Two heterozygous purple flowering pea plants are crossed. If purple is dominant over white, what are the expected phenotypic
results?

Explanation:

Photosynthesis produces glucose and O2 from inorganic CO2, light energy and water.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

These end products, namely O2 and glucose are then used in respiration...

C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

The CO2 and H2O produced as waste in respiration can then be incorporated at the beginning of photosynthesis. Thus the reactions are cyclic- they feed into each other.

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally,

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate( through the process of glycoysis). The electron transport chain, in which oxygen functions as the terminal electron acceptor occurs in both plants and animals.

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Answer:

During translation tRNA containing the anticodon sequence combine with the mRNA codon

Explanation:

During translation, mRNA codons pair up with tRNA (transfer RNA) molecules' complementary anticodons.

Specific amino acids are carried by tRNA molecules, which also have an anticodon region that can base pair with the associated mRNA codon. The three-nucleotide sequence known as a triplet code, or mRNA codon, specifies an amino acid or marks the completion of translation.

Each mRNA codon is paired with a particular tRNA anticodon, allowing the right amino acid to be delivered to the ribosome's developing polypeptide chain.

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In active transport particles move by making use of energy in the form of ATP.

Explanation:

Unlike in passive transport particles have to move against the concentration gradient in active transport. Thus particles require energy to do so and this energy is in the form of ATP. Osmosis and simple diffusion are examples of passive transport where substances move from a region of high concentration to a region of low concentration.

This movement is down the concentration gradient. In active transport particles move from a region of low concentration to a region of high concentration which is against the concentration gradient. Active transport is of two types.

In the first type called primary active transport energy is directly used in the form of ATP. In the second type called secondary active transport an electrochemical gradient created by ATP is used to facilitate the transport.

The answer to the first question is mucous membranes and skin

The answer to the second question is All of the above

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The natural cause of carbon increases and decreases is plant growth related to weather, which is influenced by natural weather patterns affecting the carbon cycle. In contrast, human activities such as burning fossil fuels and deforestation are major contributors to the rising levels of CO2 and other greenhouse gases. Hence, the correct option is c.

The natural cause of carbon increases and decreases referred to in the question is plant growth related to weather. This process is part of the carbon cycle, where plants absorb carbon dioxide (CO2) from the atmosphere during photosynthesis, which decreases atmospheric carbon levels. Conversely, when plants die and decompose, or when they are consumed by animals, the carbon is eventually released back into the atmosphere, leading to an increase in carbon levels. Natural factors such as weather can influence plant growth significantly, causing fluctuations in carbon uptake and release.

On the other hand, human activities such as the burning of fossil fuels, deforestation, and cement production are among the major contributors to the increase in greenhouse gas levels, particularly CO2. These activities disrupt the natural carbon cycle and have been linked to global climate change. Slash-and-burn agriculture, and the clearing of land for new development, are examples of human activities that directly contribute to the increase in CO2 concentration in the atmosphere.

According to the definition of science, it is a process and application of knowledge to an understanding of the natural and social worlds, as well as a methodical technique dealing with evidence.

Science is derived from the Latin word "scientia," which meaning "knowledge." Science is defined as the act of pursuing knowledge. It mostly deals with factual fact findings obtained via verified research studies, as well as fields of science founded in biology, physics, and chemistry.

Science is described as the observation, understanding, inquiry, and experimental and theoretical approaches to any natural phenomenon that explain it. It can be a method of learning about the natural world by observing and thinking.

Thus, Science primarily deals with evidence, which is supported by theory and provides knowledge of any particular subject.

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A range of healthy body weight relies on a variety of factors including the ratio of height to weight (BMI), skinfold measurements (body fat percentage), and ratio of waist to hips (fat distribution measurement).

The factors typically used to determine the range of a healthy body weight include the ratio of height to weight, skinfold measurements, and the ratio of waist to hips.

The ratio of height to weight is also known as Body Mass Index (BMI). It is a useful measure to check if your weight is in a healthy range for your height. This is calculated by dividing your weight in kilograms by the square of your height in meters.

Skinfold measurements are taken to measure body fat percentage. Fat is pinched and measured using calipers at various parts of the body, and a formula is used to calculate body fat percentage.

The ratio of waist to hips or waist-hip ratio (WHR) is a measurement of fat distribution. It helps to identify if more fats are stored around your waist or hips, which could raise your risk for some health problems.

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Answer:

Your correct answer is B. publish the theory in a science magazine to let people know about it.

Explanation:

Answer:

A) allow other scientists to repeat the experiments to verify the results

Explanation:

Got it right on the test. Plus, by allowing scientists to repeat the experiments help make it become a theory or law. Just because you publish it in some magazine won't make your theory reliable. You need repetition, experimenting, and proof.

Answer:

intrusive

Explanation:

The  type of rock that is pictured here is intrusive rock

Igneous rock known as intrusive rock, sometimes known as plutonic rock, is created when magma is driven into older rocks at a depth in the Earth's crust. The resulting rock slowly hardens below the surface of the Earth, however erosion may eventually expose it. Numerous types of rocks are formed by igneous intrusions.

See extrusive rock as well. Magma that has permeated pre-existing rock and crystallized and solidified underground can create intrusions like volcanic necks, sills, batholiths, and laccoliths. One of the two ways igneous rock can develop is by intrusion. Extrusion, like that of a volcanic eruption or other similar event, is the other.

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1. The general trend of human population growth is that the growth rate of population is increasing over the years .

2. Countries of the world differ in birth rates, death rates and age structure of population and this factor explains why population  in different countries grow at  different rates.

3. Demography is the study of human population in terms of births, deaths etc is called demography.

4. Demographic transition is the shift from high birth and death rates to high birth and low death rates and finally to low birth and death rates. Demographic transition reduces the rate of population growth of a country.

5. Age structure diagram contains data about individuals who belong to the younger age group. Once they become mature they will contribute to population growth and thus studying the age structure gives an idea the trends of future population growth.

1. The general trend of human population growth that has occurred over time is Growth rate.

2. The factors that explains the  populations in different countries grow at different rates is Birth rates, Death rate and Age structure of population.

3. Demography is the Study of human population.

4. The demographic transition shift from high birth and death rates.

5.  The age-structure diagrams can help predict future population trends helps youthful age bunch.

Answer 1:

The general trend of human population growth is that the growth rate of population is increasing over the years .

Answer 2:

The factors that explains the  populations in different countries grow at different rates is :

Birth rates

Death rates

Age structure of population.

Answer 3:

The Demography is the study of human population in terms of births, deaths etc.

Answer 4:

Demographic transition is the move from high birth and passing rates to high birth and moo passing rates and at long last to moo birth and passing rates.

Demographic transition diminishes the rate of populace development of a nation.

Answer 5:

Age structure chart contains information almost people who have a place to the more youthful age bunch.

Once they ended up develop they will contribute to populace development and hence examining the age structure gives an thought the patterns of future populace growth.

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Answer:

An environmentalist wishes to preserve the environment.

Explanation:

The Environmentalist is the professional responsible for dealing with the issues of preserving the environment and the conditions of life and existence on the planet. In short, an environmentalist wants to preserve the environment.

An Environmentalist is responsible for assessing the extent of beneficial or harmful changes to the environment caused by human activities.

It is under the responsibility of an Environmentalist to participate in studies that aim to survey the characteristics of the environment to analyze their reactions to possible changes, prepare reports on the impacts of certain activities on the environment, propose, program and monitor measures or actions preservation of the environment in urban and rural areas, monitors water, air and soil quality, seeks to control the impact that activities and works will have on the environment, prepares land use plans and reports on environmental impacts , offers advice to companies, public bodies for the preservation of the environment, creates projects to restore areas degraded by industrial, agricultural and mineral extraction activities, with sustainable development projects.

The part of the blood that closes a wound is platelet and the correct option is option C.

Platelets are small, disk-shaped blood cells that play a crucial role in the clotting process. When a wound occurs and blood vessels are damaged, platelets are immediately activated and form a clot to close the wound and prevent excessive bleeding.

The process begins with platelets adhering to the exposed collagen fibers of the damaged blood vessel walls. This adhesion is facilitated by specific receptors on the platelet surface. Once adhered, platelets undergo a series of changes, releasing chemical signals that attract more platelets to the site of injury.

As platelets aggregate, they form a plug that seals the damaged blood vessel. In addition to their adhesive and aggregating properties, platelets release clotting factors, such as thromboxane and fibrinogen, which promote the formation of a fibrin meshwork. The fibrin meshwork strengthens the platelet plug and traps red blood cells, creating a stable blood clot.

Thus, the ideal selection is option C.

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Answer:

True. Energy is needed to form glucose bonds.

Solar energy is required to synthesize a molecule of glucose during the reactions of photosynthesis. In photosynthesis, light energy from the sun is initially transformed into chemical energy that is temporally stored in the energy carrier molecules ATP and NADPH

Answer:

.

Explanation:

Edwin Hubble discovered the expansion of the Universe by combining observations of galaxy distances with the redshifts seen in their spectral lines, implying their recession due to the expanding fabric of space, known as Hubble's Law.

Edwin Hubble determined that the Universe is expanding by studying the distances to galaxies and their spectral lines. He observed a correlation known as Hubble's Law, which stands for the concept that galaxies further away from us are moving away at greater speeds. When he combined measurements of distances with the observed redshifts in the spectral lines of these galaxies, he effectively applied the Doppler Effect, which suggested that these galaxies were receding from the Milky Way. The redshift of the spectral lines indicated that as the light from these galaxies travels to us, it stretches, correlating with the idea of the universe's expansion. This pattern of the galaxies' recession velocities being proportional to their distances laid the foundation for the belief in an increasing scale of space itself, akin to marks on an inflating balloon moving apart from each other. This was revolutionary in our understanding of the cosmos and laid the groundwork for modern cosmology.

Answer:

Complete dominance.

Explanation:

In complete dominance, the two alleles interact in such a way that in heterozygosis the expression of one of them is phenotypically "visible" (the dominant), while the other is hidden (recessive). The heterozygote is phenotypically identical and indistinguishable from the dominant homozygote.

There are two pairs of better known genes that control the color of the Labrador's coat. The "B" gene is dominant and responsible for the black coat color, the "b" gene is recessive and responsible for the chocolate coat color. The "e" gene is responsible for the color of the yellow coat, and for this reason it must always appear homozygous (ee), which will inhibit the expression of the other gene pair. So the possible genotypes for the black coat are the following BBEE, BBEe, BbEE, BbEe, the possible genotypes for the chocolate coat are bbEE, bbEe, and the genotypes for the yellow coat are BBee, Bbee, bbee. So if the mating is done with two double heterozygous animals (BbEe) you can have puppies of the three coat colors in the litter.

However, if complete dominance occurs, the puppies will be black with a black face, because the gene for these characteristics is dominant. In that case, there was complete dominance.

Answer:

it is population now give me my crown

Explanation:

Answer: The correct answer is ecosystem

Explanation: I did this on CK-12 it’s the right answer.

In pinus species male cone matured earlier than female cone because it male cone producing more pollen grain.  

Explanation:

Pinus species don't have flowers who has nectar and pollen. Pine trees can’t attract bees and butterflies for pollination. Wind play vital role for pollination in pinus species tree.

The male cones produce producing pollen grains, which drift to the female cones on other trees. After few years mature the non-fertilized female pine cone mature to become the woody cones  

Answer and Explanation:

Interphase is the longest stage of the cell cycle and can be divided into 3 phases: G1 phase, S phase, G2 phase. The newly formed cell matures during the G1 phase. If the cell is going to divide, it enters the S (synthesis) phase where the DNA is replicated and the G2 phase where more growth occurs. The cells undergoing meiosis have only one interphase. After telophase I the cell enters into prophase II without having interphase II.

Answer:

live microorganisms naturally found in or supplemented to food products.

Explanation:

Chlorine

Explanation:

I Got 5/5 Correct

Final answer:

Teddy's organization aims to decrease CFCs in the atmosphere in support of the Montreal Protocol's mission to restore the ozone layer, with signs of recovery noted despite challenges.

Explanation:

Teddy's organization is working to reduce the concentration of CFCs in the atmosphere. The initiative aligns with the goals of the Montreal Protocol, which is a global effort established in 1987 to phase out the use of CFCs that deplete the ozone layer.

Despite challenges, like the need for developing-country participation and the management of CFC "banks", there have been indicators of success such as observable signs of ozone recovery. Replacements for CFCs include hydrofluorcarbons (HFCs) and hydrochlorofluorocarbons (HCFCs), which are more benign to the ozone layer.

Hunter-gatherers:

Agricultural Revolution:

Industrial revolution  

Final answer:

The hunter-gatherer lifestyle did not heavily impact the environment, whereas the Agricultural and Neolithic Revolutions led to changes in land use, social organization, and significant environmental manipulation. The Industrial Revolution further transformed human activity with mass production, causing notable increases in atmospheric CO2 levels.

Explanation:

Throughout history, the way humans have interacted with their environment has dramatically evolved. The hunter-gatherer societies had minimal impact on the environment as they fitted seamlessly into ecological food chains. However, the advent of the Agricultural Revolution around 3000 B.C.E. introduced permanent tools and farming tactics like crop rotation and the use of waste as fertilizer, paving the way for larger human settlements, trade, and increased environmental manipulation.

The Neolithic Revolution signified a pivotal shift from hunter-gatherer lifestyles to agriculture, leading to larger populations, specialization of labor, and sophisticated settlements such as Jericho and Çatalhöyük. This transition necessitated changes in land use, social organization, wealth accumulation, and even religious practices. However, not all societies embraced farming due to environmental unsuitability or perceived disadvantages.

The Industrial Revolution brought about significant changes in production, leading to widespread environmental impacts including an increase in global atmospheric carbon dioxide concentration. This remarkable era transformed human activity and initiated the mass manufacture of goods, which had global repercussions, shifting the world into a new ecological era.

Final answer:

Amino acids are used as an energy source instead of glucose in situations of carbohydrate and fat deficiency, such as fasting or starvation. They are converted into intermediates that enter the Krebs cycle for ATP production, but this can lead to muscle wasting and tissue damage if prolonged.

Explanation:

Amino acids are typically utilized for protein synthesis and other nitrogenous substances like nucleotides, rather than as a primary energy source. However, in situations where there is a deficiency of carbohydrates and fats, such as during fasting or starvation, amino acids can be mobilized as an alternative source of energy. This is because amino acids can be converted into metabolic intermediates that enter the Krebs cycle, leading to the production of ATP.

In normal conditions, glucose is the preferred energy source, and amino acids are reserved for growth and repair processes. Yet, during periods of prolonged fasting or insufficient caloric intake, the body can resort to breaking down proteins into amino acids for energy, which can lead to muscle wasting and tissue damage if persisted for extended periods. This shift happens because the body has no mechanism to store excess amino acids; they must either be used for protein synthesis or be catabolized for energy and excretion.

Answer:

Jointed legs

Explanation:

Members of the phylum arthropoda have jointed appendages hence the name arthropoda. They posses many paired appendages which are specialized for various functions. The jointed legs are used mainly for locomotion.

Answer:

jointed legs

Explanation:

My answer isn't as good as the other but i still like to participate.

Answer: Swim bladders of fish at depth help maintain buoyancy by regulating gas levels.

Answer:

The correct option is C. Recycling nutrients

Explanation:

The nature benefits the humans in numerous ways. The benefits which the environment and all the natural ecosystems present have on humans is termed as ecosystem services. For example, the forest ecosystem is a natural ecosystem that benefits humans in numerous ways including the provision of wood for making houses etc.

Supporting services can be described as an ecosystem service by which essential components or services are continuously provided by the natural ecosystems to the humans. For example, recycling of nutrients.  

Answer:

C C C C C C C C C C C C

Explanation:

Answer:

Answer for third question.

Explanation:

The permanent destruction of forests to use the land or trees is known as deforestation. Deforestation takes place due to a number of reasons like natural causes and human activities. The main cause for deforestation is  overpopulation. Overpopulation results in an increase in global needs which leads to expansion of infrastructures, industries, agricultural needs and thus deforestation. Other reasons for deforestation are infrastructure expansion , logging for wood based industries, farming, mining etc. Deforestation causes drastic changes in the environment. The environmental problems which results from widespread deforestation include climatic changes, loss of biodiversity, flooding, increase in greenhouse gas emission, acidic oceans, air and water pollution etc.  Deforestation results in global warming.  Planting trees reduce the effects of deforestation by preventing soil erosion and pollution. The other ways to lessen the effects of deforestation includes recycling and using of recycled products. Reduce the usage of paper and use wood alternatives like hemp, bamboo, wood composites etc for construction and remodeling products. Also we can raise awareness in the community against deforestation through campaigns

Answer:

Earth's atmosphere is divided into five main layers: the exosphere, the thermosphere, the mesosphere, the stratosphere and the troposphere.

Explanation:

A spaceship departing from Houston, Texas, to Mars will move through the troposphere, stratosphere, mesosphere, and thermosphere, in that order, before entering the exosphere and finally leaving Earth's atmosphere.

The spaceship launched from Houston, Texas, aiming for Mars will pass through four main layers of Earth's atmosphere. These layers are distinct in terms of their composition and physical properties as the spaceship ascends from the Earth's surface into space.

After exiting the thermosphere, the spaceship will transition through the exosphere, where the Earth's atmosphere merges into interplanetary space. Each layer presents unique challenges and phenomena as the spaceship ascends, providing a fascinating journey from the Earth to the cosmos.

Answer:

B) diffusion

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