Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. ... It results in gametes that have unique combinations of chromosomes. In sexual reproduction, two gametes unite to produce an offspring.
Explanation:
What is DNA'S Function?
What is Protein's Function?
What are examples of Proteins?
What is Enzyme's Function?
What are examples of Enzyme?
*If you look it up I will find out*
*Don't give me an paragraph give me an sentence ONLY*
I will report anyone I don't care if you answered first.* I only care if you answer CORRECTLY*
* means IMPORTANT/
DNA is necessary for the production of proteins as well as the regulation, metabolism, and reproduction of the cell.
Proteins help repair and build your body's tissues, coordinate bodily functions, and allow metabolic reactions to take place.
Structural, storage, hormonal, enzyme, etc.
Enzymes speed up the rate of a chemical reaction to help support life.
Lipases, amylase, lactase, deoxyribonuclease, etc.
Explain how the development and improvement of microscopes changed the study of living organisms.
Answer: As scientists started improving on the microscopes, the more they got to observe the cells in depth. Compound light microscope uses visible light to produce a magnified image and doesn't allow it to scatter.
how does an amoeba cell function differently from a human nerve cell?
Answer:
Answer. It means amoeba has single cell,unicellular. ... Amoeba will functions every thing with the help of that single cell. Humans have many cells which functions multiple functions ( nerve cells,muscle cells,brain cells).
Explanation:
Answer:
Hi E 16
Amoeba are unicellular organisms where as humans are multi cellular organisms
It means amoeba has single cell,unicellular. we has multi cells means more than 2 cells.
Amoeba will functions every thing with the help of that single cell.
Humans have many cells which functions multiple functions (nerve cells,muscle cells, brain cells).
This illustration of a cell has a label. If there were no label, how could you tell that this cell is a plant cell and not an animal cell?
Group of answer choices
The cell has a nucleus.
The cell is surrounded by a cell membrane.
The cell is surrounded by a cell wall.
The cell contains cytoplasm.
Answer:
the cell is surrounded by a cell wall
Explanation:
only plant cells have a cell wall.
Answer:
The cell is surrounded by a cell wall
Explanation:
FIrst off, we can eliminate the first option because all cells have a nucleus.
Second off, all cells have a cell membrane, but animal cells DON'T have cell walls, which makes it option 3.
Finally, it's not "The cell contains cytoplasm due to both animal and plant cells having them.
during duffusion molecules move ?
Answer:
During diffusion, molecules do move.
Explanation:
What enzyme reads the nucleotide code and matches the appropriate nucleotide base in place after the DNA strand has been split?
Answer:
The correct answer is - DNA polymerase.
Explanation:
DNA polymerase enzyme is the enzyme That reads the code and synthesizes the appropriate nucleotide base pairs according to the matching nucleotide after DNA splits during the replication process.
It helps in making the DNA error-free by proofreading. DNA polymerase III which has 2 molecules that work on both the strand leading and lagging strand.
Describe the fungi reproduction process.
Please I really need this answer ASAP.
Fungi reproduce asexually by fragmentation, budding, or producing spores. Fragments of hyphae can grow new colonies. Mycelial fragmentation occurs when a fungal mycelium separates into pieces with each component growing into a separate mycelium. There are many types of asexual spores.
Answer:
hello!
Explanation:
Following a period of intensive growth, fungi enter a reproductive phase by forming and releasing vast quantities of spores. Spores are usually single cells produced by fragmentation of the mycelium or within specialized structures (sporangia, gametangia, sporophores, etc.). Spores may be produced either directly by asexual methods or indirectly by sexual reproduction. Sexual reproduction in fungi, as in other living organisms, involves the fusion of two nuclei that are brought together when two sex cells (gametes) unite. Asexual reproduction, which is simpler and more direct, may be accomplished by various methods.
Asexual reproduction
Typically in asexual reproduction, a single individual gives rise to a genetic duplicate of the progenitor without a genetic contribution from another individual. Perhaps the simplest method of reproduction of fungi is by fragmentation of the thallus, the body of a fungus. Some yeasts, which are single-celled fungi, reproduce by simple cell division, or fission, in which one cell undergoes nuclear division and splits into two daughter cells; after some growth, these cells divide, and eventually a population of cells forms. In filamentous fungi the mycelium may fragment into a number of segments, each of which is capable of growing into a new individual. In the laboratory, fungi are commonly propagated on a layer of solid nutrient agar inoculated either with spores or with fragments of mycelium.
Budding, which is another method of asexual reproduction, occurs in most yeasts and in some filamentous fungi. In this process, a bud develops on the surface of either the yeast cell or the hypha, with the cytoplasm of the bud being continuous with that of the parent cell. The nucleus of the parent cell then divides; one of the daughter nuclei migrates into the bud, and the other remains in the parent cell. The parent cell is capable of producing many buds over its surface by continuous synthesis of cytoplasm and repeated nuclear divisions. After a bud develops to a certain point and even before it is severed from the parent cell, it is itself capable of budding by the same process. In this way, a chain of cells may be produced. Eventually, the individual buds pinch off the parent cell and become individual yeast cells. Buds that are pinched off a hypha of a filamentous fungus behave as spores; that is, they germinate, each giving rise to a structure called a germ tube, which develops into a new hypha.
Although fragmentation, fission, and budding are methods of asexual reproduction in a number of fungi, the majority reproduce asexually by the formation of spores. Spores that are produced asexually are often termed mitospores, and such spores are produced in a variety of ways.
Suppose a scientist is doing an experiment to determine the effect of an all-organic diet on the occurrence of
cancer in rats. Which of the following would be the best control group for this experiment?
A. Rats fed a standard rat diet (not organic)
B. Rats fed an all-organic diet
C. Pats fed an all-organic diet, but half the amount of normal
D. Rats that are not fed anything
Hmm... I'm not 100% sure but I'd say it was D.
Rats fed a standard rat diet (not organic) will be the best control group for this experiment. The correct option is A.
What is control group?A control group in a scientific experiment is a group that is isolated from the rest of the laboratory activity and where the regression analysis being evaluated cannot influence the outcomes.
This isolates the independent variable's effects on the experiment and can help rule out other explanations for the experimental results.
An experimental group is made up of participants who have their independent variable manipulated in some way. These are the people who receive special treatment.
The best control group for this experiment will be rats fed a standard rat diet (not organic).
Thus, the correct option is A.
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What is the charge of the outside of the DNA molecule?
Answer:
It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
Explanation:
Which of the following is NOT a soil forming process?
O Translocations
O Gains
O Losses
Transformations
b. What food molecules are created?
Answer:
Instead, let's start applying what we learned so far by looking at the most common groups of molecules in food: carbohydrates, proteins and fats. These molecules are also called 'macronutrients' and are essential for us from a nutritional point of view.
What conditions are needed to create a sound wave?
Answer:
The waves must be coherent and monochromatic
A runner takes off at
the beginning of a
race.
Acceleration , speed , or , velocity
Answer:
acceleration
Explanation:
velocity doesn't make sense and speed is how fast not how fast you take off. hope this was helpful
Someone helpp me plsssssssssssssssss :(((
Answer:
Explanation:
This shows that in 2018 the number of nests increased while the number of eggs per nest increased at the minimum and decreased at the maximum when compared to 1780. We can see that by looking at the graph. The blue curve represents 2018 and the dotted 1780. The Y-axis represents the number of nests while the X-axis represents the number of eggs. The dotted one is shorter but wider and the blue one is taller.
Please select the word from the list that best fits the definition Use an outline to answer your questions
Answer: the answer is write
Explanation:
Answer:
write
Explanation:
I took test and got 100 and to Use an outline to answer your questions you have to write
What theory’s/ideas challenge natural selection? In other words, what disproves natural selection?
Answer:
Natural selection needs some starting material, and that starting material is heritable variation. For natural selection to act on a feature, there must already be variation (differences among individuals) for that feature. Also, the differences have to be heritable, determined by the organisms' genes.
1. During mitosis, a single cell divides to produce two daughter cells. What must happen in the original cell so that each of the daughter cells has a complete set of chromosomes?
Mitosis is the cell division which occurs in all types of cells in the body. This results into formation of daughter cells with same set of genetic material as the parent cell.
What is Mitosis?
Mitosis is a type of cell division which occurs in all types of cells. This division is also called as Equational division as the genetic content remains constant from the parents to offspring. This process results into formation of two daughter cells which are similar to the parent cell.
In mitosis, a cell divides to form two identical daughter cells with same genetic material. It is important that the daughter cells have a copy of every chromosome in their nucleuc, so the process involves copying of the chromosomes first and then carefully separating the chromosomes copies to give each new cell a full set of genetic material.
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The efficiency of photosynthesis varies with the wavelengths of the light that illuminates the chloroplasts. In an experiment to study the relationship between the incoming light wavelengths and the chemical reactions of photosynthesis using a species of green algae, a researcher labeled the CO2 supply to the algae with 14C, and the H2O with 18O.
Which of the following results is expected?
More 14C is found in the algae when it is illuminated by green light than when it is illuminated by violet-blue and red light.
More 18O is found in the algae when it is illuminated by green light than when it is illuminated by violet-blue and red light.
More 14C is found in the algae when it is illuminated by violet-blue and red light than when it is illuminated by green light.
More 18O is found in the algae when it is illuminated by violet-blue and red light than when it is illuminated by green light.
Answer:
more C14 found is the awser
Explanation:
do potential energy increase as they get closer?
Answer:
yes they increase the rate that the are working normally
What is natural selection?
-compare natural selection to evolution
Answer:
its when certain organisms are better suited for certain enviornments or they have genes that allow them to live in a enviornment without struggle
Explanation:
Answer: Natural selection is where the strongest survives. And the weak dies.
Natural selection is where strongest survives, evolution is where the most liked feature survives. (Example, NS, finches in the Galapagos. Ex of Evo, birds with preferences of colors for their nest)
Explanation:
Why was the trait of digesting lactose (the sugar in cow's milk) considered an advantage for
humans that had the trait?
Question 5 of 10 Match each measurement tool with what it measures. Hygrometer ? Humidity Wind sock ? Air Pressure Barometer ? Wind speed and direction Anemometer ? Wind speed
Answer:
hygrometer measures humidity
barometer measures air pressure
wind sock measures wind speed and Direction
anemometer measures wind speed
The terms with their respective measurable device can be matched as:
1. Hygrometer is a type of device used to measure the content of water vapor or moisture in air or soil.
2. Barometer is a scientific instrument that is used for the measurement of air pressure. Temperature, wind patterns, and the earth's rotation affect the air pressure.
3. Windsock is a type of conical tube that is used to understand the direction of the wind. Windsocks are easily observed at airports and beaches.
4. Anemometer is a type of device, which consists of three spherical plates. The plates are used to measure the speed of the wind.
Thus, the quantities like air, moisture, and speed can be calculated by various instruments.
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List the 3 reasons why mitosis occurs
Mitosis is a cell division method a part of the cell cycle that is essential for growth and development, repair and replacement, and asexual reproduction.
What is mitosis?Mitosis is a type of cell division method that occurs in all the somatic cells and plays a crucial role in living organisms. They produce daughter cells to increase the cell number and to aid in the growth and development.
They replace and repair the damaged cells in the body and also is a form of asexual reproduction where the parent cell is divided to form a new daughter cell with the same ploidy.
Therefore, mitosis is essential for growth, repair, and asexual reproduction.
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3. Why does the order of amino acids affect the structure of a protein?
Answer:
The order of amino acids determines protein shape, since the chemical properties of each amino acid are forces that give rise to intermolecular interactions to begin to create secondary structures
Explanation:
The exchange of carbon dioxide and oxygen in the alveoli of the lungs is an example of what?
C)passive transport
Answer:
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs.
Reaction: C6H120, + 6
A -> 6
B + 6 H2O + energy
What molecules does letter B represent in the reaction above?
02
O CO2
ОАТР
O H2O
The reaction of cellular respiration involves the use of the glucose molecule in presence of oxygen to produce energy and carbon dioxide. Thus, option B is correct, as molecule B is carbon dioxide.
What is cellular respiration?Cellular respiration is a chemical method that involves the inhaled oxygen and use of the food molecules to release energy along with the water and carbon dioxide molecules.
Cellular respiration can be depicted by the reaction:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy
Therefore, molecule B is carbon dioxide.
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4. One coach of an Olympic rowing team makes his athletes warm up by doing 30 minutes of
stretching and jogging in place before practicing each day. Another coach suggests that
resting before practicing will result in better performance by her team. They decide to
conduct an experiment to see which practice is correct. One team rests before practice, the
other team warms up for thirty minutes, and then each team records the time that it takes
them to row a specific distance, Identify the dependent variable in this experiment. [1]
Illuminate Education, Inc.
Answer: The team that warms up will have there muscles warm and will do a better job during rowing and after theu are done they should stretch again.
Explanation:
The team warms up for thirty minutes and has better results in Olympics.
Why stretching is good before any strenuous activity?Stretching prior to exercise allows the muscles to loosen up and become resistant to the impact they are about to undergo, thereby reducing the chance of injury.
Your muscles and tendons will loosen as a result of proper stretching. During your workout, this will improve your flexibility and range of motion. Performance has improved. Stretching before a workout improves blood flow, suppleness, and range of motion, which boosts overall performance.
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how can the seasonal cycles impact tertiary consumers?
Answer:
Tertiary consumers would have less food
Brainliest plz
Explanation:
Animals in the tertiary trophic level are omnivores that eat animals that are in the secondary trophic level because they are carnivorous as well. An invasive top predator such as boa constrictors not necessary eat animals in the tertiary trophic level, however they affect them because they eat their food. Boa constrictors' diet include a wide variety of animals, including birds, mammals, and other reptiles
Based on the article, which statement accurately describes garlic mustard and trillium in the forest? 1.)Trillium and garlic mustard are both native plants. 2.)Trillium is a native plant, and garlic mustard is an invasive plant. 3.)Trillium is an invasive plant, and garlic mustard is a native plant. 4.)Trillium and garlic mustard are both invasive plants.
Answer:
Its 2 or B
Explanation:
I just took the Assignment on edge
Answer:
It's............B!Explanation:
In case no one believes the person and I got it right!
Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body's cells.
Which organelle is most likely malfunctioning in the patient's cells?
O Golgi apparatus
O lysosome
o ribosome
O endoplasmic reticulum