Star A has a mass 20 times that of the Sun, while star B is a low-mass star. Based on this information, which of the following conclusions is most likely true? A. Star A will enter the main sequence as a red giant, whereas star B will enter the main sequence as a black dwarf.

B. Star A will enter the main sequence as a supergiant, whereas star B will enter the main sequence as a red giant.

C. When star A burns through its fuel, it will become a white dwarf; when star burns through its fuel, it will explode in a supernova.

D. When star burns through its fuel, it will become a white dwarf; when star burns through its fuel, it will explode in a supernova.

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the appropriate blanks in the sentences on the right. match the words in the left column to the appropriate blanks in the sentences on the right. terms may be used more than once. make certain you have filled every blank with a term before clicking submit. 1. deciduous trees lose their leaves seasonally and include trees such as maple and elm. 2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include cedar and pine. 3. evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, elm, and pine. 4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as maple, , and cedar. elm returned you filled in 2 of 10 blanks incorrectly. mango trees are tropical broad leaf plants that maintain their leaves all year long. no credit lost. try again.

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.