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
gayaneshka [121]
3 years ago
7

Assess the importance of variations to natural selection

Biology
1 answer:
abruzzese [7]3 years ago
5 0
Variations are important to natural selection because if every species was the same and natural selection did not like them that whole species would go extinct, if there is a variety of that species it will serve because natural selection will only take out the type of that species it does not like, for example sharks! There are many types of sharks. If all sharks where put into fresh water and they where all the same type they would all die but since there is a variety the sharks that can live in fresh water live and the ones that don’t die.
You might be interested in
Can two purple flowered and yellow seeded parents produce offspring that have white flowers and green seeds?
Norma-Jean [14]
Yes, as long as both parents are heterozygous with recessive alleles of white flowers and green seeds. In this case, the ratio of chance of resulting purple flower yellow seed to white flower green seed will be 3 :1.
However, if both of the flowers are homozygous, which means they only have purple flower and yellow seeded allels, or even one is, the result is not possible, because we know that purple flowered and yellow seeds are dominant as both plants has these characteristics expressed.
5 0
4 years ago
Please fill in the blanks.
Veronika [31]
1) Reflects
2) Gravity
3) comets
5 0
3 years ago
All of the following are examples of limiting factors EXCEPT
Natasha2012 [34]

Answer:

Weather conditions

Explanation:

Food can be limited based on location, however, scientists can control what kind of food it is. Soil can be tested and experimented on. There can be a lot of it and different kinds. Space is fought over because of territories and is limited compared to how many people and animals there are. Weather is not something that can be controlled in an experiment since it is sporadic.

7 0
3 years ago
Read 2 more answers
98 POINTS
dybincka [34]
9=a 10=b 11=f 12=c 13=d 14=e
6 0
3 years ago
Read 2 more answers
The contractile unit in the muscle cell is called the
Debora [2.8K]

Answer:

c. Sarcomere

Explanation:

Sarcomere is one of the basic components of striated muscle that allows muscle contraction. That is, it is the contractile unit in the muscle cell.

The sarcomere is made up of a protein complex, the most important of which are actin and myosin. In the presence of Ca2 +, the ends of the myosin bind to nearby actin molecules and fold with great velocity. The actin filament then moves to the center of the sarcomere, triggering the approach of the two Z lines. This causes the sarcomere to shrink and, to a large extent, lead to contraction of the entire muscle.

4 0
4 years ago
Other questions:
  • In facilitated diffusion, what helps nutrients cross the membrane wall
    10·2 answers
  • Which movement of substances through a cell membrane against a concentration gradient requires energy?
    13·1 answer
  • What is the limbo phase
    14·1 answer
  • 3. A living thing made of many cells is called a<br>organism.​
    14·2 answers
  • Living plants may be valuable additions to science classrooms. Which is the most important safety consideration when planning to
    15·1 answer
  • Which of the following is true about cells
    12·1 answer
  • A group of similar cells that perform the same function is called a (an)
    12·1 answer
  • Describe the force of Earth’s gravity.
    10·1 answer
  • Krebs cycle is also known as citric acid cycle give Give scientific reason
    15·1 answer
  • What does the writer use to help readers understand the sequence of steps? what should the writer add when verbally presenting t
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!