How do particles move when a surface wave passes through a medium?
A. Parallel to the direction of wave motion
B. Perpendicular to the direction of wave motion
C. Both parallel and perpendicular to the direction of wave motion
D. Neither parallel nor perpendicular to the direction of wave motion

A very dry season would interrupt in the migration of Christmas island crab.

Hence, the dry season will interrupt in the spawning as it will delay the migration of Christmas island crab.

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Answer:

A. increase its number of cells

Explanation:

The cell cycle allows multicellular organisms to grow and divide and single-celled organisms to reproduce.

Answer:

A is correct

Explanation:

The decomposers in the food web are organisms like fungi and bacteria that break down dead organic matter and return nutrients to the soil. They are important because they help in the decomposition process, which is essential in nutrient cycling and soil formation, and they play an important role in the food web by breaking down dead organic matter into simpler compounds that can be reused by other organisms.

Here is an example of a food web that includes decomposers:

Grass → Grasshopper → Rat → Snake → Hawk

In this food web, the decomposers would be organisms like fungi and bacteria that break down the dead bodies of the grasshopper, rat, snake, and hawk and recycle the nutrients back into the soil. Without decomposers, dead organic matter would accumulate and nutrients would be locked up in dead bodies, making them unavailable to other organisms in the food web. This would have a detrimental effect on the ecosystem as a whole.

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Answer:

needed for respiration for active transport

Explanation:

oxygen is needed for respiration which provides energy for active transport of the ions into the plant.

active transport is needed to move the ions into the plant as there are higher levels of concentration already in the cell sap.

hope this helps :)

Hoagland found that some ions were absorbed only if oxygen was bubbled through the pond water needed for respiration for active transport.

Oxygen has been needed for respiration which provides energy for active transport of the ions into the plant and active transport has needed to move the ions into the plant as there are higher levels of concentration already in the cell sap.

During aerobic cellular respiration, glucose reacts with oxygen, forming ATP ( Adenosine triphosphate) that can be used by the cell. Carbon dioxide and water are created as byproducts. The overall equation for aerobic cellular respiration is in cellular respiration, glucose and oxygen react to form ATP ( Adenosine triphosphate).

Adenosine triphosphate has an organic compound which gives energy to living organisms to drive many operations in living cells. such as muscle contraction, muscle pumps, nerve impulse propagation, condensate dissolution, and chemical synthesis.

Therefore, Hoagland found that some ions were absorbed only if oxygen was bubbled through the pond water needed for respiration for active transport.

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The factor that is an endogenous factor is: d. Decision as to which herbicide would be best given the farm's IPM (Integrated Pest Management) strategy.

An endogenous factor refers to a factor that originates from within the system or process being studied. In the given options, the endogenous factor is d. Decision as to which herbicide would be best given the farm's IPM (Integrated Pest Management) strategy.

This factor is influenced by internal considerations and decisions made within the system itself. On the other hand, options a, b, and c are exogenous factors because they are external to the system and can affect the system but are not directly determined by it.

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Answer:

The heat from the sun warms the water in the lake which evaporates and turns into water vapours. The water in the tree also rises into the atmosphere through a process, transpiration.

The water vapours rise into the atmosphere and forms clouds.

The water vapours in the clouds than condense into liquid water. Soon they'll get heavy and the water will fall down as rain, sleet, or snow.

Some of the rainwater sinks into the ground and is taken in by the roots of trees and plants.  

This process keeps going on and on, and the water keeps shifting between the lake, tree and the sky.

Answer:

Respiration is a chemical reaction that takes glucose (sugar) and oxygen to produce energy. But it also produces water and carbon dioxide as bi-products. Excretion gets rid of carbon dioxide, water, and other, possibly harmful, substances from your body.

Explanation:

Answer:

Excretion cleans up after respiration. Respiration is a chemical reaction that takes glucose (sugar) and oxygen to produce energy. But it also produces water and carbon dioxide as bi-products. Excretion gets rid of carbon dioxide, water, and other, possibly harmful, substances from your body.

Answer:

Mitochondria are organelles in cells that produce energy. Sperm use the energy in the midpiece to move. The tail of the sperm moves like a propeller, around and around. This tail is a long flagella that pushes the sperm forward.

Explanation:

The term used in the treatment of tumors with radiation is "radiation therapy," also known as "radiotherapy" or "radiation oncology."

Radiation therapy is a medical procedure that uses high-energy radiation, such as X-rays or protons, to target and destroy cancer cells within the body.

Radiation therapy is a common treatment modality for various types of tumors, both benign and malignant. It works by damaging the DNA of cancer cells, which hinders their ability to divide and grow. The goal of radiation therapy is to selectively target and kill cancer cells while minimizing damage to surrounding healthy tissues.

Radiation therapy can be delivered externally or internally. External beam radiation therapy involves directing radiation beams from a machine outside the body towards the tumor. This is the most common form of radiation therapy. Internal radiation therapy, also known as brachytherapy, involves placing radioactive material directly into or near the tumor site, delivering a high dose of radiation to the affected area.

Radiation therapy is often used as a standalone treatment or in combination with other modalities like surgery or chemotherapy, depending on the type, location, and stage of the tumor. The specific radiation treatment plan is carefully tailored for each individual patient, considering factors such as tumor size, location, and overall health.

The use of radiation therapy requires a multidisciplinary team of healthcare professionals, including radiation oncologists, medical physicists, dosimetrists, and radiation therapists. They collaborate to develop a treatment plan, ensure accurate delivery of the prescribed radiation dose, and monitor the patient's progress throughout the course of treatment.

It's important to note that the decision to use radiation therapy as a treatment option, as well as the specific approach and dosage, is made by healthcare professionals based on an individual's unique medical situation.

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Answer:

As the Earth warms overall, insects are shifting toward the poles to colonize areas that are warmer than before in the summer months. Yet many of these insects lack the ability to survive the colder winters found in these regions. ... As the days stay warmer later into the fall, insects' bodies get confused.

Explanation:

These morphology traits are indicative of transitional forms in hominin evolution, providing insights into changes in diet, locomotion, and social behavior.

Based on the characteristics mentioned, the topic you are referring to is likely the study of hominin evolution and the morphological traits associated with it. Specifically, these traits are associated with the analysis of fossil remains to understand the evolution of human ancestors.

Canine reduction: This refers to the reduction in size and prominence of the canine teeth in certain hominin species compared to other primates. It is thought to be associated with changes in diet and social behavior.

Lower jaw tooth row shape intermediate between parallel and parabolic: This description pertains to the shape of the dental arcade (tooth row) in certain hominin species. It suggests a transitional form between the more parallel tooth rows of ancestral primates and the more parabolic tooth rows found in modern humans.

Footprints explicitly displaying bipedal patterns: Bipedalism is a key characteristic of hominins and distinguishes them from other primates. Fossilized footprints showing clear evidence of bipedal locomotion provide insights into the evolutionary development of human walking.

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Each myofibril consists of repeating units called sarcomeres, which are the functional units of skeletal muscle tissue.

Sarcomeres are made up of two types of protein filaments: thick filaments and thin filaments. The thick filaments are composed mainly of myosin, a motor protein that interacts with the thin filaments to generate muscle contractions. The thin filaments are made up of actin, tropomyosin, and troponin, which regulate the interaction between myosin and actin.

The arrangement of the thick and thin filaments within the sarcomere gives skeletal muscle its characteristic striated appearance. The thick filaments are located in the center of the sarcomere, while the thin filaments are attached to the Z-discs at the ends of the sarcomere.

When the muscle contracts, the myosin heads on the thick filaments bind to the actin on the thin filaments, pulling them towards the center of the sarcomere and causing the muscle to shorten. This process is known as the sliding filament theory, and it is the basis for all muscle contractions.

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Answer:

Explanation:

Got it right on the quiz :))

Answer:

The Valkyrie

Explanation:

Answer:

In Norse mythology, the northern lights, also known as the aurora borealis, were believed to be caused by the goddess Freyja and her daughters, the Valkyries. According to the mythology, Freyja and the Valkyries rode through the sky on their horses, pulling a chariot that was filled with torches. As they rode, the sparks from the torches would fly off and create the northern lights in the sky. In some versions of the mythology, the northern lights were also said to be caused by the fire-breathing dragon that guarded the gates of Valhalla, the Norse heaven. The northern lights were considered to be a sign of the gods' presence and were thought to be a good omen.

Explanation:

Microtubules start at the centrosome and then connect to the kinetochores, which are structures at the central region of chromosomes. The centrosome is the main microtubule-organizing center (MTOC) in most animal cells, whereas plant cells lack a typical centrosome.

The two spindle poles are the central region of a chromosome where a kinetochore is connected. Microtubules are a type of cytoskeletal protein filament that plays a crucial role in the mechanics of cell division.

Microtubules, together with actin and intermediate filaments, form the cytoskeleton, which is the structural framework of the cell. Microtubules also transport vesicles and organelles, support cell shape, and mediate cell signaling.

They are also crucial in cell division, serving as a framework for the mitotic spindle, a structure that segregates chromosomes during cell division.

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The smooth endoplasmic reticulum (smooth ER) got its name due to its appearance under an electron microscope.

Unlike the rough endoplasmic reticulum, which has ribosomes attached to its surface giving it a rough texture, the smooth ER has a continuous, smooth membrane without ribosomes. This membrane-bound organelle plays a crucial role in lipid synthesis, metabolism, and detoxification of drugs and toxins. It also helps regulate calcium ions in the cell and participates in the breakdown of glycogen.

This structure allows the smooth ER to perform specific functions, such as lipid and steroid synthesis, detoxification of harmful substances, and calcium ion storage. The absence of ribosomes and its associated smooth appearance led scientists to name this organelle the smooth endoplasmic reticulum.

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Answer: it's c

Explanation:

The statement that explains how producers are dependent on consumers for their survival is "Consumers produce carbon dioxide for producers to use during photosynthesis," which is present in the option C.

The ecosystem must have both the consumer and the producer, as neither can survive if one gets eliminated from the ecosystem. The producer makes oxygen and glucose by taking the carbon dioxide that is released by the consumer, and in an ecosystem, there are many types of consumers, such as herbivores and carnivores. The consumer depends upon the producer for oxygen and food, while the producer depends upon the consumer and decomposer too.

Hence, the statement that explains how producers are dependent on consumers for their survival is "Consumers produce carbon dioxide for producers to use during photosynthesis," which is present in the option C.

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Incomplete metamorphosis is different than complete metamorphosis because an insect that goes through incomplete metamorphosis fails to go through the pupa stage. The correct option is (B).

Explanation: Complete metamorphosis is a type of insect development that includes four different stages: egg, larva, pupa, and adult. Larvae and adults look and behave differently, making it difficult to recognize them. The vast majority of insects, including butterflies, moths, flies, ants, and beetles, undergo complete metamorphosis.

Incomplete metamorphosis, on the other hand, includes just three stages of development: egg, nymph, and adult. Nymphs are juvenile insects that appear nearly identical to their adult form but are usually smaller and without wings. The vast majority of true bugs, such as stinkbugs, aphids, and cicadas, undergo incomplete metamorphosis.

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Answer:

i am not tottly sure it may be D or c

Explanation:

Answer:

"Plants use cellular respiration to convert glucose into ATP, which is the form of energy cells can use to drive other cellular processes." with this being said, the best answer would probably be A

Explanation:

The type of transcriptional control in operons in which a regulatory protein is an activator and stimulates transcription is called positive control.

The regulatory DNA sequences are the important class of factors that controls the transcription of an operon.

The types of transcriptional control in operons in which a regulatory protein is an inhibitor and inhibits transcription are called negative control.

Therefore, the positive control and negative control of the transcription of an operon depend on the nature of regulatory proteins.

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The gas leaves the atmosphere as plants use it to make sugar.

Hence, D option is correct.

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When a woman first becomes pregnant, the release of hCG from the implanted embryo stimulates the corpus luteum to continue to secrete estrogen, which helps to prevent menstruation.

The corpus luteum is the mass of cells left behind in the ovary after ovulation. These cells produce progesterone, which prepares the lining of the uterus for pregnancy. Estrogen is also produced by the corpus luteum, which helps to maintain the thickness of the uterine lining. Once the placenta is fully formed, it takes over the production of progesterone and estrogen, and the corpus luteum is no longer needed. The release of hCG from the implanted embryo stimulates the corpus luteum to continue to secrete progesterone and estrogen. Progesterone and estrogen help to thicken the uterus lining and prevent the shedding of the uterine lining, which causes menstruation.

This process helps to ensure that the developing embryo has a safe and secure environment to grow and develop during the early stages of pregnancy.

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Answer:

c

Explanation:

Answer: Im positive is true i hope this helps

Explanation: i leanded this last year

Answer:

The solution with the higher concentration of solutes (a.k.a liquids/water)

Homozygous dominant, heterozygous, and homozygous recessive genotypic frequencies are 36%, 48%, and 16%, respectively:

Here: homozygous dominant genotype, AA

Aa for the genotype of heterozygotes

Homozygous recessive genotype for aa, 16 out of the 100 people in the population have the recessive trait, hence there are 16 in the population. Thus, the genotype frequency for aa is 16/100, or 0.16.

The frequency of the A allele plus the frequency of the an allele must equal one because there are only two potential alleles at this locus (A and a). This fact, along with the frequency of the aa genotype, can be used to determine how common the A allele and the aa genotype are:

frequency of aa genotype = q² = 0.16,

frequency of A allele = p = 1 - q

frequency of Aa genotype = 2pq,

q = 0.16 = 0.4

p = 1 - q = 0.6

frequency of Aa genotype = 2pq = 2(0.6)(0.4) = 0.48

frequency of AA genotype = p² = (0.6)² = 0.36

Therefore, the genotypic frequencies are:

AA: 0.36 or 36%

Aa: 0.48 or 48%

aa: 0.16 or 16%

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