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
DiKsa [7]
3 years ago
14

Two separate species of squirrels have evolved after being separated by the Colorado River's erosion of the Grand Canyon. What t

ype of speciation has occurred here?
A. Allopatric Speciation


B. Sympatic Speciation


C. Disruptive Selection


D. Group Behavior
Biology
1 answer:
marta [7]3 years ago
3 0

Answer:

Option A

Explanation:

In this case the two species of squirrels have evolved when their combined population got divided into parts and was separated as a cause of natural calamity i.e Colorado River's erosion of the Grand Canyon, thereby forced to live in two different geographies and hence evolve differently from each other. The two geographies mentioned above remain disconnected by any natural barrier thereby restricting successful mating of the two population  groups of squirrels.

hence, option A is correct

You might be interested in
In flowering plants, sperm cells are made by the:<br><br> ovary<br> cone<br> spore<br> anther
77julia77 [94]

Answer:

Animal life cycles have meiosis followed immediately by gametogenesis. Gametes are produced directly by meiosis. Male gametes are sperm. Female gametes are eggs or ova.

The plant life cycle has mitosis occurring in spores, produced by meiosis, that germinate into the gametophyte phase. Gametophyte size ranges from three cells (in pollen) to several million (in a "lower plant" such as moss). Alternation of

Answers is

(Spore)

6 0
3 years ago
Read 2 more answers
How can professionals increase their levels of stress as a result of personal work habits?
Inessa05 [86]
The answer is Procrastinating

Work ethics ,working at a steady rate and personal goals will help with control, organization and consistency which will all reduce stress

Procrastinating builds up work until last minute which will give the most stress
8 0
2 years ago
The type of immunity that is general and nonspecific and recognizes microbial invaders quickly is called:_______
GalinKa [24]

Answer:

Innate or natural immunity

Explanation:

Innate immunity is a defense system that we are born with and that protects us against antigens. It is the sum of all defense mechanisms that occur naturally to protect an individual from infectious diseases. They are physiological mechanisms that  are present throughout the entire animal kingdom  and it is an inherent quality of each species. They are not specific to a given pathogen, nor do they generate memory

8 0
3 years ago
A) 0%<br> B) 25%<br> C) 50%<br> D) 100%
aksik [14]

Answer: C). 50%

Explanation:

The possible genotypes of the offsprings are Gg and gg. Gg has a dominant gene G for glossy leaves and so will manifest as glossy leaves because G is dominant over g which is recessive. Fifty percent of the offsprings will have glossy leaves while the remaining fifty percent will have nonglossy leaves.

See the attached punnet square for illustration.

8 0
3 years ago
Can someone help me?
Taya2010 [7]

Answer:

It would be 100% purple flowers because 4 quarters equals 1.00 and it would be 50% white flowers because 2 quarters equals 50

5 0
3 years ago
Other questions:
  • What bonds to guanine (G) in DNA?
    9·1 answer
  • What term describes the ocean as a storage location for this heat
    13·1 answer
  • Write chemical equation for the process​
    8·1 answer
  • What is the structure labeled A?
    6·2 answers
  • Photosynthesis and cellular respiration are processes that create what for the cells​
    10·2 answers
  • What are the green structures in the cytoplasm of elodea cells? What do they do?
    11·1 answer
  • As with any major scientific discovery, the previous work of many different scientists help contribute to final conclusions. Whi
    6·1 answer
  • What if a pregnant woman does sex in 7th month?​
    9·2 answers
  • Homeostasis refers to:
    14·2 answers
  • Governments should invest more money in protecting areas of natural beauty. To what extent do you agree?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!