determine<span> how earthworms<span> present in </span>soil<span> influence </span>plant development<span>.... this includes tomato, green </span>beans<span> and radish </span>plants<span> in </span>soil<span> samples with</span> earthworms<span>,... For this </span>experiment<span>, the independent variable concerns </span>whether<span> or </span>not<span> the presence of </span>earthworms<span>...</span>
</span>
Answer:
A. The ecosystem absorbs significant rainfall, aiding in flood prevention.
C. At times throughout the year, water may either saturate the soil or remain just beneath its surface.
D. It might be classified as a freshwater bog, swamp, or marsh.
Explanation:
Answer B is the only one that stands out from the rest, as it directly pertains to a river.
Answer:
a. M_D_: 9/16 Individuals with black fur
b. M__dd: 3/16 Individuals with gray fur (1/16 MMdd + 2/16 Mmdd)
c. mmD_: 3/16 Individuals with brown fur (1/16 mmDD + 2/16 mmDd)
d. mmdd: 1/16 Individuals with gray fur.
Explanation:
Provided data includes:
- The dense pigment gene, D, corresponds to melanophilin.
- The D allele is dominant over d.
- The M/m gene determines pigment production.
- M is dominant over m.
- With D present, M/m is expressed.
- With dd, M/m is not expressed.
- DDMM, DdMM, DDMm, DdMm result in black fur.
- DDmm, Ddmm lead to brown fur.
- ddMM, ddMm yield light gray fur.
Cross: between two dihybrids
Parental: DdMm x DdMm
Phenotype: Black-furred x Black-furred
Gametes: DM, Dm, dM, dm; DM, Dm, dM, dm
Punnet Square: DM Dm dM dm
DM DDMM DDMm DdMM DdMm
Dm DDMm DDmm DdMm Ddmm
dM DdMM DdMm ddMM ddMm
dm DdMm Ddmm ddMm ddmm
F1: 9/16 Black-furred individuals, D-M- (1/16 DDMM + 2/16 DDMm + 2/16 DdMM + 4/16 DdMm)
3/16 Brown-furred individuals, D-mm (1/16 DDmm + 2/16 Ddmm)
4/16 Gray-furred individuals, dd-- (1/16 ddMM + 1/16 ddmm + 2/16 ddMm)
