Read the statements below, which student conducted a scientific investigation? A.) Amy laid a bundle of sticks and a bundle of yarn near the nesting site of local birds and measure how many birds preferred sticks to yarn

B.) Melanie set two different types of bird food in identical feeders in the same location and recorded the number of birds that visited each feeder

C.) Brigitte created a replica of an ecosystem that houses local birds

D.) Phillip researched the types of birds in the area and their natural food preference

1. the passing of is the basis of heredity. 2. our encode the instructions that define our traits. 3. each of us has thousands of genes, which are made of and reside in our chromosomes. 4. in addition to our genes, the we live in also define our traits. 5. humans have two complete sets of chromosomes. 6. when parents conceive a child, each parent contributes set of chromosomes. 7. every child receives of its chromosomes from the mother and half from the father. 8. this transfer takes place at when the father’s sperm joins the mother’s egg. 9. while most cells in our bodies have two sets of chromosomes, or a total of egg and sperm each have chromosomes. 10. when egg and sperm unite they create a single cell called a 11. each parent contributes complete set of chromosomes to their child. 12. since the parents contribute the chromosomes to each new child, every child inherits a unique set of chromosomes. 13. as a result, every baby will have a combination of traits.

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp