to cool down. question 15 taxonomy is the study of what? a- plants b- composition of organisms c- classification of organism d- genes question 17 what is a dichotomous key used for? a- creating organisms b- classifying organisms c- naming organisms d- finding organisms question 23 the backbone of sugar molecules is a- sulfur b- oxygen c- carbon d- nitrogen question 24 the four fundamental types of organic molecules are nucleic acids, proteins, carbohydrates, and a- lipids b- nitrates c- sulfates d- phosphates