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Ahat [919]
3 years ago
6

PLZ HELP me...im struggling

Biology
1 answer:
PIT_PIT [208]3 years ago
4 0
If D is dominant and d is recessive

1. Dd
2. DD
3. dd
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Each biological species is genetically isolated from other species. why do the species evolve independently?
Nookie1986 [14]
Species evolve independently possibly due to geographical isolations or behavioural isolations.

Geographical isolation includes the isolation of 2 groups of the same species. Since these 2 groups live in different locations, (e.g. a volcanic eruption resulting in a barrier between one side of an ocean and another side of the ocean), they will have different selection pressures in their different environments as well (e.g. one side of the ocean may have more sunlight and thus more underwater plantations than the other side of the ocean). Natural selection will eliminate those with disadvantageous characteristics (e.g. Fishes that only eat plants and nothing else on the side of the ocean with little plantations) with unfavourable alleles, and select for those with advantageous characteristics (e.g. Fishes are able to eat plants and other organic substances as well on the side of the ocean with little plantations) with favourable alleles.

Since the 2 groups have different selection pressures, natural selection will occur in different ways, selecting for and against different types of fishes with different types of alleles. Also, because of the barrier, they are not able to mate with each other, and there are no mixing of genes from one side of the ocean and the other side. They are genetically isolated. As genetic drift occurs over time, their gene pools become different from each other. Thus, they evolve independently.

Hope this helps! :)
7 0
3 years ago
The difference between a habitat and a niche is that a niche is
alexgriva [62]

Answer:

A. The specific functional role of an organism

Explanation:

A habitat is the general place where an organism lives and a niche is the range of physical and biological conditions in which a species lives and the way the species obtain what it needs to survive and reproduce.

4 0
3 years ago
Willie is on the bus with his classmates. who is most likely to be diagnosed with psychopathology based on the criteria that his
Paha777 [63]
Willie on the bus with his classmates. Who is most likely to be diagnosed with psychopathology based on the criteria that his or her behavior impairs good daily functioning?

Elizabeth, who must walk up and down the bus steps 10 times before getting on

7 0
3 years ago
The basic assumption that the picture of the present can be projected into the future is the basis of a
lyudmila [28]

Answer:

Trend analysis

Explanation:

Trend analysis is a technique which is used during technical analysis in the prediction of the prices of future stocks based in the currently observed trends. The basic idea behind the trend analysis is the success or failure of a trade in future can be estimated by the conditions of the trade in past. Thus in this analysis the upward or downward growth trend of a business is used in prediction of future of business and in this way it is helpful for the investors to be sure that they should invest their money in the business or not.

4 0
3 years ago
Help plz asappppppppp
makkiz [27]

Answer:

A. Whales evolved from four-legged animals.

Explanation:

I'm 100% on this one, because on Plato we were learning about evolution, and one of the slides said that whale had evolved from four legged animals.

Hope this helps ya!!!

Got a screenshot for proof!

4 0
3 years ago
Read 2 more answers
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