B. mass
stars support their weight by making more energy which means more luminosity.
Answer:
Both organisms are composed of cells, the basic unit of life, with each cell surrounded by a cell membrane. The biggest difference between prokaryotes and eukaryotes is that eukaryotes have a nucleus. They also have other membrane structures called organelles
Explanation:
wings on butterflies, bats, and birds.
The Vmax of the enzyme is 12 μmol⋅min−1
We use Michaelis-menten equation, which is given by;
Where v is velocity of reaction
Vmax = maximum rate achieved by the system
[S] = concentration of a substrate
K= Michaelis constant
Given V = 10
[S] = 5km
Now, we calculate Vmax:
10 =
Km = 1
=12 μmol⋅min−1
Learn more about Michaelis-menten kinetics here:
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Answer:
Explanation:
Pollen tubes are produced by the male gametophytes of seed plants. Pollen tubes act as conduits to transport the male gamete cells from the pollen grain—either from the stigma (in flowering plants) to the ovules at the base of the pistil or directly through ovule tissue in some gymnosperms.