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faust18 [17]
3 years ago
7

In _______ a population isolated by a geographic barrier becomes a new species as it accumulates changes by natural selection or

genetic drift.
Biology
1 answer:
Mashcka [7]3 years ago
3 0

Answer:

The correct answer is allopatric speciation.

Explanation:

Allopatric speciation occurs when a geographical barrier comes between a species population living in the same area. This geographical barrier separates the population into two different geographical area which do not have the same condition.

So as both the separated population get different habitat environment to live so they evolve differently from each other. So natural selection and genetic drift works differently in both the population which brings genetic changes in the population and helps in creating a new species.

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Which will cause a decrease in gas pressure in a closed container?
ludmilkaskok [199]

Answer:

C

Explanation:

Reducing more volume will mean that the density of gas is higher and therefore it would be at higher pressure. Adding more gas would have the same effect.

Lowering the temperature would mean that the molecules would be moving slower and therefore decreasing pressure

7 0
3 years ago
A Pea plant that is homozygous for inflated pods are heterozygous for round seeds is crossed with a plant that is heterozygous f
Norma-Jean [14]
The answer is False!

P - dominant allele for inflated pods
p - recessive allele for inflated pods
PP - homozygote with inflated pods
Pp - heterozygote with inflated pods
pp - homozygote with inflated pods

S - dominant allele for round seeds
s - recessive allele for wrinkled seeds
SS - homozygote with round seeds
Ss - heterozygote with round seeds
ss - homozygote with wrinkled seeds

1. <span>A Pea plant that is homozygous for inflated pods are heterozygous for round seeds: PPSs
2. A</span><span> plant that is heterozygous for inflated pods and a homozygous for wrinkled seeds: Ppss

Let's look at their genotypes separately, and cross them that way:

Parents:              PP       x      Pp
Offspring:     PP      PP      Pp     Pp
All of the offspring will have the same phenotype (100% = 1). So, this trait does not affect phenotypic ratio

</span>Parents:              Ss       x      ss
Offspring:     Ss      Ss      ss     ss
Half of the offspring will have wrinkled seeds and half of them will have round seeds: 50% : 50% = 1 : 1

So, the phenotypic ratio is not  1 : 3
7 0
3 years ago
What is the difference between casual observers and scientific observers?
babunello [35]
There are different types of observers. Casual observers differ from scientific observer. Seeing and observing are two different things. Not that everybody seeing is actually observing the thing.
A casual observer just sits back and watch for something to happen while a scientific observer comes up with some hypothesis to work on it. 
8 0
3 years ago
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Svetlanka [38]

Answer:

yessssssjshsbzvsghsha

4 0
3 years ago
Which two organisms are herbivores
Mars2501 [29]

Answer:

Examples of large herbivores include cows, elk, and buffalo. These animals eat grass, tree bark, aquatic vegetation, and shrubby growth. Herbivores can also be medium-sized animals such as sheep and goats, which eat shrubby vegetation and grasses. Small herbivores include rabbits, chipmunks, squirrels, and mice.

Explanation:

6 0
2 years ago
Read 2 more answers
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