Asbestos was once thought to be very useful, but now it is linked to lung cancer so the family was evacuated.
Asbestos is not harmful, but the family was evacuated so that the asbestos could be recycled for another building.
Asbestos was thought to be useful and is no longer used due to increasing costs to manufacture it.
Answer:
B on EDGE
Explanation:
just took the test and got in right:)
Which of these would best fit in the empty oval?
A) magma
B) sediments
C) sedimentary rocks
D) metamorphic rocks
Answer:
magma
Explanation:
Answer:
Magma
Explanation:
Answer:
Eels are just elongated fish. Their ancestors looked like tarpon fish. Their fins were a disadvantage in tight spaces, streamlined creatures literally filled a niche. They are more related to the salmon than the pythons.
There is fossil evidence to suggest that pythons and all the other snakes may have evolved from burrowing lizards, such as the varanids. Which are more related to the geckos than to fish.
Explanation:
The confusion can be made because eeil genus name-Anguilla, comes from anguis, which on Latin means serpent.
Pythons' vestigial leg structures and snakes' similar DNA sequences with geckos both point to a common ancestor and evolution over time. These observations support the theory of evolution, demonstrating that while some traits may be lost over time, like legs in snakes, others are retained.
Vestigial structures and DNA sequences are two types of evidence that evolutionists use to support the theory of evolution. In this case, pythons have been observed to have vestigial leg bones which implies that their ancestors might have had functional legs. On the other hand, the fact that snakes have more DNA sequences in common with four-legged geckos than with legless eels could also be interpreted as evidence of a common ancestor.
Snakes and geckos, despite their very different appearances, both belong to the clade Squamata, which also includes lizards. Their DNA sequences suggest that these creatures have shared ancestry, supporting the evolutionary theory. Similarly, the vestigial structures in pythons further back up this view. Vestigial structures are remnants from an organism's ancestry. The leg bones in pythons could well be residual parts left over from their legged ancestors, as snakes are believed to have descended from lizards.
In a nutshell, both these observations tell us the same story: that current species have evolved from common ancestors in the past. Over time, some traits (like legs in the case of snakes) might have become useless and got eliminated through natural selection, while others were retained. The end result is the rich biodiversity we see around us today.
#SPJ12
indicate a common ancestor exists between two organisms
are features which organisms still have but no longer use
develop when a mutation occurs in the DNA of an organism
Answer is result from evolution in a similar environment
The analogous structures are the various structures in different species having the similar in function because face similar environmental pressure, but have different in their origin. These structures evolved separately. Thus, they do not share common ancestor. For example are wings of birds and wings of insects, fins of fish and flippers of whales. Analogous structure supports convergent evolution.