sperm formation produces
A. four diploid cells
B. four haploid cells
C.four polar bodies
D. two haploid cells​

Answer:

It changes into ice

Explanation:

It depends on how much heat it is, if it loses a lot of heat then the water will freeze and the molecules will bunch together to form a solid so it will change into ice hope this was helpful!

Answer:

the golgi apparatus

Explanation:

Answer:

About 3.8 billion years ago, the water condensed into rain which filled the basins that are now our oceans. According to this theory, the ocean formed from the escape of water vapor and other gases from the molten rocks of the Earth to the atmosphere surrounding the cooling planet.

Answer:

its  answer A

Explanation:

A fatty acid molecule is a long chain of hydrocarbons with a carboxyl group. They can be saturated (single bonds only, 'saturated' with hydrogen) or unsaturated (contains at least one double bond). These fatty acids form a key part of fat molecules like triglycerides, bonding with glycerol through an ester bond.

A fatty acid molecule is best represented as a molecule that consists of a long chain of hydrocarbons to which a carboxyl group is attached. This long hydrocarbon chain ranges from 4-36 carbons, with 12-18 carbons being the most common. The fatty acid is hydrophobic due to its long hydrocarbon chain. There are two types of fatty acids, saturated fatty acids that contain only single bonds and have the greatest number of hydrogen atoms possible, making them 'saturated' with hydrogen; and unsaturated fatty acids that have at least one double bond and therefore fewer hydrogen atoms.

Fatty acids are a crucial part of a fat molecule, such as a triglyceride, which additionally consists of glycerol. Here, the fatty acids are bonded to the glycerol molecule's carbons via an ester bond through an oxygen atom, releasing three water molecules during this bond formation.

A common example of a fatty acid is palmitic acid, a saturated fatty acid derived from the palm tree. Another example is alpha-linolenic acid which is an omega-3 fatty acid that possesses three cis double bonds and a curved shape.

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Answer:

The species attracted new predators

Explanation:

Answer:

Krypton is a noble gas, so it was difficult for chemists to find it, as though it was a secret

Explanation:

Krypton  is a noble gas and this demand it has full orbital electron shells (2.8.18.8 or [Ar].3d¹⁰.4s².4p⁶). They, therefore, do not have an affinity for gaining or losing an electron hence rarely react with other elements. They were therefore hard to discover by early chemists because there were no known compounds of this gas and other noble gases. This is why the name ‘hidden’.

Answer:

Explanation:

on edgenuty its c

Answer:

The answer to your question is deposition

Explanation:

In the picture we can see that molecules are moving fast and after a process they move slower, they change from a gas to a solid state.

a) condensation this answer is wrong because condensation is transformation of vapor into gas and does not happen in this picture.

b) deposition this is the correct answer

c) evaporation matter changes from liquid to gas, then this answer is wrong.

d) sublimation matter changes from solid to gas in the picture happens the opposite.

Deposition physical change is represented by the diagram below. Hence the correct option is b.

The diagram illustrates a scenario where 200 g of water is poured into a beaker, and the choice of deposition aligns with the process depicted. Deposition is the transformation of a substance from a gas directly to a solid without passing through the liquid phase. In this context, as the water vapor is poured into the beaker, it undergoes deposition and changes directly into a solid state, forming ice in the beaker. This interpretation is consistent with the physical change described in the diagram, where the water undergoes a phase transition without first becoming a liquid.

This scenario contrasts with more common phase changes, such as evaporation or condensation, where a substance transitions between the liquid and gas phases. Deposition skips the liquid phase altogether, and the water vapor converts directly into solid ice particles. This portrayal in the diagram captures a distinctive aspect of phase transitions, highlighting the diversity of physical changes that can occur in different conditions and contexts. The comprehension of deposition in this scenario adds depth to our understanding of the intricacies of phase changes and the versatile behaviors of matter. Hence the correct option is b.

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Answer: Option D

Explanation:

If there is a certain idea regarding any process which can be improved then the thought to improve it should be first shared with the boss of the company.

Firstly, the person sharing the thought should himself be sure about the thought that he is going to present in front of the boss.

The thought regarding the improvement of the software process should be first written in an organized way and presented to the boss.

Answer:

D

Explanation:

just because

Explanation:

The independent variable is the variable in the experiment that is deliberately changed.

1. The independent variable is the use of a calculator- Some used calculators, others didn't. This variable will affect the results. For example, it would be expected that the students who used calculators would perform better.

2.The independent variable is the age of the students.

3.The independent variable is the use of vocabulary flash cards.

Answer:

if you had 4 offspring then 2 would be black and 2 would be white because of the punt square being dominant (B) and the recessive of the black one and the 2 bb's of the white one it would come out both ways hope that helpped

Explanation:

A) 50% of guinea pigs have white fur

50% of guinea pigs have black fur

Answer:

ECOLOGICAL SUCCESSION

A change in plant communities over time is called succession, which is an important concept in ecology. Succession can be categorized into primary and secondary.

Any change in plant communities over time is called succession. This is a significant concept in ecology which describes how the structure of a biological community evolves over time. Succession can be primary or secondary. Primary succession occurs in an area that has never previously been colonized by life, like a new volcanic island, while secondary succession happens in areas where a community previously existed but was removed or disturbed, such as after a forest fire.

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Answer: a.argon ,d.water vapor, e.carbon dioxide .........on edge:)

Explanation:

Answer:

The demand of natural researchers and specialist would elevate on account of the need to screen the quality of the environment, to examine the effect of human activities on land and water ecosystems, and to create techniques for reestablishing environments.

Explanation:

What's more, natural researchers will be expected to enable planners to create and develop buildings, transportation halls, and utilities that ensure water assets and reflect productive and gainful land use.

There will be extra interest for new ecological researchers to supplant the individuals who resign, advance to the executive positions, or change professions.

Answer:

1. The cells of eucaryotes are characterized by the presence of a nucleus and membrane-bound organelles. Bacteria, on the other hand, do not possess a nucleus or membrane-bound organelles.

2. As bacterial cell walls are made of peptidoglycan (protein and sugars), and archaeal cell walls are composed of polysaccharides (sugars). I would add a lysis solution that separates the cell wall and integral molecules. Then, I could use High-performance liquid chromatography to quantify the chemical composition differences of both walls.

Explanation:

1. The cells of eucaryotes are characterized by the presence of a nucleus and membrane-bound organelles. Bacteria, on the other hand, do not possess a nucleus or membrane-bound organelles.

2. Both archaea and bacterial cells lack membrane-bound organelles and nucleus, but they both possess a cell wall. Therefore, if I realize that the cell is definitely a prokaryote and not a eukaryote, then, to determine if it is from an archaeon or bacterium, I would analyze the integrity of their cell walls as bacterial cell walls are made of peptidoglycan (protein and sugars), whereas archaeal cell walls are composed of polysaccharides (sugars).

I could add a lysis solution that separates the cell wall and integral molecules. Then, I could use High-performance liquid chromatography to quantify the chemical composition differences of both walls.

Also, the majority of archaea cannot be cultured within the laboratory setting. So that could also work as another method, except it wouldn't be as reliable as the others.

Mechanical waves waves need to interact with particles of either a solid, liquid, or gas to travel.

Explanation:

In the world, the dispersal of energy is under the control of two important waves called electromagnetic waves and mechanical waves. Waves in water and sound waves in air are two instances of mechanical waves. Mechanical waves are brought about by an unsettling influence or vibration in particles of either a solid, liquid, or gas to travel.

Water waves are formed by vibrations in a fluid and sound waves are shaped by vibrations in a gas (air). These mechanical waves travel through a medium by making the atoms to interact with one another.

I'm pretty sure it's Sound waves.

Explanation: I know this is most likely for a DBA and for science notes.

Answer:

Fewer resources

Explanation:

With fewer resources, there won't be many competitions with a species population increasing. And not only that but without any resources, there won't be any "competitors" left to compete.

Competition among species is defined as the rivalry for the shortcoming of resources like food, shelter, and water. The competition among species can be reduced by fewer resources.

The correct answer is:

Option C. fewer resources

Competition is defined as the rivalry among the organisms belonging to different ecological niches for resources.

The species when competing for the limiting resource will cause the overlapping of the ecological niche. This will lead to evolutionary changes in the organisms.

The selection of better-suited organisms to the environment will have a higher chance of survival and adapt to utilize the resources left available.

With fewer resources, the competition among species decreases as there won't be competitors available.

Therefore, option C is correct.

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Answer:

Step 1: weathering of pre-existing rocks Step 2:  Transport the weathering rocks Step 3: Desposition of the rocks Step 4: Compaction Step 5: Cementation for the sediment to form a rock.

Explanation:

Answer:

For sediments to be converted into rocks, initially a rock body or a source rock must be weathered as a result of which these broken materials are produced. This broken rock fragments are then transported from one place to another by the agents such as wind, water and ice. This materials are deposited at a different place where they are subjected to compaction and lithification, resulting in the formation of a clastic sedimentary rock.

The word 'clastic' refers to the broken rock fragments.

For example, shale, sandstone, conglomerate and breccia.

Answer:

External respiration occurs in the lungs where oxygen diffuses into the blood and carbon dioxide diffuses into the alveolar air. Internal respiration occurs in the metabolizing tissues, where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells.

Explanation:

Answer: protons

Explanation:

Changing the number of protons would change it into an atom of a different element.

Hello! Your answer is protons.

There are three main parts of any atom. The proton, neutron, and electron. The proton and neutron form the center of the atom, or the nucleus, while the electrons float around them.

The protons determine the element. The number of protons is the atom's atomic number. For example, if there were 6 protons, the element would be the one with an atomic number of 6, or carbon. If there was just one, it would be hydrogen as that has an atomic number of 1.

When you change the number of neutrons, you get isotopes. This changes the atomic mass, as neutrons' main impact is mass. This also can mainly change stability. When you change the number of electrons, you change the charge of an atom. Electrons' main purpose is to bond + charge the atom. Electrons don't weigh much, they barely weigh anything. They instead give a negative charge to an atom (while the proton gives a positive)

Hope this helps!

Answer:

Energy cannot be destroyed or created, it is instead transferred.

"Conservation of energy" refers to the fact that energy can neither be created nor destroyed.

The principle of conservation of energy is present in Newton's first law and refers to the fact that energy, as a generalized concept, cannot be completely depleted, cannot be created from anything, but is in a constant process of renewal and transformation.

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An ecosystem is a complex network of interacting organisms and their environment. It includes a food web that illustrates the transfer of energy between producers, consumers, and decomposers. Ecosystems are vital for maintaining ecological balance and the flow of nutrients.

The term for a complex group of organisms that are connected and interact with one another is an ecosystem. In an ecosystem, different populations of organisms coexist and form a community that interacts not only among themselves but also with the physical environment. This level of ecological study helps us understand the intricate connections that allow diverse life forms to thrive together. For example, in an ecosystem, a food web illustrates how energy and nutrients flow from one organism to another, demonstrating the dependence and relationships between producers, consumers, and decomposers.

Each organism plays a specific role within this system, contributing to the broader biogeochemical cycles that sustain life on earth. The primary producers, such as plants and algae, harness energy from the sun to create biomass through photosynthesis. This biomass serves as the foundation for all other organisms within the food chain, with consumers and decomposers relying on it for their survival. The complex interactions and feedback mechanisms within ecosystems are essential for maintaining balance and resilience against environmental changes.

certain hydrogen bonds are formed so that A goes with T and G with C

Answer:

The correct option is Option C i.e. Herbicide-resistant crops may grow out of control and become weeds.  

Explanation:

1. The herbicide resistance is a genetic character that is introduced into the plant with help of genetic engineering.

2. Now crops are not sexually reproduced. New seeds are planted every season. So chance of losing the herbicide resistance is less.

3. The risk of weeds becoming herbicide resistant is there even with genetic engineered crops.

4. Cross-pollination between two different species doesn’t occur generally.

5. But if these plants are not killed by any herbicides, they themselves can grow too fast as weeds.  

Answer:

A. Cross-pollination could cause the crops to lose their herbicide resistance.

Explanation:

Herbicide resistance is the acquired capacity of plants to endure and imitate following introduction to a portion of herbicide typically deadly to the wild kind. Herbicides don't actuate opposition in weed species, rather they basically select for resistant individuals that normally happen inside the weed populace.

Herbicide resistance, communicated by a recessive allele, advances and spread generally gradually as the dominant heterozygotes and homozygous prevailing phenotypes are dispensed with by use of the herbicide to which resistance created.

This is truthful for cross-pollinating species, be that as it may, in exceptionally self-pollinating species, the resistant alleles can spread rapidly as selfing increments the recurrence of homozygotes to the detriment of heterozygotes.

Answer:

When a star expands, the surface of the star becomes cooler as well as redder. Hence, forming the red giant.

Explanation:

If all the hydrogen which is present in a star gets fused into helium then an increase in the core temperature can be seen along with the core contractions. As a result of these core pressures and the core temperatures, the helium gets fused into carbon through a process known as the triple alpha process. As a result, the star begins to expand whereas its surface becomes cooler and redder which leads to the formation of red giant.

The incorrect statement about what a geneticist does is A) performs experiments on pea plants to determine how self- and cross-pollination occur, as this describes Gregor Mendel's historical work, not a typical activity of modern geneticists.

The statement that does not explain what a geneticist does is: A) performs experiments on pea plants to determine how self- and cross-pollination occur. This task was specifically performed by Gregor Mendel in the 19th century and forms the historical basis of the field of genetics. Modern geneticists conduct a wide range of activities that include studying familial histories for genetic disorders, identifying new genetic disorders, and researching how traits are inherited, but they do not typically engage in mendelian pea plant experiments as a primary activity.

Geneticists specialize in the study of heredity and the variation of inherited characteristics. They conduct experiments and investigations that may build upon Mendel's principles, but do not often replicate his historic pea plant experiments unless for educational purposes. Instead, their work tends to utilize advanced techniques and technologies to understand complex genetic interactions and their implications on health and disease.

Answer:The relative polarity of two molecules directly relates to their solubility. In general, solutions involve molecules of similar polarity. Therefore, oil is insoluble in water. In fact, oil is said to be hydrophobic, or "water-hating."

The statement 'Irrigation at night using recycled water and drip sprinkler irrigation are ways not to conserve water' is b. false.

Both irrigation at night using recycled water and drip sprinkler irrigation are methods that conserve water.

Drip irrigation is a highly efficient method of delivering water directly to the crop roots, hence minimizing water wastage through evaporation and runoff.

This practice is extensively used in places like Israel, which are known for their advanced water conservation techniques. Recycled water, often referred to as grey water, is treated wastewater that can be reused for agricultural purposes.

Irrigating at night significantly reduces the amount of water lost to evaporation compared to daytime irrigation. As a result, more water reaches the plants, further enhancing efficiency.

Complete question:

Irrigation at night, using recycled water, and drip sprinkler irrigation are ways not to conserve water

Please select the best answer from the choices provided

a. T

b. F

Answer:

Carbon is the basic compound for making of molecules in biological systems. IN growth medium, carbon sources are added to provide energy.

Explanation:

Without carbon, there would be no life on earth. Carbon molecules have the ability to form bonds that are stable with  a vast number of molecules. It can also form bonds with itself. The proteins, amino acids, DNA, RNA, lipids all contain carbon molecules. Hence, it serves as the basic compound for making molecules of life.

In the growth culture media, Carbon is added in the form of carbohydrates like glucose or glutamine as it provides main source of energy.

Carbon is a necessary component of all life on Earth. Carbon intake and outflow are a part of every plant and animal life, whether they take in carbon to help build food or release carbon as part of respiration. Carbon is always moving from one location to another.

Thus, it acts as the building block for life's molecules. Carbon is given to the growth culture media in the form of carbohydrates such as glucose or glutamine because it is the primary source of energy and plays a major role in the biological system.