Biology, 28.07.2019 04:00, journeyburks07
How has the fertilization process of seed plants adapted to dry terrestrial conditions? a. they evolved fruit which are wet and keep the seed hydrated b. stomata close to prevent water loss c. the pine needle has thicker skin, to retain water and a needle-like shape that reduces leaf area d. the evolution of a pollen tube eliminated the need for water in the transfer of sperm to the egg submit for grading save and finish later?
Answers: 1
Biology, 22.06.2019 05:40, mountainwilson
Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion
Answers: 2
Biology, 22.06.2019 10:00, Billyr9088
Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.
Answers: 2
Biology, 22.06.2019 11:00, Loliii
Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?
Answers: 2
How has the fertilization process of seed plants adapted to dry terrestrial conditions? a. they evo...
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