lewis has three plants. he wants to know if giving a plant water, liquid fertilizer or soap changes the way it grows. the experiment he must do is variable, being able to have plants with and without water, fertilizer and soap.
What is the dependent variable in this experiment what kind of soil is best for plant growth?The dependent variable is plant growth. The variable that affects the dependent variable is called the independent variable. In the plant experiment, the independent variable can be fertilizer – some plants will receive fertilizer, others will not.
With this information, we can conclude that the experiment he must do is variable, being able to have plants with and without water, fertilizer and soap.
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The biomass pyramids for phytoplankton and trees in their respective environments are _______. a. both inverted b. the same c. opposite d. both normal please select the best answer from the choices provided a b c d
The biomass pyramids for phytoplankton and trees in their respective environments are opposite.
In the field of ecology, a biomass pyramid can be described as a pyramid that represents the biomass i.e the amount of living tissue at each trophic level in an ecosystem.
Usually, the biomass of producers is the greatest in an ecosystem and it decreases while going up at each trophic level. Producers such as trees are usually higher in number and have a larger life span. Hence, their biomass is greater than consumers.
However, the case is the opposite in the case of phytoplanktons. If phytoplanktons are the producers in an ecosystem, then the pyramid of biomass is inverted.
This is because phytoplanktons have a short life span and also are very tiny having little mass. As compared to phytoplanktons, the consumers of such an ecosystem have a greater mass and life span. Hence, the pyramid for trees and phytoplanktons is the opposite.
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What structures do all of these cells have in common?
Answer: All have a cytoplasam, plasma membrane, DNA, and ribosomes
This type of endocytosis is the cellular process of engulfing liquid particles by the cell membrane.
The type of endocytosis is the cellular process of engulfing liquid particles by the cell membrane is called pinocytosis
Pinocytosis refers to how living cells consume liquid droplets. Pinocytosis is a type of endocytosis, which is the method by which cells envelop external substances and collect them in special membrane-bound vesicles inside the cell. Pinocytosis occurs when a droplet of the liquid becomes bound, or reabsorbed, on the cell membrane. It then invaginates (creates a pocket) and pinches off to create a vesicle in the cytoplasm instead of a single droplet of liquid traveling inactively through the cell membrane.
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One primary advantage of light microscopy over electron microscopy is that ________.
Phycobiliproteins are complex proteins in cyanobacteria that absorb light energy. There are three kinds of phycobiliprotein molecules used to pass light to chlorophyll: phycoerythrin—responsible for capturing green light, phycocyanin—responsible for capturing orange-red light, and allophycocyanin—responsible for capturing red light.
Since light can only penetrate to certain depths in oceans (figure 1), phycobiliproteins capture the light available and pass it through various pathways of phycobiliproteins until the emitted light is red, which is absorbed by chlorophyll.
Explain the relationship between chlorophyll absorption and wavelength.
In addition to the pigments commonly associated with photosynthesis, a certain photosynthetic species contains two additional pigment types. Justify the claim that this species is better adapted to environmental changes than the cyanobacteria described above. Provide reasoning that explains this claim.
Answer:
since chlorophyll are only able to absorb the red, then the relationship is that the shorter the wavelength the better the chlorophyll will absorb the light for the bacteria. the second species will therefore be able to absorb more different wavelengths of light to turn it into the red light that can then be absorbed, in case the wavelengths of light that reach the bacteria in the ocean changed for some reason
The abdominopelvic quadrants are formed by passing one horizontal and one vertical line through the.
The abdominopelvic quadrants are formed by passing one horizontal and one vertical line through the Umbilicus.
Abdominopelvic cavity :The pelvic cavity and the abdominal cavity together make up the abdominopelvic cavity. The stomach, liver, pancreas, spleen, gallbladder, kidneys, small intestine, and the majority of the large intestine are all located in the abdominal cavity, which is the upper part of the body.
The right upper, right lower, left upper, and left lower quadrants are the four quadrants of the abdomen.
What are the abdominopelvic regions of the body?The umbilical region, hypogastric region, epigastric region, right and left iliac regions, right and left lumbar regions, right and left hypochondriac regions, and umbilical region are the nine abdominopelvic regions.
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why do seeds need to be planted
Without seeds, there would be no plants and Earth would be a barren place that would not support the many forms of life that surround us every day.
Explain Your Reasoning Place an "x" in the appropriate box if the characteristic could describe science, pseudoscience, or both. What might this tell you about the relationship between science and
pseudoscience? Explain your reasoning.
Pseudoscience may sometimes permit personal opinions as evidence.
What is pseudoscience?The term pseudoscience refers to the reliance on logical explanations rather than empiricism to explain the observations in the universe. We know that science is empirical and results must be reproducible.
It is important to emphasize that the difference between science and pseudoscience is that science has an emphasis on empiricism and experiments are the only way that we could validate. Most of the earliest approaches to the study of the universe depended on pseudoscience.
The study of the natural world is the concern of both science and pseudoscience. The explanations in pseudoscience may sound logical but the results generated by science can be tested by others. The explanations of science can be proven false.
Lastly pseudoscience may sometimes permit personal opinions as evidence.
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consider a mutation that alters an organism's traits so that it increases the likelihood of survival and reproduction of the organism. such a mutation may become more common in the population over time due to a process calle
Genetic drift is such type of mutation that may become more common in the population and over time due to the process
Genetic drift is describes as the random fluctuations in the numbers of the gene variants in a population. Genetic drift may takes place when the occurrence of the variant forms of the gene, called as alleles, increases and also decreases by chance over time. These variations is the presence of alleles are to be measured as the changes in allele frequencies. In the population, the different of alleles that create the coat color are equally distributed. for example A disease which comes into the rabbit population and kills the 98 of the rabbits. The only rabbits that are is left are red and grey rabbits, simply by the chance. The genes have thus called “drifted” from 6 alleles to only 2.
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Question 2(Multiple Choice Worth 4 points)
(01.05 MC)
The Midwest United States is dominated by grasslands and food crops. Which abiotic factors of temperate grasslands create rich
soils for farmland?
Low precipitation and distinct seasons
O Distinct summers and winters; high rainfall.
O Mild winters, high precipitation, and lack of trees
1
High precipitation and little seasonal change
The abiotic factors of temperate grasslands that would create rich soils for farmland are distinct summers and winters; high rainfall. That is option B.
What are abiotic factors in an ecosystem?Abiotic factors are those factors that are found in the environment of an ecosystem which are non living and cam influence the activities of organisms inhabiting that ecosystem.
Examples of abiotic factors that affect the temperate grassland include the following:
wind, soil, rocks,water, sun light, air, wind, temperature, lightning, rain, and climate change.
Soil fertility is enhanced in the presence of rainfall and distinct or controlled seasonal changes.
Therefore, the abiotic factors of temperate grasslands that would create rich
soils for farmland are distinct summers and winters; high rainfall.
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Select the correct answer.
Which sentence supports the statement that complex, multicellular organisms are made up of specialized cells that each perform different functions for the body?
A.
Human liver cells make proteins that promote homeostasis that neurons do not.
B.
Different species of bacteria have different shapes and structures to their cells.
C.
The DNA in the cell nucleus of chimpanzees and humans are 98% identical.
D.
Prokaryotes do not have nuclei, but they can still carry out the basic functions of life.
Answer:Option A.
Explanation:
describe the formation of platelets from pluripotent stem cells, including the influence of hormones.
The formation of platelets from pluripotent stem cells, including the influence of hormones.
Pluripotent stem cells form are the cells that can form all the cells of the body including ectoderm, mesoderm and endoderm but not the extra-embryonic structures like placenta.
Platelets are formed by a precursor cell called megakaryocyte which are present in the bone marrow. It is actually present in the kidney in the form of myeloid stem cells which forms the megakaryoblast which transforms into megakaryocytes.
Thousands of plateletes are formed by the megakarocytes. Thrombopoietin is the hormone which regulates plateletes formation.
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Why does a prokaryotic cell have a cell wall
Answer:
Most prokaryotes have a cell wall outside the plasma membrane. The cell wall functions as a protective layer, and it is responsible for the organism’s shape. Some bacterial species have a capsule outside the cell wall.
Explanation:
Explain why it's advantageous to have several different organ systems instead of one large system to handle all of the human body's functions.
Answer:
Explanation:
Just as organs in an organ system work together to accomplish their task, so the different organ systems also cooperate to keep the body running. The respiratory system, and the circulatory system work closely together to deliver oxygen to cells and to get rid of carbon dioxide the cells produce.
How many moles of iron will be made from 13.54 moles of carbon?
Answer:
0.01790670606142 that's your answer
Conditions in the body's immediate environment
Question 2 options:
Homeostasis
Climate
Electromagnetic Field
Pathogen
Answer:
Climate and Pathogen
Explanation:
Climate and pathogen are conditions in the body's immediate environment
Which policy design will BEST ensure that brine shrimp will continue to live in the Great Salt Lake?
The Marine Protection, Research, and San.ctuaries Act is the legal framework that will most effectively guarantee that brine shrimp will continue to exist in the Great Salt Lake.
Describe a policy:This is referred to as a plan or set of rules that are established by people or organizations in order to accomplish long-term objectives.
By guaranteeing that there is no population from diverse sources, the Marine Protection, Research, and San/ctuaries Act was established to safeguard the marine environment.
The brine shri/mp, a representative of an organism that lives in the salt\ water environment, may migrate from the Great Salt Lake to more suitable locations as it becomes contaminated.
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IV - amount of water
DV - Rate of photosynthesis
What’s the hypothesis
Answer:
[tex]H_{0}[/tex]: The amount of water will have no effect on the rate of photosynthesis.
[tex]H_{1}[/tex]: A larger amount of water will increase the rate of photosynthesis.
[tex]H_{0}[/tex] means null hypothesis, a hypothesis where the independent variable, in this case, the amount of water, has no effect on the dependent variable.
prions are infectious particles that can cause normal proteins to assume a misfolded shape. when the proteins assume an abnormal three- dimensional shape, they:
Prions are infectious particles that can cause normal proteins to assume a misfolded shape and when the proteins assume an abnormal 3D shape, they lose their functions.
What is protein fold?After synthesis, proteins are finally folded into specific 3D structures, which is fundamental to carrying out their functions in the cells.
In conclusion, prions are infectious particles that can cause normal proteins to assume a misfolded shape and when the proteins assume an abnormal 3D shape, they lose their functions.
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american society of hematology 2020 guidelines for management of venous thromboembolism: treatment of deep vein thrombosis and pulmonary embolism
Deep vein thrombosis (DVT), pulmonary embolism (PE), and other types of venous thromboembolism (VTE) affect 1 to 2 people per 1000 people yearly, or 300 000 to 600 000 cases in the United States.
Strong recommendations include using thrombolytic therapy for patients with PE and hemodynamic compromise, choosing an INR range of 2.0 to 3.0 for patients with VTE who use a vitamin K antagonist (VKA) for secondary prevention, and using indefinite anticoagulation for patients with recurrent unprovoked VTE. For uncomplicated DVT and PE at low risk for complications, conditional recommendations include the preference for home treatment over hospital-based treatment, and the preference for direct oral anticoagulants over VKA for primary treatment of VTE.
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the measurement of 17-ketosteroids (17-kss) in urine is performed to assess primarily which organ(s)?
The measurement of 17-ketosteroids (17-kss) in urine is performed to assess primarily the Adrenal Gland.
Adrenal Gland- The suprarenal glands, commonly known as the small, triangular-shaped adrenal glands, are situated on top of both kidneys. Hormones generated by our adrenal glands are responsible for regulating several vital bodily functions, including our immune system, blood pressure, stress response, metabolism, and other vital functions.
Hormones- Hormonal substances serve as messenger molecules in the body. They are produced in one part of the body and then circulate to other parts, where they assist in controlling the activity of cells and organs. For instance, the hormone insulin is produced by pancreatic beta cells.
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An increase in the membrane permeability for a solute will result in an increase in the driving force for diffusion of that solute through the membrane. True or false?.
An increase in the membrane permeability for a solute will result in an increase in the driving force for diffusion of that solute through the membrane. This statement is TRUE.
Surface area and porosity/permeability are the two variables that are most relevant to diffusion via a membrane. Slower diffusion will result from a membrane with less permeability or less surface area, which will obstruct molecule motion. More permeable cells can withstand cold and freezing more easily, but they could also become dehydrated. Living cells are suspended in an aqueous solution, and as the cells move through the solution, ice crystals begin to form in the solution around them, increasing the concentration of solutes outside the cells.
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a procedure that attempts to obstruce the blood flow to a maligant tumor would be in what root operation for icd 10 pcs
According to ICD- 10 PCS root operations that alter the diameter/route of a tubular body part will be used to obstruct the blood flow to a malignant tumor. This is called occlusion.
Occlusion involves completely closing an orifice or the lumen of a tubular body part. It can include intraluminal or extraluminal devices. Here, any division of the body part prior to the procedure is included. For example, Fallopian tube ligation, tying off hemorrhoids, LIGATION of the inferior vena cava.
Malignant tumors have cells that grow uncontrollably and spread locally and/or to distant sites. Malignant tumors are cancerous (ie, they invade other sites). They spread to distant sites via the bloodstream or the lymphatic system. This spread is called metastasis.
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In the whole-mantle convection model, what feature balances the deeply descending lithosphere by transporting hot material toward the surface?.
In the whole-mantle convection model, Mantle Plumes balances the deeply descending lithosphere by transporting hot material toward the surface
entire-mantle convection model states that cold, oceanic lithosphere descends into the mantle. warm mantle plumes delivery heat closer to the surface which offers downward arm of convective waftMantle Plumes is hot spots form with the aid of warm, strong fabric growing from narrow jetsconvection occurs when the extra energetic debris flow from the warmer region to the cooler region and take their warmness power with them alternatively a present day due to the rising of heated fluid and sinking of cooled fluid is called Convection modernTo know more about Whole-mantle convection model visit : https://brainly.com/question/28444350
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Match the following vocabulary terms to their correct definitions.
Does NOT contain carbon.
3 trials of doing the egg drop with these materials: tape measure tape, masking cotton swabs eggs, raw cups balloons cotton balls newspaper – or magazines tissues
There are many constraints you can put on your egg drop challenge. Size, weight, materials, use of parachutes , the materials are tape measure tape.
What are the major components of an egg ?Some of the components of egg include the shell is a symmetrical, oval shape, seamless texture, and their lightweight, fragile made up of Calcium Carbonate (CaCO3), Semipermeable Pores which allow carbon dioxide pass out of the shell, exchange of gases occur.
The Bloom of shell is porous shield for protection, the Cuticle is a natural protective coating of the entire shell. second component are inner and outer membrane which is a thin, amino-acid rich layers provide protection.
The outer membrane is translucent, film-like gel like structure, inner egg membrane is the second translucent protein barrier, outer membrane adheres to the eggshell, the inner membrane surrounds the albumen of the egg.
Albumen or egg white mainly provide protection of the yolk as yolk is the figurative center of a healthy egg, serve as a shield to the yolk from movement and damage.
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the most abundant protein in the human body is (fill in the blank) ; it provides (fill in the blank). quizlet
Collagen is the most abundant protein in the human body.
Collagen is an essential component of all of our body's connective tissues. Our bones, skin, hair, joints, and other tissues all contain collagen. The skin may move, stretch, and recoil into shape with the help of collagen. The body contains collagen, which holds the cells together.
Without collagen, the body would disintegrate into nothing. A crucial structural protein of the numerous connective tissues of animals is collagen. Mammals produce a lot of protein, which accounts for 25 to 35 percent of the protein in the entire body.
Most collagen is found as elongated fibrils in fibrous tissues such tendons, ligaments, and skin.
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you can tell the age of a yeast cell by group of answer choices counting scars seeing whether it will grow on melibiose studying its flocculation total cell count
You can tell the age of a yeast cell by (a) counting scars.
Yeast is a unicellular eukaryotic organism. It belongs to the kingdom Fungi. It is primarily used in baking, cooking and in alcohol industries as well. There are various strains of yeast and the most widely used one is Saccharomyces cerevisiae, also called the baker's or the brewer's yeast.
Scars on the yeast are actually the bud scars formed due to budding. Budding is the process by which the yeast reproduces and gives rise to its offspring. Hence every time a daughter bud pinches off from the yeast cell, a scar is formed.
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218k reber, a burki, n vizcaino reves, et al.: biomechanical evaluation of the stabilizing function of the atlantoaxial ligaments under shear loading: a canine cadaveric study. vet surg. 42:918-923 2013 24117887
ROM grew similarly and gradually during the test. The transsection of the alar ligaments resulted in the greatest rise.
To stabilise the atlantoaxial joint under shear pressure, the alar ligaments appear to be the most significant ligamentous structures.
What is Biomechanical evaluation ?The evaluation of your body's full kinetic chain, which includes your legs, hips, and spine, is part of the biomechanical process. The angular relationships, range of motion, and dynamic interactions are all included.
An evaluation of the lower limbs' anatomy, alignment, strengths, and weaknesses is part of the biomechanical process. The foot, which carries our body weight as we walk every day, is a complicated structure made up of 28 separate bones, 214 ligaments, and 38 muscles.Learn more about Biomechanical evaluation here:
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da luz, protásio l., et al. the effect of red wine on experimental atherosclerosis: lipid-independent protection. experimental and molecular pathology 65.3 (1999): 150-159.
To examine the impact of red wine on atherosclerosis, New Zealand rabbits were given a 1% cholesterol weight-reduction plan for 12 weeks and compared to animals that received the weight loss program plus either red wine or nonalcoholic wine merchandise (NAWP). Diet brought about a marked will increase in whole and LDL cholesterol, yet no tremendous modifications in HDL and triglyceride concentrations occurred. In the manage group, plaque vicinity used to be sixty-nine +/- 9% of the aortic surface, whilst in the wine and NAWP agencies, it was only 38 +/- 9 and forty-seven +/- 12%, respectively (P < 0.0001). The average intima/media thickness ratio was once 0.60 +/- 0.2 in manage animals, 0.14 +/- 0.09 in the wine group, and 0.39 +/- 0.19 in the NAWP team (P < 0.0001). No widespread variations have been referred to in LDL oxidizability among treatments. Thus, each red wine and NAWP can prevent plaque formation in hypercholesterolemic rabbits regardless of the extensive will increase in LDL. We speculate that the anti-platelet effect, blockade of expression of endothelial cellphone adhesion molecules, and/or NO stimulation with the aid of red wine flavonoids are possible explanations.
Wine is an alcoholic drink typically made from fermented grapes. Yeast consumes the sugar in the grapes and converts it to ethanol and carbon dioxide, releasing warmth in the process.
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