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
musickatia [10]
3 years ago
14

A plant scientist was hired by a greenhouse operator to devise a way to force iris plants to bloom in the short days of winter.

Iris normally blooms as long-day (short-night) plants. Which of the following has the best chance of creating iris blooms in winter?A) Increase the temperature to more closely follow summer temperatures.B) Artificially increase the period of darkness in the greenhouse.C) Alternate four hours of darkness with four hours of light repeatedly over each 24-hour period.D) Interrupt the long winter nights with a brief period of light.
Biology
1 answer:
Ksju [112]3 years ago
3 0

Answer:

Interrupt the long winter nights with a brief period of light.

Explanation:

Long day plants, also called short night plants, flower when the dark period is equal or less than the critical period specific for the species. These plants normally flower in summers when nights are short and days are longer. Winters have a long dark period and do not support flowering in shirt night plants.

A continuous dark period is critical for flowering. A short night plant can flower in winters (having longer dark periods) if the dark period is interrupted by exposing the plant with a flash of light. To make short night plants, such as iris to flower in winters, the plant should be given short period of light after completion of critical dark period.

You might be interested in
PLEASE HELP MEEEEEEEEEE
Irina18 [472]

Answer:

False, I think it has it’s own purpose somehow, it’s made for no reason

Explanation:

Please give me brainliest

3 0
2 years ago
Read 2 more answers
What is decreased when lactase is added to milk?
irinina [24]
The answer is A.
Lactose is known as milk sugars.
Therefore giving you your answer- sugars add sweetness.
3 0
3 years ago
Read 2 more answers
Describe the eardrums function.
True [87]
The eardrum is a thin flap of skin that is stretched tight like a drum and vibrates when sound hits it.
4 0
3 years ago
1. a molecule that serves to make reactions work vesicles 2. tiny sacs in the cell that may contain starch enzyme 3. packets wit
slamgirl [31]
1. Enzyme is the molecule that serves to make reactions work. Enzymes are biochemical catalysts that catalyses chemical reactions in a cell by acting on substrates and convert them to products. Their rate of action increases with increase in substrate concentration, reaching optimum when all active sites of the enzyme are engaged.

2. Plastid are the tiny sacs in the cell that may contain starch. Plastid are major cell organelles found in the cells of plants and algae. Plastids are site for the manufacture and storage of important  chemical compounds used by the cell. They often contain pigments used in photosynthesis, and the types of pigments present can change or determine cells color.

3. Lysosome are packets within the cell that contain digestive enzymes. Lysosomes are one of many organelles found in animal cells. they are tiny like sacs filled with enzymes that enables the cell to process nutrients. They contain digestive enzymes which helps in the digestion of worn out organelles, food particles and engulfed viruses or bacteria.

4. Mitochondrion is a structure within a cell that is responsible for production of energy. Energy in a cell is produced through a process of cellular respiration which involves use of nutrients with oxygen gas to yield energy inform of ATP, water and carbon dioxide. The process takes place in the mitochondrion where oxygen acts as proton acceptor in the electron transport chain coupled by production of energy.

5. An Organelle is a small structure that serves specialized functions. A cell is made up of various organelles that help it perform its functions. Each organelle is specialized to perform as specific function different from other organelles, for example ribosomes is an organelle involved in the manufacture of proteins.

6. Golgi apparatus are group of flattened sacs that package and export materials out of the cell. Golgi apparatus also called golgi complex or golgi body, is a membrane bound organelle in eukaryotic cells that is made up by a series of flattened, stacked pouches called cisternae. They are responsible for transporting, modifying, and packaging proteins and lipids into vesicles.

7. Vesicles are tiny sacs connected to the Endoplasmic reticulum and Golgi apparatus. Vesicles are small structures within a cell, or extracellular, consisting of fluid enclosed by a lipid bi-layer. they form naturally during the process of secretion (exocytosis), uptake (endocytosis) and transport of materials within the cytoplasm.
5 0
3 years ago
Read 2 more answers
The branch of biology dealing with interactions among organisms and between organisms and their environment is called
Juliette [100K]
I believe this study is called ecology.
5 0
3 years ago
Other questions:
  • Which is the most likely reason that’s cactus use this special photosynthesis process
    13·2 answers
  • which of the following was most likely not present in creating the amino acids of early Earth's waters of the past? A:Nitrogen B
    15·1 answer
  • Condition of difficult or painful urinating
    6·2 answers
  • The respiratory system allows for gas exchange to happen in the lungs. How does the respiratory system affect the cardiovascular
    7·1 answer
  • I PUT THIS AS 20 POINTS SO PLEASE HELP! :(
    9·1 answer
  • When electrons of a chlorophyll molecule are raised to a higher energy level, they?
    8·1 answer
  • NEED HELP NOW 100 POINTS WILL MARK BRAINLIEST!!! PLZ ANSWER ALL AND DO NOT COPY OFF WEBSITE QUESTIONS DOWN BELOW
    14·2 answers
  • What is an advantage of using pluripotent cells instead of multipotent cells in
    7·2 answers
  • What is the name of one of the lower chambers of the heart that receives blood from the upper chambers and pumps it into the art
    15·1 answer
  • Place the steps for the formation of the enzyme pepsinogen in the correct order.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!