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
Alona [7]
4 years ago
12

PLEASE HELP ASAP

Biology
1 answer:
snow_lady [41]4 years ago
4 0

Answer:

A) Devonian

Explanation:

Fourth division of the Paleozoic era, the Devonian (or Devonian) comprises the period between 416 and 354 million years ago, succeeding the Silurian and preceding the Carboniferous.

Although in this period the terrestrial environment is increasingly conducive to life, the Devonian is still known as the "age of fish". During this period, the first vertebrae, sharks, lobed-fin fish, ray-finned fish and placodermos (group of fish with armor that took the top of the food chain) emerged. Some freshwater fish developed lungs, which gave them the ability to breathe out of the water - soon the first amphibians would originate from fish with lobed fins. On the continents, however, animal life was still marked by the presence of arthropods, such as arachnids and insects.

You might be interested in
Charles Darwins theory of natural selection states..
scZoUnD [109]

Answer:

b

Explanation:

6 0
4 years ago
Read 2 more answers
Which of the following is a question that explains a lot of observations is…
cupoosta [38]
When you go bird watching
8 0
3 years ago
Read 2 more answers
The irregularly shaped area between the lungs tha contain the trachea is called the
LenaWriter [7]
Irregularly shaped area betweenthe two lungs, contains thetrachea. Diaphragm. muscular sheet that contracts to enlarge the thoracic cavity and draw air in. Pleura. Each lung is surrounded by a double layer serous membraneknown as pleura.
4 0
3 years ago
Which of these engulf bacteria and break them down?
Kamila [148]

Answer:

B. phagocytes

Explanation:

Phagocytosis is a process wherein a cell binds to the item it wants to engulf on the cell surface and draws the item inward while engulfing around it. The process of phagocytosis often happens when the cell is trying to destroy something, like a virus or an infected cell, and is often used by immune system cells.

7 0
3 years ago
Read 2 more answers
Organisms that live in the rainforest have developed unique adaptations that aid in their survival. Which adaptation would most
lidiya [134]
The right answer for the question that is being asked and shown above is that: "B. birds have beaks adapted to break open hard shells." The adaptation would most likely be found in organisms living in the rainforest is that <span>birds have beaks adapted to break open hard shells</span>
4 0
4 years ago
Read 2 more answers
Other questions:
  • Given that tina jones has 20/40 vision in her right eye, what safety goals would you set for tina's decreased vision? which evid
    11·1 answer
  • A scientist conducted one trial of an experiment and got unexpected results. How can the scientist increase confidence in the re
    9·2 answers
  • This is a small body formed during accretion and composed mostly of of silicates and metals internally and ice on the external s
    10·1 answer
  • TOO MANY POINTS list of the parts of cell theory​
    5·2 answers
  • Surfactant:
    5·1 answer
  • How many C atoms in CO2 6
    7·1 answer
  • A potential cause of male infertility is a blockage of the vas deferens. The blockage could be due to the build up of scar tissu
    10·1 answer
  • "the force with which a solvent moves across a semipermeable membrane from a higher to a lower concentration"
    15·1 answer
  • A conclusion may be stated
    12·1 answer
  • What are the difference between root and rizoid
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!