Answer:
Explanation:
i need a we
Step 6: Measure the Heights of the Plants at the End of Week 3 Use a calculator to compute the average heights of the plants in each group to the nearest centimeter. Week 3 Average Heights Control Group: cm Exper. Group: cm
Answer:
End of week 3
Control: 22cm
Experimental: 26cm
Explanation:
Answer:
Control: 22 cm
Experimental: 26 cm
Difference: 4 cm
Explanation:
Control and Experimental from observation reasonings and calculations, however, the difference is found by subtracting the average height of the control plants (22cm) from the average height of the experimental plants (26cm). So it would look like 26 - 22 = 4.
Once nutrients are broken down by the Digestive system, they are absorbed and transported around the body through the _____________ system. *
Answer:
Circulatory
Explanation:
Name the stage of meiosis
to >
O A Cytokinesis
OB) Anaphase II
OC) Metaphase II
OD) Prophase II
OE) Telophase II
Before there was evidence from rocks and fossils, many scientists theorized that the continents were once joined together. Using only maps, these scientists observed that - *
Answer:
Pangea
Explanation:
scientist observed that due to earthquakes and natural dissasters the continent Pangea was seperated
Alfred Wegener proposed the theory of continental drift in 1915, which suggested that continents were once connected in a supercontinent called Pangaea. His theory was supported by the fit of continental edges, fossil evidence, and paleoclimate data, and this concept is a precursor to the modern understanding of plate tectonics.
Explanation:The concept of continental drift was first proposed by Alfred Wegener in 1915, theorizing that the continents were once joined together. Wegener's hypothesis was derived from observing the congruency of continental shores, fossil correlations, and similarities in living species across oceans, all suggesting the existence of a supercontinent named Pangaea. Despite initially lacking a mechanism to explain the movement of continents and facing skepticism, evidence such as matching fossils, paleoclimate data, and geological formations across continents strengthened his theory, which later evolved into the widely accepted plate tectonics theory.
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Which chamber of the heart sends blood To the lungs?
C
)
left atrium
O
right atrium
o
right ventricle
o
left ventricle
Answer:
The chamber that sends blood to the lungs is C) the right ventricle
Explanation:
The right ventricle pumps oxygen-poor blood into the pulmonary artery which in turn, sends that blood into the lungs.
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~Luna
A ____________________ is a sudden eruption of magnetic energy released on or near the surface of the sun, usually associated with sunspots and accompanied by bursts of electromagnetic radiation and particles.
Answer:
solar flare
Explanation:
Answer:
C) solar flare
Explanation:
How is the skin the body's first line of defense?
a. It secretes oil, which washes away pathogens.
b. It secretes sweat, which raises the pH of the skin and kills pathogens.
c. It forms a physical barrier to keep pathogens out.
d. It traps pathogens in the many flagella that line mucous membranes.
Answer:
b. It secretes sweat, which raises the pH of the skin and kills pathogens is the correct answer.
Explanation:
The first line of defense such as skin, mucus, tears, urine flow protects from the pathogens and prepare to protect the body from germs and infections.
Skin secretes swear that raise the pH makes the sweat acidic and then the sweat present in the skin provide protection to the body by killing the unwanted pathogens as some pathogen are not able to survive in acidic conditions.
Skin secretes sweat that contains a chemical dermcidin that breaks the bacteria and kills the pathogens.
Here is my biology test, (I'm not even sure if this is biology) I'll only post pictures and I'll do a second post once I get more points. I also bunched up a bunch of them to save time and picture space.
Answer and Explanation:
1) In the position "P" the sun´s solar altitude would be the highest in Rockville, Maryland. At this point, it is summer in the northern hemisphere, and the sun is heating directly to the cancer tropic. Maryland is near this tropic, so position"P" could be considered the season in which the sun would be highest in relation to this point.
2) The earth at position V is experiencing winter in the northern hemisphere because the angle of sunlight is more indirect in this hemisphere. It is summer in the hemisphere that is inclined towards the sun and winter in the other hemisphere which is inclined far from the Sun. The hemisphere that is inclined towards the Sun is hotter because sunlight travels more directly to the Earth's surface and less light is scattered through the atmosphere. This means that whenever it is summer in the southern hemisphere, it is winter in the northern hemisphere. The hemisphere that is inclined towards the Sun has longer days and shorter nights. That is why during the summer the days are longer than during the winter.
3) In position V the sun´s path through the sky would be the highest in Australia. At this point, it is summer in the southern hemisphere, which means that the sun is heating the earth directly in the Capricorn tropic. This tropic passes straight through Australia, so this is the position in which the sun would be the highest in this country.
4) In positions U and D the earth experiences 12 hours of daylight and 12 hours of darkness. At these two points, the sun´s rays reach the equator at approximately the same angle every day. This is why there are no seasons at this latitude. Every single day of the year the equator receives about 12 hours of sunlight and 12 hours of darkness.
Which of these planets has water ice near its poles?
Answer:
Mars
Explanation:
The Deep Freeze: Ice on Mars. Like Earth, Mars has ice caps at its poles. Water reaches the poles as vapor and is frozen into thin layers that build up thick deposits. Mixed with this water is dust picked up by the wind, so the caps have bright and dark layers of "clean" and "dirty" ice.
Final answer:
Several planetary bodies have water ice at their poles, including Mars and Mercury, with Mars having subsurface water and Mercury having ice in polar craters. Jupiter's moon Europa and Saturn's moon Enceladus also show evidence of liquid water beneath their surfaces, making them key interests in astrobiology.
Explanation:
Presence of Water Ice on Planetary Bodies
Water ice is present near the poles of several planetary bodies within our solar system. Mars, with its historical evidence of liquid water and current traces of subsurface water, is one such planet with water ice at its poles. Surprisingly, even Mercury contains water ice in polar craters, despite its proximity to the Sun. While discussing moons, Europa, one of Jupiter's moons, has a surface with a vast ocean beneath an ice crust, whose gravitational interactions with Jupiter generate heat to maintain liquid water beneath its icy shell. In addition, Saturn's moon, Enceladus, is noteworthy for its geysers that eject water into space, indicating the presence of liquid water. These celestial bodies are of particular interest in the search for habitable environments and the potential for life beyond Earth.
what can you increase that will result in competition among members of a population of a species living the same habitat
Answer:
The population of the species.
Explanation:
This one took a bit of thought, but here is my conclusion.
If there is more population, there is higher demand on resources such as food, water, and shelter. With less to go around, the species will start to compete more for the limited resources, therefore increasing the competition.
Hope this helps!
What is the difference in trophic level efficiency between herbivores and carnivores?
Answer:
herbivores mostly eat plants,While herbivores eat meat.
Hope that was helpful.Thank you!!!
Which is NOT a valid reason why species diversity is economical to humans? A) A diverse set of microbes in waterways can eliminate more pollutants, saving humans the cost of clean up. B) More diverse species of trees in a forest compete less for resources yielding more money for logging industry. C) A diverse population of bacteria attacking the body is much more economical than just one population of bacteria. D) Keeping a diverse set of pollinators on farms allows crops to be pollinated at different times yielding higher crops.
Answer:
C. A diverse population of bacteria attacking the body is much more economical than just one population of bacteria.
Answer:
C. A diverse population of bacteria attacking the body is much more economical than just one population of bacteria.
Explanation:
(b) Identify the independent variable used in the experiment. Identify the difference between the control cells and the experimental cells used in the experiment. Justify the
researchers using a different range of concentrations for FX11 than was used for gossypol,
В
І
у
=
=
Answer:
See explaination
Explanation:
The independent variable used in study are - different concentrations of drug used for treatment.
We basically made use of two groups in the experiment, control and treatment.
In control group cells are only incubated in media without drug.
While in treatment group cells are treated with different concentrations of drugs.
These two groups provide the idea that actually effect of drug on cell proliferation. Control group growth will be taken as 100% . And cell growth in presence of drug will be compared with control group to see he effect of drug on cell proliferation.
Both drugs have different toxicity on cells. Gossypol is highly toxic than Fx11. So lower concentration drug has been used for gossypol and a higher range is used for Fx11 in the experiment.
The independent variable is the concentration of the substances FX11 and gossypol. Control cells aren't exposed to these substances while experimental cells are. Researchers may use a different range of concentrations to study dose-dependent responses or due to different potencies of the substances.
Explanation:Given the nature of your question, the experiment seems to involve the usage of a substance referred to as FX11 and another one called gossypol, being tested in different concentrations on cells. The independent variable in this experiment is likely to be the concentration of FX11 and gossypol, as this is what is being manipulated or changed to monitor effects on the cells.
The difference between control cells and experimental cells lies in how they are treated during the experiment. Control cells would not be exposed to FX11 and gossypol, serving as a baseline to compare the results from the experimental cells that have been exposed to these substances. Therefore, any changes seen in the experimental cells can be attributed to the effect of the substances administered.
As for why the researchers used a different range of concentrations for FX11 than gossypol, it might be because they have different potencies or expected effects, or it could be a way to examine dose-dependent responses across a broader range.
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how is fresh water collected in the rain forest?
Answer:
if you mean how you can gain water in the rainforest?
Kindly, look at below ^_^
Explanation:
The role of rainforests in the water cycle is to add water to the atmosphere through the process of transpiration (in which plants release water from their leaves during photosynthesis). This moisture contributes to the formation of rain clouds, which release the water back onto the rainforest.
Water Basics
The first thing you should do if you're stranded in the wild is find a source of drinkable water. The most obvious sources are streams, rivers and lakes. Animals always know where the water is, so be on the lookout for wildlife or animal tracks. Lush green vegetation is also a sign that water is nearby. Swarming insects may be a hassle, but they also signal that a water source isn't far away. Bird flight paths in the morning or evening can point you in the right direction. Stay on the move until you find a water source. When you pause to rest, use your ears -- rivers can be heard in the quiet woods from great distances. Remember that water always flows downhill, so low-lying areas and valleys are a good bet.
If you find a muddy area, there may be groundwater available. Dig a hole about a foot deep and one foot in diameter and wait. You may be surprised to find that the hole is soon filled with water. This groundwater will be muddy, but straining it through some cloth will clean it up, and it will get you by in the short term. It's crucial to remember that any time you drink found water without purifying it, you're taking a risk.
HOPE THAT ASSESS YOU ...
Engineers are looking for a new material to build the body of an airplane. They agree that the material must be lightweight, but also strong and long-lasting. Above all, the material must maximize the safety of the passengers. Several engineers have developed some initial plans.
Which stage of technological design is described in this passage?
Identify a problem.
Design a solution.
Implement a solution.
Evaluate the solution.
Answer:
Design a solution.
Explanation:
Answer:
design a solution
Explanation:
just did it and got it right :)
Which set of rational numbers is arranged from least to greatest? (4 points)
Group of answer choices
−0.5, , , 1
1, , −0.5,
, −0.5, 1,
, 1, , −0.5
Answer:
the answer for me is the third option (c)
What would happen if there were no abiotic factors in an ecosystem?
o The ecosystems would get too much rain
O Plants would be unable to grow and produce oxygen for the animals.
O Animals would grow and flourish
O Bacteria would become the consumer instead of the decomposer
No new data to save. Last checked at 8:00pm
Answer:
Plants would be unable to grow and produce oxygen for the animals.
Explanation:
Sunlight, which supports plants, is considered an abiotic factor. If there were no sunlight, plants wouldn't be able to grow, which means no oxygen for many living things found in that specific ecosystem. In other words, that ecosystem would become uninhabitable.
The factors that are non-living and cannot reproduce or breathe are called abiotic factors. Examples are light, temperature, water, soil, wind etc.
If the abiotic are removed from an ecosystem then:
Option B. The plants would not be able to grow and produce oxygen for animals.
The statement can be explained as:
Abiotic factors are a vital part of an ecosystem and without them, there will be unbalanced and destruction of biotic factors.Biotic factors are dependent on abiotic factors for living and growth. In the absence of abiotic factors like light, water, soil etc. plants will not be able to produce food and the energy pyramid and the food chain will be disturbed as plants are the main producers.Plants utilizes the abiotic factors to produce food and oxygen vital for survival for both plants and animals.Therefore, option B is correct.
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PLZ HELP ME!!!!!!!!!!PLZ!Compare and contrast the terms habitat and biosphere.
y
JervalIUNIS
Use the drop-down menus to answer the questions.
Which rock layer was the youngest?
How do you know that the rock layer is the youngest?
Breccia
Conglomerate
COM
Dolostone
Answer:
The youngest rock layer is always those on the top .
Explanation:
Breccia and conglomerate are similar sedimentary rocks composed by fragments larger than two millimeters in size.
Dolostone is a carbonate sedimentary rock that contains dolomite and is related to limestone.
DOM is the abbreviation of the term Dispersed Organic Matter.
Answer:
1. Which rock layer was the youngest?
conglomerate
2. How do you know that the rock layer is the youngest?
it was at the top of all the layers
can u mark me brainliest plz :)
i took the test
why arent descriptive investigations repeatable?
Answer:
Descriptive investigations are not repeatable because they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.
Explanation:
Can light calls glue to dry?
State an example of an abiotic factor and an example of a biotic factor in your ecosystem.
Answer:
Tree and Rain
Explanation:
This microwave is heating up a cup of hot cocoa. The microwave uses what type of thermal energy transfer? Question 19 options: conduction convection radiation. please help.
Answer: conduction
Explanation: transfers heat energy through gases or liquids.
Write a paragraph using complete sentences about whether or not you think humans should establish an outpost on the Moon and the importance of water to this effort. Use evidence from the text and other resources to help justify your answer.
Answer:
Scientist are making efforts from a very long timem to establish life outof the Earth and once they selected moon for that.
For human survival water and oxygen are two essential components. Scientsts from NASA have launched many programms to such as Apollo to land human on Moon surface, which was successful. Other programs were also run by NASA to make humans live and work their but it was important to find out the existence of water first to live in Moon. LRO satellite found the existence of water (lunar water) on the Moon surface but because of less funds and delayed in the program, the mission was dropped.
But according to me, humans should establish an outpost on the Moon as water resources already exist in the Moon and water regulates most of the process in human body. Oxygen is already 40percent by mass at lunar crust which can be extracted as scietist says. so, This will maiantain the environmetal condition on the Earth as well, if the population will shiftto Moon.
A human outpost on the Moon offers numerous potential benefits for space exploration and resource availability. However, practical challenges like accessing water, a crucial resource, exist. Such a venture would require robust technology and international cooperation.
Explanation:The prospect of establishing a human outpost on the Moon is a matter of ongoing scientific debate. There are several compelling arguments for such an endeavor. Firstly, a lunar base could serve as a springboard for future space exploration, perhaps facilitating missions to Mars and beyond. The Moon is rich in resources like Helium-3, potentially crucial for future nuclear fusion reactors. Nevertheless, practical challenges abound. One particular challenge is the availability of water, a critical entity for sustaining human life and for generating fuel. Though recent lunar expeditions suggest the existence of water in the form of ice at lunar poles, extracting and utilizing it requires advanced technology and substantial assets. Hence, the realization of a human outpost on the moon may be feasible only with good rationale and strong international collaboration.
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How do Cancer Cells Behave Differently from Normal Ones? List at least 3-5
Explanation:
cancer cells continue to grow they fail to listen to the signal that tells them to stop
cancer cells do not stick to nearby cells like normal cells they lack stickiness caused by adhesion molecules, can break free ans float to other regions of the body
cancer cells are immortal normal cells have a lifespan cancer cells defy death on the end of the chromosomes is a structure known as telomere. everytime a cell divieds it becomes shorter to a point where the cell dies cancer cells figures out a way to restore their telomeres so they dont shorten as the cells divide and they become immortal
Which of these are examples of polygenic traits ?
Answer:
skin color and eye color as well
Answer:
I think it is birth weight in calves and eye color in humans
Explanation:
An organism's phenotype refers to its
diploid.
traits.
оооо
alleles.
genes.
Answer:
Genes
Explanation:
Which systems work together so oxygen can be distributed to the cells of your body? How do these two systems work together to accomplish this task?
Answer:
The human respiratory and circulatory systems work together to supply the body with oxygen and get rid of waste carbon dioxide.
Answer: Our respiratory and circulatory systems have to work together, the respiratory system takes oxygen from the air we breathe into our lungs, the oxygen is transferred to the blood, the circulatory system then transfers the blood, which transfers the oxygen to the cells for the rest of the body.
Explanation: Edg 2020
Question 12
1 pts
Some mammals, such as the giraffe, eat plants. Other animals, such as the leopard, eat
meat. Still other animals, such as these monkeys eat
O Animals
None of the above
Plants and animals
Pants
Answer: Plants and animals.
Explanation:
Giraffes are herbivores, which means they eat plants exclusively.
Leopards are carnivores, which means they eat meat exclusively.
Monkeys, like humans, are omnivores, which means they consume both plants and meat as part of their diet.
During the process of nutrient absorption in animals, which two body systems are most responsible for breaking down food into smaller
pieces and distributing the nutrients to body cells?
Answer:
Digestive system and Circulatory system
Explanation:
The Digestive system has the stomach, small and large intestine- these are all responsible for breaking down food into smaller pieces and on the other hand the circulatory system helps to distribute the broken food around the body for necessary absorption by the body cell.
Final answer:
The digestive system and the circulatory system are responsible for breaking down food into smaller pieces and distributing nutrients to body cells.
Explanation:
The two body systems most responsible for breaking down food into smaller pieces and distributing the nutrients to body cells are the digestive system and the circulatory system. The digestive system includes organs such as the mouth, esophagus, stomach, and small intestine, which break down the food into smaller molecules through the processes of ingestion, digestion, and absorption. Digestion is the mechanical and chemical breakdown of food into nutrients, while absorption is the process by which nutrients are taken up by the blood or lymph. The circulatory system includes the heart and blood vessels, which transport the nutrients absorbed by the digestive system to the body's cells. The nutrients are carried in the blood, and they are delivered to cells through the capillaries.