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Which cellular organelle uses DNA to make proteins for the cell?
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
Which of the following statements best describes how Charles Darwin would explain giraffes with long necks?
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
Some types of bacteria can only live where oxygen is not present. These bacteria were well adapted to life on Earth over 2 billion years ago.Which of the following changes caused many of these bacteria to become extinct?
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
The bones of a whale flipper are similar to the bones of a bat wing as shown below. What does this similarity in bone structure suggest about the whale and bat?
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
The human eye is explained by scientists to have developed
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
Sunlight is converted to food in plant cells in what organelle?
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
A student prepared the list of characteristics about a cellular organelle: present in plants, present in animals, makes ATP. Which of the following cellular structures is the student describing?
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
Substances enter any plant or animal cell by passing through which of the following structures?
ribosomes
cell membrane
chlorplasts
an increase in the number of photosynthetic organisms
as a series of random, helpful mutations over millions of generations
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
They evolved from a common ancestor.
mitochondrion
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