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Jobisdone [24]
4 years ago
13

Why do scientists consider pikaia to be an early chordate and not a worm​

Biology
2 answers:
GalinKa [24]4 years ago
3 0

Answer:

Notochord (flexible supporting rod structure only found in chordates)

Explanation:

Mark Me Brainliest Pls

trapecia [35]4 years ago
3 0

Notochord (flexible supporting rod structure only found in chordates.

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To which of the following is carbon bonded to create a molecule
Anika [276]

Answer:

D. A nucleus

Carbon contains four electrons in its outer shell. Therefore, it can form four covalent bonds with other atoms or molecules. The simplest organic carbon molecule is methane (CH4), in which four hydrogen atoms bind to a carbon atom

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3 years ago
The Sikhote- Alin Mountains, and the Siberian tigers living on them, are separated from other mountain regions in which the tige
MatroZZZ [7]
I believe the answer to this question is (D) habitat fragment. Habitat fragmentation is the process in which the loss of habitat causes a division in a larger habitat, resulting in smaller areas that are isolated from each other. In this the tigers are separated from other inhabitable nearby areas.
6 0
3 years ago
Which process causes Earth's surface to warm?
-Dominant- [34]

Answer:the radiation of the Sun’s electromagnetic waves

Explanation:

5 0
3 years ago
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In a chemical reaction, atoms are rearranged to form new molecules. However, atoms are neither created nor destroyed.
lozanna [386]

Answer:

D.

Explanation:

It will stay the same no matter how the atoms are rearranged

7 0
3 years ago
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A volcanic eruption releasing rock, ash, and dust particles into the air is an example of which interaction?
geniusboy [140]

It is an example of interaction between the lithosphere and atmosphere.

Explanation:

Earth has several spheres, all of them constantly interact with each other. This means that they create one interconnected system, and that they all influence each other and are dependent on each other. The spheres that can be found on Earth are:

  • Lithosphere
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  • Atmosphere
  • Biosphere
  • Cryosphere

In this case, we have interaction between the lithosphere and the atmosphere. The volcanoes form in the lithosphere and they are part of the lithosphere. When they have eruptions, the material interacts with several spheres, and specifically when it ends up in the air, it interacts with the atmosphere, as the air is what makes the atmosphere. The rocks, ash, and dust from the volcanic eruption are able to change the properties of parts of the atmosphere, and that can be locally, regionally, or even globally, with time frames varying from few days to hundreds of years.

Learn more about the lithosphere brainly.com/question/12668681

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8 0
3 years ago
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