Frogs are amphibians. Like all amphibians, frogs are cold-blooded, meaning that their body temperatures change with the temperature of their surroundings. When temperatures drop, some frogs dig burrows in the mud at the bottom of ponds. They hibernate in these burrows until spring, perfectly still and barely breathing. Frogs can be found just about anywhere there's fresh water, on all continents except Antarctica. Though they thrive in warm, moist tropical climates, frogs also live in deserts and high on 15,000 foot mountain slopes. The Australian water-holding frog is a desert dweller that can wait for seven years for rain. It burrows underground and surrounds itself in a transparent cocoon made of its own skin. Frogs' skin is critical to their survival. Through it, they drink and breathe. Frogs don't swallow water; they get the moisture they need through their skin. And although frogs have lungs, they rely on the oxygen they absorb through their skin, especially when they're underwater. Frogs must keep their skin moist. Otherwise, oxygen does not easily pass through it and the frog suffocates. Even though frog skin secretes a mucus that helps keep it moist, their skin tends to dry out easily, which is why they usually stay near bodies of water.
Consider the bar graph comparing the number of frogs in four different habitats. Based on the information above about frogs, what is the MOST LIKELY factor limiting the frog population?

A) competition
B) food
C) space
D) water

All forces cause motion? true or false

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance

Complete each row of the table below by filling in the missing prefix or missing exponent.