Will notices that crickets seem to chirp more frequently at night in June than they do in October. He asks himself, "How do temperature changes affect how often crickets chirp"? If he were to perform an experiment, which of these statements would be the best hypothesis?
A)
Crickets are inactive in October.
B)
Do crickets like warm weather better than cold weather?
C)
Crickets chirp more frequently as temperature increases.
D)
Crickets chirp for many reasons, and temperature is probably one reason.

Final answer:

Coral reef destruction is primarily caused by climate change-induced global warming and human activities, leading to bleaching and habitat degradation. Ocean acidification, pollution, and overfishing exacerbate these issues, significantly harming coral ecosystems and biodiversity, as well as impacting coastal economies.

Explanation:

The causes of coral reef habitat destruction are multifaceted, with both climate change and human activity playing significant roles. The primary cause of coral damage is the increase in water temperatures resulting from global warming. This heightened temperature forces the corals to expel their symbiotic algae, leading to bleaching. Besides, human population growth leads to increased runoff of sediment and agricultural chemicals, which clouds the water and disrupts coral ecosystems. Overfishing compounds the issue by eliminating fish species that help control the predator species consuming corals.

Additionally, the rising levels of CO₂ in the atmosphere, which result in ocean acidification, impede the calcification process that is critical for corals to maintain their hard calcium carbonate skeletons. Without this structure, corals and their dependent species decline in numbers. Not to dismiss other contributing factors such as poor fire management, pollution, mining, and storm damage, which together with overfishing can bring about irreversible changes to coral habitats and the broader ecosystem.

A.)The Mesohippus is older than the Pliohippus

Answer:

The bones of Mesohippus is older than Pliohippus

Explanation:

Pliohippis and Mesohippus are both an extinct genus that occurred in the evolutionary path of the horse. Pliohippus occurred about 15-20 million years back during the middle Miocene period, whereas Mesohippus occurred about 30-40 million years back ranging in age from the Middle of Eocene period to the Early Oligocene period.

This means that the Mesohippus occurred first, and it has undergone evolution, creating the Pliohippus.

Thus, it can be concluded that the bones of Mesohippus after their death are deposited in the rock layers and above this layer, the following rock layer contains the bones of Pliohippus. So the rocks containing Mesohippus are older than the rocks containing Pliohippus.

Hence, the bones of Mesohippus is older than Pliohippus.

Your best answer would be Lava

Farmers can use their knowledge of these limiting factors to increase crop growth in greenhouses. They may use artificial light so that photosynthesis can continue beyond daylight hours, or in a higher-than-normal light intensity. The use of paraffin lamps inside a greenhouse increases the rate of photosynthesis because the burning paraffin produces carbon dioxide, and heat too.

Final answer:

Farmers aim to maximize photosynthesis in crops to increase food production and improve crop yield. Photosynthesis, reliant on sunlight, water, and CO₂, is crucial for plant growth and fruit production, impacting the overall success of agricultural activities.

Explanation:

Farmers want their plants to do as much photosynthesis as possible because it directly impacts food production and overall crop yield. Photosynthesis transforms sunlight into chemical energy, which plants use to grow and produce fruits, vegetables, and grains. The process is dependent on various factors including sunlight, water, and carbon dioxide (CO₂). Optimal photosynthesis conditions can be influenced by the environment's abiotic components, leading to high biomass production, which in turn supports a richer harvest and provides valuable resources such as habitat and food to other living beings. Specifically, crops like tomatoes require maximum sunlight for significant production, highlighting the importance of photosynthesis in agricultural success. In addition to sunlight, water plays a crucial role in photosynthesis by participating directly in the chemical process and helping to transport nutrients throughout the plant. However, both too little and too much water can adversely affect photosynthesis rates and plant growth. By maximizing photosynthesis, farmers can improve plant health, increase biomass production, and ultimately enhance the quantity and quality of their crops, effectively supporting both human and animal communities.

Final answer:

The flow of energy from the sun to the reaction center in photosynthesis involves multiple steps, including pigment absorption, energy transfer, and electron transport.

Explanation:

The flow of energy from the sun to the reaction center in photosynthesis involves multiple steps.

This flow of energy enables the conversion of sunlight into chemical energy that can be used by the plant for various processes.

If a cell doesn't complete its G1 phase before cell division, it may lead to genetic abnormalities, cell death, increased risk of cancer, or impaired cell function.

If a cell does not complete its G1 phase prior to cell division, several problems may arise. G1 phase is an important part of the cell cycle where the cell grows in size and checks for any DNA damage before proceeding to replicate its DNA. Without completing G1 phase, the cell may not have enough time to properly grow and check for errors in its DNA, leading to potential genetic abnormalities in the resulting daughter cells. This can result in various issues such as cell death, increased risk of cancer, or impaired cell function.

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Negative ions, or anions, are always larger than the neutral atoms from which they are formed because they gain one or more electrons and their electron cloud expands.

The question asks which of the following are always larger than the neutral atoms from which they are formed? The options given are: A. positive ions, B. negative ions, C. cations, and D. none of the above.

When a neutral atom gains one or more electrons, it forms a negative ion or anion, which is always larger than the parent atom. Conversely, when a neutral atom loses one or more electrons, it becomes a positive ion or cation, which is always smaller than the parent atom. Therefore, the correct answer to this question is B. negative ions, as they are the ones that are always larger than the neutral atoms from which they are formed.

Answer:

b

Explanation:

Answer:

It is estimated that 25% of coral reefs are threatened by pollutants from agriculture. Unsustainable and intensive agriculture transmits sediment, inorganic and organic nutrients and chemical contaminants to waterways, aquifers and the ocean.

Explanation:

Coral reefs are the exoskeletons that are present in the oceanic ecosystem. The fertilizers and pesticide run-offs from the agricultural field lead to acidification and bleaching.

The increased concentration of carbon dioxide in oceanic water causes a decrease in the pH of the water and hence results in acidification and bleaching.

The pesticides and fertilizers used in agricultural fields run off the soil surface by the rain and reach the oceans and destructs the corals due to inorganic and organic chemicals.

These chemicals alter and harm the structural composition of the coral reefs and also the organisms living in them by increasing the acidic concentration.

Therefore, the agricultural run-off containing pesticides and fertilizers affects the reefs.

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Answer:

The correct answer is B. G2

Explanation:

Have a good day

SOS:

The answer is genetic recombination!

Hope this helps!

Answer:genetic recombination

Explanation:

The best description of an individual enzyme is that it lowers the activation energy of a reaction and affects only very specific reactions. Enzymes are highly specific biological catalysts that help accelerate reactions without being consumed in the process.

The statement that BEST describes an individual enzyme is: C. it lowers the activation energy of a reaction and affects only very specific reactions. Enzymes are biological catalysts that accelerate biochemical reactions by lowering the activation energy required for the reaction to occur. This means that they reduce the energy needed for reactants, known as substrates, to react with each other. Enzymes are highly specific; they only bind to particular substrates at their active site and facilitate very specific chemical reactions without being consumed in the process.

One of the key functions of an enzyme is to form an enzyme-substrate complex that can lower the activation energy by contorting the substrate molecules in a way that facilitates bond-breaking, helping reach the transition state. This process may involve the enzyme temporarily forming covalent bonds with the substrate. It is important to note that the enzyme will return to its original state after the reaction, ready to catalyze another reaction.

Answer: c. they are very productive agriculturally

Explanation:

The laterite soil is reddish to yellow in color. It is typically found in hot and wet tropical areas. The soil exhibit a lower concentration of nitrogen, potassium, lime, phosphorus and magnesia. But soil contains high concentration of oxides of iron, manganese and titanium. It is not suitable for agriculture as the soil lacks essential elements required for the growth of crops like nitrogen, potassium and phosphorus. The soil is suitable for making bricks.

On the basis of the above explanation, c. they are very productive agriculturally is not true for laterite soils.

Answer:

I believe the answer is (D), by plants.

Hope this helps :)

Answer: Scientific method

The scientific method is a process in which the scientist performs an experiment and it is used to explore the natural phenomena in the world and answer question in a logical manner.

It involves the formulation of a hypothesis, then that hypothesis is used to predict the phenomena. After that based on that prediction, a scientist performs an experiment to support the hypothesis.

Answer:

The correct answer would be C. Humans are more closely related to chimpanzees than carp.

According to information provided, the cytochrome c of humans is identical to that of chimpanzee. Thus, we can conclude that chimpanzees are close relative of humans.

In contrast, the difference between the cytochrome c of humans and carp is 17%. Thus, the humans and carp are not as closely related as humans and chimpanzees are.

The phylogenetic relation of humans and garden snail would be the least as compared to the relation between humans and any other organism given in the chart.

Based on the data presented in the table, we can draw the conclusion that humans are more closely related to chimpanzees than to carp. Therefore, option (C) is correct.

Chimpanzees are considered to be the closest living relatives of humans, with whom they share a common ancestor that lived between 6 and 8 million years ago. Both species belong to the same family, Hominidae, and share many physical and behavioral characteristics.

The genetic makeup of chimpanzees and humans is also remarkably similar, with over 98% of their DNA sequences being identical. This similarity suggests that chimpanzees and humans have evolved from a common ancestor relatively recently, and that we share a long history of shared genetic and evolutionary processes. Understanding the similarities and differences between chimpanzees and humans is important for studying human evolution, biology, and behavior.

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Answer:

The height of the offspring will not change

Explanation:

Separation of oxygenated and deoxygenated blood in the heart is critical for efficient circulation of oxygen and carbon dioxide. The heart's four chambers, coronary circuit, and rhythmic beating pattern (cardiac cycle) allow for this essential process to occur continually, providing the body with life-supporting substances.

Keeping oxygen rich (oxygenated) blood separate from oxygen poor (deoxygenated) blood in the heart is crucial for the efficient movement of oxygen and carbon dioxide around the body, enabling us to maintain our bodily functions and, importantly, enabling us to move quickly when needed. This division and specialization of functions is achieved via our four-chambered heart. The right side of the heart pumps deoxygenated blood towards the lungs in the pulmonary circuit, where it becomes oxygenated again. On the other side, the left side of the heart drives the oxygenated blood to the rest of the body via the systemic circuit.

The heart itself is a highly active organ and has its own unique blood supply, the coronary circulation, ensuring steady supply of oxygen and nutrients and waste removal even when the heart is contracting. Blockage of these coronary arteries can lead to serious health problems, including heart attacks.

In order to ensure this continual circulation, our heart follows a regulated beating pattern known as the cardiac cycle. This cycle encompasses the process of filling the heart with blood and pushing it out, controlled via electrical signals promoting heart muscle contraction and relaxation. This system allows the heart to beat over 100,000 times a day, providing the essential movement of critical life-supporting substances around our body.

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