False. There are three different ones.
Igneous: Melting and Cooling
Metamorphic: Heat and Pressure
Sedimentary: Weathering, Erosion, Deposition, and Compaction
Metacognition is “thinking about thinking” (or "knowing<span> about knowing")</span>. <span>Metacognition is defined as the knowledge we have about our own cognitive processes, like thinking. It includes knowledge about when and how to use particular strategies for learning or for problem-solving. It is also the ability to control our thinking processes through strategies, such as organizing, monitoring or adapting.</span>
Answer:
False
Explanation:
A double-helical DNA molecule consists of two DNA strands. A DNA strand has free 5' phosphate at one end and a free hydroxyl group (OH) at its 3' end. A DNA double helix is said to be antiparallel since each end of the double helix has an exposed 5' phosphate on one strand and a free 3' hydroxyl group (OH) on the other. This means that the two DNA strands run in opposite directions. A phosphate group is always esterified to the 5' carbon of the pentose sugar; never at its 3' end.
The correct answer is: The speed of sound is faster in the water than in the air.
The speed of sound is different between those two mediums because they have different densities. Since, water is denser than air, more energy is required to generate a wave but once it stars, it travels faster than it would do in air. Sound waves’ travel can be presented by particles that transmit the energy one to another as they bump. The sound speed is lower in the air (than in water) because particles are far apart, so they travel further before they collide.
3.Even though there are some dna traces in the mitochondria,it’s won’t really be tested for gcse and mostly the DNAs are found in the nucleus of the cell.
