The independent is the amount of time you do sit-ups the dependant is your heart rate because it will speed up
the control is how much effort that you put out doing sit ups
They produce narrow-band high-frequency sound to help them navigate in water. These high-frequency sounds are used in echolocation. Echolocation is used to identify and locate prey and also avoid the predators. Marine mammals like whales and dolphin use echolocation in different manners.
<span>ny scientist studying a species could change the name. These long ... To classify organisms, scientists use similarities and differences among species. ... MATERIALS ... also use genetic evidence, which is found within an organism's DNA.</span>
Answer:
Community
Explanation:
It has two or more species within the same geographical area (Backyard) within the same time period.
The answer is letter A.
<span>Organelles and other cellular material are held within a cell by a cellular membrane. These membranes are what consist of a cell's exterior.
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