Answer:
The germination of a seed can eventually be affected by temperature, humidity and oxygen. Generally, the seeds remain viable longer at low temperatures, a humidity range of 3% to 20% and an environment with low partial pressure of oxygen. If some of these factors are not met, the seed can age or eventually germinate.
Explanation:
Seeds are the main reproductive organ of the vast majority of higher terrestrial and aquatic plants. They play a key role in the renewal, persistence and dispersal of plant populations, the regeneration of forests and ecological succession. In nature the seed is a staple food source for many animals. Seed germination often takes place on the surface of the soil, so the balance between the gain of soil moisture and its loss by transpiration to the atmosphere determines when the seed becomes saturated with moisture and begins to germinate.
The reasons why only few seeds germinate are as a result of some factors such as temperature, availability of water, depth of plant, presence of plant hormone (Gibberellin) in the seed. etc
Seed Germination is a process after seed dormancy where seeds sprout and develop into a new young plant. The reason why some seeds germinate and others do not are some of the following:
Temperature: For the germination of seed to occurs, seed needs to undergo a moderate amount of soil temperature. The cotyledon of the seedling gets destroyed when the seeds are being exposed to an extreme soil temperature. This is why most seed doesn't thrive in the deserts.
Availability of water: The soil in which seeds need to be planted must be moist and contain have a moderate amount of water holding capacity for the survival of the seed plant. The moderate amount of water holding capacity can be seen in humus soil.
Presence of plant hormone: The presence of Gibberellin in seeds helps the activation of the cotyledon to begin the germination process after the seed has absorbed water from the soil. In seeds where the enzymes are absent, such seeds do not germinate.
Learn more about seed germination here:
https://brainly.com/question/15976369?referrer=searchResults
Write about examples of how science has impacted your life.
Answer:
Science has made it much easier to understand the world around us, Work, improve technology, and planning ahead.
Explanation:
Scientific knowledge can improve the quality of life at many different levels—from the routine workings of our everyday lives to global issues. Science informs public policy and personal decisions on energy, conservation, agriculture, health, transportation, communication, defense, economics, leisure, and exploration. When scientific discoveries are combined with technological developments, they have resulted in the machines which are making our lives easy to manage. From household appliances to cars and planes, all are the result of science. Science has made it possible for farmers to save their crops from pests and other problems.
what causes wind?
a. earth spinning on its axis
b. differences in longitude
c. differences in latitude
d. differences in air pressure
Answer:
when the air pressure pushes against the earth it puts pressure so that is how we have wind answer: D
Explanation:
Answer:
a
Explanation:
where else are you going to get it from what else spins or what else moves it can also be the cars on the freeway how fast it goes
ANSWERR ASAPP FOR BRAINLIEST
Answer:
The answer is C.
Explanation:
Negative acceleration would mean downhill, therefore the correct answer would be c
Chemical barriers to pathogens include
lysozyme in the____and____
in
the stomach.
Answer:
tears or saliva and mucusExplanation:
hope this helps
Explanation:
Chemical barriers to pathogens include
lysozyme in the___saliva_and__mucus__
in
the stomach.
ary
Speech
Read It!
#1
Which is an example of
an organelle?
Read It!
#2
Which is an example of
something where cells
are working together to
perform a function?
.
ent
A. glucose
B. carbohydrate
C. protein
D. mitochondria
X
A. Energy from the Sun heats the
Earth
B. Tissue in the stomach
C. A large pane of glass for
protection
D. The top of a table holds plates
חס
Kester Science.com
Kester Science.com
g
Read It!
#3
Why are there not large.
single-celled organisms?
Read It!
#4
According the ptsage,
why is it important that we
study cells?
edia
ure
B.
Their cel wals are too small to grow
Cells do not function when they get too
large
There are not enough elements to grow
Cels do not like light.
C
D
A. So that we can improve our
technology
B. To learn about our ancestry
C. To learn about evolution
D. To have a better understanding of
life
OkScience.com
Page
1
Answer:
God loves u
Explanation:
read the bible pray everyday
World wide what area best describes where most volcanoes are located
a.Antartic Circle
b.Ring of Fire
c.Mid Alantic rift zone
d.Mediterranean
I need help on this one asap and thank you
How can the length of day affect temperatures on Earth?
Answer:
The longer the day the solar radiation is absorbed and the higher the temperature.
compare and contrast the rock cycle and the carbon cycle
Answer:
The rock cycle and water cycle overlap with erosion, transporting, and deposition.carbon atoms are used repeatedly on Earth and cycled between the atmosphere, hydrosphere, biosphere, and lithosphere through processes
Explanation:
The rock cycle and the carbon cycle are two different types of natural cycles that occur on earth. The difference include components, processes, time scale, human impact, and environmental implications.
What is the difference between rock cycle and carbon cycle?The rock cycle is a continuous process that occurs over millions of years, during which rocks are transformed from one type to another. There are three major types of rocks: igneous, sedimentary, and metamorphic. Each type of rock is formed through a different process.
The carbon cycle is the process by which carbon is cycled between the atmosphere, oceans, and living organisms. Carbon is essential for life, and is found in all living organisms. The carbon cycle is driven by photosynthesis, respiration, and decomposition.
During photosynthesis, plants absorb carbon dioxide from the atmosphere and use it to build organic molecules. These organic molecules are then consumed by other organisms, and carbon is transferred up the food chain.
When organisms die, their bodies are decomposed by bacteria and fungi, which release carbon dioxide back into the atmosphere.
In addition, carbon is stored in fossil fuels such as coal, oil, and natural gas, which are formed from the remains of ancient plants and animals. When these fuels are burned, carbon is released into the atmosphere, contributing to global warming.
Learn more about Rock cycle here:
https://brainly.com/question/29767269
#SPJ3
What is region x on the above wave called? I give brailiest!!!!!
Answer:
rarefaction
Explanation:
along the same direction the wave travels
Explain how diffusion restored homeostasis during the dialysis treatment
Answer:
If the patient's blood is too low in ions, they will diffuse from the dialysis fluid into the blood, restoring the ideal level in the blood. If the patient's blood is too high in ions, the excess ions will diffuse from the blood to the dialysis fluid.
Explanation:
I may be wrong but yeh
If the patient's blood is too low in ions, they will diffuse from the dialysis fluid into the blood, restoring the ideal level in the blood. If the patient's blood is too high in ions, the excess ions will diffuse from the blood to the dialysis fluid.
What do you mean by dialysis?Dialysis is a procedure to remove waste products and excess fluid from the blood when the kidneys stop working properly. It often involves diverting blood to a machine to be cleaned.
Moreover, hemodialysis is most often done at a special dialysis center. You will have about 3 treatments a week. Treatment takes about 3 to 4 hours each time.
In hemodialysis, the wastes and excess water are removed by using an external filter called a dialyzer, which contains a semipermeable membrane.
Learn more about dialysis:
https://brainly.com/question/16026206
#SPJ2
List the planets with few or no moons.
Answer: Mercury and Venus are the only planets without moons.
Explanation: The outer Solar System includes Jupiter, Saturn, Uranus, Neptune and Pluto and the rest of the moons.
In peas, axial flowers are dominant over terminal flowers. What phenotypic ratios would you expect in offspring from a cross between a known heterozygous axial-flowered plant and one whose flowers are terminal?
Answer:
Phenotype:
2/4 = 1/2 = 50% axial-flowered plant (Aa)2/4 = 1/2 = 50% terminal-flowered plant (aa)Phenotypic ratio 1:1
Half of the progeny will be axial-flowered plants (Aa) while the other half will be terminal-flowered plants (aa)
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
enzymes work by ___
a. changing the ph of the solution
b. transforming products
c. making bubbles
d. lowering the activation energy
Answer:
Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily. Reaction coordinate diagram showing the course of a reaction with and without a catalyst. With the catalyst, the activation energy is lower than without.
Which of the following involves only abiotic factors?
A. a large rock being weathered by wind and rain
B. an otter using a stone to break open a sea urchin
C. a spider building a web in the corner of a building
D. a pine tree absorbing light from the Sun
A. This is because neither a rock, wind, or rain is a living organism.
Answer:
A. a large rock being weathered by wind and rain.
I need help on how to fill this in.
4. How does the microscope contribute to your viewing of the Daphnia?
A) It decreases the viewing size of the sample
B) It does not change the viewing size of the sample
C) It increases the viewing size of the sample
Answer:
it increases the viewing size.
Explanation:
Function of microscope is used to enlarge organisms for better look
What type of population monitoring method will be best for monitoring the species
Answer:
Point counts and line-transect distance sampling methods are appropriate method to monitor a population of swallows and tortoises respectively.
Explanation:
GMO technology today is an important part of modern biotechnology and is used, among other things, to give bacteria, plants and animals new properties. This is possible by inserting a gene from, for example, a bacterium, into a plant or animal (transgenes).
The diagram provided represents some steps in a procedure used in the field of biotechnology SC.912.-16.10
This bacterial cell can now be used to produce
A. Insulin that can be used by humans
B. Human genes for enzymes that can be inserted into humans
C. The bacterial gene for insulin that can be inserted into humans
D. Enzymes necessary to treat human diseases
Organisms whose genetic material has been modified are called Genetically modified organisms. The bacteria can be used for the production of Insulin that can be used by humans.
What are GMOs and transgenes?Genetically modified organisms are altered and modified living things like animals, plants, a microorganisms that are modified by the methods of genetic engineering and recombinant DNA technology.
The genetic material that is modified and inserted in the host for the expression of the gene of interest is called a transgene. The genetically modified gene can be inserted in bacteria, plants and animals.
In the diagram gene for the production of human insulin is inserted in the bacterial DNA so the insulin produced can be used for the treatment of diabetic human patients.
Therefore, option A. bacteria cells can be used for the production of Insulin.
Learn more about GMOs and transgene here:
https://brainly.com/question/12278110
Help me plssss ASAP
Describe how having a peanut allergy can affect the human body systems. Provide 3 examples and evidence to match your statement.
i am struggling please help if you are good in science
8. Describe two ways that hormone imbalances can cause reproductive problems in humans.
Answer: Reproductive problems from imbalanced hormones can occur when abnormal levels of estrogen and androgen sex hormones develop, and can cause infertility and other health issues.
A growing plant is shown below.
Which of the following is a plant’s response to gravity that causes the roots to go down and the shoots to grow up?
A. Phototropism.
B.Geotropism
C.Hydrotropism
D.Thigmotropism
Answer:
B. Geotropism
Explanation:
How does temperature affect enzyme activity and why?
Answer:
The increase in temperature in a hot environment will cause the enzymes to denature (deform), the substrate will no longer be able to fit into the enzyme
However, in a cold environment the enzymes abd subtrate will be a lot more slower but they will still work.
PLSSS HELP!!
A. carbon dioxide
B. food
C. living space
D. light
Answer:
a
Explanation:
What is cancer?
Group of answer choices
Division of sex cells
A disease that attaches to your cells
A disease similar to a virus that can infect any cell of the body
Uncontrolled mitosis of cells
Answer:
C
Explanation:
H-C-C-C-0-H
T-O-1
TO
Polor or non polar
If the producers in a food chain contains 250 kcal of energy, how
much energy will be present in the primary consumers? *
PLEASE HELP ASAPP ILL GIVE BRAINLIEST!!!
Answer:
I would expect the mass to be less
A student uses a graphic organizer to show the characteristics of an object in our solar system. Which of the following objects accurately completes the graphic organizer? Drag the correct title into the graphic. 1. Asteroid 2. Comet 3.Moon 4. Planet
Answer:
Comet
I just got this question lol
Please select the word from the list that best fits the definition
"Visualizes where items are located"
A. Interpersonal
B. Musical
C. Body-Kinesthetic
D. Spatial
E. Linguistic
F. Intrapersonal
G. Logical-Mathematical