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zepelin [54]
3 years ago
14

Describe how the fossil record gives evidence of evidence.

Biology
1 answer:
Anna71 [15]3 years ago
6 0

Answer:

Aaaaaaaaaaaaaaaaaaaaaaa

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he 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands several million yea
Gala2k [10]

Answer:

The beak size will either increase or decrease, depending on the past evolution.

Explanation:

8 0
2 years ago
Carrying a jute bag for shopping <br> (a)Reduce (b) Reuse (c) Recycle
yan [13]
That's reduce. Your reusable bag decreased the amount of paper and/or plastic wasted.
8 0
3 years ago
3. A population of 820 insects lives in a 1.2-acre area. They gather nectar from a
katen-ka-za [31]

Answer:

The plants have the higher population density. This is because, when compared with that of the insects, the number of plant species per acre area is higher; 2800 compared to 683.3

Explanation:

The number of individual species per unit area of land is known as the population density. Population density describes how crowded or spaced out a given species is in a particular area. The higher the population density, the more crowded the species are and vice versa. The formula for calculating population density is given as:

Population density = Number of species/land area

Population density of the insects = 820/1.2 = 683.3 insects/acre

Population density of the plants = 560/0.2 = 2800 plants/acre

Therefore, the plants have the higher population density.

This is because, when compared with that of the insects, the number of plant species per acre area is higher.

3 0
2 years ago
In fruit flies, straight wings are dominant and curly wings are recessive. What will the generations look like? Assume that Mend
Anestetic [448]
Crossing two true breeding parents with opposite parents is the key:

Assume W is straight wing and w is curly.
Then you are crossing WW with ww
This will result in ALL Ww as offspring - so all straight offspring

If you then cross Ww x Ww you end up with a mix of 
WW (1), Ww (2) and ww (1) - so a mix of straight and curly

Answer: 
P generation has straight wings and curly wings
F1 has all straight wings
F2 has straight wings and curly wings
8 0
3 years ago
Why a genetic bottleneck can be an important evolutionary factor for a species
melisa1 [442]

Answer:

Genetic drift decreases genetic diversity within a population.

Explanation:

Genetic drift decreases genetic diversity within a population. It is a change in allele frequencies due entirely to random chance and is more likely to affect smaller populations than large ones. Population bottlenecks can lead to genetic drift.

6 0
2 years ago
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