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
stich3 [128]
3 years ago
7

First one who answers this will be marked brainliest, thanked, and 5 stars

Biology
2 answers:
Harrizon [31]3 years ago
8 0

the supercontinent is called pangaea that existed millions ago

dangina [55]3 years ago
6 0

Answer:

Option (2)

Explanation:

Alfred Wegener was the person who first introduced the concept of continental drift. It is this concept that helped in determining the past events that have occurred in the geological time scale.

With various shreds of evidence, Alfred Wegener concluded that the earth was initially comprised of a large supercontinent that got split up due to the drifting of the continents, which was later mentioned by the plate tectonic theory.

The Pangaea was first formed about 350 million years back and got separated into Laurasia and Gondwanaland about 180 million years back.

Thus, the correct answer is option (2).

You might be interested in
What constitutes the majority of the debris found in the “garbage patch" located in the North Pacific Ocean?
mezya [45]

Answer:

Old Fishing Gear

Explanation:

The patch, in fact, is made up mostly of abandoned fishing gear. According to the study, fishing nets alone make up 46 percent of the 79,000 tons of garbage.

3 0
3 years ago
1.
vredina [299]

Answer:

A.

Explanation:

7 0
3 years ago
A person's blood type is determined by the:_______
matrenka [14]

Answer:

) Presence of specific glycoproteins on the cell membrane

Explanation:

When specif glycoproteins(antigens)  or antibody are present on a cell membrane of Red blood cell,they can  be used to identify the blood type.Antigens are substances capable of triggering an immune response in a cells.

In addition,they function in transport of molecules across the RBC. They help in the maintenance of the RBC,and aiding the arrest of cells capable of causing diseases to the body.

Therefore,they are good determinants of blood types,based on this two types of antigens present in a  blood type.

These two antigens  used for classification of blood types are the 1-the ABO antigens 2,the Rhesus antigens.

Essentially,when a WBC produces an antibody ,which is a molecule that defends the body,If this is not compatible,the antibody will recognize it as a foreign body and attack it.Thus such blood types are not compatible. Thus the antibody-antigen reaction are good for knowing and classify blood types.

Antigen can also be glycoprotein,carbohydrate or glycolipids.

Generally blood types are inherited from both parents.Therefore the antigen present on the RBC are combination of the alleles from each parent.

4 0
3 years ago
Which best helps scientists determine the age of fossils
natima [27]
Relative dating best helps determine fossil age. It's where layers of sedimentary rock and fossils pile up on top of each other; the oldest fossils being in the bottom layer and the youngest in the top.
6 0
4 years ago
Using the electron configuration flow diagram below, what is the correct electron configuration for nitrogen (atomic number 7)?
cluponka [151]

Answer:

I do not see the electron configuration flow diagram, but the full electron configuration for nitrogen is  1s^22s^22p^3

8 0
2 years ago
Other questions:
  • Organic molecules that catalyze reactions quickly at relatively low body temperatures are called:
    10·1 answer
  • Which statement best describes a climax community? Hurry PLZ ITs A TEST!!!
    5·2 answers
  • Identify What Kind Of Negative Effects Might A Hurricane Have On A Coastal Ecosystem, Why Do You Think This?
    10·1 answer
  • Eukaryotic flagella differ from prokaryotic flagella because only eukaryotic flagella
    13·1 answer
  • From where plants gets carbon dioxide?
    11·1 answer
  • What determines the order of elements in today's periodic table??
    9·1 answer
  • Which is not basidiomycota?<br> a)cup fungi b)jelly fungi <br> c)shelf fungi d)smut fungi
    6·1 answer
  • Teoria criacionista?​
    7·1 answer
  • William Shakespeare's writings are thought to be a perfect example of which of the following? A. The Reformation B. The Enlighte
    6·2 answers
  • Can someone please help?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!