Answer:
(A). Energy is lost when machines don't work right.
Explanation:
The false statement from the choices is that energy is lost when machines do not work right.
The law of conservation of energy states that "energy can neither be created nor destroyed , they can only be converted from one form to another. "
- Option B is clearly covered by the statement of the law. All the energy of the universe is already created.
- Energy cannot be destroyed tallies with the Option C.
- Energy is transformed from one form to another validates the fourth choice. We can covert from thermal to mechanical energy and vice versa.
The only odd choice is that energy is lost when a machine doesn't work right.
Answer:
It would most likely kill the cell.
Explanation:
If a cell's membrane is fully permeable (not semi-permeable) then substances that are harmful to the cell are more than likely to enter it at one point or another, which can pretty much end up killing it.
In short, the semi-permeable membrane is there to ensure that only the useful stuff gets in and that the bad stuff stays out.
Answer: c. The same as the phenotype of a homozygous AA person.
Explanation: The capital A represents the dominant property of the person’s genes. The lowercase a is recessive. This means that the dominant quality will always trump the recessive quality. That is why they are the same as the homozygous AA person.
Answer:
i believe it is they create a chemical compound
Explanation:
Answer:
A) 300
B) 3:1
C) 9 long yellow : 3 long green : 3 short yellow : 1 short green
Explanation:
Long stems (L_) are dominant to short stems (ll)
Yellow seeds (Y_) are dominant to green seeds (yy)
We interbred pea plants with long stems and yellow seeds (L_Y_), but they had a short green parent (llyy) that could have only produced <em>ly</em> gametes, so our plants are heterozygous <em>LlYy</em>.
C) We interbred them LlYy x LlYy. If the two genes are unlinked, this is a typical dihybrid cross and from Mendel's law of independent assortment we know that the offspring will have the following phenotypic ratios:
- 9/16 L_Y_ (Long, yellow)
- 3/16 L_yy (Long, green)
- 3/16 llY_ (short, yellow)
- 1/16 llyy (short, green)
A) 3/16 × 1600 = 300 plants will be long and green.
B)
9/16 + 3/16 = 12/16= 3/4 plants will be yellow;
3/16 + 1/16 = 4/16= 1/4 plants will be green.
The ratio will be 3 yellow : 1 green
