Do tubifex worms have cells? if so, what are they?

Answer:

Endocrine

Explanation:

Answer:

the answer is D

Explanation:

in  the northern hemisphere is tilted towards the sun . in A, C and D the northern hemisphere tilts away from the sun. hope this helps

Answer: Glycolsis

Glycolysis happens in the cytoplasm of the cell. Afterwards, in the presence of Oxygen, the two molecules will undergo pyruvate oxidation in the mitochondrial matrix.

answer:you got rick rolled

Answer:

(B) Active transport requires the cell to expend energy, while passive transport does not

Answer:

b

Explanation:

Answer:

Well, if all the herbivores disappeared, multiple things could occur. Without anyone keeping plants in check, plants may grow too abundant and may be harmful to the food web. Not only that, but predators that eat herbivors might starve without food. On the plus side, natural resources like water would increase without herbivores drinking/using it.

I hope this helps :)

Explanation:

Active Transport transfers a substance from a more diluted solution to a solution that is more concentrated. Sugar is used in cell respiration and absorbs in intestine.

Active transport is defined as a process when molecules are propelled by external energy through a gradient or obstacle from an area of lower concentration to a region of higher concentration.

It can also be defined as the passage of molecules or ions across a cell membrane across a concentration gradient, from an area of lower concentration to a region of greater concentration.

Thus, active transport transfers a substance from a more diluted solution to a solution that is more concentrated. Sugar is used in cell respiration and absorbs in intestine.

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Answer:

Baking soda is the strongest acid I think. I learned it in bio.

Explanation:

Hope this helps!

Energy is  necessary for a bond to form in a chemical compound. Therefore, option (C) is correct.

Bond formation in a chemical molecule requires energy. The formation of chemical bonds is the result of electron sharing or transfer between atoms or molecules. Electrostatic repulsion between charged particles makes this process energy-intensive.

Heat, light, and electricity are all examples of kinds of energy that may be delivered. Atoms or molecules can undergo chemical reactions—the building of new bonds and the development of a stable compound—when given the appropriate amount of energy.

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By oxidizing glucose and other dietary molecules in a step-by-step manner, ATP and NADH are produced as chemical energy.

What is ATP?

A vital "energy molecule" present in all living things is adenosine 5′-triphosphate, also known as ATP and typically written without the 5′-. In particular, it is a coenzyme that transfers energy to cells by releasing its phosphate groups when it interacts with enzymes like ATP triphosphatase.

By adding a phosphate group to another molecule, ATP can drive biological operations (a process called phosphorylation). Special enzymes are responsible for carrying out this transfer, which connects the cellular processes that need energy to the release of energy from ATP.

A variety of cellular functions, such as ion transport, muscular contraction, the transmission of nerve impulses, substrate phosphorylation, and chemical synthesis, all require energy and hence use ATP. A large demand for ATP is generated not just by these processes but also by others.

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Answer:

Photosynthesis.

Coz when plants carryout photosynthesis they release Oxygen and they use Carbon dioxide.

The variance of X, Var(X), for the hypergeometric distribution, the formula is: 1.67

The hypergeometric distribution has three parameters:central idea

N: the total population size (60 children in this case)

K: the number of success states in the population (40 non-breastfed children in this case)

n: the number of draws (5 children chosen in this case)

To calculate the variance of X, Var(X), for the hypergeometric distribution, the formula is:

Var(X) = n * (K / N) * ((N - K) / N) * ((N - n) / (N - 1))

Using the same values as before, we have:

Var(X) = 5 * (40 / 60) * ((60 - 40) / 60) * ((60 - 5) / (60 - 1))

= 1.67

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Semi conductors are materials that are somewhere in between

During meiosis i, the Kinetochores for each pair of sister chromatids of each homologue, attach to microtubules from the same pole.

Large protein structures called kinetochores link chromosomes to the microtubules of the mitotic and meiotic spindles to transfer the replicated DNA from a mother cell to its daughters.

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Answer:

predator or a.pex predator

An animal with no natural enemy is an apex predator. Apex predators are also known as top predators or alpha predators.

They are species that reside at the highest level of the food chain within their ecosystems. They have no natural predators and primarily feed on other animals. Apex predators play a critical role in maintaining the balance and functioning of their respective ecosystems.

These predators are often characterized by their exceptional hunting skills, agility, strength, and ability to control the populations of their prey. They exert top-down control on the food chain by keeping the populations of lower-level consumers and herbivores in check, which in turn has cascading effects on the entire ecosystem. Thus, apex predators have no natural enemies.

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If further studies revealed that 150 of the beetles were homozygous dominant, the population is not at equilibrium. This can be explained using the chi-square test, which compares observed and expected frequencies to determine if there is a significant deviation.

To assess whether a population is at equilibrium, the observed frequencies of different genotypes are compared to the expected frequencies based on the principles of Hardy-Weinberg equilibrium. The chi-square test is commonly used for this analysis. If the observed frequencies significantly deviate from the expected frequencies, it indicates that the population is not at equilibrium.

In this case, if the observed frequency of homozygous dominant beetles is 150, it needs to be compared to the expected frequency based on the allele frequencies in the population. If there is a significant difference between the observed and expected frequencies, it suggests that evolutionary forces, such as genetic drift, mutation, selection, or migration, may be affecting the population, leading to a deviation from equilibrium.

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Temperature and precipitation are considered important elements in describing a climate because they have the greatest influence on ecosystem and humans.

Fundamental climatic indicators that can have a significant impact on both ecosystems and human existence are air temperature and precipitation.For instance, rising air temperatures might result in more severe heat waves, which can be fatal and sicken vulnerable people. The quantity of water available for drinking, agriculture, and industry can be impacted by rainfall, snowfall, and the timing of snowmelt.

The kinds of animals and plants (including crops) that can thrive in specific places are also influenced by annual and seasonal variations in temperature and precipitation.

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Answer:

Correct answer to the question: human bone, muscle, and nerve ceils all contain the same number of chromosomes with the same complement of genes. what enables these cells to perform specialized activities

Answer: I think its B

Explanation:

Answer:

Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters). Secondary consumers eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants). Tertiary consumers eat secondary consumers.

Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.

Summary. Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Most autotrophs make their "food" through photosynthesis using the energy of the sun. Heterotrophs cannot make their own food, so they must eat or absorb it.

Explanation:

Answer:

C: Fewer nesting sites

Explanation:

Answer: B/Liter

Explanation:

According to the paper, the Boreal Forest is unique in that it is all of the above. All the options are correct.

 It is the largest, mostly intact, terrestrial ecosystem in the world, home to a variety of unique species and communities, and subject to a range of important threats, of which climate change is the most important. What is the Boreal Forest? The Boreal Forest is a vast and complex ecosystem that spans the world's northern latitudes. It is the largest land-based biome on the planet, covering over 11% of the Earth's land area.

The forest is characterized by its cold temperatures and its coniferous trees, which make up the majority of the forest's biomass. These trees are adapted to survive the long, cold winters and short growing seasons of the boreal region, and provide habitat for a wide variety of wildlife. The forest is also home to a number of unique communities, such as Indigenous peoples and other traditional land users, who have lived in the region for centuries and depend on it for their livelihoods.

 However, the boreal forest is facing a number of threats, including climate change, deforestation, and resource extraction. These threats are not only impacting the forest's ecosystems and species, but also the communities that rely on it.

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The growth medium type used in Lab 6 capable of differentiating between three different Gram-negative bacterial types is MacConkey agar.

MacConkey agar is a type of selective and differential medium that is commonly used to distinguish between different types of bacteria based on their ability to ferment lactose. It is primarily used to identify and isolate Gram-negative bacteria such as Escherichia coli and Salmonella typhi from clinical specimens.

In MacConkey agar, lactose is the only carbon source, which means that only bacteria that can ferment lactose can grow on the medium. Additionally, the medium contains bile salts and crystal violet, which inhibit the growth of most Gram-positive bacteria.

This selective component of the medium allows for the isolation of Gram-negative bacteria from mixed cultures. The differential component of the medium is based on the pH indicator neutral red, which turns red when the pH of the medium is below 6.8.

Bacteria that can ferment lactose produce acid as a byproduct, which lowers the pH of the medium and causes it to turn red. Thus, bacteria that can ferment lactose appear as pink or red colonies on the MacConkey agar.

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Most of the tropic hormones are produced and secreted by the anterior pituitary. The hypothalamus secretes tropic hormones that are directed to the anterior pituitary, and the thyroid gland secretes thyroxine, which is directed.

The hypothalamus and can therefore be considered a tropic hormone. The anterior pituitary produces ACTH. It is considered a tropical hormone. Tropic hormones indirectly affect target cells by first stimulating other endocrine glands. Tropic hormones include thyroid-stimulating hormone, corticotropin, follicle-stimulating hormone, and luteinizing hormone. Tropic hormones are secreted by the posterior pituitary gland. Tropic hormones can control the growth of target tissues. Most of the tropic hormones are produced and secreted by the anterior pituitary. The hypothalamus secretes tropic hormones that go to the anterior pituitary, and the thyroid gland secretes thyroxine, which goes to the hypothalamus and can therefore be considered a tropic hormone.

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Answer:

Food webs are models to show how organisms are related in an ecosystem based on how they get their energy. The main roles are producers, consumers, and decomposers?

Explanation:

Producers

Producers make their own energy through photosynthesis. All most all plants, But not all, are Producers.

Consumers can be divided into

And lastly Decomposers

Decomposers get by breaking down dead organisms and returning nutrients to the soil. Decomposers are usually fungi-like-mushrooms and bacteria

The term that identifies a type of business having many owners is: C. corporation.

Therefore, the term that identifies a type of business having many owners is: C. corporation.

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I got the same thing too

Any three characteristics of bacteria area

Answer:

Three characteristic of bacteria are

1: Unicellular

2: Small size

3: lack of membran bound organless