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svlad2 [7]
2 years ago
8

How do the ratios with oxygen change down a group?

Biology
1 answer:
aniked [119]2 years ago
8 0

Answer:

Its always 2 to 1

Explanation:

big brain

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5. The F2 generation of a cross between a parental tall and a parental short pea plant is 298 tall plants and 102 short plants.
Vadim26 [7]

Answer:

The answer is XX.

Explanation:

Let us say that X is the dominant gene and x is the recessive gene for the height of the pea plants. Pea plants need to be homozygous or heterozygous  to have the short phenotype which means it needs to have the genotype xx or Xx.

The F2 offspring has a ratio of 74,5% tall plants and 25,5% short plants. For these results, the stem height pea plant needs to be homozygous which is an XX genotype for the tall pea plant.

I hope this answer helps.

7 0
3 years ago
- Monarch butterflies migrate from the U.S. and
kiruha [24]

Answer:4

Explanation:

4 0
2 years ago
Based on the phylogenetic tree below, which groups of plants evolved most recently?
xeze [42]

Answer: The correct answer is- gymnosperms and angiosperms.

Phylogenetic tree is a diagrammatic representation that depicts the evolutionary relationship among different group of species. In other words, it is used to interpret the relatedness among different species and how they have descended from a common ancestor.

The tips in the phylogenetic tree represents the taxon ( or particular group of species) that are descended.

In the given tree, gymnosperms and angiosperms have evolved most recently because they correspond to the most recent branches having the immediate common ancestor at the topmost level as compared to the immediate common ancestor of other taxon.

Thus, gymnosperms and angiosperms is the right answer.

3 0
3 years ago
I WILL MARK U BRAINLIEST IF YOU ANSWER THIS QUESTION!
padilas [110]

Answer:

The circulatory system transports blood throughout the body through the veins. The circulatory system works with the respiratory system because it transports oxygen through the body as well. It works with the digestive system because it transports waste so it can be disposed.

Explanation:

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6 0
2 years ago
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Which of the following is not a regulation for mining?
Vesna [10]

Answer:

Pillars in an abandoned mine

Explanation:

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