Part D The idea of molecular clock genes has been studied for decades, but the hypothesis remains a controversial
topic in evolutionary biology. Why do you think that is the case? What are three questions you still have
about the use of molecular clocks?

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Explain why phospholipid molecules form a bilayer. (3 marks)

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to