Answer the following question given this paragraph: Heterotrophs cannot make their own food, so they must eat or absorb it. For this reason, heterotrophs are also known as consumers . Consumers include all animals and fungi and many protists and bacteria. They consume either autotrophs or other heterotrophs. Heterotrophs show great diversity and may appear far more fascinating than producers. But heterotrophs are limited by their utter dependence on those autotrophs which originally made the food. If plants, algae, and autotrophic bacteria vanished from Earth, animals, fungi, and other heterotrophs would soon disappear as well. All life requires a constant input of energy. Only autotrophs can transform that ultimate, solar source into the chemical energy in food which powers life, as shown in Figure below . Q: Because heterotrophs cannot make their own food, what are they called? A:

OPTIONS:
- products
- destroyers
- customers
- consumers

Answer: consumers

Problem: OPTIONS:
- suction and sulfur oxides
- compost and sulfur oxides
- carbon dioxide and sulfur oxides
- nitrogen and sulfur oxides
Q: Answer the following question given this paragraph: Courtesy of the U. S. EPA. Nitrogen and sulfur oxides combine with rain to form acid rain . Public Domain. Q: What combines with rain to form acid rain? A:
Answer: nitrogen and sulfur oxides

Problem:OPTIONS:
- coal
- liquid
- steel
- metal

Answer the following question given this paragraph: Alloys are mixtures of materials, at least one of which is a metal. Q: Mixtures of materials called alloys contain at least one of what type of material? A:
****
A: metal

Answer the following question given this paragraph: A radioisotope has atoms with unstable nuclei. Unstable nuclei naturally decay, or break down. They lose energy and particles and become more stable. As nuclei decay, they gain or lose protons, so the atoms become different elements. This is illustrated in the Figure below . The original, unstable nucleus is called the parent nucleus. After it loses a particle (in this case a type of particle called an alpha particle), it forms a daughter nucleus, with a different number of protons. Q: What has atoms with unstable nuclei? A:
OPTIONS:
- hydrocarbon
- microwaves
- radionuclide
- radioisotope
radioisotope

Answer the following question given this paragraph: Most fungi are multicellular, but some exist as single cells. Fungi spend most of their life cycle in the haploid state. They form diploid cells only during sexual reproduction. Like the cells of protists and plants, the cells of fungi have cell walls. But fungi are unique in having cell walls made of chitin instead of cellulose. Chitin is a tough carbohydrate that also makes up the exoskeleton (outer skeleton) of insects and related organisms. Q: What type of state do most fungi spend their lives in? A:
OPTIONS:
- triploid
- meiosis
- diploid
- haploid

Answer: haploid

input with options: Answer the following question given this paragraph: Around 1850, a German doctor named Rudolf Virchow was observing living cells under a microscope. As he was watching, one of the cells happened to divide. Figure below shows a cell dividing, like the cell observed by Virchow. This was an "aha" moment for Virchow. He realized that living cells produce new cells by dividing. This was evidence that cells arise from other cells. Q: German doctor rudolf virchow first discovered what process when studying living cells under a microscope? A:
OPTIONS:
- radiation
- evolution
- photosynthesis
- cell division
output:
cell division