38) I believe the correct answer would be letter D: ions are moved against the concentration gradient.
39) I believe the correct answer is letter A: the DNA information for development was silenced in differentiated cells. This is because the frog did not go through <span>embryonic development.</span>
Answer:
Option C, Paramecium
Explanation:
Complete question
Which of these organisms contains no specialized cells?
a. Sea anemone
b. Jellyfish
c. Paramecium
d. Sponge
Solution -
Paramecium consists of only cell and hence the chance of it having specialized cells is nill. Its size is somewhere around between 50 to 300 micrometer. It belongs to kingdom Protista and is a single celled eukaryote. While on the other hand sea anemone, sponge and jelly fishes are multicellular with various special structures such as tentacles, cilia , flagella. Hence, these three must be having specialized cell.
Answer:
When precipitation exceeds evapotranspiration and runoff in an area, the result is moist soil and possible flooding. Vegetation reduces runoff in an area but increases evapotranspiration. ... The volume of water moved by a stream in a given time period.
: ) x
