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Which cellular organelle uses DNA to make proteins for the cell?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
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?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
Which of the following statements best describes how Charles Darwin would explain giraffes with long necks?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
Which term refers to the process by which individuals in a population that are better adapted to their environment are more likely to survive and reproduce?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
What are the basic structural units of all living organisms (that can perform all life processes)?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
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?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
Substances enter any plant or animal cell by passing through which of the following structures?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
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?
an increase in the number of photosynthetic organisms
Variations produce longer and shorter-necked giraffes. Longer necked giraffes can reach food more and survive and reproduce
cell
mitochondrion
They evolved from a common ancestor.
natural selection
cell membrane
ribosomes
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