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andreev551 [17]
1 year ago
9

The outer cortex of the brain contains the cell bodies of cerebral neurons and known as gray matter. true false

Biology
1 answer:
LUCKY_DIMON [66]1 year ago
4 0

Answer:

true

hope this helps! <3

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All vertebrate embryos have _____ at some point during embryonic development, indicating a common evolutionary ancestor
aivan3 [116]

All chordates chare four structures. One of the is the tail. All vertebrate embryos have _<u>a tail</u>__ at some point during embryonic development, indicating a common evolutionary ancestor.

<h3>What is the relationship between chordates?</h3>

The evolutionary relationship between species is reflected in the similarities or differences in the patterns of embryonic development.

All chordates belong to the Chordata phylum, and share four main characteristics,

  1. Notochord, which is a precursor of the dorsal spine.
  2. Nerv cord, dorsally located and parallel to the notochord.
  3. Pharyngeal clefts
  4. Tail

All chordates express these structures at some point in their lives, especially in the early stages of embryogenesis. Many of them can be lost with animal development and become vestigial structures.

The tail is a vestigial structure in many vertebrates.

Vestigial structures are those body parts, genetically determined, that have been retained during the evolution of the taxonomic group but have lost or reduced their original function.

Such vestigial structures were plenty functional in the ancestors of new species, but now are typically degenerate, stunted, or rudimentary, and tend to be much more variable than homologous non-vestigial parts

All vertebrates develop a tail at some point in their embryonic life, even humans. However, this structure lost its original function in several species, so after a period of embryogenesis, this tail disappears, and its forming vertebras get fussed with each other composing the coccyx.

In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, for instance, the coccyx has lost this function but is still an area of muscle insertion.

The correct option is Tail.

All vertebrate embryos have _<u>a </u><u>tail</u><u>_</u> at some point during embryonic development, indicating a common evolutionary ancestor.

You can learn more about chordates at

brainly.com/question/12406059

#SPJ1

3 0
2 years ago
Why does the population size of a species rise and fall around the carrying capacity, rather than immediately stop growing and f
Alisiya [41]
Answer:


Competition for resources like food and space cause the growth rate to stop increasing, so the population levels off. ... The carrying capacity (K) is the maximum population size that can be supported in a particular area without destroying the habitat. Limiting factors determine the carrying capacity of a population. Population Growth Limits | CK-12 Foundation
3 0
3 years ago
When scientists report their results from their scientific investigations, what should scientists include and NOT include in the
Elena L [17]
<h3><u>Answer:</u></h3>

<u>When scientists report their results from their scientific investigations, scientists should include the content that answers the following questions</u>

  • Was our hypothesis correct?
  • Do we need to run experiment again,changing a variable?
  • If the results did not support the hypothesis then add information about reason why it happened.

<u>Scientists should not include the following </u>

  • It should not oppose your results.
  • Conclusions should not be in a negative tone.
6 0
3 years ago
Please help me!!!!?????? 15 points??
NemiM [27]
I think it is erosion (2) because erosion removes soil, rock, and dissolved material.
7 0
2 years ago
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Which is true regarding the mediated transport of a substance across a plasma membrane? it depends upon the binding of that subs
Maurinko [17]
Both "depends upon the binding of that substance to a specific site on the membrane protein" and "depends upon movement of proteins from one side of the membrane to the other" are correct.

The saturation effect prevents statement 2 from being true.
3 0
3 years ago
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