Archive day

December 17, 2025

2,558 public questions were asked on this day.

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In what way are the light-dependent and light-independent reactions of photosynthesis similar? Both require chemical energy to proceed. Both occur in the chloroplast. Both produce oxygen as a byproduct. Both involve carb...
Asked by CHRIS 1 answer
How could these sentences be effectively combined with a coordinating conjunction? I'll go to the Rockies. I'm afraid of heights. I'll go to the Rockies, but I'm afraid of heights. I'll go to the Rockies, and I'm afraid...
Asked by Makayla 1 answer
Which statement explains how ATP and its phosphate groups are related to the energy that is used in plant processes? ADP loses a phosphate group to create ATP, which stores energy for making sugars. ADP gains a phosphate...
Asked by CHRIS 1 answer
Which speeds up the reaction between carbon dioxide and RuBP to restart the Calvin Cycle? light energy rubisco 3-phosphoglycerate glyceraldehyde 3-phosphate
Asked by CHRIS 1 answer
What role do nerve cells play in the human body? They allow the body to react to stimuli. They regulate the exchange of chemicals. They carry oxygen throughout the body. They help the organs move.
Asked by CHRIS 1 answer
The midpoint of PQ is M(, –1). One endpoint is Q(3, –5). Which equations can be solved to determine the coordinates of P? Check all that apply.
Asked by doodle bob 1 answer
How could these sentences be effectively combined with a coordinating conjunction? "I'll have to take the bus. I won't fly."
Asked by Makayla 1 answer
How could these sentences be effectively combined with a coordinating conjunction? "I'll have to take the bus. I won't fly." I'll have to take the bus, and I won't fly. I'll have to take the bus, for I won't fly.
Asked by Makayla 1 answer
Which statement best distinguishes an observation from an inference? An inference is likely to change based on additional observations. An observation is likely to change based on additional inferences. An observation in...
Asked by CHRIS 1 answer
During photosynthesis, the energy from sunlight is used to split water molecules. What happens to the hydrogen ions that are split from the water molecules? They flow out of the thylakoid, providing energy to add a phosp...
Asked by CHRIS 1 answer
Which are characteristics of epithelial cells? Select two options. are unable to be used for secretion of materials main cells of the nervous system found lining many areas that contact the external environment plays a r...
Asked by CHRIS 1 answer
At which point is G3P removed from the Calvin cycle to be used in the production of carbohydrates? during photophosphorylation during carbon fixation immediately after reduction immediately after regeneration
Asked by CHRIS 1 answer
Which specific process in the light-dependent reactions produces oxygen and hydrogen ions? the formation of NADPH the production of ATP the splitting of water the excitation of electrons in photosytem I
Asked by CHRIS 1 answer
Which statement correctly compares and contrasts the three stages of cellular respiration that occur in the presence of oxygen? Each stage occurs in the mitochondria, but only the final stage produces ATP. Each stage pro...
Asked by CHRIS 1 answer
During which step of cellular respiration is the most ATP produced? Krebs cycle glycolysis photosynthesis electron transport chain
Asked by CHRIS 1 answer
Stella wants to test the hypothesis “If carbon dioxide levels increase, the growth rate of sunflowers will increase.” She places five young sunflower plants into similar containers and sets up pumps that release differen...
Asked by CHRIS 1 answer
Which events take place in the light-dependent reactions of photosynthesis? Light energy is converted to sugars; sugars are broken down for energy. Light energy is captured by plants; light energy is used to make sugar....
Asked by CHRIS 1 answer
Which type of cells are the least limited in differentiation? adult stem cells embryonic stem cells amniotic fluid stem cells somatic stem cells
Asked by CHRIS 1 answer
Normally, a certain gene produces a short protein with the amino acid sequence methionine-lysine-serine-tyrosine. After experiencing a mutation, the gene now produces a protein with the amino acid sequence methionine-lys...
Asked by Chuck Bass 1 answer
Which best describes meiosis? It produces cells that are identical to the original cell. It is responsible for the replacement of damaged skin cells. It is responsible for growth of the organism. It produces male and fem...
Asked by CHRIS 1 answer
During which phase of meiosis does crossing over of chromosomes occur? prophase I metaphase I anaphase I telophase I
Asked by CHRIS 1 answer
The diagram illustrates one method of genetic recombination. A paternal and maternal gene cross-over. Which method of genetic recombination is illustrated in the diagram? crossing over independent assortment fertilizatio...
Asked by CHRIS 1 answer
Why is it necessary to use restriction enzymes before sequencing a DNA molecule?
Asked by Chuck Bass 1 answer
Which is a homologous chromosome pair? chromatid zygote gamete tetrad
Asked by CHRIS 1 answer
Why is meiosis important for organisms? It allows for genetic variation among organisms. It determines which genes are dominant and which are recessive. It produces genetically identical cells. It provides a means of ase...
Asked by CHRIS 1 answer