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2 years ago

Dogs have a reduced nonfunctional digit on their paws known as a dewclaw. What is this an example of?

Biology

2 answers:

asambeis [7]2 years ago

4 0

This is an example of vestigial structure.

Vestigial structures are structures (cells, tissues and organs) found in an organism that has lost most or all of its primitive function through evolution. The vestigial structure has performed vital functions in the organism in the past but as there are changes in species as a result of natural selection, the structure became less important until it no longer functions. A reduced nonfunctional digit on the paws of dogs known as a dewclaw is an example of vestigial structure.

Lostsunrise [7]2 years ago

4 0

The correct answer is Vestigial structure, and this is why:
a vestigial structure is a structure that has lost most of its ancestral function. So the reduced nonfunctional digit (dewclaw) would be considered a vestigial structure.

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Consider a field where many plants are specifically pollinated by bees. If there was a sudden increase in the population of a be

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Answer:

bees will start to avoid this area because of predation

Explanation:

the bees have preditors

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2 years ago

Determine the median value for foot width for males and for females. Describe in complete sentences the method you used to deter

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Answer:

This question is incomplete because of the absence of the data referred to in the question

Explanation:

This question is incomplete but the data referred to in the question is attached below

In order to determine the median value of any set of data, the data is first of all rearranged chronologically (ascending) and then the middle value is picked if the number of data is odd but if the number of data is even, the two middle values are added together and then divided by two to get the median.

From the data provided, the values (which are 10 in number) can be arranged as shown below (with the median values in bold)

Females: 5, 7, 7, 7.5, 7.5, 7.8, 7.8, 8, 8, 17

Males: 4.5, 7.5, 9, 9, 9.2, 9.3, 10, 10, 10.5, 13

Since the number of data is even, the two middle numbers (in bold) shall be added together and then divided to get the median as shown below

The median value for the females foot width is = 7.5 + 7.8/2 = 7.65 cm

The median value for the male foot width is = 9.2 + 9.3/2 = 9.25 cm

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2 years ago

A gardener is concerned that her greenhouse is getting too hot from too much light, and seeks to shade her plants with colored t

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2 years ago

Step 8: Simulate an environment with equal amounts of insects and seeds, but no fruit. Which flock will be able to eat the most?

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The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much.

The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit.

Explanation:

Let us take the example of Finches. Finches have many different species with different variations adaptable to conditions favorable as per availability of the type of food.

Lets say -

Species X and Y is provided with insects, seeds and fruit.

Species X - Omnivorous

Species Y - Herbivorous

The species X will be able to eat the most as it is an Omnivore.

The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much.

Species Y will be able to eat the least as it is an herbivore.

The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit.

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2 years ago

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Describe at least two biological systems. Explain how the systems are independent from an interconnected with each other.

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The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are the lungs, which carry out this exchange of gases as we breathe. The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.

The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.

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2 years ago