Q: The curie (ci) is one measure of the rate of what? Read this paragraph and choose the correct option from the provided answers: The curie (Ci) is one measure of the rate of decay (named after Pierre and Marie Curie). One curie is equivalent to 3.7 10 10 disintegrations per second. Since this is obviously a large and unwieldy number, radiation is often expressed in millicuries or microcuries (still very large numbers). Another measure is the becquerel (Bq) , named after Henri Becquerel. The becquerel is defined as an activity of one disintegration/second. Both of these units are concerned with the disintegration rate of the radioactive isotope and give no indication of dosage to the target material. Choices: - spin - division - growth - decay A:
decay

Q: What type of evolution often happens in species that have symbiotic relationships? Read this paragraph and choose the correct option from the provided answers: Coevolution often happens in species that have symbiotic relationships. Examples include flowering plants and their pollinators. Choices: - retrogression - succession - spontaneous evolution - coevolution A:
coevolution

Q: 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:
A: antigens

Question: Q: Which organelle is often compared to a post office, moving proteins and lipids to where they need to go? Read this paragraph and choose the correct option from the provided answers: The Golgi apparatus is a large organelle that sends proteins and lipids where they need to go. It's like a post office. It receives molecules from the endoplasmic reticulum. It packages and labels the molecules. Then it sends them where they are needed. Some molecules are sent to different parts of the cell. Others are sent to the cell membrane for transport out of the cell. Small bits of membrane pinch off the Golgi apparatus to enclose and transport the proteins and lipids. You can see a Golgi apparatus at work in this animation:. Choices: - the nucleus - the cytoplasm - the cell wall - the golgi apparatus A:
Answer: the golgi apparatus

*Question*
Q: What happened to earth's species during the permian period? Read this paragraph and choose the correct option from the provided answers: The Permian Period ended with Earth's second mass extinction. During this event, most of Earth's species went extinct. It was the most massive extinction ever recorded. It's not clear why it happened. One possible reason is that a very large meteorite struck Earth. Another possibility is the eruption of enormous volcanoes. Either event could create a huge amount of dust. The dust might block out sunlight for months. This would cool the planet and prevent photosynthesis. Choices: - evolution - duplication - division - mass extinction A:
**Answer**
mass extinction

*Question*
Q: Major climate types are based on what two things? Read this paragraph and choose the correct option from the provided answers: Major climate types are based on temperature and precipitation. These two factors determine what types of plants can grow in an area. Animals and other living things depend on plants. So each climate is associated with certain types of living things. A major type of climate and its living things make up a biome . As you read about the major climate types below, find them on the map in Figure above . Choices: - topography & temperature - environment & precipitation - oxygen & precipitation - temperature & precipitation A:
**Answer**
temperature & precipitation