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
Readme [11.4K]
3 years ago
15

Why are identical twins rare?

Biology
1 answer:
barxatty [35]3 years ago
8 0

Answer:

Tbh I don’t really know but I think it’s because the sperm has to fertilize one egg and then that egg separates into two, creating two IDENTICAL kids

Explanation:

You might be interested in
Which spheres are represented when fossil form?
kap26 [50]

Answer:

biosphere, geosphere

Explanation:

6 0
3 years ago
Name the animal with only bottom teeth. ​
user100 [1]

Giraffe is the animal with bottom teeth.

6 0
3 years ago
In cats the allele for short hair is dominant over the allele for long hair. A short haired male and long haired female have kit
SCORPION-xisa [38]

Answer:

Genotype of parents:                  Ss     x     ss

Genotype of offsprings:                  Ss    ss

Expected ratio of short to long:      2  :   2 = 1 :  1

The actual ratio in this problem is Eight kittens have short hair and 3 have long hair: 8 : 3

Explanation:

In cats the allele for short hair is dominant over the allele for long hair. (SS or Ss for short hair; ss for long hair).

A short haired male and long haired female have kittens. Eight kittens have short hair and 3 have long hair.

For the parents to have been able to produce long haired offsprings, it means both parents possess one copy each of the recessive traits. Thus we have

Phenotype of parent: A short haired male and long haired female

Genotype of parents:                  Ss     x     ss

Genotype of offsprings:                  Ss    ss

Expected ratio of short to long:      2  :   2 = 1 :  1

The actual ratio in this problem is Eight kittens have short hair and 3 have long hair: 8 : 3

4 0
3 years ago
3.Why is the surface of the Earth in constant motion?
tekilochka [14]
3. It's because of the heat underneath the crust of the Earth. Because heat rises, the molten rock and such underneath the crust rises to the top and then the movement underneath causes things on top to move. 

4. Plates are the different sections that the lithosphere has been cracked into. These plates once all fit together as a giant plate called Pangaea. 

5.  An earthquake is a sudden, sometimes violent shaking of the ground, as a result of the shifting of tectonic plates, or volcanic eruption. 

6. On the magnitude scale, earthquakes range from 2.5 or less (usually never felt but strong enough to be detected by seismograph) to 8.0 or higher. Causes extreme damage; enough to destroy whole cities at once if close enough to the epicenter. 

7. Depends on what kind you're looking for. I'd look it up for your specific topic.

8. To apply a forces to something, usually resulting in a stretch.

9.  The action of compressing something, to flatten or squeeze by pressure

10. A strain on the layers of something because of pressure, resulting in the shifting of those layers.

11. In areas undergoing extension or stretching. It's when the crust is extended. 

12.  The hanging wall drops relative to the footwall. 

13. This is what happens when the hanging wall <u>rises</u> relative to the footwall. (The opposite of a normal fault)

14. 
8 0
3 years ago
I have 10 question will give medal and be a fan
ololo11 [35]
1) D
2) B
3) C 

HOPE I HELPED!!!!!
4 0
3 years ago
Other questions:
  • Wich of the following is not a reptile?
    15·2 answers
  • Which of these substances is a compound?
    9·2 answers
  • What is a function of the ground tissue of a root
    13·1 answer
  • What is the independent variable in this experiment? A) temperature B) Number of chirps C) Number of crickets D) Location of the
    13·1 answer
  • During chemistry class your teacher challenged you to dissolve four salts as quickly as possible in a specific volume of water.
    13·2 answers
  • In a certain population of rabbits, the allele for brown fur is dominant over the allele for white fur. If 10 out of 100 rabbits
    14·1 answer
  • ILL GIVE U BRAINLIEST!!!
    6·2 answers
  • When a cell is placed in a hypertonic solution which direction would the water move?
    13·1 answer
  • Which of these best describes fossils ?
    14·2 answers
  • PLEASE HELP!!!!!!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!