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
LenKa [72]
3 years ago
8

The mass extinctions that occurred 250 million years ago and 65 million years ago may have been due to gradual processes or

Biology
2 answers:
schepotkina [342]3 years ago
4 0

Answer:

The mass extinction that occurred 250 years ago and the mass extinction that   occurred 65 million years ago may have been caused due to gradual processes or due to the catastrophic effect.

The mass extinction that occurred 250 million years ago was caused to the sudden climatic change and lead to extinction of almost 95% of the population present at that time.

The extinction of dinosaur took place 65 million years ago due to the meteorite that hit the earth.                

Nitella [24]3 years ago
3 0
Or otherwise called (Natural selection)
You might be interested in
Question 39 (1 point)
mihalych1998 [28]

Answer:

The correct answer is - d) all choices are correct.

Explanation:

Cattles remember the behaviour of human how they have treated them in the experiment and they also become less fearful of their handlers due to their gentle treatment.

Cattles develop memory and have a bond with their handlers and remember them and recognize them very well. In this experiment, it is found that animals also create an emotional bond with the human treat them well and gentle.

3 0
2 years ago
Dean is a crime scene photographer. In which order should he photograph the crime scene?
Artemon [7]
There is no prescribed length of time it takes to photographically document a crime scene. The amount of time spent depends on the size and complication in the crime scene, how much there is to document and environmental factors like weather or danger to the investigative team. It can consist of thousands of photographs and hours of work.
Crime scene photography should not just focus on the obvious. The purpose of crime scene photography is to document what is there and where it is in relationship to the scene, whether it is obviously connected to the crime or not. For example, a photographer in Florida shot the inside of every cabinet and the refrigerator at a homicide scene in a home, just as a matter of procedure. It was later discovered that the victim had a receipt for a six-pack of beer, matching the beer shown in the photograph of the refrigerator. Relatives noted that the victim did not drink beer. Further investigation led the team to the convenience store where the beer was purchased and the surveillance tape showed the victim with an unknown person purchasing the beer. It turns out that the victim had picked up a hitchhiker, purchased beer for that person and come back to the house. The photograph of the refrigerator contents had created the link enabling the investigators to find the suspect.
3 0
2 years ago
Read 2 more answers
you looked at a cross section of a bone. Describe how you could model theinterior structure of an entire body?
Thepotemich [5.8K]
Identify the anatomical features of a bone
Define and list examples of bone markings
Describe the histology of bone tissue
Compare and contrast compact and spongy bone
Identify the structures that compose compact and spongy bone
Describe how bones are nourished and innervated
3 0
2 years ago
What is the responsibility of circulatory system​
KiRa [710]

Answer:

itis responsible for the circulation as wel as purification of blood in the human body

3 0
3 years ago
Read 2 more answers
3. Which one of the following statements best describes the first thing researchers need to do to manipulate
dmitriy555 [2]
<span>A. Restriction enzymes would be used to cut the DNA into smaller pieces. The first step in DNA manipulation for genetic engineering is </span>to choose the piece of DNA from a source. Restriction enzymes are used in cutting these DNA pieces.
3 0
3 years ago
Read 2 more answers
Other questions:
  • How does food move through the intestines?
    11·2 answers
  • Do you want to do this
    13·1 answer
  • Hi I need help ???!!!
    13·2 answers
  • Which of the following is not a part of an atp molecule
    6·1 answer
  • I need help on number 10 please
    10·2 answers
  • Nuclear power is a major contributor to global warming.
    6·1 answer
  • If an organism's diploid number<br> is 50, then what will its haploid
    8·1 answer
  • How the Law of Conservation of Matter and Energy is conserved during these processes based on the numbers of molecules of the re
    8·1 answer
  • A short-haired cat has a litter of kittens. Some of the kittens have long hair and some have short. Which of the following state
    7·2 answers
  • What would happen to the rate of respiration if we put the yeast into boiling water to make the yeast suspension
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!