Q: What class of animals have four limbs and produce amniotic eggs? Read this paragraph and choose the correct option from the provided answers: Mammals are a class of endothermic vertebrates. They have four limbs and produce amniotic eggs. The mammal class is defined by the presence of mammary glands and hair (or fur). Other traits of mammals include sweat glands in their skin, alveoli in their lungs, a four-chambered heart, and a brain covering called the neocortex. Choices: - reptiles - insects - amphibians - mammals A:
mammals

Q: How many types of bosons are there? Read this paragraph and choose the correct option from the provided answers: There are four known types of bosons, which are force-carrying particles. Each of these bosons carries a different fundamental force between interacting particles. In addition, there is a particle which may exist, called the "Higgs Boson", which gives objects the masses they have. Some types of bosons have mass; others are massless. Bosons have an electric charge of +1, -1, or 0. Choices: - three - one - five - four A:
four

Q: What bodily substance is formed from cells, and in turn helps make up organs? Read this paragraph and choose the correct option from the provided answers: Organisms are organized in the microscopic level from atoms up to cells. The matter is structured in an ordered way. Atoms are arranged into molecules, then into macromolecules, which make up organelles, which work together to form cells. Beyond this, cells are organized in higher levels to form entire multicellular organisms, as shown in Figure below . Cells together form tissues, which make up organs, which are part of organ systems, which work together to form an entire organism. Of course, beyond this, organisms form populations which make up parts of an ecosystem. All of Earth's ecosystems together form the diverse environment that is Earth. Choices: - tendons - muscles - ligaments - tissues A:
tissues

Q: What are the specfic types of proteins that determine your blood type called? Read this paragraph and choose the correct option from the provided answers: Red blood cells carry proteins called antigens on their surface. People may vary in the exact antigens their red blood cells carry. The specific proteins are controlled by the genes they inherit from their parents. The particular antigens you inherit determine your blood type. Choices: - Plasma - antibodies - Globulins - antigens A:
antigens