Lab: Interdependence of Organisms
Interdependence Of Organisms
Question Being Answered:
How can the presence of one species benefit another in the same ecosystem?
Hypothesis:
If plants grow in soil that contains worms the plants growth will be greater because worms are able to help decompose organic matter and help distribute it through the soil in a form plants are able to use.
Process Of Lab:
In this lab you will grow two different groups of plants. Group A is considered the experimental group which will grow in soil with worms, Group B is considered the control group which will grow in soil without worms. After the plants grow you have to measure the plant growth for both groups and compare them.
Independent & Dependent
Independent Variable: Presence Of Worms
Dependent Variable: Plant Growth
Safety Procedure
Be sure to follow the safety procedure which means to
Wear safety goggles and lab gown while doing the experiment
Keep lab behavior purposeful
Look over the soil contents and make sure to follow warnings provided on any equipment
Wash hands and lab equipment once done with experiment
Treat living organisms with respect and provide proper care
Report any accidents that happen in the lab to your teacher
Lab Procedure
Step 1: Gather Materials
Two trays that are 10 cm 4’ deep
Potting soil
Lima bean seeds which need to be soaked overnight
Location with sunlight or growth lights
Worms
Graduated cylinder
Water
Black marker
Ruler with metric markings
Step 2: Prepare Two Trays Of Lima Bean Plants
Label the trays Control Group and Experimental Group
Add approximately 6-7 cm of soil to each tray
Plant 6 lima bean seeds in each tray being 2 cm deep and label the plants 1-6
Step 3: Give The Plants Water And Light During Sprouting Time
Keep the environments for both groups identical
Water all the plants following the watering schedule that was recommended on the seed packaging
Use the graduated cylinder to ensure the same amount of water is being given to both groups
Make sure all plants get the same amount of light
Step 4: Measure The Heights Of The Plants At The End Of Week 1
Measure the height of all twelve plants to the nearest cm. If a plant dies mark an x on the data table for that plant and write it in your notes
Use a calculator to find the average heights of the living plants in each groups
Calculate the difference in those average heights by subtracting the average height of the plants in the control group. Use this difference as a basis for comparison
Record measurement observations in your notes and the health of the plants such as leaf colors and size, wilting, unusual growth, brown spots, and any other marks you see
Step 5: Add Six Worms To The Soil Of The Experimental Group Of Plants
Write descriptive notes about the condition of the worms in your notes
Step 6: Measure The Heights Of The Plants At The End Of The Week 3
Repeat step 4
Step 7: Measure The Heights Of The Plants At The End Of Week 5
Repeat step 4
Step 8: Check The Health Of The Worms At The End Of The Study
Are the worms still alive?
Do they all seem healthy?
Have they changed in any way? If so list the ways changed
Are there any new worms
Be sure to write descriptive notes about their conditions in your notes
Step 9: Dispose Of All Material According To The Directions From Your Teacher
Week 1 (Before Adding Worms)
Week 3
Week 5
Plant 1
10cm
22cm
49cm
Plant 2
9cm
23cm
47cm
Plant 3
8cm
20cm
49cm
Plant 4
9cm
22cm
50cm
Plant 5
10cm
22cm
47cm
Plant 6
8cm
23cm
52cm
Control Group Average
9cm
22cm
49cm
Plant 1
8cm
24cm
50cm
Plant 2
9cm
28cm
60cm
Plant 3
8cm
26cm
49cm
Plant 4
8cm
25cm
53cm
Plant 5
8cm
27cm
58cm
Plant 6
7cm
26cm
60cm
Experimental Group Average
8cm
26cm
55cm
Difference In Average Heights
-1cm
4cm
6cm
Table answers go from left to right in the order I put
Answer:
Control GroupHeight (cm)Week 1 (beforeadding worms)Week 3Week 5Plant 110cm22cm49cmPlant 29cm23cm47cmPlant 38cm20cm49Plant 49cm22cm50cmPlant 510cm22cm47cmPlant 68cm23cm52cmControl Group Average9cm22cm49cmExperimental GroupHeight (cm)Week 1 (beforeadding worms)Week 3Week 5Plant 18cm24cm50cmPlant 29cm28cm60cmPlant 38cm26cm49cmPlant 48cm25cm53cmPlant 58cm27cm58cmPlant 67cm26cm60cmExperimental Group Average8cm26cm55cmDifference in Averages:(Experimental - Control)-1cm4cm6cm
Explanation:
read it carefully u might get it - (answers)
How can friction be lessened?
A). Add less force
B). Add more force
C). increase the speed
D). add wheels
PLEASE ANSWER ASAP
Put in order the interactions of the question
Answer:
First off it would 'attack' the immune system, the virus would attach itself to healthy cells, then continue to move through your body - your bodies first response is always going to be your immune system - it's going to fight the foreign visitor aka the virus. The virus will then move down towards your respiratory system. And given the symptoms that you may experience whilst your body is fighting the virus is how it may work with other systems (these two being the main ones) for example; diarrhea, nausea/vomiting, headaches, sore throat, etc. And it will also depend on the patients history. Hope this helps.
Explanation:
a chemical reaction that removes electrons from an atom is call a blank reaction
Answer:
answer is b: oxidation reaction
Answer:
oxidation reaction
Explanation:
The MAP kinase pathway is activated by ligand binding to a transmembrane receptor, which switches Ras on via GEF (Guanine nucleotide Exchange Factor) that counteracts GAP (GTPase Activating Protein) activity. Ras-GTP in turn activates the downstream signaling intermediates (kinases), which are activated by sequential phosphorylation. Which drug CANNOT be used to target cancer cells that have elevated receptor activation
Answer:
Inhibitor molecules that interfere with GAP activity
Explanation:
The mitogen-activated protein kinase (MAPK) is a pathway composed of proteins that amplify and integrate signals from receptors localized on the surface of cells and trigger the transcription of specific genes in the nucleus of the cell. In eukaryotic organisms, the MAPK pathway is known to control critical cellular processes such as, for example, cell proliferation, cell differentiation, cell death, etc. RAS proteins are GTPases localized to the plasma membrane involved in MAPK signaling. Moreover, the GTPase activating proteins such as RasGAP (Ras GTPase activating protein) regulate Ras-GTP bound by promoting GTP hydrolysis. It has been shown that RasGAP expression is down-regulated in different types of cancer. In this regard, it has been proposed that the interference of GAP activity should result in an enhanced Ras protein activation in cancer cells, thereby initiating tumorigenesis by inducing, for example, uncontrolled cell proliferation.
What is one example of the many
things that is necessary for a stable
ecosystem?
A. Equal number of predators to prey
B. Energy Capture
C. A high ratio of omnivores
In genetics, what does a genotype of Hh signify?
Answer:
In genetics, Hh means a heterozygote.
Explanation:
Usually, in genetics, H would be the dominant, and h would be the recessive trait. HH is usually dominant, and hh would be recessive. So, Hh would mean a heterozygote. In a heterozygote, this would mean that the recessive trait is in the genotype, but the dominant trait would still take over. This also means that sometimes, the recessive trait can be shown along with the dominant. This can be possible through co-dominance, and incomplete dominance. Hope this helps!
Answer:
CORRECT (SELECTED)
Heterozygous; one dominant allele and one recessive allele
Explanation:
A heterozygous individual (Hh), also known as a carrier, has a genotype with one dominant allele (H) and one recessive allele (h).
A population of drosophila flies lives in a forest and has variation in their egg-laying behavior. The majority of the flies have the trait of laying eggs in the rotting bark of trees. A small percentage of the flies have the trait of laying eggs in bark that is dampened by sap. The drosophila population moves into a new forested area that is drier, where rotting bark is harder to find than sap. How will the population change over several generations
Answer:
It will contain a larger proportion of flies that lay eggs in sap because the trait results in a higher chance of reproducing successfully and passing on the gene
Explanation:
Over the years the population of flies that lays egg in the rotten bark will reduce this is because of the low chance of reproducing and there will be an increase in the population of flies that lays egg in the sap because the flies have a higher chance of reproducing successfully leading to an increase in the population and the ability of the gene to be passed on successfully to their offspring in next generation.
Which scientist devised tests that helped confirm that bacteria and other microorganisms cause a variety of diseases?
Robert Koch
Anton van Leeuwenhoek
Louis Pasteur
Alexander Fleming
Answer:
A. Robert Koch
Explanation:
I got a 100 on the pre-test (Edgen2021)
Robert Koch made tests that helped confirm that bacteria and other microorganisms cause a variety of diseases.
Who was Robert Koch?Robert Koch was a scientist that work to identify many pathogenic microorganisms (e.g., bacteria and fungi).
Nowadays, Robert Koch is considered the father of modern bacteriology. Robert Koch identified many pathogenic microorganisms including Mycobacterium tuberculosis (tuberculosis) and Vibrio cholera (cholera).In conclusion, Robert Koch made tests that helped confirm that bacteria and other microorganisms cause a variety of diseases.
Learn more about Robert Koch here:
https://brainly.com/question/1136589
Read the passage. Then, use what you know about how populations affect one another during ecological succession to explain what happens on an empty lot.
Imagine what happens in an empty lot that has been cleared of all living things. As in a garden that is no longer planted, only soil remains. Weeds begin to grow in the soil. At first, only plants that need full sun to sprout grow there. But over time, these plants grow taller and shade the ground. Then, a different kind of plant begins to grow there, one that grows only in shady areas. Eventually, the lot is covered in mostly plants that sprout in shade.
Please help!
A pair of identical twins develop leukemias, where immature white blood cells proliferate uncontrollably. In each case, the cancer cells analyzed from identical twins displayed an identical chromosomal mutation and this critical mutation was not found in the twins normal cells. The twins developed leukemia at different times in their lives. What is the best explanation for the origin of this chromosomal mutation
Answer:
The chromosomal rearrangement resulted from a rare somatic mutational event that occurred in utero
Explanation:
Leukemia is a progressive type of cancer where immature white blood cells (leukocytes) proliferate uncontrollably. Next-generation sequencing (NGS) technologies have shown that somatic mutations are relatively common in different types of leukemia such as, for example, acute myeloid leukemia (AML). Moreover, identical twins are developed from one fertilized egg (ovum) that splits and develops into two identical individuals that share all of their genes (i.e., they have exactly the same genetic information). In this case, it is expected that leukemogenesis was initiated in the utero by the occurrence of a chromosomal rearrangement and proceeded early during development as distinct clonalities. In addition, the fact that identical twins developed leukemia at different times in their lives also indicates that this malignancy wasn't caused by only one mutation, but instead it was triggered by multiple mutational events (i.e., leukemia is a multistep cancer caused by secondary genetic changes).
which supports the theory that some mountains were once at the bottom of the ocean?
A.there are underwater mountains on the ocean floor today
B.freshwater rivers flow to the ocean
C. fossils of marine organisms are found at the top of some mountains D both mountains and Ocean Floors have similar mineral in their Rock
Answer:
★ C. fossils of marine organisms are found at the top of some mountains
Explanation:
Hope you have a great day :)
1. Which of the statements below best describe marketing?
A. Bringing products to the costumers' knowledge and attention
B. Bringing products to food preparation
C. Bringing products to factory owners
D. Bringing products to the packaging
2. The net income amount or money received from selling preserved foods is called
B. Dividend
C. Cost
D. Capital
A. Profit
3. It contains important information about the product like brand, address, date of
manufacture and expiration date, list of ingredients, and nutrition facts.
A. Labels B. Marketing C. Packaging D. Recording
4. This refers to a medium that disseminates printed matter/materials for the
advertisement of preserved food products like newspapers, magazines brochures
flyers, and other printed materials.
A. Product display
B. Print Media
C. Food packaging
D. Blogging
Answer:
1. A
2. D
3. A
4. B
This is the answers
Please answer fast ASAP I give you brainliest
Describe the relationship you would expect between depth and light penetration
Answer:The intensity of sunlight decreases rapidly with depth. The depth of the water not only affects the colors of light that are noticeable underwater, it also affects the intensity, or amount of light. Within the first 10 m, water absorbs more than 50 percent of the visible light energy
Need answer please to number 16 please
What are the benefits of being a poisonous plant in
the Rain Forest
Answer:
being poisonous plant helt a plant to not b eaten by pests
Explanation:
plants grow well without being affected
What are the possible blood types of children in the following families?
(a) Type A mother, Type A father
(b) Type A mother, Type AB father
(c) Type AB mother, Type AB father
(d) Type A mother, Type B father
Answer:
a) A and O
b) A , B and AB
c) A, B and AB
d) A, B , O and AB
Explanation:
The most complex organic
compounds are the_____.
Answer:
i-propyl cyanide
Explanation:
But i-propyl cyanide is the largest and most complex organic molecule found to date - and the only one to share the branched atomic backbone of amino acids. "The idea is to know whether the elements that are necessary for life to occur… can be found in other places in our galaxy."
Where does the energy come from to make ATP in the light reactions?
Answer:
Figure 19.2. The Light Reactions of Photosynthesis. Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.
Explanation:
thank me later
A measure is 5.6 meters off (different from) the target value of 112 meters. Calculate the percent error.
Answer:
The correct answer is - 5.
Explanation:
The percentage of the error in any experiment can be calculated by the ratio difference between the target value and the observed value over the target value into 100.
Percentage error = {|Vtrue - Vobserved|/Vtrue}× 100
Solution:
percentage error = (5.6/112)*100
= 0.05*100
= 5
Thus, the correct answer is - 5.
what is convection heat
Heat convection is a mode of heat transfer by the mass motion of a fluid such as air. Heat convection occurs to the surface of an object where the surrounding fluid of object is heated and moved energy away from the source of heat.
The assistant strength and conditioning coach for a small college works with athletes in all sports. With only two lifting platforms and four squat racks, space is limited and training sessions are chaotic. Morning and early afternoon hours are the low-activity times of the day. At 3 p.m., student-athletes fill the room beyond capacity, making individualized instruction and room supervision difficult. What steps should the assistant strength and conditioning coach take to properly address these concerns?
Answer:
The solution to these question can be defined as follows:
Explanation:
Both students including athletes who undertake the program can be assigned slots relating to some period the classical or athlete should report completing their practice. The slots aren't allowed to continue.
They have a structured exercise template for each person, that helps for easy student or athlete monitoring, based on their skill.
This can be encouraged to students and teachers to attend daily and midday meetings.
The power in our homes and buildings cycles at a frequency of 60Hz. If someone accidentally dropped a power line into a holding tank for frogs their muscles would immediately become stiff. This is because the high frequency stimuli is causing:_______
a. rigor mortis.
b. tetanus.
c. fatigue.
Answer:
a. rigor mortis.
Explanation:
Electricity refers to the power generated from various power sources or power plants such as hydroelectric, wind turbine, solar, nuclear, etc.
Generally, the power supplied to homes, offices and buildings cycles at a frequency of 60 Hertz or 50 Hertz depending on the parameters chosen in countries. If a power line is dropped accidentally into a holding tank for frogs, it would immediately cause their muscles to become stiff due to the current flowing through the power line i.e because the power line is energized and has electrons moving across its terminals. This stiffness is because the high frequency stimuli is causing rigor mortis.
A metamorphic rock is a rock that has been
Answer:
The answer is B.Changed from it's original state.
Answer: B. Changed from its original state
Explanation: Metamorphic rocks are rocks that change form.
how energy transformations involved in photosynthesis are related to energy transformation involved in cellular respiration
Answer:
Photosynthesis is the process by which energy is converted to chemical energy in plant cells. In cellular respiration plants use the chemical energy stored during photosynthesis in basic life processes. During both photosynthesis and cellular respiration, energy is converted.
Explanation:
MARK AS BRAINLIEST!!
list the ramsar sites in kzn
Answer:
The Republic of South Africa has designated three more sites to the List of Wetlands of International Importance: Ndumo Game Reserve, the Seekoeivlei Nature Reserve, and the Natal Drakensberg Park.
Explanation:
Hope it helped..!
: D
The diagram below shows a stack of rock layers. These layers have not changed position since they formed. Examine the diagram and answer the question that follows. If the age of Layer 4 is 400 million years and the age of Layer 1 is 500 million years, then the age of Layer 3 is A. older than 500 million years. B. between 400 million and 500 million years. C. 500 million years. D. younger than 400 million years.
Answer:
B. between 400 million and 500 million years
Explanation:
Process of elimination
Answer: Answer is B, Younger than 400 million years
Explanation:
The age of rock layers in a stack reflects the order in which they were deposited—the lower layers were laid down first, and then the upper layers were laid on top of them. So, the lower layers and fossils they contain are older than the upper layers and fossils. This is known as the principle of superposition.
In this example, Layer 1 was deposited first, then Layer 2, Layer 3, Layer 4, and Layer 5. Layer 1 is the oldest, and the layers get younger as you move up through the stack.
If the age of a particular layer is known, then the relative age of other layers can be determined. In this example, Layer 4 is 400 million years old. This means that the layer above it is younger than 400 million years and the layers below it are older than 400 million years. Layer 1 is 500 million years old. This means that layers above it are younger than 500 million years.
Layer 5 is above Layer 4, so it must be younger than 400 million years.
Turtiple choice worth 3 points)
Examine the following diagram. Which of the following layers is or are older than layer D?
D
А
Public Domain
A only
C only
A and B
A, B, and C
Which action could humans take to slow the rate of
global warming?
Answer:
C) Use alternate sources of energy such as wind
Explanation:
Where possible, we can switch to renewable sources of energy (such as solar and wind energy) to power our homes and buildings, thus emitting far less heat-trapping gases into the atmosphere.
how do they measure global climate change
Answer:
Hello There!!
Explanation:
The answer is=>It is mosly measured using the average surface temperature if the planet/Earth.
hope this helps,have a great day!!
~Pinky~
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Climate change is most commonly measured using the average surface temperature of the planet.
ThanksHope it helps.