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
amid [387]
3 years ago
7

There is a large tree growing in the middle of the lawn. You notice that there are lots of daisies in the lawn, but none under t

he tree. Suggest two hypotheses to explain why there are no daisies under the tree. Choose one of your hypotheses and make a prediction from it which can be tested by an experiment. Describe an experiment which could be done to find out if the prediction is correct.
Biology
1 answer:
Mumz [18]3 years ago
5 0

Answer and Explanation:

<u>Hypothesis:</u>

1- No daisies can grow under the tree because its canopy does not allow enough radiation to reach the ground under it.

2- No daisies can grow under the tree because it changes the soil composition and pH.

<u>Prediction:</u>

Daisies grow better and faster when they are completely exposed to solar radiation.  

<u>Experiment:</u>

  • 30 daises young plants, grown under the same conditions, will be planted in three different parcels. Planting will take place during spring.
  • The three parcels will have the same soil, with all the nutritional requirements that daisies need to grow properly. The three parcels will be watered every day to keep equal humidity conditions.
  • The variable under study is the radiation, so this is the only factor that will differ between parcels. One of the parcels will be completely exposed to solar radiation. A second parcel will receive sunlight during half of the day, while the other half of the day will be under the shadow. The third parcel will be completely under the shadow (no radiation will reach this parcel).  
  • Daisies will be grown for four months. Every fifteen days all the plants will be counted in each parcel to check their survival. Their length will be measured, and the presence of new leaves, floral buttons, and ramifications will be registered. The size of the leaves and flowers will also be registered.
  • After four months, data will be analyzed to evaluate how does the radiation influence the plants' growth.
You might be interested in
which of the following statements is true? A.) Both unicellular and multicellular are at some risk of having too much water ente
andrew11 [14]
A is your answer.
Water containing no salt is known as isotonic solution
4 0
2 years ago
Compare a cup of hot tea to a lake. Choose the best response.
user100 [1]

Answer:

the hot tea has more thermal energy and higher temperatures

8 0
2 years ago
Explain how Magma and Sediments are formed? What happens to magma when it cools? What happens to sediments when it becomes compa
Vadim26 [7]

Answer:

Magma is formed when hot liquid comes from the earth's core into the cold crust of the Earth. When this liquid solidifies it loses heat to the surrounding crust and begins to melt the surrounding rock.

Sediments are formed when magma rises to Earth's surface from a volcanic eruption where the magma cools into igneous rock. On the surface, weathering and erosion break down the igneous rock into pebbles, sand, and mud, creating sediment, which accumulates in basins on the Earth's surface.

When sediment becomes compacted and cemented together it forms a type of rock called sedimentary rock

4 0
2 years ago
Describe two ways in which genetic recombination occurs during meiosis.
Nutka1998 [239]
1) Independent assortment during metaphase I /anaphase I 
<span>2) Crossing over during prophase I
3.) </span><span>Random mutation during replication 

( I gave you three ways).</span>
6 0
3 years ago
What is osmoregulation
cupoosta [38]

Answer:

Osmoregulation is a process that regulates the osmotic pressure of fluids and electrolytic balance in organisms. In animals, this process is brought about by osmoreceptors, which can detect changes in osmotic pressure. Humans and most other warm-blooded organisms have osmoreceptors in the hypothalamus. Besides the brain, osmoregulators are also found in the kidneys..

hope this answer helps you..

3 0
3 years ago
Other questions:
  • Introducing additional organisms of the same existing kinds will not upset the ecosystem.
    10·2 answers
  • When the organisms of a particular population seek habitats that are unevenly spaced, the distribution of the individuals in the
    6·1 answer
  • Advancements in nuclear science have led to new technology which has been beneficial to society. Which technology is a possible
    5·1 answer
  • Give one example of a question that science would not be able to test. Then, explain how it could be changed into a testable que
    9·1 answer
  • I need to know which are prokaryotes and which are eukaryotes please!
    13·1 answer
  • Question about nitrogen and phosphorous cycle? Which statements are true, list all that apply
    14·1 answer
  • Genes are _____. responsible for inherited traits units of coded DNA located in a specific place on a chromosome all of the abov
    15·2 answers
  • Chemical substances in plants that act as internal stimuli are called
    15·1 answer
  • Why is dna referred to as your genetic fingerprint??
    8·1 answer
  • The middle ear is normally filled with Group of answer choices mucous collections. blood. air. serous fluid.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!