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
viktelen [127]
3 years ago
13

______ years ago, nearly 75-80% of all species of life on Earth were wiped out in an incredibly short period of time.

Biology
2 answers:
Korvikt [17]3 years ago
7 0

Answer:

Sixty-five million years ago

Explanation:

The Cretaceous Mass Extinction occurred nearly sixty-five million years ago. It is supposed to be caused by asteroids. The Cretaceous mass extinction resulted in the extinction of many marine organisms as well as all the dinosaurs that flourished during the Jurassic period. In addition to these animal species, the existing plant species, as well as amniotes, also disappeared in a relatively short period of time.

ra1l [238]3 years ago
3 0
Millions i think

::::::::::::::::::::::::::
You might be interested in
How does variation of beak type affect a birds ability to survive?
Blababa [14]
The variation in beak type enables the different individuals in a population to feed on different food sources.

The shape of the beak is key to determining the primary food source of the bird. Certain birds species have specialized beaks, but within populations of those species, there is a variation in beak shape.
This gives the population the ability to respond to changes in the environment and availability of different food sources.
For example, if because of a dry period there is a shortage of fruit, some individuals in the population have the beaks that enable them to feed on other things, survive and leave offspring.
6 0
3 years ago
1. What are the 5 requirements for a mineral to be a mineral?<br><br> 2. What are rocks made of?
svlad2 [7]

Answer:

simple answer for question 2

Explanation:

rocks are composed of grains from minerals,

8 0
3 years ago
what happens to ocean water as it moves from antarctica to the equator? it transfers thermal energy to deeper layers of the ocea
muminat
Ocean waters has its own level of density which depends of the climate, temperature and most of all the location where it came from. The more the ocean water absorbs heat the more its density as a result it rises above from cold to hot. So the the water from the Antarctica usually is less dense and then become more dense when it goes to the equator which is more hot. 
5 0
3 years ago
Read 2 more answers
Unlike DNA, RNA A. contains nitrogenous bases. B. pairs uracil with adenosine instead of thymine. C. has deoxyribose as the suga
labwork [276]

pairs uracil with adenosine

8 0
4 years ago
URGENT, HELP!!<br><br> I’m not sure
Gennadij [26K]

Answer:

ur hair is ugly get it shaved off

3 0
3 years ago
Other questions:
  • Independent assortment of chromosomes is a result of24)A)the random nature of the fertilization of ova by sperm.B)the random dis
    14·1 answer
  • If a pea plant has a recessive allele for yellow pea , it will
    7·2 answers
  • A group of antelope leaving the herd in search of better grassland is an example of
    12·1 answer
  • Which is one purpose of cell division?
    15·2 answers
  • HIV kills or damages the body's ________.. A. Liver cells . B. Immune system cells . C. Prostate cells . D. All of the above
    15·1 answer
  • Which parts of Earth belong to the geosphere? Check all that apply. air Earth’s interior landforms minerals water
    11·2 answers
  • Does anyone know a Patrick Hearn that lives in Bergman Arkansas? Please, if you do let me know, and let him know im looking for
    11·2 answers
  • Please help me i’ll give brainlist
    5·2 answers
  • Cervical vertebrae can be uniquely identified by the presence of:.
    15·1 answer
  • sentence supports the statement that complex, multicellular organisms are made up of specialized cells that each perform differe
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!