Active transport requires energy because it moves molecules across a membrane to a region of lower to higher concentration which is often against their concentration gradient or has an obstructing factor.
Answer:
Sun - Solar system - Local group - Milky way galaxy - Universe
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The lining of the uterus, and the fallopian tube.
Answer:
1. 0% of probability, 2. 50% of probability, 3. 75% of probability.
Explanation:
In order to find the probabilities we have to draw Punnet squares. The mutated gene will be symbolized with a *.
1. Male CC with female CC, there is no mutation, the probability will be 0%.
X Y
X ║ XX ║ XY
X ║ XX ║ XY
2. The male has not got a mutation and the female has. When we draw the Punnet square, with one female X mutated, we find that there is a 50% of probability of mutation.
X Y
X* ║ X*X ║ X*Y
X ║ XX ║ XY
3. Now both, the female and the male, has the mutation. When we draw the Punnet square with mutations in the female and in the male, we find that there is a 75% of probability of mutation.
X* Y
X* ║ X*X* ║ X*Y
X ║ XX* ║ XY
Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
