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Elden [556K]
2 years ago
12

How many weeds are on the noxious weed list?

Biology
1 answer:
goblinko [34]2 years ago
5 0

Answer:

look up what they are then how many are around the world and then go from there

Explanation:

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Which layer of the integument has a small population of immune cells?
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The stratum basale

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In garden pea plants, purple flowers (P) are dominant to white flowers (p), and full pod shape (F) is dominant to constricted po
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Answer:

The phenotypes are as follows

Purple, full- 9

Purple, constricted- 3

White, full- 3

White, constricted- 1

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Explanation:

This is a dihybrid cross involving two distinct genes. One coding for flower color and the other for pod shape. The allele for purple color (P) is dominant over the allele for white color (p) while the allele for full pod (F) is dominant over the allele for constricted pod (f).

In a cross between two heterozygote parents i.e. PpFf × PpFf, each parent will produce the following gametes: PF, Pf, pF and pf. Using these gametes in a punnet square (see attached image) the following 16 offsprings will be produced in a phenotypic ratio: 9:3:3:1

Purple color, full pod- 9

Purple color, constricted pod- 3

White flower, full pod- 3

White flower, constricted pod- 1

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Losses of usable energy between successive trophic levels in an ecosystem are best accounted for by _________
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The 2nd law

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