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vlabodo [156]
3 years ago
10

Which is NOT a shared characteristic of all chordates?

Biology
2 answers:
madreJ [45]3 years ago
8 0
<span>A. A ventral, solid nerve cord.
</span>some have it solid but most of them have a Hollow one.
adoni [48]3 years ago
4 0

Answer:

thw answer is A

Explanation:

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2 years ago
The Earth’s movement through ________________ affects life on Earth.<br> this is fill in the blank
Nana76 [90]

Answer:

The Earth's movement through space affects life on Earth

Explanation:

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2 years ago
Write any two differences between cell and tissue. need help ASAP;( ​
anyanavicka [17]

Answer:

Cells and tissues are both structurally introduced in all organism and both have equal importance. There are no tissues without the cells and cell make-up the different types of tissues in all multicellular organisms. A cell is mainly found in every living organism.

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2 years ago
In the U.S. the fossul fuel that is present in the largest amount is
Andre45 [30]
In the U.S. the largest amount of fossil fuel that is present is coal and oil.
4 0
3 years ago
The fish Astyanax mexicanus has populations in surface lakes and in caves. Cave populations lose their eyes through degeneration
FinnZ [79.3K]

Answer:

C: allopatric speciation.

Explanation:

Allopatric speciation occurs because a given group has been separated from a parent group, usually because of geographic separation as time goes by. Gene flow is interupted when a population is divideed into geographically isolated subpopulations. It is also referred as geographic speciation.

Extrisic factors-as great distance or a physicl barier prevents two or moe groups from mating.

Various geographical changes can arise such as montains, islands, bodies of water or glaciers.

AS in the above scenario, This is an example of allopatric speciation.

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3 years ago
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