Use the following words and phrases to answer the questions below with the best possible answer. some phrases will be used more than once.
succession primary succession secondary succession
soil climax community pioneer species
1. a forest of pine trees is burned over a 10 mile area when lightning strikes a tree. in the spring, a few seedlings begin to sprout. this is an example of:
2. a glacier has scraped all soil from a rocky area. as it slowly retreats, some of the rock is broken down by weathering. some moss begins to grow. this is an example of:
3. an old-growth forest has remained the same combination of hickories and oaks for 100 years. this is an example of a:
4. small organisms, such as lichens, break up bare rock into soil. a lichen is an example of a:
5. a pond slowly fills in as algae and other plants die and fall to the bottom. this is an example of:
6. a volcano erupts creating a new island. this is an example of:
7. the process of primary succession begins with the formation of over time the once empty rock surfaces will become populated with organic material.
occurs when ecosystems change over time through the progressive replacement of species.
Answers: 1
Biology, 22.06.2019 01:00, nikoidurrant
Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.
Answers: 1
Biology, 22.06.2019 02:30, afloyd642
Drag each tile to the correct box. arrange the phases of mitosis in the correct order. 1 (condensation of chromosomes) 2 (separation of chromosomes) 3 (formation of spindle fibers) 4 (alignment of chromosomes in the center of the cell) 5 (pinching of the cell membrane)
Answers: 2
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