Agroup of scientists studied the invasion of a species in an area and its effect on the population of a native species. study the given data and determine the percent decrease in the native species population between years 1 and 2 and years 2 and 3.population of native species year 17,950year 23,460year 31,380n. 49.6% and 55.3%b. 56.5% and 60.1%c. 52.5% and 63.3%d. 50.4% and 68.9%e. 54.3% and 67.6%

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment