Luisa is studying how light affects photosynthesis in an aquatic plant. She places a piece of the plant in a test tube and holds it near a light. Then she measures the number of oxygen bubbles produced by the plant. She moves the light farther away from the plant and repeats the experiment. The graph shows Luisa’s results. © 2017 Measured Progress. All rights reserved. Measured Progress and its logo are registered trademarks of Measured Progress, Inc. 2 Student Assessment | Science | Biology | Form 1 Based on her experiment, Luisa makes a model to describe the process of photosynthesis, as shown. a. Describe the inputs and outputs in the model. b. Explain how increasing the amount of light will affect one output of this model. Support your explanation with data from the graph.

What are genotypes? what are phenotypes?

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn