Answer the following question given this paragraph: where m is the mass of the system. Experiments have shown that acceleration is exactly inversely proportional to mass, just as it is exactly linearly proportional to the net external force. Q: Experiments have shown that acceleration is exactly inversely proportional to mass, just as it is exactly linearly proportional to what? Choices: - net internal force - speed - kinetic energy - net external force A:
net external force

Answer the following question given this paragraph: Cells with different functions often have different shapes. The cells pictured in Figure below are just a few examples of the many different shapes that cells may have. Each type of cell in the figure has a shape that helps it do its job. For example, the job of the nerve cell is to carry messages to other cells. The nerve cell has many long extensions that reach out in all directions, allowing it to pass messages to many other cells at once. Do you see the tail-like projections on the algae cells? Algae live in water, and their tails help them swim. Pollen grains have spikes that help them stick to insects such as bees. How do you think the spikes help the pollen grains do their job? ( Hint: Insects pollinate flowers. ). Q: Different shapes often correlate with different what in cells? Choices: - systems - enzymes - types - functions A:
functions

Answer the following question given this paragraph: The human body radiates heat in the range of infrared light. Night goggles work by 'seeing' the infrared light emitted by our bodies. Q: What piece of technology can you use to see infrared light? Choices: - light meters - microscope - telescope - night goggles A:
night goggles

Answer the following question given this paragraph: Like the stem, the leaf contains vascular bundles composed of xylem and phloem (Figure 30.27). The xylem consists of tracheids and vessels, which transport water and minerals to the leaves. The phloem transports the photosynthetic products from the leaf to the other parts of the plant. A single vascular bundle, no matter how large or small, always contains both xylem and phloem tissues. Q: Like the stem, what basic plant structure contains vascular bundles composed of xylem and phloem? Choices: - root - flower - bark - leaf A:
leaf