Choose one of the two major phases of photosynthesis. Draw a model of that phase that corrects one of the weakness in the students original model.

Below is attached a drawing of the light-dependent phase of photosynthesis.

Explanation:

Summarizing what is in the drawing, when the leaf of a plant absorbs sunlight, that light is captured by the PSII (photosystem II), with which the electrons of a chlorophyll are very excited and with a very large energy charge. These electrons are captured by the primary electron acceptor and electrons are simultaneously captured from the water, so that the energy is stabilized. The electrons we eat are then transported through cytochrome b6f to the PSI (photosystem I), where the electrons develop an energy imbalance, just as it was done in the PSII, these electrons are again captured by the electron acceptor molecule, which takes them to the ferredoxin that transports them to the ATP syntax for the production of ATP.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

credit: gradman555p98x9p

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the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )