Which of the following explains why plants have chloroplasts in their cells and animals do not, but both animal and plant cells have mitochondria?
A)
B)
Animals have mitochondria to make sugar through photosynthesis, but
plants have chloroplasts to make sugar through photosynthesis
Plants have chloroplasts to break down sugar into usable energy, but
animals have mitochondria to break down sugar into usable energy
Animals and plants have mitochondria to break down sugar into usable
energy and plants contain chloroplasts because they are able to make
sugar through photosynthesis
Animals and plants have mitochondria to make sugar through
photosynthesis and plants contain chloroplasts because they use them to
break down sugar into usable energy
D)
Eliminate
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unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.