The two challenges that plants had to overcome in order to survive on land are that sunlight is brighter, since it doesn't have to go through water first and mineral nutrients are plentiful in the soil.
Minerals are defined as a chemical compound which has a well -defined composition and possesses a specific crystal structure.It occurs naturally in the pure form.
If a compound occurs naturally in different crystal structure then each structure is considered as a different mineral.The chemical composition of a mineral varies depending on the presence of small impurities which are present in small quantities.Physical properties of minerals include color,streak, luster,specific gravity and cleavage.
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A 111.6 g sample of iron was heated from 0°C to 20°C. It absorbed 1004 J of energy. What is the specific heat capacity of iron?
0.00578 J/g°C
0.45 J/g°C
2.20 J/g°C
4.18 J/g°C
= 449.82 J/kg/K
Explanation;Quantity of heat by a substance is given by the formula;
Q = McΔθ
Where; Q is the quantity of heat,m is the mass in Kg, c is the specific heat capacity, Δθ is the change in temperature.
Q = 1004 Joules, mass = 0.1116 Kg and Δθ = 20
Therefore;
1004 J= 111.6/1000 × 20 × c
1004 J = 0.1116 × 20 × c
c = 1004/(0.1116 × 20)
= 449.82 J/kg/K
Which is a feature of all arthropods? A. claws B. segmented bodies C. internal skeletons D. wings
Answer: B. segmented bodies
Explanation:
Segmented bodies is a feature of all arthropods.
Arthropods refer to invertebrates with segmented bodies, exoskeleton and jointed legs. They keep ecosystems as recyclers of nutrients, scavengers, pollinators and food for other animals. The families of arthropods are:
i. Insects such as ants, dragonflies
ii. Arachnids such as spiders and scorpions
iii. Myriapods such as centipedes and milipedes
iv. Crustaceans such as crabs and lobsters
Answer:
The answer here is B
Explanation:
I just did it on Gradpoint
What causes an object with mass to have weight?
Gravity is the attractive pull between two objects that have mass. The strength of gravity is directly proportional to the amount of mass of each object. ... An object with twice as much mass will exert twice as much gravitational pull on other objects. The gravitational force increases as the size of an object increases.
summarize how the dna sequence directs the making of a protein
Proteins are produced by stringing amino acids together in the order specified by messenger RNA strands that were transcribed from DNA in the cell nucleus. The process of synthesizing a protein is called translation, and it occurs on ribosomes in the cytoplasm of a cell.
Why is HIV difficult to cure?
it's difficult to cure because there are so many varying strains that are slightly different
Because is degenerative and hits your inmune system.
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which consumers live in the intertidal zone
This is Limpets and Crabs
Where is the blood filtered first?
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NEED HELP ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! LAST ONE WILL GIVE BRAINLIEST
In the drawing above, the distance from the ground to the floor of the trailer is 28 inches. The length of the ramp is 70 inches. What is the mechanical advantage of this simple machine?
A.
28
B.
2.5
C.
2/5
D.
1/3
The correct answer is B - 2.5
Can someone help!!?? <3
A person has a sex-linked inheritable disease. Which statement is true about the set of chromosomes which are likely to carry the genes for this disease?
The gene is present on a single pair of chromosomes.
The gene is present multiple pairs of chromosomes.
The gene is always present on an X chromosome.
The gene is always present on a Y chromosome.
Final answer:
A person with a sex-linked inheritable disease has the gene present on the X chromosome. Females who carry the disease gene are carriers and do not show symptoms, while males will always show symptoms if they have the disease gene on their X chromosome. So, the correct statement is "The gene is always present on an X chromosome".
Explanation:
A person with a sex-linked inheritable disease would have the gene present on the X chromosome. The X chromosome is one of the two sex chromosomes, and females have two X chromosomes while males have one X and one Y chromosome. Females who carry the disease gene on one of their X chromosomes are carriers and do not show symptoms of the disease, while males will always have the disease if their X chromosome carries the disease gene.
Cardueline finches can be found in many areas of the world, including North America and Asia. Hawaiian honeycreepers, which are found only in Hawaii, have been found to have DNA commonalities with this group of finches that indicate they have a common ancestor. Which mechanism might have led to the appearance of the Hawaiian honeycreeper?
anatomical isolation
temporal isolation
geographical isolation
behavioral isolation
Geographical Isolation is the mechanism that might have led to the appearance of the Hawaiian honeycreeper.
Geographical Isolation is the term used that refers to a population of animals, plants, or other organisms that are separated and unable to exchange genetic materials with other organism of the same species.
Geographical Isolation may be a result of coincidence or accident.
Here are some factors of Geographical Isolation:
1) Isolation by barriers
2) Isolation by distance
3) Isolation after an Event
4) Isolation by separation
Answer:
The answer is c). geographical isolation
how would the citrate mutation in E. coli give it an advantage over other E.coli populations?
The mutation enabled one of the E. coli populations to feed off citrate. this gave them an advantage because they had another food source
Final answer:
The citrate mutation in E. coli allows the bacteria to metabolize citrate as a new energy source, giving them an evolutionary advantage in certain environments. This adaptation involves an increased expression of genes such as citT and DctA, which enhance nutrient uptake and citrate metabolism.
Explanation:
The citrate mutation in E. coli provides a significant evolutionary advantage over other populations that cannot metabolize citrate. This mutation involves changes such as a genomic duplication leading to increased expression of the citT gene, which enables the bacteria to import citrate into the cell. The ability to utilize a previously untapped energy and carbon source through the citrate permease enzyme gives these bacteria a reproductive advantage in environments where citrate is available, thus enhancing their survival and proliferation.
Further mutations, such as those increasing the expression of DctA, have been observed to improve the E. coli cells' capacity to import nutrients and metabolize citrate, further strengthening their competitive edge. This adaptation exemplifies mechanisms of evolution where selective pressure encourages the accumulation of beneficial mutations, rather than relying on a singular, rare alteration to confer a survival benefit.
Mineral matter and organic matter together make up about 50 percent of soil. What two substances make up the other 50 percent?
The particles that make up soil are categorized into three groups by size: sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Although a soil could be all sand, all clay, or all silt, that's rare. Instead most soils are a combination of the three.
The relative percentages of sand, silt, and clay are what give soil its texture. A loamy texture soil, for example, has nearly equal parts of sand, silt, and clay.
SOIL HAS STRUCTURE
Soil structure is the arrangement of soil particles into small clumps, called "peds". Much like the ingredients in cake batter bind together to form a cake, soil particles (sand, silt, clay, and organic matter) bind together to form peds. Peds have various shapes depending on their “ingredients” and the conditions under which the peds formed: getting wet and drying out, freezing and thawing--even people walking on or farming the soil affects the shapes of peds.
Ped shapes roughly resemble balls, blocks, columns, and plates. Between the peds are spaces, or pores, in which air, water, and organisms move. The sizes of the pores and their shapes vary from soil structure to soil structure.
Answer:
water and air is the other 50%
Explanation:
Which of these is an autotroph?
There’s no list or options but, an autotroph is something that makes its own food, like plants. :) AUTO means SELF!
i don't know what the options are but here's some info about autotrophs:
- autotrophs are plants or something that makes its own food
- they are a major food source for heterotrophs (consumers)
- they provide almost all energy for animals
hope this helps!!
The edges of faults are rough and tend to stick together while the rest of the block is moving. The energy that would normally cause the blocks to slide past one another is being stored up. When the force of the moving blocks finally overcomes the friction of the rough edges at the fault zone, it unsticks, and the stored up energy is released. The energy radiates outward from the fault in all directions.
The energy that radiates outward from the fault in all directions is a(n)
A) volcano.
B) tidal wave.
C) aftershock.
D) seismic wave.
Answer:
D. Is correct I took it on USATESTPREP
Explanation:
Can someone write me an essay on the effects of pollution on the ocean? 500 words
Explanation:
Everything in this world we use comes from the ocean in some way. The air we breathe, the water we drink, even the products we use day to day, would not be possible without the ocean. That's why the issue of ocean pollution is so important and needs to be addressed as soon as possible. We depend on the ocean for so much in our life, without it we would surely become extinct. People seem to think that since the ocean is so large and vast, we can dump as much waste as we'd like into it and it will never have an effect on us. However, since we've been polluting the ocean as far back as Roman times, the evidence of ocean pollution becoming a major problem is all too clear. There are many different ways the ocean can become polluted.Fishnets improperly discarded into the ocean can also cause major issues, tangling into unsuspecting mammals and fish. According to the Marin Academy's Oceanography website, there are over 46,000 pieces of plastic floating in each square mile of ocean off the Northeast coast of the United States, which contributes to the death of 100,000 marine mammals and two millions sea birds yearly. A way you wouldn't expect pollution to be caused is by noise. The pressure from the sounds omitted by ships, sonar devices, oil rigs, and earthquakes can disrupt communication, hunting, migration, and reproduction patterns from many marine animals like whales and dolphins. This can throw the whole system off balance. Air pollution can also cause ocean pollution by being absorbed into the water and contaminating it, and vice versa. Ocean pollution can eventually cause air pollution. Dirt can also spill into waterways from top soil or silt from fields or construction sites, causing endangerment to fish and wildlife habitats. Out of all of these ways, oil spills can cause a noticeably excessive amount of damage to the ocean. Although only 12% of the oil entering the sea is caused by spills, they can deteriorate ocean life and environment more than any other pollution. One gallon of used oil spilled into the ocean, which contains toxic chemicals and heavy metals severely dangerous to the micro-organism at the base of the food chain, can cause an eight-acre layer
out at the beautiful ocean, the silky sand and gorgeous seashells lay underneath my feet. The blue waves crashing down onto the shore. The ocean is truly a beautiful sight to see. However, we are slowly ruining this beautiful thing because of the way we treat this planet, the ocean is extremely polluted and marine life is paying for it. A few of the ways mankind is damaging marine life is by heavy oil pollution, and exposing marine life to dangerous chemicals. One way our oceans are polluted is because.
Ocean Pollution Ocean pollution kills marine life everyday and damages the ocean in many ways that sometimes can't be fixed. The real question is where does it all go? Much of it ends up on our beaches washed in with the waves and tides, some sinks, some is eaten by marine animals mistaking it for food. The majority of pollutants going into the ocean come from activities on land. According to the United Nations Environment Programme (UNEP).
Ocean pollution is one of the most urgent issues in our world today. The ocean is crucial to our ecosystem and it is being severely damaged at an alarmingly increasing rate. In this paper I will educate about the role the ocean plays in our beautiful Earth, why it is being so widely ignored and dismissed, the causes of pollution, and its effects on animals and humans alike. Since the beginning of the human race, people have flocked to the ocean. The largest civilizations were built in fertile, coastal
The oceans face many types of pollution every day, every second. The ocean is our greatest ecosystem and out most valuable resource. A common misconception is that the rainforests are the lungs of the planet however, the majority of our oxygen is made via the algae in the sea. The oceans feeds, hydrates, and provides us with oxygen; ironically enough, despite its monetary value to mankind, it is what is treated the worst. For ages we have been dumping our trash, chemicals, and waste into the oceans
I'm in the ocean every day, it’s my second home. Because of this, I am very sensitive to literary and other pollution that ends up in our oceans. I can't walk down the beach today without seeing a pile of trash. Because of this curiosity, I wanted to research what another type of litter fill our local ocean. Our ocean is filthy, Plastics and fibers make their way into the sea naturally every day. Apart from the rest of the trash, some of these plastics and fibers are microscopic, coining the terms.
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Governments and businesses have little impact on the environment. Please select the best answer from the choices provided T F
false
hope this helps :)
Answer:
False
Explanation:
Government affects the environment by its policies. Approval for various environmental protection acts and their execution by government determine the quality and pollution level of the environment. Similarly, various businesses affect the environment by release of pollutants in air or water. Following the eco-friendly processes may protect the environment by possible harms.
Which of the following is a primary consumer in the food web shown above?
I'm not sure what the picture is, but the answer would most likely be the herbivore eating the grass. The reason this is true is because primary consumers are the consumers that gain their energy by eating plants like grass and wild flowers. Examples of Primary consumers are deer, elk, cows, and monkeys. It's obvious which animals are herbivores by looking at the shape of their teeth. They are flat since they are not tearing any sort of flesh.
This is accurate because the majority of consumers get their energy from eating plants like grass and wild flowers. Deer, elk, cows, and monkeys are some examples of primary consumers.
What is Food web?It is easy to tell whether an animal is a herbivore or not by the shape of its teeth. They are flat because they aren't tearing any kind of skin.
A food web is made up of all the food networks in a particular environment. Each individual organism in an ecosystem is a component of various food chains.
Energy and nutrients can travel through the ecosystem along several food chains. All the interconnected and overlapping food systems in an ecosystem are combined to form a food web.
Therefore, This is accurate because the majority of consumers get their energy from eating plants like grass and wild flowers. Deer, elk, cows, and monkeys are some examples of primary consumers.
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A high birth to death ratio leads to smaller populations. Please select the best answer from the choices provided T F
Answer: False
Explanation:
Population density is a phenomena which describes the number the individuals of the population of a species residing in a particular area when measured in a particular period of time. The population density is influenced by the birth, death, emigration and immigration.
The number of births will increase the members in the population but the number of deaths will decrease the members in the population of a species. According to the given situation, high birth to death ratio will lead to large population as the effect of death will be nullify by the increase in birth.
Therefore, the situation, A high birth to death ratio leads to smaller populations. will be false.
False. A high birth to death ratio actually leads to larger populations, not smaller ones.
The birth to death ratio, also known as the crude birth rate and crude death rate, represents the number of live births and deaths in a population per 1,000 individuals per year.
When the birth rate exceeds the death rate, it means that more individuals are being born than are dying in a given population. This results in a net population increase as the number of births contributes to population growth. The higher the birth to death ratio, the faster the population will grow over time.
Conversely, if the death rate exceeds the birth rate, it leads to a declining population as the number of deaths reduces the overall population size. In this scenario, the population experiences negative growth.
It is essential to consider factors like immigration and emigration (net migration) to fully understand population dynamics. When birth rates exceed death rates, and there is also net migration into a population, the growth can be even more significant.
In summary, a high birth to death ratio indicates population growth, not population decline. Factors that contribute to a high birth to death ratio can include factors like high fertility rates, improved healthcare, and overall better living conditions that reduce mortality rates, leading to a population increase.
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This is the equation for the formation of sodium chloride from sodium bromide. Cl2 + 2NaBr → Br2 + 2NaCl Which are the reactants and the products in this reaction?
A. The reactants are Cl2 (chlorine) and NaBr (sodium bromide). The products are Br2 (bromine) and NaCl (sodium chloride).
B. The reactants are Br2 (bromine) and NaCl (sodium chloride). The products are Cl2 (chlorine) and NaBr (sodium bromide).
C. The reactants are Cl2 (chlorine) and Br2 (bromine). The products are NaBr (sodium bromide) and NaCl (sodium chloride).
D. The reactants are NaBr (sodium bromide) and NaCl (sodium chloride). The products are Cl2 (chlorine) and Br2 (bromine).
The correct answer is A
Reactants are the left side of the equation, and the Products are the right side of the equation.
Water reacts with sodium metal to produce sodium hydroxide and hydrogen gas, along with heat and light. What are the reactants in this chemical reaction
Answer:
Reactant in the mentioned chemical reaction are:
Explanation:
Water ( H2O) and sodium metal ( Na )
Further Explanation:
Reactants are the beginning materials of a chemical reaction.
The substances newly formed are called products.
In the above reaction, sodium hydroxide, hydrogen gas, heat and light are the products.
When sodium is reacted with water, it dirt's on water producing a hissing sound due to the production of hydrogen gas.
Answer:
Sodium metal and water
Explanation:
As you may already know, a chemical reaction is formed by "mixing" the reagents that will generate a result, which are the products.
Regents can be considered the ingredients of the reaction. In this case, if you say that water reacts with sodium metal to produce sodium hydroxide and hydrogen gas, together with heat and light, you mean that if we mix the ingredients water and sodium metal, we will have as a result sodium hydroxide and hydrogen gas, along with heat and light. In this case, water and sodium metal are the reaction reagents.
Which two macromolecules contain nitrogen?
Answer:
Proteins and nucleic acids
Explanation:
Proteins are the polymers of amino acids. Each amino acid has one central carbon atom to which four functional groups are attached: amino group, carboxyl group, hydrogen atom and side chain.
Nucleic acids (DNA and RNA) are polymers of nucleotides each of which consists of pentose sugar, phosphate molecule and one nitrogenous base (adenine, guanine, cytosine, uracil and thymine).
Hence, amino acids and nitrogenous bases of proteins and nucleic acids contain nitrogen.
The two macromolecules that contain nitrogen are nucleic acids and proteins.
MACROMOLECULES:
Macromolecules are large molecule. They include carbohydrates, proteins, lipids and nucleic acids. Proteins are structurally made up of monomers called amino acids, which possess a nitrogen element at the core of its structure. Nucleic acids are a type of biological molecules that include DNA and RNA. DNA and RNA contain a structural component called nitrogenous base, which are four in number namely; adenine, guanine, cytosine and thymine. Therefore, the two macromolecules that contain nitrogen are nucleic acids and proteins.Learn more at: https://brainly.com/question/24593606?referrer=searchResults
which of the few is not a defining characteristic of water?
a) surface tension
b) cohesion
c) polarity
d) low specific heat capacuty
Answer:
D
Explanation:
Low Specific Heat Capacity
Arguments FOR GMOs? Arguments AGAINST GMOs?
❤️Hello!❤️ In my opinion, i'm against GMO's. First of all you need to understand what GMO stands for, GMO means (Genetically Modified Organisms) and does that REALLY sound appealing to eat (Be honest). So now we have that covered i'm going to tell you some reasons why YOU should avoid Genetically Modified Organisms (GMO's). First of all GMO's are unhealthy, according to the American Academy of Environmental Medicine. They cite animal studies showing organ damage, gastrointestinal and immune system disorders, accelerated aging, and infertility. Second of all, GMO's contaminate forever. GMO's cross pollinate and their seeds can travel. It is impossible to fully clean up our contaminated gene pool. Self propagating GMO pollution will outlast the effects of global warming and nuclear waste. The impact is huge, threatening the health of future generations. Third of all, GMO's increase herbicide use, most GMO crops are engineered to be “Herbicide tolerant”―they deadly weed killer. Monsanto, for example, sells Roundup Ready crops, designed to survive applications of their Roundup herbicide. Between 1996 and 2008, US farmers sprayed an extra 383 million pounds of herbicide on GMO's. Overuse of Roundup results in “superweeds,” resistant to the herbicide. This is causing farmers to use even more toxic herbicides every year. ♒️ Hope this helps!♒️ ↪️ Autumn ↩️
Final answer:
Genetically modified organisms (GMOs) have been a topic of debate in recent years. Here are the main arguments for and against GMOs: Arguments FOR GMOs: Increased crop yield and quality, reduction in pesticide use, enhanced nutrition. Arguments AGAINST GMOs: Potential environmental risks, unknown long-term health effects, lack of transparency and choice.
Explanation:
Genetically modified organisms (GMOs) have been a topic of debate in recent years. Here are the main arguments for and against GMOs:
Arguments FOR GMOs:
Increased crop yield and quality: GMOs are designed to resist pests, diseases, and environmental conditions, which can result in higher crop yields and better quality.Reduction in pesticide use: Some GMO crops are engineered to produce their own insecticides, reducing the need for chemical pesticides.Enhanced nutrition: GMOs can be designed to have increased levels of certain nutrients, such as vitamins or minerals, which can help address nutrient deficiencies in specific populations.Arguments AGAINST GMOs:
Potential environmental risks: There are concerns that GMOs could harm other organisms or ecosystems through cross-breeding or unintended ecological effects.Unknown long-term health effects: Some argue that the long-term health effects of consuming GMOs are not fully understood, and there could be potential risks to human health.Lack of transparency and choice: Critics argue that consumers have the right to know if their food contains GMOs and be able to make informed choices about what they consume.All animals share several common characteristics. Which is a characteristic shared by all animals?
Question 2 options:
endoskeletons and muscles
sensory organs and backbones
multi-cellular bodies
exothermic blood systems
Answer: multi-cellular bodies
Explanation: All animals are multi-cellular. This means that they are made up of many cells/cellular systems. Single-celled organisms, on the other hand, are not considered animals. Those would mostly be too tiny to see without the aid of a microscope tool. The other answer choices would not fit, because not all animals have bones (endoskeletons or exoskeletons). Also, only some animals are cold blooded, which is what the last answer choice has to do with.
All animals share the characteristic of having multi-cellular bodies. This feature differentiates them from unicellular organisms. Other characteristics like endoskeletons, sensory organs, backbones, and exothermic blood systems are not universal to all animals.
Explanation:The characteristic shared by all animals is that they have multi-cellular bodies, this means they are made up of more than one cell. This feature distinguishes them from unicellular organisms, such as bacteria, which consist of a single cell. The options of endoskeletons and muscles, sensory organs and backbones, and exothermic blood systems are not common to all animals.
For example, jellyfish do not have endoskeletons or muscles, many invertebrates don't have backbones, and not all animals have exothermic blood systems.
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fungi are different from plants in that fungi
a. secrete enzymes
b. decompose organic waste
c. contain dna
d. have cell walls
Complete the possible outcomes for each generation in the pedigree chart.
bb Bb BB
Answer:
In the first generation left to right Bb and bb and in the second generation BB will be the right outcomes.
Explanation:
In the first generation the four gamets will be formed - B, b, b, and b so the outcomes will be Bb, bb, bb, and Bb. In the second generation, the four gamets will be formed - B, B, B, and b and possible outcomes will be- BB, BB, Bb, and Bb. So in the given chart the possible outcomes in the first generation will be Bb and bb in the box from left to right and in the second generation BB in the box.
2 Which of the following best describes how comparative anatomy can be used to determine the evolutionary relationship between two organisms?
Two species that have few physical traits in common do not share a common ancestor and most likely evolved from different species.
Answer:
its c
Explanation:
i took the test
An error in the DNA checkpoint by DNA polymerase during DNA replication could pass on to future offspring only if?
the mutation occurred in the gametes
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Bacteria is the driving force behind the ____ cycle a. solar b. heat c. nitrogen d. water
The Nitrogen cycle involves living organisms needing gas and involves
plants to create chlorophyll in plants. It also needs species of bacteria to
convert nitrogen.
answer is C
A piece of iron at 25 °C is dropped into a glass of water at 15 °C. Which statement is correct?
Heat will flow from the iron to the water in the glass until both reach the same temperature.
Heat will flow from the water in the glass to the iron until both reach the same temperature.
The final temperature of the water in the glass and the iron will be 25 °C.
The final temperature of the water in the glass and the iron will be 15 °C.
When a piece of iron at 25 degrees Celcius is dropped into a glass of water, whose temperature is 15 degrees Celcius, the heat will flow from the iron to the water in the glass until both reach the same temperature. This is because the one that is warmer would release more energy to the colder one.
Answer: Heat will flow from the iron to the water in the glass until both reach the same temperature
Credit to: @Samuelkenobi11
Final answer:
Heat will flow from the piece of iron at 25 °C to the colder water at 15 °C until both substances reach the same temperature due to the second law of thermodynamics.
Explanation:
When the piece of iron at 25 °C is dropped into a glass of water at 15 °C, heat will flow from the iron to the water in the glass until both reach the same temperature. This is a consequence of the second law of thermodynamics, where heat naturally flows from a hotter object to a colder one until thermal equilibrium is reached. Since the iron is at a higher temperature, it will lose heat to the water, which is at a lower temperature.