, 12.11.2019 05:31, elijahcraft3

# When stomata are open and a plant is transpiring normally, how does water move from the soil into the root xylem? select all that apply. a) driven by evaporation from the leaves b) driven by pressure generated by roots c) pumping water upward due to a tension that pulls the water upward without the plant doing any additional work on the fluid d) due to the action of atp-driven pumps in the endodermis.

### Other questions on the subject: Biology

Biology, 21.06.2019 22:00, ayeasley7777
Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.
Biology, 22.06.2019 03:00, seahorse0
To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)â€”two within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.
Biology, 22.06.2019 09:00, wavy419
Select all that apply genes are specific nucleotide sequences occur in numbers that are the same as the number of chromosomes are located in a specific place on a chromosome determine the traits of an organism are units of rna