Do all birds have feathers?

Answer:

Here, no of pairs of chromosomes in ant = 4.  

Now during the gametogenesis, each pair of chromosome will get separated in one gamete each.  

So, number of unpaired chromosomes = 4 unpaired chromosomes.  

The gametes are now haploid, i.e. Without paired chromosomes.  

Now, only 1 of the one pair of chromosomes will be carried inside a gamete,

Lets assume, the gene present in the cell chromosomes is heterozygote  

So,  there will be 2 possibilities.  

So, their probability will result as [tex]=2\times2= 4[/tex]possibilities.

Then for 4 chromosomes would be [tex]4^4=256[/tex] chromosomes.

Answer:

The total number of possibilities for four chromosomes would be 4^4 = 256 possibilities in the gamete or offspring.

Explanation:

Given,

Organism – Ant species

Number of chromosomes = 4 pairs

Genetic possibility due to independent assortment = ?

Solution:

During the gamete formation, only one chromosome from a pair foes to the gamete as meiosis occurs. Therefore, the gamete will have only 4 chromosomes instead of 4 pairs. The gamete can get any of the two chromosome from a pair and thus, it has 2X2 = 4 possibilities.

Therefore, total number of possibilities for four chromosomes would be 4^4 = 256 possibilities in the gamete or offspring.

Explanation:

This is a law because it describes the force but makes not attempt to explain how the force works. A theory is an explanation of a natural phenomenon. Einstein's General Theory of Relativity explains how gravity works by describing gravity as the effect of curvature of four dimensional spacetime.

Final answer:

A law about gravity describes the behavior of gravity with mathematical formula whereas a theory about gravity provides an explanation of why gravity behaves the way it does.

The key difference between a law about gravity and a theory about gravity relates to their purposes and functions in the realm of science. A law, such as Newton's law of universal gravitation, describes the behavior of gravity. It provides a mathematical equation that predicts how gravity works in a variety of contexts. For instance, Newton's law of universal gravitation states that every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

On the other hand, a theory provides an explanation of why gravity behaves the way that it does. Einstein’s theory of relativity, for example, offers an explanation of gravity as a curvature of space-time caused by mass and energy. The theory doesn't just describe what happens; it provides a framework for understanding why it happens.

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Answer:

You eventually run out of sucrose to act as the substrate.

Explanation:

You must have both substrate and an enzyme for the reaction to continue.

Enzyme activity increases with the concentration of sucrase up to a point. This limit is due to the finite amount of sucrose in the system. Once all sucrose is utilized, the reaction stops regardless of enzyme concentration.

The results of the experiment you conducted can only be observed up to a limit due to the fact that there is a finite amount of substrate (in this case, sucrose) available in the system. The enzyme sucrase functions by breaking down the substrate sucrose into glucose and fructose. As the concentration of sucrase increases, more sucrose can be broken down at a faster rate, which increases the reaction speed. However, once all the sucrose has been utilized, the reaction will stop regardless of the enzyme concentration as there is no more substrate for the enzyme sucrase to act upon. Hence, the increase in enzyme activity is observed only up to a certain limit.

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Answer:

D) centriole

Explanation:

nave a good day {:

The organelle present in mouse cells but absent in bean plant cells is the centriole. This is because centrioles are usually found in animal cells and have a primary role in cell division. Plant cells typically lack these organelles and use different mechanisms for cell division.

The organelle that is present in the cells of a mouse but not present in the cells of a bean plant is the centriole. Centrioles are cellular structures involved predominantly in cell division processes like mitosis and meiosis, and are typically found in animal cells. Plant cells, such as those in a bean plant, commonly lack these organelles because they have other mechanisms to handle cell division.

All cells, whether they are plant or animal, have a cell membrane. Chloroplasts are found in plant cells for photosynthesis but are absent in animal cells. A cell wall is a characteristic organelle of plant cells, and is not found in animal cells. Therefore, answer option D, centriole, is the correct answer.

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Answer:

A

Explanation:

The pathogen is not recognized to the cells, the cells attack and kill that pathogen as if it was a virus trying to keep your body at equilibrium.

Final answer:

The immune system, upon recognizing a pathogen, activates immune cells that phagocytize the pathogen. It makes use of both innate non-specific defenses and adaptive specific defenses, and can remember past infections to provide immunity. The correct answer is option A.

Explanation:

When the immune system recognizes a pathogen, it can respond in various ways, including the activation of immune cells that phagocytize (eat and kill) the pathogen. Components of the immune system are constantly on the lookout for signs of pathogens. Upon detection, immune factors are mobilized to the infection site, where they identify the pathogen, mobilize cells and molecules to efficiently combat the invader, and halt the response once the infection is cleared. The innate immune system provides non-specific defenses, while the adaptive immune system creates tailored, specific responses and can remember past infections for more efficient future responses. This memory can last for decades and involves both the lymphatic system and immune cells such as B and T lymphocytes to provide immunity.

Not all cells undergo mitosis frequently. The frequency varies depending on the type of cell and its role in the organism. While some cells divide regularly, others like neurons or cardiac muscle cells do not divide, spending their lifetime in the Go phase.

No, not all cells undergo mitosis frequently. The frequency of cell division is highly variable even within the cells of a single organism. For instance, in humans, the frequency of cell turnover ranges from a few hours in early embryonic development, to an average of two to five days for epithelial cells. However, certain specialized cells, such as cortical neurons or cardiac muscle cells, spend an entire human lifetime in the Go phase without dividing.

Mitosis is the process by which a cell divides to produce two genetically identical daughter cells. This cell division process is comprised of four major stages - prophase, metaphase, anaphase, and telophase - and is typically followed by cytokinesis, which divides the cytoplasm of the cell. This process occurs in all normally dividing cells of the body except for germ cells that produce eggs and sperm, which instead undergo meiosis for sexual reproduction.

Cells produced through mitosis serve various functions in different parts of the body, such as growth, replacing dead or damaged cells, and even asexual reproduction in some organisms.

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Answer: all the answer applies

Explanation: Because of the composition rich in protein they are as  food source for other organisms such as zooplankton, insects and snails.

they are used for medicinal purposes because have been identified as a rich source of biologically active compounds with antiviral, antibacterial, anti-fungal and anticancer activities, the compounds is polyhydroxyalkanoates.

the Cyanobacterias produce oxygen though the photosynthesis.

the Cyanobacterias cause disease because of theirs toxins

Answer:

Cyanobacteria performs all the function that given in the Question.

Explanation:

Cyanobacteria serve as a food for other organism, They are photosynthetic bacteria. Cyanobacteria and plants are capable of using light energy which trapped by the chlorophyll to convert carbon dioxide and water into oxygen and its food as a glucose, this process is called photosynthesis.

Cyanobacteria are used for medical purpose because they have rich source of biologically active compound with antibacterial, antifungal, antiviral activities.

Cyanobacteria produce oxygen because they oxygenic photosynthetic  bacteria. They trap sun's energy absorbs carbon dioxide and emit oxygen.

Cyanobacteria performs nitrogen fixation because they contain additional fixed nitrogen which absorbs by the plants from their roots. Nitrification cannot occurs in the presence of oxygen. So, nitrogen is fixed iin the specialised cells called heterocysts.

Answer:

65.4

Explanation:

To find the average, add all the values together and divide by the number of values (3)

[tex] \frac{65.4 + 65.3 + 65.5}{3} [/tex]

average = 65.4

Answer:

Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients. Hope this helps you out! :)

Answer:

what is the function of a fasicled root??

Answer:

A.

Explanation:

The arctic soil is so cold that the ground beneath the tundra surface remains frozen all year. This permanently frozen ground is called permafrost. Each summer, when the sun warms the tundra surface, the top few inches of soil thaw. This melted part is called the active layer.

Answer: the active zone.

Explanation: The top layer of the soil in the tundra is called the active zone

Answer:

The three basic types of clusters astronomers have discovered are globular clusters, open clusters, and stellar associations. ...

Globular clusters were given this name because they are nearly symmetrical round systems of, typically, hundreds of thousands of stars. ...

Open clusters are found in the disk of the Galaxy.

Answer:

The star clusters are defined as the enormous groups of stars. The three major types of clusters are as follows-

(1) Globular clusters- They are almost symmetrical and forms a circular type of system. They are many hundreds and thousands of stars. The surface temperatures of these stars are approximately 4000 K. These stars represent the oldest portion of the Milky Way Galaxy. Here, the stars are closely oriented due to the high gravitational force.

(2) Open clusters- These include stars of different ages and are mostly present in the disk of the Galaxy. These stars are comparatively younger than the globular clusters and have a diameter of less than about 30 light-years. Here, the stars are not closely oriented, whereas they are scattered as a result of which they are named as the open clusters.

(3) Stellar associations- These stars are about 100–500 light-years in terms of diameter. The stellar association is a bunch of very young stars that contains about 5 to 50 hot and bright Orange as well as Blue stars are scattered over a specific boundary in space.

Explanation:

Coral reefs are the part of marine ecosystem and their diversity is immense.

Coral reefs plays an important role in maintaining the ecological balance and they are:

Shield coastlines from the hurting effects of wave movement and tropical storms, give living spaces and safe house to various marine living things, are the wellspring of nitrogen and other central enhancements for marine regular pecking orders, help carbon and nitrogen fixing, help with enhancement reusing.

Answer:

To what ecosystem are coral reefs compared Why is it important to conserve biodiversity

Occupying less than one percent of the ocean floor, coral reefs are home to more than twenty-five percent of marine life. Why is that important? A highly biodiverse ecosystem, one with many different species, is often more resilient to changing conditions and can better withstand significant disturbances.

Explanation:

Answer:

...d

Explanation:

Answer:

D. leaves

Explanation:

Answer: False

Explanation:

It's the opposite! Hot, less material rises while the cold, more dense material sinks

Answer:

FALSE

Explanation:

The materials like magma when heated at great depth in the mantle due to the heat energy provided by the interior of the earth, it gets warm and less dense. This materials then starts to rise up due to the force generated by the magma in the upward direction. This hot magma then rises up and eventually cools due to the lowering of temperature in the upper portion of the mantle. This materials after being cooled, becomes less dense and sinks.

This process takes place in a form of a convection cell.

Hence, the above statement is false.

Answer:

The particles in a solid are tightly packed and locked in place, The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other. The particles in a gas are fast moving and are able to spread apart from each other.

Explanation:

Answer:

particles in a solid are closely packed together and vibrate, rather than move freely, whereas in a liquid particles are further spread apart and move around

Explanation:

particles are always moving, but in the three different phases (solid, liquid and gas) they move at different speeds. in a gas they vibrate, in a liquid they begin to move more openly and freely because the particles are more spread out and then in a gas the particles are racing around because the particles are even further spread apart

Answer:

Explanation:

By putting the train track against something pointing downwards. Gravity will take over and the train will pick up speed as it goes down the hill.

To make the train move faster, Matthew should focus on the train's engine power, reduce friction between wheels and the track, and consider an aerodynamic design for the train to efficiently achieve higher speeds.

When discussing the motion of a train and how to increase its speed, several factors can come into play, such as the power of the train's engine, the friction between the train wheels and the track, and the aerodynamic design of the train. To make the train move faster, Matthew could ensure that the engine is powerful enough to increase the train's acceleration. Reducing friction through improved wheel design or better track material could also help. Additionally, the aerodynamic shape of the train will reduce air resistance, allowing it to reach higher speeds more efficiently.

Answer:

3. Water breaking down to hydrogen and oxygen

4. Water

5. Gas

6. Both a liquid and a gas?

7. Physical Change

8. Chemical Properties

9. Volume

10. Kinetic-Molecular Theory of Matter

Explanation:

cause yeet

Answer:

The answer is 12 N :)

pls vote brainliest

Answer:

From high to low.

Explanation:

When we say "high to low" and "low to high", when talking about cells, diffusion, passive transport, etc. we are referring to the concentration of the solute in both sides of the biological membrane.

In simple diffusion, the molecules travel from a higher concentration to a lower concentration, in order to create a uniform environment.

The opposite of diffusion is osmosis, meaning that in osmosis the opposite happens; in this case, molecules are "attracted" to the higher concentration side of a biological membrane, and travel to it.

Hope it helped,

BiologiaMagister

Answer: My best guess would have to be (Sea ice might melt)

Explanation:

Ocean warming. The ocean absorbs most of the excess heat from greenhouse gas emissions, leading to rising ocean temperatures. Increasing ocean temperatures affect marine species and ecosystems. Rising temperatures cause coral bleaching and the loss of breeding grounds for marine fishes and mammals.

Because of global warming, ocean surface temperatures are rising, and another possible consequence is that sea ice might melt, which is in the third scenario as global warming causes the earth's temperature to rise.

The melting of the ice belts has negative impacts on the environment, as melting ice in the Arctic and Antarctic regions contributes to sea level rise that negatively affects infrastructure and ecosystems near the coast and contributes to climate change by interfering with global weather patterns.

Hence, because of global warming, ocean surface temperatures are rising, and another possible consequence is that sea ice might melt, which is in the third scenario as global warming causes the earth's temperature to rise.

Learn more about the ice belts by clicking here.

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Answer:  Structure of the Silver Atom. The silver atom has 5 electron orbits (energy levels) with a total of 47 electrons. Beginning with the orbit closest to the nucleus and working outward, the number of electrons per orbit should be: 2, 8, 18, 18, 1. Of course, the nucleus contains 47 protons and 61 neutrons.

Answer:

Evaporation: Water evaporates from the ocean, from the earth's surface and also by organisms, in the phenomenon of perspiration in plants and sweating in animals. Living things, especially plants.

Condensation: Water in the form of steam rises and condenses forming clouds, formed drops of water.

Precipitation: It occurs when the drops of water, which form the clouds, cool, accelerating the condensation and joining the drops of water to form larger drops that eventually precipitate to the earth's surface. Precipitation can be snow or hail or rain

Explanation:

Answer:

Through the hydrologic cycle.

Explanation:

Water moves through the hydrologic cycle in three forms: solid, liquid or gas. When the sun shines on the Earth and it’s bodies of water during the day, a process called convection causes some liquid water to evaporate into the air in the gaseous state called vapor, binding with dust particles in the air to form clouds. When the water vapor in the atmosphere reaches the point of saturation, the air cools, water condenses back into a liquid and falls down to Earth in the form of precipitation. Approximately 10% of the water from precipitation is absorbed by plants. The rest of it either collects in oceans, lakes and rivers by runoff or it percolates through many layers of sand and rock underground in the earth’s surface, until it slowly makes its way into larger bodies of water by gravity. Plants use the water they absorb for photosynthesis. Humans, animals and insects absorb some of that water when they eat plants. In the heat of the sun, water once again gets from lakes and oceans back to atmosphere by evaporation, and the hydrologic cycle repeats again by water falling as precipitation.

Answer:

the answer is A

Explanation:

it hides in its she'll when preditors are near or are going to attack iy

Answer: Option A. To protect the organism

Explanation:

The given picture is of a turtle and it is showing a structure of shell that functions for the protection of animal.

The shell is the outer covering of the turtle which is made of skeletal and dermal bone which helps in providing structural framework and protection against prey. This is a very hard substance that acts as a shield and also able to survive fossilization.

It also helps the turtle to survive in the extreme condition as it get hide inside its shell.

Hence, the correct option is A.

Explanation:

birds= hollow bone structure 4 flight. scales on (feet), defined as "raptors" flight feathers, thicker core for uplift, shape of beak 4 food it eats.

fish= natural "slime coat" to protect scales from water or pollution damage, have gills 2 absorb o2 from h2o, streamlined 2 swim in h2o, find to turn, dart, escape predators.

reptiles= cold- blooded, have 2 bask in sun so it can stay warm at night, eats bugs, other reptiles 4 nourishment, can sometimes change color 2 match its surroundings, or has color of surroundings.

amphibians = aquatic usually, needs moisture, goes thru metamorphosis, egg, tadpole, frog (both land & h2o bearing.

insects= eat other insects or foliage, lay eggs on leaves, hibernate or die in cold weather, butterflies make cocoons 4 next generation.

mammals= warm blooded, have sex with 1 mate or many, gives birth, usually are preyed upon by predators ( lion, tiger, etc...) hope this helps, good luck!

Answer:

birds= hollow bone structure 4 flight. scales on (feet), defined as "raptors" flight feathers, thicker core for uplift, shape of beak 4 food it eats. fish= natural "slime coat" to protect scales from water or pollution damage, have gills 2 absorb o2 from h2o, streamlined 2 swim in h2o, find to turn, dart, escape predators. reptiles= cold- blooded, have 2 bask in sun so it can stay warm at night, eats bugs, other\oundings. amphibians = aquatic usually, needs moisture, goes thru metamorphosis, egg, tadpole, frog (both land & h2o bearing. insects= eat other insects or foliage, lay eggs on leaves, hibernate or die in cold weather, butterflies make cocoons 4 next generation. mammals= warm blooded, have sex with 1 mate or many, gives birth, usually are preyed upon by predators ( lion, tiger, etc...) hope this helps, good luck!

Answer:

This is true.

Explanation:

The pollen from one plant can fertilize a different type of plant, this is called cross-fertilization. This will cause a combination of both plants to be created.

Computer model  is generally used to predict long-term events

Answer: C. Computer model

Explanation:

Scientific models are used to predict and elaborate the behaviour of the real objects in the field of physics, chemistry, ecology and earth science. Computer model is the type of scientific model that is used to explain long term events.

A computer model is used to follow patterns of the weather along with the factors to forecast natural events. It is not the only type of model to make predictions.

For instance, predicting earthquake uses computer model, relationship between time and distance is the idea model, study of cell and its various parts uses physical model.  

Answer:

C is the answer

Explanation:

I just took the test

Chlorophyll captures light energy from the sun to produce glucose