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
Tems11 [23]
3 years ago
14

Define thigmotropism, phototropism, and gravitropism and give an example of each​

Biology
1 answer:
Rufina [12.5K]3 years ago
8 0

Answer:

a) Thigmotropism

b) Phototropism

c) Gravitropism

Explanation:

A) the turning or bending of a plant or other organism in response to a touch stimulus. example:  the folding movement of the Mimosa pudica leaflets, can be considered as an example of thigmonastism.

B) the orientation of a plant or other organism in response to light, either towards the source of light ( positive phototropism ) or away from it ( negative phototropism ).example: Sunflower is a highly phototropic plant. They grow towards the sun and are also seen tracking the movement of the sun throughout the day. That is, the flower keeps changing its direction with the movement of the sun. Sunflower requires more light for its growth and survival.

C) The gravity-directed growth process, called gravitropism, dictates upward shoot growth to ensure a proper positioning of the leaves for efficient photosynthesis and gas exchange. example: tree has fallen over and due to gravitropism exhibits this arched growth.  

You might be interested in
How does the Sun heat the Earth?<br><br>Explain your answer in your own words.
iris [78.8K]

Explanation:

The sun heats the earth through radiation. Since there is no medium (like the gas in our atmosphere) in space, radiation is the primary way that heat travels in space. When the heat reaches the earth it warms the molecules of the atmosphere, and they warm other molecules and so on.

8 0
3 years ago
What is respiration ? how does it occur ?
larisa [96]

Explanation:

Respiration is the process of releasing energy through the breakdown of nutrients such as glucose. Respiration can be aerobic (uses oxygen) or anaerobic (does not use oxygen). Aerobic respiration takes place continuously in both plants and animals. It occurs through a process known as cellular respiration.

6 0
3 years ago
Which is an example of one of the first land plants to evolve
kap26 [50]
Green algae and land fungi are some of the first land plants to evolve.
6 0
3 years ago
Read 2 more answers
The greatest source of indoor air pollution is _____.
Masja [62]

Answer:

The correct answer would be option D, Cigarette Smoke.

Explanation:

Air Pollution is simply the pollution in the Air. Air pollution consists of gases or solid particles. Air pollution can be indoor and out door. Outdoor pollution is caused by the chemical emissions, factory gases emission, dust, car emissions, etc. The indoor air pollution would be considered the pollution that is caused by the indoor sources, such as fuel burning, smoke generation, etc. So the source of indoor air pollution which is considered the greatest is Cigarette Smoke, as large amount of people smoke inside the facilities, increasing the air pollution.

5 0
3 years ago
Read 2 more answers
When were biofules invented?????????????
creativ13 [48]

Answer:

1930s

Modern biodiesel fuel, which is made by converting vegetable oils into compounds called fatty acid methyl esters, has its roots in research conducted in the 1930s in Belgium, but today's biodiesel industry was not established in Europe until the late 1980s.

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • The purpose of a business continuity planning session in an organization is to ________.
    11·1 answer
  • Table salt is the result of a(n) _____. covalent bond ionic bond hydrogen bond
    9·2 answers
  • _____ is the earth's rock layer.
    14·1 answer
  • PLZZZZZZZZZZZZZZZZZZ HELP ASAP WILL GIVE BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • On one side of tRNA a ______________ is attached, and on the other side is one _________ _________.
    6·1 answer
  • Can someone please help
    8·2 answers
  • 5. What trophic level is a person that ate chicken for dinner?
    10·1 answer
  • Need all the answers will give 5 stars.
    9·1 answer
  • Which of these has hemoglobin release oxygen?
    9·1 answer
  • Hey help me out!<br>label A and B ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!