4. ______________ and _______________ are needed by our body in small quantities

Answer:

So they do the experiments in the correct order.

Explanation:

If they don't do it in the correct order then, something major could go wrong. Also it should tell you the answer in the video link on your work sheet. :)

Answer: The Big Bang theory basically explains how our universe began.

Our universe started with a small singularity, and inflated over the next 13.8 billion years to the cosmos we know

Please correct me if I’m wrong :)

Explanation:

Answer:

Yesss

Explanation:

At high temperatures the shape of the enzyme is altered so that it is no longer complementary to its specific substrate. This effect can be permanent and irreversible and is called denaturation.

Answer:d

i tried my best i was half a sleep

Explanation:

One partner is harmed or suffers is true of both parasitism and amensalism. (C)

In parasitism, the parasite benefits at the expense of the host, causing harm or suffering to the host. In amensalism, one organism is harmed or inhibited while the other is unaffected. For example, a plant may release chemicals that inhibit the growth of nearby plants, causing harm to those plants.

Both relationships can occur between different species or within the same species. The other options, such as one member being much larger or the relationships being species-specific, are not necessarily true of both parasitism and amensalism.(C)

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Explanation:

The traits more sensitive noses is advantageous to the species

Mitosis is the process of cell division in eukaryotic cells that results in the formation of two identical daughter cells and It involves the separation and distribution of replicated DNA (chromosomes) from the parent cell to each of the daughter cells.

Mitosis can be divided into four main stages: prophase, metaphase, anaphase, and telophase, followed by cytokinesis, which is the physical separation of the two daughter cells.

G1 phase: Cell growth, normal functions, and preparation for DNA replication

S phase: DNA replication

G2 phase: Growth and preparation for cell division

PROPHASE | Frames 1-4

Chromatin condenses into chromosomes

Nucleus disappears

Spindle fibers form

Centrosomes move to opposite poles of the cell

METAPHASE | Frames 5-8

Chromosomes line up at the equator of the cell

Spindle fibers attach to the centromeres of the chromosomes

ANAPHASE | Frames 9-12

Sister chromatids separate and are pulled to opposite poles of the cell by the spindle fibers

Cell begins to elongate

TELOPHASE | Frames 13-16

Chromosomes begin to uncoil and return to a less condensed chromatin state

Nucleus reappears

Spindle fibers disappear

Cell continues to elongate

Cell begins to divide

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Answer:

C.

Explanation:

Animals found in the tundra include the musk ox, the Arctic hare, the polar bear, the Arctic fox, the caribou, and the snowy owl. Many animals that live in the tundra, like the caribou and the semipalmated plover, migrate to warmer climates during the winter.

I hopes it's help :)

Answer:

Recycle, Plant Trees, Use reusable bags

Explanation:

True. The Pseudostratified columnar epithelial tissue that contains cilia on the surface is known as the ciliated pseudostratified columnar epithelium.

Pseudostratified columnar epithelia are most generally set up along the respiratory airways. These cells bear cilia on their apical surface.

Pseudostratified columnar epithelia are tissues formed by a single subcaste of cells that offer the appearance of being formed from multiple layers, specifically when perceived in cross section.

establish most heavily along the respiratory tract, pseudostratified ciliated columnar epithelial cells assist trap and transport particles induced in through the nasal passages and lungs.

The term pseudostratified is extrapolated from the appearance of this epithelium in the section which conveys the erroneous( pseudo means nearly or approaching) impression that there's more than one subcaste of cells, when in fact this is a true simple epithelium since all the cells rest on the basement membrane.

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Answer:

Succession

Explanation:

The biologists were attempting to imitate succession.

Succession refers to a gradual change to the structure and species composition of a community over a period of time.

A newly colonized environment such as a bare rock forms a community is said to be in primary succession. Thereafter, the structure and composition of the community keep changing until a relatively stable community, otherwise known as climax community, is established.

Secondary succession happens when a disturbed community tries to regain its original dynamics in terms of species composition and structure. A climax community is often less diverse than a community that is still in active succession.

Hence, the biologists were attempting to imitate succession by burning/disturning a relatively stable, less diverse climax community of grassland in order to realize a more diverse community that will undergo secondary succession.

Answer:

Succession

Explanation:

Answer:

Highly structured tissues (Fig . 1) that convert chemical energy to physical work are striated muscles. In order to sustain respiration, locomotion, and posture (skeletal muscle) and to pump blood throughout the body (cardiac muscle), the primary function of striated muscles is to produce force and contract.

Explanation:

complex structures tissue that convert chemical energy to physical work are striated muscles, it help in respiration, locomotion, and posture the skeletal muscle and to pump blood throughout the body.

Muscles are the soft tissue present in both animals and humans, comprise actin protein filaments  and myosin that slide past one another, and it produces contraction and changes both the length and the shape of the cell.

The term muscle is derived from “musculus” due to the shape of certain muscles or the contraction of muscles, it function by producing force and motion and are primarily responsible for Locomotion.

The muscle Maintain and change body posture, Circulation of blood cells throughout the body, Movement of internal organs like contraction of the heart and the movement of food through the digestive system via peristalsis.

The energy required for muscle movement is predominantly stimulated by the oxidation of fats and carbohydrates, human muscular system have  more than 600 muscles, which make up about 40 to 50 per cent of the total body weight.

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Deformity caused by a fracture would MOST likely be masked by C. swelling. A fracture is a broken bone. It might be a hairline crack or a severe break that fragments the bone in multiple pieces.

A fracture can be caused by accidents, falls, or bone weakness due to osteoporosis, tumors, or other underlying conditions. Deformity caused by a fracture would be most likely masked by swelling. Deformity is an irregularity in a person's physical form or structure, frequently caused by injury or disease. A fracture is a condition in which a bone is broken, causing a deformity or unnatural shape. Swelling can often hide the deformity caused by a fracture.

Swelling, also known as edema, is a typical bodily response to an injury. The immune system is attempting to defend the injured area by flooding it with blood and lymph fluids. The purpose of this response is to aid in the healing process and avoid any further damage to the injured area.

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Answer:

First it flows from the Sun to autotrophs, or producers. Then it flows from producers to consumers.

Explanation:

The described experiment contains a number of design issues. The key problems are a lack of a control group, a small sample size, limited replication, and lack of randomization in 0ther words, the experiment should include a control group, be replicated, have the assignment be random, and have a larger sample size to ensure the results are more reliable.

The experiment described has several design flaws that impact the validity of the results. The major flaws include the absence of a control group, limited sample size and replication, lack of information about the inhibiting chemical, and no randomization. To improve the validity of the results, the experiment should include a control group, increase the sample size and replication, randomize the assignment of larvae, provide information about the chemical, and follow standardized protocols.

Based on the information provided, it is not possible to accurately conclude whether the inhibiting chemical affected the settlement rate of marine larvae at all concentration levels. Without a control group and proper statistical analysis, it is difficult to determine the specific impact of the inhibiting chemical.

A comparison between the settlement rates observed in the presence of the inhibiting chemical and those in the control group, along with appropriate statistical tests, is necessary to make an accurate conclusion. Further analysis, such as effect sizes and confidence intervals, would provide a more comprehensive understanding of the relationship between the inhibiting chemical and larval settlement rates.

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Answer:

Explanation:

The different properties of minerals include:

Hardness: the resistance of a mineral to being scratched or abraded. Hardness is measured using the Mohs scale, which ranges from 1 (softest) to 10 (hardest).

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The following statement regarding protein structure is true: d) Hydrophobic side chains are usually in the interior of the native structure. Protein is one of the four basic biological macromolecules and is made up of long chains of amino acids.

Proteins can be structural in function (providing support and rigidity to tissues and cells), enzyme catalysis (speeding up chemical reactions in the body), transport, storage, signaling, and a variety of other roles. There are four distinct levels of protein structure: primary, secondary, tertiary, and quaternary.

The order and chemical composition of the amino acids in a protein is referred to as its primary structure, while the three-dimensional shape of a single polypeptide chain is referred to as its secondary and tertiary structure. Hydrophobic interactions are a major component of protein structure.

Because of the hydrophobic effect, nonpolar (hydrophobic) side chains will tend to be buried inside the protein, while polar (hydrophilic) side chains will tend to be exposed to the solvent. Therefore, hydrophobic side chains are frequently found in the interior of the native structure (option d is the correct statement).

Option A is incorrect because entropy is a significant consideration in determining protein stability. Option b is incorrect because van der Waals interactions are significant and play a role in protein stability. Option c is incorrect because hydrophilic side chains can be found both on the interior and exterior of the protein structure. Hence, d is the correct option.

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Answer:

point b

Explanation:

Answer:

A

it's small and in the middle so it's a

Environmental Defense Fund is the most-associated group with using confrontational tactics used to raise awareness for environmental issues. Thus, the correct option is A.

Environmental Defense Fund or EDF is a United States-based non-profit environmental advocacy group for the environment protection. This group is known for its work on the issues related to global warming, ecosystem restoration, oceans, and human health, using sound science, economics and law that work.

EDF's mission is to preserve the natural systems on which all the life forms depend. This advocacy is guided by science and economics, to find practical and lasting solutions to the most serious environmental issues.

Environmental Defense Fund is a 501(c)(3) organization, with donations which are tax-deductible.

Therefore, the correct option is A.

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Answer: On the Y chromosome

Answer: 21th

Explanation: Down syndrome a.k.a trisomy 21 because it’s caused by an extra copy of a chromosome 21.

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Based on the given options, the best phrase to describe these two chromosomes based on their genetic content is: sister chromatids of the same chromosome number.

Sister chromatids are identical copies of a single chromosome that are produced during DNA replication. They are held together at a region called the centromere. Sister chromatids are connected to each other until they separate during cell division.

During cell division, sister chromatids are pulled apart and distributed to daughter cells, ensuring that each daughter cell receives a complete set of chromosomes. Once separated, the sister chromatids become individual chromosomes.

The term "same chromosome number" indicates that the two sister chromatids belong to the same chromosome, meaning they contain the same genetic information. The chromosome number refers to the specific type of chromosome within a species.

It's important to note that homologous pairs of chromosomes also exist in diploid organisms, but they are not applicable to the given scenario. Homologous chromosomes are pairs of chromosomes that have similar genetic content but are not identical. They come from each parent and contain corresponding genes in the same order. Homologous chromosomes pair during meiosis and undergo genetic recombination.

Completely separate chromosome number would refer to distinct and unrelated chromosomes, which is not the case for sister chromatids.

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Answer:

ds

Explanation:

fdfx

No drugs mimic longmasterol's effects, but NSAIDs and chemotherapy drugs have similar effects on inflammation and cancer cells.

Longmasterol is a sterol compound that is found in plants and has been related with different medical advantages, including calming and hostile to disease impacts. There are no medications accessible that are explicitly intended to imitate the impacts of longmasterol. Notwithstanding, there are drugs that comparatively affect irritation and disease cells. For instance, non-steroidal calming drugs (NSAIDs, for example, headache medicine and ibuprofen can assist with diminishing irritation, while chemotherapy medications, for example, paclitaxel and doxorubicin are utilized to kill malignant growth cells. It is essential to take note of that the impacts of these medications can contrast fundamentally from the impacts of longmasterol, and their utilization ought to constantly be examined with a medical services supplier.

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Answer:

Currents originating in low latitudes near the equator tend to carry warmer water. Currents originating in high latitudes near the north or south pole tend to carry colder water.

Explanation:

Brainiest please

Aluminium is a substance that has the smallest density as compared to other metals.

Density is defined as the mass per unit of volume of a substance. The symbol used for density is ρ. Mathematically, density is the mass divided by volume.

Iron is a chemical element having the symbol Fe and its atomic number is 26. It is a metal that belongs to the first transition group of the periodic table. The density of iron is 7.874 g/cm³. Gold is an element with the symbol Au and its atomic number is 79. Gold is one of the largest atomic numbers of elements that are present naturally. The density of gold is 19.32 g/cm³. Pure silver is white in colour, lustrous, soft, ductile and malleable, it is a good conductor of heat and electricity. The density of silver is 10.49 g/cm³. It is not a chemically active metal, but when it is reacted with nitric acid and sulfuric acid. The density of aluminium is2.7 g/cm³.

So we can conclude that Aluminium has the smallest density as compared to Iron, Gold and Silver.

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Answer:

BOD measurement requires taking two samples at each site. One is tested immediately for dissolved oxygen, and the second is incubated in the dark at 20 C for 5 days and then tested for the amount of dissolved oxygen remaining.

Answer:

pioneer species

Explanation: