Biology Middle School

While observing some ants, a group of German scientists noticed that the ants had an excellent sense of distance. Wondering how this was possible, they decided to perform an experiment. First, the scientists taught ants to retrieve food from a feeder placed near the ants' home. Then, they removed the lower portion of some of the ants' legs to make them shorter. They also attached tiny stilts to some of the other ants' legs to make them longer. Finally, the scientists watched the altered ants attempt to retrieve food from the feeder. After several trials, the scientists found that the ants with shortened legs walked toward the feeder but stopped short of it. On the other hand, the ants with lengthened legs walked past the feeder. Which of the following conclusions can be made given this information?
A. Altering an ant's leg length has no effect.
B. The ants on stilts were more off balance than other ants.
C. The ants were no longer interested in the food.
D. Ants count their steps while walking.

Answers

Answer 1
Hi there!

The answer would be D, that ants count their steps whole walking, because the amount of steps are either longer or shorter depending on whether the ant has stilts or not, and this is caused by the ants counting their steps.

Hope this helps!
Answer 2

Answer: Option D

Explanation:

The conclusion is that the ants counts their steps while walking and because of this there was no difference in the number of steps they walked.

The ants with smaller legs stopped before food and the ants with larger legs moved ahead from food.

The study and the experiment shows that the ants count their steps while moving forward. They track the path of other members that move forward them by counting steps.

Related Questions

Compare and contrast the structure of a compound light microscope and a dissecting microscope

Answers

Dissecting and compound light microscopes are both optical microscopes that use visible light to create an image. Both types of microscope magnify an object by focusing light through prisms and lenses, directing it toward a specimen, but differences between these microscopes are significant
Final answer:

Compound light microscopes have higher magnification and are used for thin samples, while dissecting microscopes have lower magnification and are used for larger objects.

Explanation:

The compound light microscope and the dissecting microscope are both types of microscopes used in biological studies, but they have different structures and functions.

Compound Light Microscope:

Has a higher magnification power (up to 1000x) and is used to observe thin, transparent samples like cells and microorganisms.Consists of a single lens system with objectives and oculars (eyepieces) to magnify the image.Produces an inverted image of the specimen.

Dissecting Microscope:

Has a lower magnification power (20 to 80x) and is used to examine larger objects, such as tissues and specimens.Uses two separate lens systems for each eye to provide a three-dimensional view.Produces an upright image of the subject.

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Write a short paragraph describing the role of all four types of lipids: fats, phospholipids, waxes, and steroids.

Answers

Answer:

Fats, also known as triglycerides, stores energy, assists in body insulation, and protects the organs. The structure of the cell membrane is made up of phospholipids. Cholesterol and hormones are made up of steroids. The leaves and fruits of several plants are coated with wax to avoid losing water.

Explanation:

Lipids play diverse and essential roles in biological systems, and there are four main types: fats, phospholipids, waxes, and steroids. **Fats**, or triglycerides, serve primarily as an energy storage molecule, providing a concentrated source of energy when metabolized.

They also serve as insulation and cushioning in the body. **Phospholipids** are critical components of cell membranes, forming a lipid bilayer where the hydrophilic head interacts with water while the hydrophobic tails create a barrier between the cell's interior and its surroundings. **Waxes** serve as waterproofing and protective coatings in plants and animals, preventing water loss and offering protection against environmental factors.

Lastly, **steroids**, including cholesterol and hormones like estrogen and testosterone, serve as signaling molecules and structural components in cell membranes, influencing various physiological processes, from maintaining membrane fluidity to regulating metabolism and growth. Each lipid type plays a distinct and vital role in the structure and function of living organisms.

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what does it mean when the homeobox genes are said to be highly conserved?

Answers

Highly conserved genes are important for normal function of the organism of every species from prokaryotes to eukaryotes. So such genes do not mutate easily and are highly preserved.

https://socratic.org/questions/what-does-it-mean-for-a-gene-to-be-highly-conserved

Hope this helped!!
~xox Melis

how does observing work ethics help in a workplace

Answers

The more you observe, the more you catch on

Productivity is increased by observing work ethics

Advantages of observing work ethics

Work ethics are written or unwritten guidelines bordering on the behavior of employees in workplaces.

Work ethics are put in place to maintain adequate moral values among employees and in employer/employee relationships.

Work ethics help prevent disasters that could harm businesses or limit productivity.

More on work ethics can be found here; https://brainly.com/question/26659996

Which of the following correctly explains the steps pictured below? An image depicting three stages of meiosis. The first shows two cells with chromosomes still paired as sister chromatids and spindle fibers beginning to form. The second pair of cells shows sister chromatid pairs lined up in the middle of the cell with spindle fibers attached to the centromeres of each pair. The third pair of cells shows the centromeres separating and individual chromosomes moving along the spindle fibers to opposite ends of the cell. Prophase II, Metaphase II, Anaphase II Prophase II, Anaphase II, Telophase II Prophase I, Prophase II, Metaphase I Prophase I, Metaphase I, Anaphase I

Answers

Final answer:

The stages of meiosis depicted in the image are Prophase I, Metaphase I, and Anaphase I, which involve the condensing of chromosomes, their alignment at the cell's center, and their separation to opposite sides of the cell, respectively.

Explanation:

The correct sequence for the three stages depicted in the image is Prophase I, Metaphase I, and Anaphase I. In Prophase I, chromosomes condense, and spindle fibers begin to form, effectively preparing the cell for division. This mirrors the first image you described. In Metaphase I, which is the second image in your description, the chromosomes align along the metaphase plate in the middle of the cell, with spindle fibers attached to each chromosome's centromere. Lastly, during Anaphase I, which aligns with the third image you provided, the homologous chromosomes are pulled apart by the spindle fibers and move towards opposite ends of the cell, separating the centromeres.

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what is the ratio of C, H, and O atoms In carbohydrates

Answers

The ratio of Carbon, Hydrogen, and Oxygen are 1:2:1 in carbohydrates

The ratio to your question is:Carbon, Hydrogen, and Oxygen are 1:2:1 in carbohydrates

what is vertebrata and interbrata

Answers

the vertebrate is a series of small bones forming the backbone,

the invertebrate is an animal lacking a backbone
A vertabrata is a subphylum of chordate animals, comprosimf those having a brian enclosed in a skull or cranoum and a segmental sporal column

What is the main challenge faced by
biologists researching infectious diseases?

Answers

Well there alot of challenges faced by biologist researchers during the research of infectious disease, however major of those include the followings:1- Defining and measuring the fitness for pathogens across the scales2- Developing models to capture the impact of co-infection on the evolutionary process3- Modeling how pathogen characteristics shape the evolution of hose immune diversity4- Understanding the maintenance of pathogen diversity5- Developing the better models for the impact of genetic systems on pathogen evolution .
Hope this helps!

-Payshence xoxo

What shape does the molecule in the image have? A) linear B) tetrahedral C) double helix D) single helix

Answers

DNA is a double-stranded helix.

DNA has three parts- sugar, phosphate and bases that are chemically linked together in a particular way. The shape of DNA is determined by the allowed bond angles in the sugar-phosphate backbone, the way the hydrophobic bases stack together and the interaction between the two strands.

Answer: C) Double helix

Answer:

double helix

Explanation:

trust me its right

This is the energy needed to drive photosynthesis.

Answers

Answer:

sunlight

Explanation:

Final answer:

The energy required for photosynthesis is sunlight. Photosynthesis is a process wherein plants convert sunlight into chemical energy, making it vital for their growth and survival.

Explanation:

The energy needed to drive photosynthesis is sunlight, also known as solar energy. Photosynthesis is the process plants use to convert light energy into chemical energy, which is stored in the bonds of sugars and other food molecules they make. Maize, algae, and many other organisms also rely on this form of energy to fuel their growth and survival.

The process of photosynthesis is initiated when sunlight strikes the chloroplasts in the cells of a plant's leaves. This absorbed light energy is then used to convert carbon dioxide from the atmosphere and water from the soil into glucose, which is a type of sugar that plants use as a source of energy.

The energy needed to drive photosynthesis is light energy. Light energy is absorbed by the chlorophyll pigments in plant cells, which then use this energy to convert carbon dioxide and water into glucose and oxygen during the process of photosynthesis. This energy is essential for plants to produce their own food and carry out other metabolic activities.

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Osmosis occurs when there is a different concentration of solute molecules on each side of the membrane. The drawing below shows a beaker containing a 30% salt solution and a suspended cell containing a 10% salt solution. What statement best describes the cell after 20 minutes?

Answers

The statement that describes the cell after twenty minutes is this: WATER WILL MOVE FROM THE CELL INTO THE BEAKER RESULTING IN A SMALLER CELL.
Osmosis is defined as the process by which the molecules of a solvent move through a semi permeable membrane from the region of lower concentration to the region of higher concentration. For the question given above, the concentration of 30% salt is greater than that of 10% in the cell, so the water molecules will move from the cell [region of lower concentration] into the salt solution [region of higher concentration]. The loss of water will make the cell to shrink and to become smaller.

NILBERT PLEASE ANSWER!!!!!!!!!!!!!!!!!!!!!!!!
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14. Give a short description of star clusters. Describe (1) how they are held together, (2) how old they are, and (3) how astronomers categorize them.


15. What types of stars make up open clusters, and what is the fate of these stars?


16. Describe the cluster that includes our own Sun.



17. How do globular clusters differ from open clusters?

18. Two star clusters visible to the naked eye are _________________ and _____________________________

Answers

14) Star clusters are stars that group together. Star clusters are held together due to a mutual gravitational attraction. Star clusters range from 10 million years old to 100 million years old. Astronomers categorize star clusters based on age, brightness, what types of stars make up the group, and how large the group is.

15) Open clusters are made up of a couple thousand stars that formed in the same molecular cloud and open clusters have loose gravitational pulls thus causing the stars to eventually disperse and then form field stars. 
16) The sun is located in the Hyades Cluster where our entire solar system is located. 

17) Globular clusters are different from open clusters because they contain more stars, have a stronger gravitational pull, and are older than open clusters.
18) Two star clusters visible to the naked eye are Messier 13 and Omega Centauri. 
Ha ;) Sure, I'll answer (but I don't care about getting Brainlest, since other answers were great too ;))

14. 
Star clusters are clusters of stars in a group, usually more concentrated than regular patches of stars. They're held together by gravity, also known (in this case) as "gravitational attraction". Star clusters have different age ranges- they can range from 12 million years to around 95 million years. Astronomers classify them by their size, brightness, age, star types, and other features that make the cluster(s) stand out. 

15. 
Open clusters are thousands of stars formed in the same nebula cloud and open clusters have small gravitational pulls. This causes the stars to spread and lose their gravity, turning into stars classified as field stars. 
16.
The sun used to be located in a cluster called the Hydaes Cluster, but is now no longer a part of a cluster. 

17. 
Globular clusters are different from open clusters; they contain more stars and have stronger gravity within. 
18.
Two star clusters visible to the naked eye are Vegan and Eclipse Narrai.


Hope this helps!


Energy from the sun comes from fusion. What happens during that reaction?

A.Carbon dioxide turns into oxygen

B. hydrogen turns into helium

C. helium turns into hyrdrogen

D. oxygen turns into carbon dioxide

Answers

Hey there, 

Your answer is:

Hydrogen turns into helium. 

Hope this helps...Good Luck

The movement of tectonic plates in two locations is described below:

Location A: Tectonic plates collide and one plate moves over the other while the other plate is pushed deep into the mantle
Location B: Tectonic plates slide past each other

Which statement is most likely correct?

Volcanic eruptions may occur in both locations.
There is no chance of earthquakes in the two locations.
Mountains may form in Location B but not in Location A.
Subduction happens in Location A but not in Location B.

Answers

D. Is the correct answer for this question

Final answer:

Location A exhibits characteristics of a convergent plate boundary with subduction leading to possible volcanic activity, while Location B represents a transform plate boundary where earthquakes can occur, but not volcanism or mountain building.

Explanation:

The movement at Location A is indicative of a convergent plate boundary, where one tectonic plate is subducted beneath another. This process can lead to volcanic activity as the subducted plate melts and forms magma that can rise to Earth's surface. Hence, subduction happens in Location A but not in Location B. On the other hand, Location B describes the characteristics of a transform plate boundary, where tectonic plates slide past each other. This motion can build up strain that, when released, results in earthquakes, but it does not typically cause volcanic eruptions or mountain formation as there is no subducting plate.

According to the simulation, _______ helps predators to survive by allowing them to sneak up on their prey. a. camouflage b. mimicry c. speed d. night vision Please select the best answer from the choices provided

Answers

It really depends on the animal but in your case A.Camouflage would be the best bet

Answer: a.Camouflage

Simulation is a deception in the characteristics of the organism which favors it's survival in the environment. Camouflage is a kind of simulation, in which the organism adapt the color or shape according to the surrounding environment in order to remain undetected by a prey and a predator. For example, chameleon is a reptile, which can change it's color according to the surrounding environment. It changes it's color to green in grass and remains brown in the tree bark in order to eat insects and remain undetected from prey and predator population.

Therefore, According to the simulation, camouflage helps predators to survive by allowing them to sneak up on their prey.

Wildfires tend to have long-term benefits for plants and animals.

Question 5 options:
True
False

Answers

Hello,

Here is your answer:

The proper answer to your option B "false".

Here is how:

Benefits is something you get out of a subject and wildfires destroy plants, and habitats which ruins ecosystems which kills animals so the answer will be "false" because wildfires do not benefit animals and plants!

Your answer is B.

If you need anymore help feel free to ask me!

Hope this helps!
true is 75 wrong wild fires are extremity bad not just for plants and trees us humans to because animals and humans have to breath it in and it burns down the trees and plantations   
so the answer is false

although the ash has many nutritionist so are better for the next gen for trees but contains a lot of hurt so the answer s b false  

The biosphere: extends into the atmosphere includes plants and animals is made of water, air, and land all of the above

Answers

All of the above. Hence the correct option is 4.

The biosphere is a dynamic and interconnected system that encompasses the entirety of Earth's surface and extends into the atmosphere. It includes land, air, and water, forming a complex web of ecosystems where living organisms interact with their environment. This sphere of life reaches from the highest peaks of the atmosphere to the deepest depths of the ocean, showcasing the remarkable diversity and adaptability of life on our planet.

The biosphere plays a crucial role in regulating environmental conditions and sustaining the intricate balance of life, making it a vital component for the survival and evolution of various species across different habitats. Hence the correct option is 4.

Complete question:

The biosphere:

extends into the atmosphere

includes land, air, and water

reaches all the way to the bottom of the ocean

all of the above

how is geothermal energy used?
a. material is burned to cook food or drive engines b. moving water turns a turbine to produce electricity. c.wind turns a mill that makes a generator work. d. heated water warms buildings or generates electricity.

Answers

I think the answer is B

a unicellular prokaryotic organism is discovered by scientists. are these characteristics enough to place it in a domain or is it more information needed

Answers

Final answer:

The organism's classification requires further information beyond being unicellular and prokaryotic, as both the Bacteria and Archaea domains share these characteristics. Additional details such as cell membrane composition or rRNA sequence are needed for accurate placement.

Explanation:

Knowing that the organism is unicellular and prokaryotic is crucial but not entirely sufficient for its classification into one of the three domains: Bacteria, Archaea, or Eukarya. The domains Bacteria and Archaea include organisms that are unicellular and prokaryotic, meaning they lack a nucleus and membrane-bound organelles. However, these two domains have distinct differences in their cell membrane structures and rRNA sequences.

Consequently, further information is required to determine whether the organism belongs to the domain Bacteria or Archaea. One type of information that could help classify the organism is the chemical composition of its cell membrane or the sequence of its ribosomal RNA (rRNA). If scientists analyze these aspects and find a certain type of lipid unique to Archaea or if the rRNA sequence aligns more closely with that of known Archaea, they could classify it within the domain Archaea. Conversely, if its cell membrane composition and rRNA more closely resemble Bacteria, then it would be classified in the domain Bacteria.

So These are science questions i need help im offering 60 points

1. What is the relationship between the Universe Galaxies, The solar systems and stars?
(Make sure to describe each by size and what is in them)

2. How do galaxys Form?
(Make sure to say what force causes them to form)

3. How does a stars temperature and mass affect the appearance of the star?
(Make sure to discuss what the star looks like- color and brightness based on both temperature and mass)

Answers

#1 the relationship between universes and galaxies is that galaxies are made up of universe. and the relationship between stars and solar systems is every solar system contains at least one star.

#2. galaxies form after several planets form rather close to each other. 

#3. the last one I don't know
Our Solar System consists of our star, the Sun, and its orbiting planets (including Earth), along with numerous moons, asteroids, comet material, rocks, and dust. Our Sun is just one star among the hundreds of billions of stars in our Milky Way Galaxy. If we shrink the Sun down to smaller than a grain of sand, we can imagine our Solar System to be small enough to fit onto the palm of your hand.  Pluto would orbit about an inch from the middle of your palm.

Taking a prenatal vitamin is very important for a breastfeeding mother. true or false

Answers

The answer is true. The mother will be getting the much needed vitamins and minerals and will also pass them to her baby through breastfeeding.

The correct answer is, "True".

-Hope this helps.

why do red bellied black snakes live in the easternboard of australia

Answers

Red bellied black snakes live in rural environments being found close to irritation canals and dams
They prefer areas with shallow water, tangles of water, plants, logs, or debris. They use it for protection as a place to hide. They will hung in logs and they can flee into water and stay there for many minutes at a time.

x-ray diffraction photographs by wilkins and franklin suggested that

Answers

DNA molecules are arranged as a tightly coiled helix

X-ray diffraction photographs by Wilkins and Franklin suggested that the structure of the DNA, and from the X-ray crystallography, the DNA double helical structure was established.

What is the significance of X-ray crystallography?

X-ray crystallography helped to observe the DNA, and the image was taken by the scientist Rosalind Franklin. These X-ray crystallography images provided evidence for the double helix model proposed by Watson and Crick and helped in the understanding of genetics. After that, this is used in molecular biology, medicine, biotech, etc. to get a better cure.

Hence, x-ray diffraction photographs by Wilkins and Franklin suggested that the structure of the DNA, and from the X-ray crystallography, the DNA double helical structure was established.

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What might the colonists have harvested in 1621?

Answers

They have harvested potato's carrots, and more for it was thanksgiving.
corn, barley, beans and pumpkins

A ____ is something that is essential for an organisms life

Answers

All living things have cell(s), use energy, reproduce, respond to surroundings and grow
Hey!

Cell or cells are things we need to live a life, without cells we would not be here.

Hope this helps!

Changes in ___ and ___ are involved in creating a metamorphic rock from another rock.

ASAP FOR BRAINLIEST

Answers

the answer would be A

What is the responsibility of a scientist?

A. To answer scientific questions accurately
B. To answer philosophical questions
C. To advertise new technology
D. To be involved in politics

Answers

The answer is A. To answer scientific questions accurately

How does heat flow inside Earth move the tectonic plates?

Answers

the plates located at our planet's surface move because of the extreme heat in the earth's core that then leads to the molten rock in the mantle layer to move. it moves in a pattern called a convection cell, it forms when warm material rises, cools down, and eventually sinks down. 

The heat flow inside Earth moves the tectonic plates in the form of convection currents.

How does heat flows inside the earth?

Convection in the mantle has been inferred from the fact that the temperature gradient is significantly lower in the main portion of the mantle than in the lithosphere. Hot rocks are physically moved across the mantle during convection to transfer heat. This causes the movement of tectonic plates in the mantle.

Plate tectonic activity frequently leads to magma formation, igneous intrusions, metamorphism, volcanic activity, earthquakes, faulting, and folding. This process can cause the rise of land and the formation of mountains.

Therefore, the heat flow inside Earth moves the tectonic plates in the form of convection currents.

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How to figure out the inclination of the earths axis

Answers

The inclination of the earth's axis is 23.5 degrees.

I hope that this helps.

What is one way homeostasis benefits living organisms? It maintains balance. It reduces air pollution. It increases food consumption. It regulates atmospheric temperature. PLZ HURRY

Answers

It maintains balance
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