Q: Q: What system of organs delivers blood to all cells of the body? Read this paragraph and choose the correct option from the provided answers: The cardiovascular system is the system of organs that delivers blood to all the cells of the body. It's like the body's lifeline. Without the cardiovascular system circulating your blood, you couldn't survive. Choices: - gastrointestinal - respiratory - integumentary - cardiovascular A:
A: cardiovascular

Q: Q: In science, what can be described as a set of steps that help us to answer questions? Read this paragraph and choose the correct option from the provided answers: The scientific method is a set of steps that help us to answer questions. When we use logical steps and control the number of things that can be changed, we get better answers. As we test our ideas, we may come up with more questions. The basic sequence of steps followed in the scientific method is illustrated in Figure below . Choices: - theory - hypothesis - scientific controls - scientific method A:
A: scientific method

Q: Q: The two ovaries are small, oval organs on either side of what part of the body? Read this paragraph and choose the correct option from the provided answers: The two ovaries are small, oval organs on either side of the uterus. Each ovary contains thousands of eggs, with about 1-2 million immature eggs present at birth and 40,000 immature eggs present at puberty, as most of the eggs die off. The eggs do not fully develop until a female has gone through puberty. About once a month, on average one egg completes development and is released by the ovary. The ovaries also secrete estrogen , the main female sex hormone. Choices: - lungs - heart - pancreas - uterus A:
A: uterus

Q: Q: What is the part of a plant whose primary role is to collect sunlight and make food by photosynthesis? Read this paragraph and choose the correct option from the provided answers: Leaves are the keys not only to plant life but to all terrestrial life. The primary role of leaves is to collect sunlight and make food by photosynthesis. Despite the fundamental importance of the work they do, there is great diversity in the leaves of plants. However, given the diversity of habitats in which plants live, it's not surprising that there is no single best way to collect solar energy for photosynthesis. Choices: - roots - stems - seeds - leaves A:
A: leaves