Tutor profile: Bridget P.
Subject: Basic Math
If Tom has a rope that is 0.45 times Mary's rope, but 2 times Jim's rope, who has the longest rope
Marys rope is the one being compared to the others, so we will use say that Mary's rope is 1 unit. Since any number multiplied by a number larger than one will result in a greater number, Jim's rope is the longest. 1 unit x 2 = 2 units. Mary's rope would be the 2nd longest becasue it represents 1 unit. Since Tom's rope is 0.45 times Mary's rope, his will be the shortest. This is becasue any number times a number smaller than 1 will result in an answer smaller than 1. 1 unit x 0.45 = 0.45 units
How do organisms in an ecosystem interact?
Organism in an ecosystem greatly depend on one another. Through the food web, energy is passed from organism to organism. A seemingly small change in an ecosystem can have monumental side effects. For example a new bacterial that kills fish in the arctic, could effect the top preditor, a polar bear. If the population of fish decline, then the population of what eats that fish can decline. This leads to the main food source of the polar bear becoming scarce. Ecosystems are very delicate, and one change may change everything.
Subject: Physical Science
Describe the three states of matter
The three states of matter are solid, liquid, and gas, Solids have tightly packed particles and hold their shape. The liquid takes the shape of its container and particles of a liquid are able to flow past eachother. A gas also takes the shape of its container and particles are able to freely pass eachother.
needs and Bridget will reply soon.