Which of the following changes in deciduous forests occurs in the spring? A. Trees regain their leaves.
b. Trees block the flow of water and nutrients to their leaves.
C. The leaves of trees begin to lose their chlorophyll.
d. Trees live off of stored nutrients.

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase