After circulating through the channels and cavities of the body of an insect, the hemolymph drains back into the ______ cavity.

Answer:

Dimetrodon (/daɪˈmiːtrədɒn/ (About this soundlisten) or /daɪˈmɛtrədɒn/, meaning "two measures of teeth") is an extinct genus of non-mammalian synapsid that lived during the Cisuralian (Early Permian), around 295–272 million years ago (Ma).It is a member of the family Sphenacodontidae. The most prominent feature of Dimetrodon is the large neural spine sail on its back formed by elongated spines extending from the vertebrae. It walked on four legs and had a tall, curved skull with large teeth of different sizes set along the jaws. Most fossils have been found in southwestern United States, the majority coming from a geological deposit called the Red Beds of Texas and Oklahoma. More recently, fossils have been found in Germany. Over a dozen species have been named since the genus was first erected in 1878.

Explanation:

Flying foxes are crucial pollinators and seed dispersers in the Pacific Islands, therefore their extinction would affect Plant diversity. Their disappearance would have an effect on ecosystem diversity.

For instance, a type of bat called a flying fox is a crucial pollinator in the Pacific Islands. The loss of flying foxes could have a significant impact on other species in that area because blossoming plants would have a lesser chance of reproducing. The loss of animals that consume flowers will have an impact on the entire food chain.

Foxes pose a harm to biodiversity by killing and hunting local species, making them a nuisance animal. have helped a number of small mammal and avian species go extinct. harm poultry, lambs, and young goats, among other livestock.

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Answer:

Ecosystem, community, population, Organism

Explanation:

Organism is a single species

Population is a group of the same species

Community is a group of different populations

Ecosystem is where communities live

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Answer:

Peatlands form in areas where waterlogged conditions slow down the decomposition of plant material and peat accumulates. This accumulation of carbon-rich plant remains has been especially strong in northern tundra and taiga areas where they have helped cool the global climate for more than 10,000 years.

i just had that :D

Explanation:

Explanation:

The central nervous system controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.

Explanation:

central nervous system is made up of the brain and spinal cord. it receives and integrate impulses from the receptors and then relays them to effector organs. it is the centre of co ordination.

Answer:

b Both travel at the same constant speed.

Explanation:

Answer:

Both travel at the same constant speed

Explanation:

Answer:

D

Explanation:

Answer:

Hey!

Your answers are:

CONDENSATION--from a gas to a liquid

DEPOSITION--from a gas to a solid

Answer:

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Answers:

a

Explanation:

To obtain DNA from a crime scene or an individual, the key requirement is cells.

Clothing fibers, fingerprints, and pedigree analysis are not directly related to the collection or extraction of DNA. DNA, the genetic material, is contained within cells of an individual's body.

Therefore, to obtain DNA, one needs a sample that contains viable cells. This can include various biological materials like blood, saliva, hair follicles with the root, skin cells, or semen.

These samples are collected using appropriate forensic techniques and then subjected to DNA extraction processes to isolate and analyze the genetic material.

Through DNA analysis, forensic investigators can establish links between individuals, identify suspects, or provide evidence in criminal investigations.

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Answer:

Neurons aren't able to communicate with each other.

Answer: D

Explanation:

The primary goal of conservation biology is counter the loss of biodiversity

Conservation biology as a discipline aims to provide answers to specific questions that can be applied to management decisions. The main goal is to establish workable methods for preserving species and their biological communities.

The major goal of conservation biology is to: preserve the diversity of living organisms.

the goals of conservation biology Conservation biologists seek to maintain three important aspects of life on Earth: biological diversity, ecological integrity, and ecological health. Biological diversity is a measure of the diversity of all life at all levels of organisation.

Conservation may be classified as either in-situ conservation, which is protecting an endangered species in its natural habitat, or ex-situ conservation, which occurs outside the natural habitat. In-situ conservation involves protecting or restoring the habitat.

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The part of the basilar membrane responds to high frequency sounds is the base .

What is the basilar membrane?

The scala media and the scala tympani, two liquid-filled tubes that go through the coil of the cochlea, are divided by the basilar membrane, a stiff structural component inside the cochlea of the inner ear. When sound waves enter the basilar membrane, they become traveling waves on the membrane, which cause the basilar membrane to rise and fall in response.

Due to the fact that low frequencies induce maximum membrane displacement at the apical end and high frequencies generate maximal membrane displacement close to the base of the cochlea (near the stapes). The wave must travel more to reach the peak if the sound constantly goes from base to apex.

Therefore the part of the basilar membrane responds to high frequency sounds is the base .

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Answer:no

Explanation:

no

Answer:Yes

Explanation:

Answer:

B.

Explanation:

city growth would affect the desert area because populations grow and expansions will be non-stop. Sooner or later the biodiversity od the desert area will be depleted and the species will heavily endangered if not already extinct

Answer:

photometer

Explanation:

Answer:

a photometer

Explanation:

A photometer measures the light coming from 140,000 stars in Kepler's stationary field of view. If a planet transits any star the amount of light from the star is reduced enough so that the photometer senses it and relays the information back to the Kepler team.

Natural selection is the process in which some organisms that show better adaptation to the environment are more likely to produce an offspring. In the case of the exercise, the answer is:

b. Some tuna live in the Pacific Ocean. They are fast, so they are likely to survive and pass on their genes.

It means that as they are better adapted to that environment due to the fact they are fast swimmers, they are likely not only to survive, but to pass their genes and produce offsprings.

Answer:

Spores are produced by bacteria, fungi, algae, and plants. Bacterial spores serve largely as a resting, or dormant, stage in the bacterial life cycle, helping to preserve the bacterium through periods of unfavourable conditions.

Answer: mitosis

Explanation:

Mitosis is the process when a parent cell is divided, and two daughter cells are found after the process. This question says that when the parent cell is split, two daughter cells are the result. This is mitosis, so the answer is D.

Answer:

New type of diseases, weak defense against disease, decrease in product quality and more production of the product.

Explanation:

New type of diseases, weak defense against disease, decrease in product quality and more production of the product are four trends that threatens genetic progress in animal breeding in the face of climate change challenges. Due to new type of diseases the genetic makeup of organism is unable to defend itself due to weak defense mechanism that leads to decrease in quality of that animal.

Answer:

Homologous chromosomes

Explanation:

Homologous chromosomes are chromosomes which contain the same genes in the same order along their chromosomal arms.

The water potential of the cell would be -7 bar and thus, water will move from the cell to the surrounding solution.

Recall that:

Water potential = pressure potential + solute potential

For the plant cell, solute potential = -10, pressure potential = 3

Water potential of the cell = 3-10

                                          = -7 bar

The water potential of the cell is -7 bar while that of the surrounding solution is -10 bar. Thus, the cell has a higher water potential than the surrounding solution.

Recall that water usually moves from the region of high to the region of low water potential. Therefore, water will move from the cell to the surrounding solution.

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Answer:

To determine the flask on basis of the molarity or concentration of the solutions, an individual should design an experiment with the help of using water and dialysis tubes. Dialysis tubes up should be filled with pure water, then seal or closed them from both ends.

Measure the weight and note the mass of each tube, student should stick label the cups with the solutions. Weighing the solutions after leaving them for 8 to 10 hours. The tubes would lose weight as water leave the tube when placed in the solutions due to the principle of diffusion- movement.

The measure of the chemical constituents of the specific solute in a solution is called molar concentration.

For the determination of the flasks based on the molarity and concentration, the experiment should be designed based on dialysis tubes and water.

Therefore, due to diffusion movement, the tubes will lose weight and the concentration of the flasks can be determined.

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Answer: Mutations DUH it keeps saying Mutations over and over

Explanation:

Answer: B

Explanation:

The arrow travels from a cell to a cancerous tumor. The arrow is labeled with mutations so that’s the cause. On a more specific level, cancer is a group of cells but that’s not the cause, because we need cells to survive. Genes are pieces of dna which we also need to survive, because dna makes us who we are. That only leaves mutations

The correct answer to the given question of organism and it's kingdom is option C. Animalia.

Kingdom Animalia is characterized by heterotrophic, eukaryotic organisms that are multicellular and whose cells lack cell walls.

Kingdom citizens Despite the fact that they are unable to produce their own sustenance, which is one of the most distinctive characteristics of plants, Animalia lack a cell wall, which is present in plant cells. With the exception of a few, the majority of animals are mobile, which helps them, among other things, to successfully respond to stimuli and seek food. Additionally, one can go deeper into the structure, sexuality, and growth traits of animals.

The classification diagram for the animal kingdom makes it easier to understand the various groups that animals fall under. The group's knowledge of many animal kingdom facts is also aided by the kingdom chart.

Animals are typically divided into two categories:

Vertebrates (animals having a backbone)

Animals that are invertebrate(animal without backbone).

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True, with proper training, people can increase their endurance performance even if their VO2max stays the same.

VO2max is a measure of the maximum amount of oxygen that a person can use during intense exercise. While it is an important factor in endurance performance, it is not the only one. Other factors, such as muscle strength, efficiency, and mental toughness, also play a role in endurance performance.

Through proper training, a person can improve their muscle strength and efficiency, which can lead to an increase in endurance performance even if their VO2max stays the same. Additionally, mental training can help a person push through the discomfort of intense exercise and improve their endurance performance.

Therefore, it is true that with proper training, people can increase their endurance performance even if their VO2max stays the same.

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Because crossing over occurs at the four-strands stage of the cell cycle, notice that each single crossover involves only two of the four chromatids.

During crossing over, genetic exchange occurs between homologous chromosomes. This process typically happens during meiosis, specifically during prophase I. At the four-strands stage, each homologous chromosome consists of two sister chromatids, resulting in a total of four chromatids.

When crossing over occurs, it involves the exchange of genetic material between two of the four chromatids, resulting in the formation of recombinant chromatids. These recombinant chromatids can lead to the production of different allele combinations in the gametes.

The statement highlights that during a single crossover event, only two of the four chromatids are involved. The other two chromatids remain unaltered. This is why a 50 percent recovery of single-crossover products is the upper limit. It indicates that only half of the chromatids involved in crossing over have undergone recombination, while the remaining half have not experienced any genetic exchange.

Therefore, at the four-strands stage, each single crossover involves only two of the four chromatids.

The correct question is:

Why is a 50 percent recovery of single-crossover products the upper limit, even when crossing over always occurs between two linked genes?

Use the following terms to fill in the blanks below:

four-strands stage, six-strands stage, eight-strand stage, two-strands stage, two, three, four, one, six, eight

1. Because crossing over occurs at the ___ of the cell cycle, notice that each single crossover involves only ___ of the ___ chromatids.

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The area in the lower respiratory system that contains sensory receptors that trigger a violent cough reflex in response to foreign material is the bronchi.

The bronchi are the two primary branches of the trachea that carry air to and from the lungs. They divide into smaller bronchioles that eventually lead to the alveoli, where gas exchange occurs.

When foreign material such as dust, pollen, or bacteria enter the respiratory system and reach the bronchi, the sensory receptors located in the bronchial walls are triggered.

These receptors are known as irritant receptors or cough receptors. They are sensitive to various stimuli such as mechanical pressure, temperature changes, and chemicals.

When these receptors are activated, they send signals to the brainstem, which in turn initiates a cough reflex. This reflex is an involuntary protective mechanism that helps to expel foreign material from the lungs and airways.

The cough reflex can be violent and cause discomfort, but it serves an important purpose in maintaining respiratory health.

In conclusion, the bronchi contain sensory receptors that trigger a violent cough reflex in response to foreign material entering the lower respiratory system.

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