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What is the tree called that giraffes eat from called?
The tree that giraffes eat from is commonly known as the acacia tree. Giraffes use their long necks to reach the leaves and twigs high up in the tree canopy, which are a major part of their diet.
What are examples of environmental changes adaptations?
Examples of environmental changes adaptations include changes in fur color to blend into snowy landscapes, development of long necks in giraffes to reach high leaves, and the ability of certain fish species to survive in oxygen-depleted waters by using alternate respiration methods.
What animal can't swim and why?
The animal that can't swim is the giraffe. Giraffes have long legs and a heavy body, which makes it difficult for them to stay afloat in water. Additionally, their long necks make it hard for them to keep their heads above water. This combination of factors makes it nearly impossible for giraffes to swim effectively.
The theory of use and disuse?
The theory of use and disuse of Jean-Baptiste Lamarck, advocated the idea that animals acquired characteristics after using certain physical traits constantly. For example, he believed that the reason why the necks of giraffes were long was because they stretched to reach leaves on high trees. By the same logic, the lack of a human tail could be explained by the fact that humans did not use it. This idea is not correct, however, it advanced evolutionary theory!
Who has the worlds longest neck?
The animal with the longest neck in the world is the giraffe. Their long necks help them to reach leaves high up in trees for food and also play a role in fighting other giraffes.
Darwin and Lamarck had different ideas about why all giraffes now have long necks why?
Lamarck would have said that the ancestors of modern-day giraffes had short necks but stretched their necks as they tried to reach leaves in trees; so, their descendants were born with longer necks. Darwin would have said that in a population of ancestral giraffes, some had slightly longer necks than others; the long-necked giraffes were better able to feed on tree leaves and as a result produced more offspring. Over time, the proportion of longnecked giraffes in the population increased.
Which theory sounds like an explanation that Lamarck might give?
Giraffes have long necks because their ancestors stretched their necks reaching for food, and this trait was passed on their offspring.
If Lamark and Darwin had debated why giraffes have such long necks how would their explanations differed?
Lamarck would have said that the ancestors of modern-day giraffes had short necks but stretched their necks as they tried to reach leaves in trees; so, their descendants were born with longer necks. Darwin would have said that in a population of ancestral giraffes, some had slightly longer necks than others; the long-necked giraffes were better able to feed on tree leaves and as a result produced more offspring. Over time, the proportion of longnecked giraffes in the population increased.
Did Lamarck believes that giraffes came to have long necks through stretching their necks?
Lamarck believed that acquired traits could be inheritable. So as each generation voluntarily extended their necks, their genetics changed, allowing them to have offspring with their necks already that length.On the other hand, Darwin would have said that the genes mutated on their own and that shorter giraffes would be unable to reach enough food and die. The rest would in turn live to pass on their beneficial genes for longer necks.
What are some examples of lamarck's theory?
One very famous example is that giraffes stretched their necks all their lives to reach leaves that are very high on trees, and when they produced offspring, they passed the long necks down to them.
How did lamrack propose that species change over time?
Lamarck proposed for inheritance of acquired traits. Example, giraffes stretched their neck to feed on shoots on tall trees. This lead to elongation of the necks, and they pass this traits to their offspring. This goes on and on, and eventually giraffes end up with long necks.
Can giraffes turn their necks?
Giraffes use their necks in the same way we use ours. They are just longer.
Who came up with the theory of giraffes?
Jean-Baptiste Lamarck (1744-1829) theorized that giraffes are an ideal model to prove evolution. He theorized giraffe necks grew longer as their ancestors constantly reached into treetops for food, which was out of reach of other animals.
Do giraffes have necks?
Yes, they do.
Why do giraffes evolved with long necks?
Giraffes evovled with long necks so they can reach the tree and eat the leaves.
Have giraffes always have long necks?
no
Where do giraffes have long hair?
on their necks
