1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DiKsa [7]
3 years ago
14

Describe origin and evolution of early vertebrates​

Biology
1 answer:
raketka [301]3 years ago
8 0
Vertebrates were re- stricted to the oceans, but about 365 million years ago, the evolution of limbs in one lineage of vertebrates set the stage for these vertebrates to colonize land. There they diversified into amphibians, reptiles (including birds), and mammals.
You might be interested in
A spaceship is traveling to the moon. Both the moon and the earth pull on the spaceship during the entire trip. At a point much
Artist 52 [7]
The reason that the ship gets pulled on the whole time is because Both planets well Planet and moon have a gravitaional pull, without them they would collide with each other. Its common sense that if you closer to the moon the moon has  a greater affect on your with its gravity, thats why you must be closer to the moon in order for the moon to pull you closer in! :) Hope this helps!
3 0
3 years ago
Describe three observations an astronaut might make while viewing Russia at night.(Site 1)
olga55 [171]
<span>One observation would be the physical size of Russia compared to other countries, despite a lack of visible borders from space. In addition, part of Russia's outline would likely be obscured by the various clouds and objects in the stratosphere; this would allow the astronaut to view potential cloud and weather patterns on earth. Also, an astronaut could see outlines of Russia's geography such as mountain ranges.</span>
4 0
3 years ago
Read 2 more answers
Sort the sentences based on whether they describe the properties of a heterogeneous or a homogeneous mixture.
mr Goodwill [35]
<span>Its components are visible. --heterogenous

It may be mistaken for a pure substance.  --homogenous

It can be separated using distillation.  --homogenous

Concrete is an example of this kind of mixture.  --heterogenous

Hope this helps!</span>
3 0
4 years ago
Read 2 more answers
Help<br> me<br> please<br> it just those ones
jeka57 [31]

Explanation:

Solids:

Particles stay close together with a pattern

Particles do not flow freely

Definite shape and definite volume

Liquids:

Particles are closer together (compared to gas) with somewhat of a pattern

Particles flow freely

Somewhat strong attractive forces that hold an indefinite shape

Gas:

Particles spread out without a pattern

Particles flow everywhere (they are like kids on a sugar rush)

Weak attractive forces that hold no shape or volume

Indefinite shape and indefinite volume

Not entirely sure what compressibility is so i skipped that one for all of them

5 0
3 years ago
WHOEVER ANSWERS FIRST GET A BRAINLY!!!!Provide a reason why no 2 communities are ever the same. Support your answer with an exam
Advocard [28]

Answer:

No two communities are the same because each one has something specific to them whether it is house structure, rules of the community, how big the community is, and the people that live there.

Explanation:

A great example of this is Weston, FL and Pembroke Pines, FL. In Weston you will find higher class people living there such as celebrities and athletes. The best community to use as a comparison is Botanica Weston. There are mansions in that neighborhood along with many sport icons living there. In Pembroke Pines, it is more of a family based city. In the community Pembroke Falls, you will see more family type houses and a large clubhouse with a pool, game room, and event room to host parties in. Each community has a different identity and no two communities are the same.

4 0
3 years ago
Other questions:
  • Which of the following can be determined through the examination of fossils?
    9·1 answer
  • A group of scientists proposes an idea that a chemical compound will enable bean plants to grow faster. They grow one group of b
    15·1 answer
  • To inhale during tidal breathing, we use the _____ in addition to the diaphragm. abdominal muscles
    11·1 answer
  • In many states, the legal limit for all bacteria present in pasteurized milk is not to exceed 20,000 CFU/mL. You have been away
    9·1 answer
  • The Various kinases can be activated by breaks in DNA.
    8·1 answer
  • An example of what is geese flying south for the
    14·1 answer
  • Why are there more marsupials in Australia than North America ?
    11·1 answer
  • A tight rope walker who does not want to change his position will want the forces acting on him to be what?
    15·2 answers
  • 14. The elements in group_
    11·1 answer
  • How has the study of genetics shaped our understanding of heredity? Include Gregor Mendel’s studies to support your answer.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!