Which is an important difference between light-dependent (L-D) and light-independent (L-IND) reactions in photosynthesis? The L-D reactions need CO2 and light energy, and the L-IND reactions needs water and O2. The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH, and CO2. The L-D reactions can only occur during daylight, and the L-IND reactions can only occur during the night. The L-D reactions need water and CO2, and the L-IND reactions need CO2 and light.

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

In eukaryotes, genetic information is passed to the next generation by processes that include mitosis or meiosis. which of the explanations identifies the correct process and supports the claim that heritable information is passed from one generation to another? a. mitosis, followed by cytokinesis, produces daughter cells that are genetically different from the parent cell, thus insuring variation within the population. b. during mitosis, dna replication occurs twice within the cell cycle to insure a full set of chromosomes within each of the daughter cells produced. c. in asexual reproduction, a single individual is the sole parent and passes copies of its genes to its offspring without the fusion of gametes. d. single-celled organisms can fuse their cells, reproducing asexually through mitosis to form new cells that are not identical to the parent cell.

Which part of cellular respiration must occur before any of the other steps can occur