Q: How many years ago did early amniotes diverge into two groups? Read this paragraph and choose the correct option from the provided answers: By about 320 million years ago, early amniotes had diverged into two groups, called synapsids and sauropsids. Synapsids were amniotes that eventually gave rise to mammals. Sauropsids were amniotes that evolved into reptiles, dinosaurs, and birds. The two groups of amniotes differed in their skulls. The earliest known reptile, pictured in Figure below , dates back about 315 million years. Choices: - .175 million years - .416 million years - 20 million years - 320 million years A:
320 million years

Q: What external feature in human beings is responsible for balance? Read this paragraph and choose the correct option from the provided answers: The ears are also responsible for the sense of balance. Balance is the ability to sense and maintain body position. The semicircular canals inside the ear (see Figure above ) contain fluid that moves when the head changes position. Tiny hairs lining the semicircular canals sense movement of the fluid. In response, they send nerve impulses to the vestibular nerve, which carries the impulses to the brain. The brain interprets the impulses and sends messages to the peripheral nervous system. This system maintains the body's balance by triggering contractions of skeletal muscles as needed. Choices: - tails - brain - hands - ears A:
ears

Q: Q: What is the most widely used form of renewable energy in the world? Read this paragraph and choose the correct option from the provided answers: Moving water has energy ( Figure above ). That energy is used to make electricity. Hydroelectric power , or hydropower, harnesses the energy of water moving down a stream. Hydropower is the most widely used form of renewable energy in the world. This abundant energy source provides almost one fifth of the world's electricity. The energy of waves and tides can also be used to produce water power. At this time, wave and tidal power are rare. Choices: - wind - fossil fuel - solar - hydropower A:
A: hydropower

Question: Q: Where do most red algae species live? Read this paragraph and choose the correct option from the provided answers: Red algae are a very large group of protists making up about 5,0006,000 species. They are mostly multicellular and live in the ocean. Many red algae are seaweeds and help create coral reefs. Choices: - rivers - lakes - seas - oceans A:
Answer: oceans

*Question*
Q: What part of an atom is positive due to the presence of positively charged protons? Read this paragraph and choose the correct option from the provided answers: Charge Carried by Electrons and Protons Franklin wrote in his letters and books that he could see the effects of electric charge but did not understand what caused the phenomenon. Today we have the advantage of knowing that normal matter is made of atoms, and that atoms contain positive and negative charges, usually in equal amounts. Figure 18.5 shows a simple model of an atom with negative electrons orbiting its positive nucleus. The nucleus is positive due to the presence of positively charged protons. Nearly all charge in nature is due to electrons and protons, which are two of the. Choices: - Neutron - Proton - Electron - nucleus A:
**Answer**
nucleus

(Question)
Q: What term describes a colloidal dispersion of a liquid in either a liquid or a solid? Read this paragraph and choose the correct option from the provided answers: An emulsion is a colloidal dispersion of a liquid in either a liquid or a solid. Choices: - mix - suspension - compound - emulsion A:
(Answer)
emulsion