In the temperate rain forest, the establishment of new tree seedlings is limited by the lack of light reaching the forest floor
Indicate whether the statement is true or false
TRUE
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Which of the following is a difference between primary and secondary succession?
A. Primary succession describes the evolution of plants, and secondary succession describes the evolution of animals. B. Primary succession is the start of evolution, and secondary succession occurs when there is a mass extinction. C. Primary succession only occurred once, when life first evolved on earth billions of years ago. D. Primary succession occurs after severe disturbances or on new land unoccupied by life, and secondary succession occurs after a less severe disturbance to an existing community. E. Primary succession is much more common than secondary succession.
According to the endosymbiont hypothesis, what cellular components originated from free-living bacterial cells?
a. mitochondria and nucleus b. nuclei and ribosomes c. chloroplasts and ribosomes d. chloroplasts and mitochondria e. endoplasmic reticulum and mitochondria
Which of the following is TRUE of cell division?
A) The hereditary information is DNA in the parent cell and RNA in the daughter cells. B) Each daughter cell receives half of the cytoplasm from the parent cell. C) Three daughter cells are produced from one parent cell. D) Each daughter cell receives one-third of the hereditary information in the parent cell.
The female gametophyte in flowering plants forms in a _____
a. calyx b. carpel c. receptacle d. corolla e. stamen