List the letters in order to complete a timeline below that summarizes the events of succession. A. Lichens appear on the rocks. B. A glacier retreats and leaves behind only gravel deposits. C. Trees begin to grow D. Mosses appear as the rocks are broken down into soil. E. Small shrubs take root and displace the grasses. F. Plants and grasses start to grow Answer

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. threat method number of species that benefit number of years to see benefit habitat fragmentation reforestation 450 8 introduced prey species biological augmentation 150 2 which statement is an accurate explanation of the information in the table? a. biological augmentation would benefit only a few species because it is typically not very effective. b. biological augmentation would take less time to be effective because it targets the majority of prey species. c. reforestation would take the longest time to be effective because trees take several years to grow. d. reforestation would not benefit many species because most forest species live on the ground.

What are the formed elements (cell or parts of cell) in blood and what are their functions ?