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
laila [671]
3 years ago
15

Angiosperms may self-fertilize if pollen from a flower is transferred to egg cells in the same flower, or they may cross-fertili

ze. Carried on the wind or by other means, pollen grains from other flowers may land on the sexual organs of a flower and fertilize it. Can you think of other ways that cross-fertilization of flowers might happen (besides by the wind)? PLEASE HELP ME OUT
Biology
1 answer:
cricket20 [7]3 years ago
8 0

Answer: Pollination, the transfer of pollen from flower-to-flower in angiosperms or cone -to-cone in gymnosperms, takes place through self-pollination or cross-pollination.

Cross-pollination is the most advantageous of the two types of pollination since it provides species with greater genetic diversity.

Maturation of pollen and ovaries at different times and heterostyly are methods plants have developed to avoid self-pollination.

The placement of male and female flowers on separate plants or different parts of the plant are also barriers to self-pollination.

You might be interested in
Help look at the picture​
Inessa05 [86]

The Steady State Theory state that the density of the universe was remaining constant.

<h3>Steady State Theory:</h3>

In cosmology, a steady-state theory is a perspective that holds that the universe is constantly expanding while maintaining a constant average density. According to this theory, the matter is continuously created to form new stars and galaxies at the same rate that older ones fade away due to their expanding distance and accelerating recession. The average density and configuration of galaxies are the same as any location in a steady-state universe, which has no beginning or end in time.

British scientists Sir Hermann Bondi, Thomas Gold, and Sir Fred Hoyle first proposed the hypothesis in 1948. Hoyle expanded on it in order to address issues that had come up in relation to the alternative big-bang theory. According to the hypothesis, in order to maintain a constant average density of matter across time, the new matter must constantly be created, primarily as hydrogen. With nearly five times as much dark matter, the amount needed is small and not immediately observable: one solar mass of baryons per cubic megaparsec every year, or one hydrogen atom per cubic meter every billion years.

Learn more about steady-state here:

brainly.com/question/4956578

#SPJ1

5 0
11 months ago
Which scientist proposed that "all living cells arise from pre-existing cells"?
slamgirl [31]

Answer:

3Rudolf Virchow

Explanation:

option c

6 0
3 years ago
Read 2 more answers
The biological levels of organization range from a single cell all the way up to the biosphere in a highly structured hierarchy.
ELEN [110]

Answer:

B) Tissue is made of different types of cells.

D) Organs are made of different types of tissue.

Explanation:

The tissues are made of different types of cells. The organs are also made of different types of tissue. There is no need of same types of tissues to make organs. Thus, option (B) and (D) is correct answer.

7 0
3 years ago
Read 2 more answers
A parent cell that has 4 chromosomes will produce two daughter cells by mitosis, each with how many
siniylev [52]

Answer: They will each have 4 chromosomes.

Explanation:

They will each have the same number of chromosomes (4) as you cannot gain or lose chromosomes unless there is a genetic mutation that has occured.

3 0
2 years ago
A galaxy is made up of gas ,dust ,and many stars .what do all stars have in common
Rashid [163]

Answer:

They all came from the big bang.

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • What protects earths surface
    11·1 answer
  • The deadliest of all mass extinctions, which killed 95% of all living organisms, was the _____.
    10·2 answers
  • New oceanic lithosphere is unable to form at mid-ocean ridges. Please select the best answer from the choices provided T F
    5·2 answers
  • A medical researcher experimented with the effects of calcium intake on the healing time of broken bones. People who had similar
    14·2 answers
  • Ice in a glacier flows somewhat like liquid water. What is the main difference?
    12·2 answers
  • The idea that changes in Earth orbit lead to climate change is called _________
    11·2 answers
  • Process occurs in the<br> mitochondrion. Produces CO2
    5·1 answer
  • Supuie ) Prokaryotes have nucleus that is without : i) nuclear ii) membrane nucleous iii) nucle​
    6·2 answers
  • How is fish adapted? Write any two adaptational characters of them.​
    15·2 answers
  • How do white blood cells destroy damaged or infected cells?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!