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
rosijanka [135]
3 years ago
14

In some plants, the pistils don't form until a few days after the stamens do. How would this keep a plant from self-pollinating?

Biology
1 answer:
andreyandreev [35.5K]3 years ago
5 0
Pollination is the process in which pollens are transferred to the female reproductive organs of the plant, where fertilization will take place and give birth to more new plants. 

Some plants have the ability to make the stamens mature first before the pistils to prevent itself from self-pollinating. This is because factors found within the environment such as animals, wind, among other, may pre-maturely disperse the pollen into the stigma of the plant. If a situation as such would happen, there will be no pollen left in that flower to land on the stigma to start the fertilization of the plant. 
You might be interested in
If bird song promotes an individual's ability to attract a mate and reproduce, then the song has a(n) _____ function. assumptive
Contact [7]

Answer:

If bird song promotes an individual's ability to attract a mate and reproduce, then the song has an <u>     function</u>

<u />

Explanation:

Within a community, certain novel traits are fixed because they impart beneficial adaptations on an individual in their ecosystem (like mate attraction). Such modifications enable such individuals to live longer than their peers, and breed over time to produce more offspring who also exhibit these traits.

Natural selection takes place and is determined by the fitness of an individual , it contributes to evolutionary change as individuals with certain traits reproduce, the traits become fixed and prevalent within the population.

5 0
3 years ago
Which statements about plant and animal cells is true?
erma4kov [3.2K]

Plants have a cell wall and chloroplasts; animal cells do not have either

Hope this helps : )

6 0
2 years ago
Clara is a vegan and she does not drink milk, a food advertised as a best source of calcium. But she is not worried too much sin
marysya [2.9K]

Explanation:

%DV label= 27%

1 cup of cooked collared greens= aprx 266.60 mg of Calcium

Assuming Clara is...

  • a teen, her required adequate intake (RAI)=  1300 mg/ day
  • an adult, her RAI= 1000 mg/day

For teenaged Clara

∵27 % DV= 270mg

% daily Calcium=  \frac{270}{1300}  * 100= = 20.8 ≈ 21%

=0.21

<u>21% of her daily calcium needs is in a cup of cooked collard greens.</u>

Calcium is an essential mineral required by the human body, it is involved in cell signalling, muscular function and homeostasis. Along with fats, fiber, vitamin A and C and iron, calcium makes up part of a recommended daily intake target or DV- these are integral to a balanced diet.

Learn more about energy storage at brainly.com/question/523624

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

3 0
3 years ago
Carlos is heading a student council project to improve cafeteria meals. He surveyed all students who eat cafeteria
Amiraneli [1.4K]

Answer:

A.) He should total the votes for each of the options and plot these five values in a chart.

Explanation:

5 0
3 years ago
Which of the following best describes mechanical advantage? *
Travka [436]

Answer:

option A is correct

.........,..

8 0
3 years ago
Other questions:
  • The depolarization causes a ____________ that excites the entire membrane.
    8·1 answer
  • The nurse is assessing a 10-month-old infant during a checkup. which developmental milestones would the nurse expect the infant
    8·1 answer
  • Which of the following is true about top predators? Select one: a. They include bacteria and fungi. b. Their removal increases b
    13·1 answer
  • What change would most improve the usefulness of the graph
    12·2 answers
  • burning fossil fuels like gasloine relases harmful gases into the air. why don’t the cars in the world solar challenge release t
    6·1 answer
  • What is convergent evolution?
    8·1 answer
  • What does the theory of evolution contribute to conservation biology?
    11·1 answer
  • Why are there no gram-positive archaea species but there are gram-positive bacteria species
    15·1 answer
  • DNA does not contain the nitrogen base_______.
    9·2 answers
  • in the experiment determining the parental genotype of fruit flies from a monohybrid cross, if the number of long wing offspring
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!