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
Ray Of Light [21]
3 years ago
7

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:
Korvikt [17]3 years ago
8 0

Answer: Catastrophic events.

Explanation: The mass extinction of the organism that occurred 250 million of years ago and 65 million years ago took place due to the natural gradual processes or due to the Catastrophic events.

Catastrophic events can be defined as the events that has a massive impact on the population of the species.

These events can be hurricanes, tornadoes, et cetera. that can lead to a destruction of mass number of species.

dusya [7]3 years ago
6 0

The mass extinctions that occurred 250 million years ago and 65 million years ago may have been due to gradual process or Catastrophic events.

You might be interested in
Most fungi are saprobes. What does this mean?Select one of the options below as your answer:A. They feed on dead and decaying or
Oksana_A [137]
A - Saprobes are organisms that feed on dead or decaying organic matter.
3 0
4 years ago
What was the author implying when she wrote the<br>sentence?​ world history
Sever21 [200]
You need more context for people to answer the question. We can’t respond with so little. We need to see the sentence so we can answer you problem.
8 0
3 years ago
Write one similarity and one difference between skeletal muscle and cardiac muscle.
sergij07 [2.7K]
A similarity would be that they are both muscles. A difference would be cardiac muscle is only in the heart while skeletal muscle can be found throughout the body. Another similarity would be that they are both striated. Another difference would be that skeletal muscle is generally on conscious or voluntary control while the cardiac muscle is automatically used to keep your heart pumping
8 0
3 years ago
Many songbirds breed in North America in the spring and summer and then migrate to Central and South America in the fall. They s
ololo11 [35]

Answer:

C.The two species do not breed in the same area, so they are reproductively isolated by allopatry.

Explanation:

Allopatry means that these two species are geographically separated during the breeding season, so they are reproductively isolated.

Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations  reach a high level  of genetic divergence. They can no longer interbreed which means they become two different species (speciation).

7 0
3 years ago
What is the importance of adaptation as a mechanism for the survival of species?
Nana76 [90]

Animals can defend themselves against predators and extreme weather by adapting. Numerous birds may conceal themselves under long grass, while weeds, insects, and other creatures can alter their color to blend in. Predators find it challenging to locate them in search of food as a result.

<h3>What are species?</h3>

A species is a unit of biodiversity as well as the fundamental classification and taxonomic rank of an organism in biology. The biggest group of organisms in which any two individuals of the right sexes or mating types can conceive a fertile offspring, usually by sexual reproduction, is referred to as a species. A species can also be identified by its karyotype, DNA sequence, anatomy, behavior, or ecological niche. In addition, since fossil reproduction cannot be studied, paleontologists use the chrono species idea.

<h3>What are the different types of species?</h3>
  • Typological Species
  • Nominalistic Species
  • Biological Species
  • Evolutionary Species
  • Taxonomic Species.
  • Microspecies.
  • Biological Species.
  • Evolutionary Species.

To learn more about species visit:

brainly.com/question/13259455

#SPJ4

8 0
2 years ago
Other questions:
  • Which vitamin aids in the conversion of tryptophan to niacin?
    14·1 answer
  • you find a plant unfamiliar to you and observe that it has vascular bundles scattered throughout the stem cross section. what do
    6·1 answer
  • Which of the following things are clues that a chemical change has taken place?
    8·1 answer
  • Please help me... this is fill in the blank question
    5·1 answer
  • Which of the following describes the relationship between population growth and the underground water supply?
    15·1 answer
  • Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. If 9 in 10,000 newbor
    9·1 answer
  • PLS PLS PLS HELP ME A.S.A.P! 20 POINTS AND BRAINLIEST! Consider an atom that has an electron in an excited state. The electron f
    15·2 answers
  • Which step of mitosis involves the nucleus splitting and nuclear membranes forming around each new nucleus?
    11·2 answers
  • Replicate the strand of dna TACCTAGGATAG
    10·1 answer
  • What are the precautions of asthma
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!