A painter needs to buy a ladder in order to paint a wall that is feet high 23. In order to ensure the ladder does not fall it
needs to be placed 3 feet away from the wall. What size ladder does the
painter need to buy to ensure that he will be able to paint the highest
point of the wall? Write your answer rounded to the nearest tenth.

Models are non-visual ways of coummincating how someone thinks about something in the natural world

What organelle other than the nucleus houses dna in a eukaryotic cell?

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.