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
marishachu [46]
4 years ago
9

The most massive extinction event in the history of Earth, in which 96 percent of all species became extinct over the course of

a few thousand years, occurred during the
a. Cretaceous.
b. Devonian.
c. Orodovician.
d. Permian.
e. Silurian.
Biology
1 answer:
Karolina [17]4 years ago
5 0

Answer:

D. Permian. This is when 96% of all species on the planet became extinct.

You might be interested in
Microorganisms that infect the middle ear cavity most frequently come from the __________
topjm [15]

Microorganisms that infect the middle ear cavity most frequently come from the pharynx.

<h3>What is pharynx?</h3>
  • A hollow tube called the pharynx extends from the back of the nose down the neck and finishes at the top of the trachea and esophagus.
  • The nasopharynx, oropharynx, and hypopharynx are the three components of the pharynx.
  • The pharynx, sometimes known as the throat, is a component of the digestive and respiratory systems.
  • It transports food, liquid, and air from the mouth and nose downward.
  • Common infections like tonsillitis and a sore throat can spread to the pharynx.
  • The throat is a muscular tube that resembles a ring and serves as the conduit for liquids, food, and air.
  • It connects the mouth and nose to the breathing passages and the esophagus and is situated behind the nose and mouth.

Learn more about pharynx here:

brainly.com/question/75628

#SPJ4

7 0
2 years ago
Describe a windstorm.
MatroZZZ [7]

Answer:

Windstorm, a wind that is strong enough to cause at least light damage to trees and buildings and may or may not be accompanied by precipitation. ... Wind damage can be attributed to gusts (short bursts of high-speed winds) or longer periods of stronger sustained winds.

Explanation:

3 0
3 years ago
Read 2 more answers
The membrane that surrounds a cell acts as a gateway. This helps the cell stay healthy. Why does the cell need a gateway?
guapka [62]
I think it might be C I am not 100% sure though
3 0
3 years ago
Legend has it that there was a less famous geneticist in the 1800s
NNADVOKAT [17]

Answer:

Few crosses

The complexity of cat genetics

Crosses not controlled by the researcher

Explanation:

The purpose of this question is to determine why  Megor Grendel is less famous than that of Gregor Mendel.

Gregor Mendel examined pea plants, which have a number of benefits for deducing genetic rules, including:

  • The researcher has total control over the crosses.
  • Because the peas have both self and cross-fertilization, it is possible to alter the crosses in the simplest way possible.
  • Pea plants may be examined for a greater series of generations than cats or other animals.
  • Because plant genetics is not overly complicated, several traits may be investigated at the same period.

As a result, the primary factors why Megor Grendel's experiments are not well-known:

  • The presence of only a few crossings: It is impossible to establish a genetic theory with such a small number of crossings on the test subject of the organism.
  • Cat genetics is too complicated therefore, the fur gene color on the X-chromosome, a characteristics mosaic inheritance. As a result, It is much too complicated to deduce an inheritance pattern.
  • Crossings that the researcher cannot fully control. Unlike plants, crosses in animals cannot be totally controlled by the researcher.

As a result, it is impossible to draw any conclusions from them.

3 0
3 years ago
What type of ion is found in an acid?.​
Rom4ik [11]

Answer:proton

For our purposes at this point in the text, we can define an acid. as a substance with at least one hydrogen atom that can dissociate to form an anion and an H + ion (a proton) in aqueous solution, thereby forming an acidic solution.

Explanation: hope it helps!

8 0
3 years ago
Other questions:
  • HELP BIOLOGY QUESTION:
    14·1 answer
  • Please help<br>this is urgent​
    12·1 answer
  • I have involvement in the immune system
    5·1 answer
  • Insects are usually _______.
    13·1 answer
  • I don’t know how to answer this question
    12·2 answers
  • Is it important to have a family
    9·1 answer
  • Which molecule brings amino acids to the ribosomes during protein synthesis?
    13·1 answer
  • Explain how seasons are similar and different on your Uranus as compared to the Earth.​
    10·1 answer
  • 2. A man has type A blood and his wife has type B blood. A physician types the blood of their four children
    11·1 answer
  • What is the name of the process that stem cells undergo to become specialised cells?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!