A variety of pear tree known as Bradford was originally introduced into the eastern United States in the 1960s. Today, this tree is crowding out other plants in these states. this situation best illustrates

Which has higher air pressure-warm air or cold air? How do you know?

The order of rock layers are used to determine this. It can tell scientists the order of the rock layers and events but not the exact time the fossils were formed. Absolute Dating Relative Dating Radioactive Dating

How is ruminants stomach different from human stomach?

Explain how the reactants and products of photosynthesis and cellular respiration are related.

Which of the following are NOT examples of data? a. facts b. figures c. theories d. measurements

Describe what is happening to the chromosomes during each sub-phase of Meiosis I and Meiosis II.

What accounts for genetic biodiversity existing in modern multicellular organisms?

Torri and Tamara are both performing scientific investigations on the learning capabilities of mice. In Torri's experiment, she sets up two knobs in a cage with a mouse. When the mouse touches the knob on the left, it receives a small shock.

What did Chargaff discover while studying bases in the DNA of organisms?

Russia's system of government and identify its basic structure.