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Bas_tet [7]
3 years ago
10

Frogs, birds, rabbits, and lizards all have different forelimbs, which makes sense when you consider their different lifestyles.

Interestingly, all of their forelimbs share the same set of bones: the ulna, the radius, and the humerus. These same bones are also seen in fossils of the extinct animal Eusthenopteron, which demonstrates common ancestry among these four groups of animals. Hence, these forelimbs are an example of:
Biology
1 answer:
Nataliya [291]3 years ago
5 0

Answer:

Homologous organs

Explanation:

The forelims of frogs, birds, rabbits and lizards are adapted to perform different functions as per the lifestyle of these animals. But forelimbs in given animals are made of same type and pentadactyl pattern of bones. The forelimbs of frogs, birds, rabbits and lizards are thus, homologous organs. Their origin is the same but perform diferent functions. This is an evidence of divergent evolution and these animals share common ancestory.

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List at least two possible reasons for the differences you see between the pinch strength of the first two fingers and the secon
andriy [413]

Answer:

The first two fingers may be stronger due to the fact that they are used the most often and could build up more strength and dexterity. Another reason the first two fingers may be stronger could be due to the fact that the ulnar muscle that controls digits 4 and 5 is smaller than the radial muscle.

Explanation:

Pinch strength is a widely used measurement of hand function. A direct relationship between pinch strength and function has been demonstrated and illustrates the importance of hand strength in clinical practice.There is a difference in grip strength in the dominant and non-dominant hands.Dominant hand  is significantly stronger. According to the pinch strength data, he index finger and the thumb are the strongest, the middle finger and the thumb are the second strongest, the ring finger and the thumb are the third strongest, and the little finger and the thumb are last. The difference is the largest between the middle finger and the thumb and the ring finger and the thumb.

The first two fingers may be stronger due to the fact that they are used the most often and could build up more strength and dexterity. Another reason the first two fingers may be stronger could be due to the fact that the ulnar muscle that controls digits 4 and 5 is smaller than the radial muscle.

Difference in the pinch strength may be due to one possible reason that the radial muscle is larger than the ulnar muscle which controls digits 4 and 5. Another reason could be that you generally use the thumb, index, and middle fingers more than the ring and little finger, therefore the first three fingers have more strength and muscle memory.

8 0
3 years ago
What do scientists think the effect will be of having more greenhouse gases in our atmosphere?
Serjik [45]

Answer:

a

Explanation:

greenhouse gases is what caused global warming and climate change

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jekas [21]

Answer:

C, there is genetic variation within the population

Explanation:

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2 years ago
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Exchange lists can be used by diabetics to give freedom of choice in what they can have to eat or drink. It allows diabetics to select types and amounts of foods while maintaining a healthy calorie level.30 grams or 2 carbs, because two slices of bread 2 starch servings.

Carbohydrate counting can help people control their carbohydrate intake, which helps control blood sugar. It allows flexibility in menu planning because no food is excluded, and only carbohydrates are counted.
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3 years ago
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