You are presented with the question "Plants are multicellular eukaryotes with cell walls composed primarily of what?" and the following answer choices: - protein - plants - leaves - chemicals - Energy. - lignin - eukaryotes - Energy Now knowing that plants are multicellular eukaryotes with cell walls made of cellulose and plant cell walls are composed primarily of lignin and cellulose, choose the best answer.
lignin
You are presented with the question "Forests naturally keep what?" and the following answer choices: - ants - fish - carbon - ferns - firs - rainfall - heat - protected Now knowing that carbon may be stored in sedimentary rock for millions of years and forests are a natural store of carbon, choose the best answer.
carbon
Q: You are presented with the question "What is the study of things with cells?" and the following answer choices: - etomology - properties - cell towers - disease - animals - archaelogy - biology - fungi Now knowing that cells are the basic units of the structure and function of living things and biology is the science of living things, choose the best answer.
A: biology
Question: You are presented with the question "Why do animals learn to behave?" and the following answer choices: - exercise - survival - anger - no reason - environment - emotion - ligt - allow growth Now knowing that playing is just one of many ways that mammals and other animals learn how to behave and animals behave in a variety of ways which enhance their chances of survival and reproduction, choose the best answer.
Answer: survival
*Question*
You are presented with the question "What has no backbone?" and the following answer choices: - chimp - snail - bats - insects - monkey - sharks - coward - salmon Now knowing that mollusks are invertebrates such as the common snail and an invertebrate is an animal that has no spine, or backbone, choose the best answer.
**Answer**
snail
*Question*
You are presented with the question "what grow away from a light source?" and the following answer choices: - stems - roots - buds - fungus - cacti - flowers - fens - salmon Now knowing that plants exhibit phototropism, or growing toward a light source and roots are negatively phototropic, choose the best answer.
**Answer**
roots