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Lina20 [59]
3 years ago
7

An ecologist observes similarities between a species of bear in North America and a species of bear in Asia. Which is the most l

ikely reason that these two species have similar physical characteristics?
1. Bear species have same degree of similarity no matter where found.
2. The two species are part of same community.
3. Migrating members of the two species breed with one another.
4. The species have adaptions that allow them to live in the same type of biome.
Biology
1 answer:
frozen [14]3 years ago
4 0
<span>The reason the two bears showed similarities is because the species have adaptations that allow them to live in the same type of biome. Biomes are large ecological areas on the earth surface which are made up of different plants, animals and other abiotic and biotic factors. Animals of the same species usually have adaptations that enable them to live in the same type of environment.</span>
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The _____ force keeps molecules in a fluid together. (I'm pretty sure the options may be gravitational, weak, electromagnetic, a
Mnenie [13.5K]

Answer:

cohesive force

Explanation:

The first three forces are also collectively called van Der Waals forces. All of the inter molecular forces that hold a liquid together.

7 0
3 years ago
If there are 8 chromosomes in the parent cell, after Mitosis , how many chromosomes will be in the 2 daughter cells created?
natulia [17]

Answer:

Mitosis is the division of somatic cells in which the genetic content or number of chromosomes remain intact in daughter cells.

So the correct option is ' Eighteen'.

Explanation:

8 0
2 years ago
What did Darwin conclude about the finches on the Galapagos Islands that later supported his theory of evolution? Check all that
Ahat [919]

Answer:

The finches on Galapagos Islands had different beak

The beaks of the finches changed over time

The Galapagos finches had a common ancestor

Explanation: Darwin's Finches are a good example of natural selection and adaptive radiation of evolution. The different finches in Galapagos Island have emerged from a common  black, seed eating, short beak finches. This is called adaptive radiation, where different species arose from a single ancestor.

Due to changes in the natural environment, food resources, some finches have a long beak. This long beaks help them to eat insects. As a result, the competition will be less and nature selects them to survive in the new environment. This is a natural selection of evolution.

3 0
2 years ago
Read 2 more answers
Describe what happens to the body when cell division becomes uncontrolled (or abnormal)
astra-53 [7]
Cancer is the typical result of cell division
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3 years ago
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In humans, blue eyes are caused by a recessive allele ("b") that dilutes pigment production. BB and Bb individuals have brown ey
saveliy_v [14]

Answer:

Probability that the son will be:

color-blind = 1/2

blue eyed = 1/8

blue eyed and color-blind = 1/16

Explanation:

Mother : BbXcX

Father : BbXY

Colorblindness is X linked recessive trait hence will be caused when the son has XcY genotype.

XcX   X    XY :

     Xc    X

X  XcX  XX

Y   XcY  XY

Half of the sons will have normal vision and other half will be colorblind hence, there is 1/2 probability that the son will be colorblind.

Eye color is autosomal trait and blue color will be produced when the child has bb genotype.

Bb     X    Bb  :

   B    b

B  BB  Bb

b  Bb   bb

1/4 of the children will have blue eyes. Since half of the children are expected to be males, 1/4 * 1/2 = 1/8 sons are expected to have blue eyes.

Probability of a son being blue eyed and color blind will be :

1/8 * 1/2 = 1/16

3 0
2 years ago
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