8th grade sicence question please answer ASAP

Crime scene photographer Dean should begin with overall shots, followed by mid-range shots, and finish with close-up shots of the evidence. He must ensure thorough coverage, photograph from multiple angles, and maintain the scene's integrity.

As a crime scene photographer, Dean should follow a systematic approach when documenting a crime scene. There is a general practice that Dean should adhere to ensure thorough coverage of the area. This typically involves photographing the scene in the following order:

It is important for the photographer to avoid disturbing the scene and to use various angles to ensure nothing is missed. The photos should be taken with sufficient lighting and clarity to capture fine details that might be critical for the investigation.

Final answer:

As a crime scene photographer, Dean should follow a specific order when photographing the crime scene. He should start with overall shots, then move to mid-range shots, followed by close-up shots. If necessary, he can also use alternative light sources. This systematic approach ensures that all important details are captured.

Explanation:

As a crime scene photographer, Dean should photograph the crime scene in a systematic and methodical manner to ensure that all important details are captured. Here is the order he should follow:

By following this order, Dean can ensure that he captures all necessary information accurately and efficiently.

B. to propose the theory of evolution by natural selection

Answer:

The correct answer would be B. to propose the theory of evolution by natural selection.

Darwin observed the traits and characters of various organisms such as Galapagos finches based on which he proposed the theory of evolution through natural selection.

He stated that organisms evolved as a result of adaptation towards different niches and habitats.

These adaptations are selected and focused by natural selection which ultimately leads to the evolution of the organisms.

For example, the finches had evolved with different shapes and sizes of the beaks.

Both processes involves the breakdown of glucose to produce energy.

The first step which is glycolysis is same in both reactions.

Both alcohol fermentation and aerobic respiration start with glucose breakdown (glycolysis) to produce ATP, but differ in end products, oxygen requirement, and overall ATP yield.

Alcohol fermentation and aerobic respiration share the initial step of glucose breakdown via glycolysis, producing some ATP. Both processes begin in the cytoplasm. However, they diverge significantly afterward. Alcohol fermentation, an anaerobic process, generates ethanol and carbon dioxide, with limited ATP.

In contrast, aerobic respiration, requiring oxygen, progresses through citric acid cycle and electron transport chain stages, yielding substantial ATP, carbon dioxide, and water. This starkly contrasts the anaerobic nature of alcohol fermentation, making aerobic respiration the more efficient energy production method in oxygen-rich environments, as seen in most organisms, including humans.

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Option C

Explanation Below

Well, we can rule out options A and D because adaption takes time and I am guessing the unit is Darwin's Finches. Both A and D could be valid option only if some time was added in between the intervals. With the information I just gave, option B can also be ruled out because it uses the word "quickly". Since evolution takes lots of time, quickly isn't really an option. This leaves the answer as choice C as the bird species will adapt.

Answer:

Explanation:

c

A body of water you usually refers to large masses of water.

The lake is the only one that is large and is surrounded by land

Hope that helped

Answer:

D. Lake

Explanation:

Lakes are bodies of water surrounded by land that can be natural or man-made (serving as water reservoirs).

Some people often confuse lakes with ponds, and even though both are bodies of water surrounded by land, the lakes are larger and older than the ponds.

The lakes usually form by accumulation of sediments, which prevent water from flowing, and also by rocks that are impermeable and prevent the absorption of water in the soil.

no. some can but this species does not have that ability

no not this particular kind of species but other species have the skill tht allows them to swim..

the experimental group would be receiving the variable ( the new pairs of shoes) and the control group would be wearing regular volleyball shoes. Your control variable would be keeping the height of the net the same for each time they both jump, and another control variable is what type of tennis shoes Mrs. K is wearing. The independent variable would the new pairs of shoes, and the dependent variable would be how high in the air Mrs. K will jump.

The control group in Mrs. Sara's experiment examining the impact of volleyball shoes on Mrs. Katherine's jump height is established by having Mrs. K jump in her regular tennis shoes for comparison. This allows all variables to stay consistent except for the type of shoe worn.

In a scientific experiment, the control group serves as the standard of comparison and is exposed to the same conditions as the experimental group, except for the one variable the experiment is testing. For Mrs. Sara's experiment evaluating whether the volleyball shoes indeed add inches to Mrs. Katherine's vertical jump, option B: 'Having Mrs. K jump in her "regular" tennis shoes to measure that height and compare it to the height with the special volleyball shoes.' would be the control group.

This is because this scenario keeps all variables the same, changing only the type of shoe Mrs. K is wearing. This allows Mrs. Sara to effectively gauge whether the volleyball shoes have any bearing on Mrs. K's jump height.

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ight so According to dat punnet square, 90 of dem lil fluffy bunnies should be black.

your welcome

have a great day and keep posting K K

Answer:

C) 90

Explanation:

As per Mendel’s law of dominance, the dominant allele expressed in F1 offspring in heterozygous condition. Thus, in heterozygous condition, the dominant gene determines the phenotype for a trait. In the given question all the bunnies of the F1 generation will be black fur (Bb). B is the dominant allele. When heterozygous rabbit with black fur are crossed then both black and white fur rabbits are produced in the F2 generation in the ratio 3:1. Recessive phenotype, white fur (bb)  will appear only in homozygous condition.

As per the question, 120 bunnies are born. 90 bunnies will be with black fur and 30 will be of white fur in the ratio 3:1.  The 90 bunnies will be black.

The American Bison was once common in the prairie, but now is rare. The kind of organism a bison is a herbivore. The correct option is B.

Bison are animals of the cow family. They are large dark brown colored animals. They look like buffalo but are different. Furthermore, they have large heads and small horns. They are only found in North America. They are aggressive animals.

Herbivores are those animals that eat grass and other plants product. They do not eat meat or other animals. Herbivores are cows, rabbits, goats, etc. Bison are from cow families. All the animals of the cow family are generally herbivores.

Thus, the correct option is B. herbivore regarding kind of organism is a Bison, which eats grass and leaves like cows.

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The biggest difference between prokaryotes and eukaryotes is that eukaryotes have a nucleus.

Presence of nucleus and nuclear membrane in eukaryotes distinguishes them from prokaryotes.

Prokaryotes have primitive body structure and they lack nucleus while a well defined nucleus and nuclear membrane is present in all eukaryotes.

Prokaryotes do not have membrane bound cell organelles whereas eukaryotes contain membrane bound organelles like endoplasmic reticulum, mitochondria etc in their cellular structure.

Prokaryotes are made up of single cell while eukaryotes are mostly multicellular organisms.

Prokaryotes are smaller organisms with the size ranging from 0.1 to 5um. The eukaryotes are larger in size. Their size ranges from 5-100um.

Mode of cell division is binary fission in prokaryotes while in eukaryotes it is through mitosis.

Prokaryotes contain one chromosome whereas many chromosomes are seen in eukaryotes.

Bacteria and archaea constitute prokaryotes while plants and animals comprise eukaryotes.

Therefore, prokaryotes are simpler than the eukaryotes.

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The pelagic biome includes a variety of species organized by depth and light availability, with plankton forming the base of the food chain. Nutrients are limited, making it less productive, and sea cucumbers are common in the deeper aphotic zone.

The species of the pelagic biome, which encompasses the open ocean area beyond the neritic zone, vary according to depth and the availability of light. In this zone, there is thermal stratification where warm and cold ocean waters mix due to ocean currents. The oceanic zone hosts abundant plankton that act as the base of the food chain for larger pelagic species such as whales and dolphins. However, this zone is less productive compared to the neritic biomes due to the scarcity of nutrients. Photosynthetic organisms, protists, and animals form part of the food web, and when they die, their remains contribute to the nutrient cycle by falling to the ocean floor. In the aphotic zone, species like sea cucumbers (phylum Echinodermata) dominate, relying on the nutrients from these dead organisms for survival.

The function of a protein is determined by its shape. The shape of a protein is determined by its primary structure (sequence of amino acids). The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.

The shape of a protein molecule directly determines its functions inside and outside of cells

Further Explanation:

Proteins are the product of decoding process that begins with the information in cellular DNA. Proteins compose motor and structural elements in the cell, and they act as a catalyst in variety of reactions that take place in living things. In DNA, each gene is code for unique structure of protein and they attached to each other by different fold and bonds into array of three dimensional structure. The conformation or folded shape of protein depends on linear sequence of amino acid of the protein.

The functions of proteins are:

Proteins are mainly composed of small monomers which are referred as amino acid. These proteins folded into three dimensional structures. The major function of protein is determined by three dimensional structures and they are responsible for specific interaction and function. The component of protein in DNA replication surrounds a portion of DNA double helix. The protein structure allows large part of the DNA is to be copied without the replication machinery detaching from the DNA.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Protein and amino acid

Keywords:

Protein, structure, DNA, three-dimensional structure, amino acid, replication, immune protection, store molecule, growth, differentiation, folded shape, conformation.

the two planets considered ice giants are Uranus and Neptune! i hope this helps you!

The two planets considered “ice giants” are

Jupiter and Saturn.

Uranus and Saturn.

Jupiter and Neptune.

This statement is true. for those organisms that are made up of more than one cell are considered complex.

For example: complex organisms like...

fox, bunny, lion, human, etc.

The steps of DNA replication are as follows

Step 1: The Separation of DNA Strands

Step 2: Replication Fork Formation

Step 3: Binding of Bases to Each Strand

Step 4: The Termination of the Replication Process

Hope that helps :)

The steps of DNA replication are formation of replication fork, primer binding, elongation, and termination.  

The following are the steps of DNA replication in order:  

• Formation of replication fork: Prior to the replication of DNA, the double stranded molecule get unzipped into two single strands.  

• Binding of primer.  

• Elongation

• Termination

The process by which a double-stranded molecule of DNA gets copied to generate two similar molecules of DNA is termed as replication of DNA.  

The four main steps of DNA replication are formation of replication fork, binding of primer, elongation, and termination.

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The right answer is : A. maintaining the lowest expenses for making a product.

Profitability is the ratio of income earned or expected to resources used to obtain it. The concept applies in particular to companies, but also to any other investment.

Profitability represents the evaluation of the performance of resources invested by capital providers. It is therefore the evaluation tool favored by financial analysis.

Metaphase 1 the tetrads line up in the middle of the cell.

Tetrads align themselves to the metaphase plate in metaphase I, while homologous pairs orient themselves at random, hence option B is correct.

Centromeres disintegrate and homologous chromosomes split during anaphase I. Chromosomes shift to their opposing poles during telophase I, and the cell divides into two haploid cells during cytokinesis.

Tetrads of bivalents, which align in the cell's center, are joined to spindle fibers in metaphase I. The term "independent assortment" describes the haphazard pairing of chromosomes.

Therefore, during metaphase I, tetrads pairs of homologous chromosomes that are lined up along the metaphase plate move along their microtubule attachments, hence option B is correct.

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Water, which not only dissolves many compounds but also dissolves more substances than any other liquid, is considered the universal solvent.

It is water's chemical composition and physical attributes that make it such an excellent solvent. Water molecules have a polar arrangement of the oxygen and hydrogen atoms one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge. This allows the water molecule to become attracted to many other different types of molecules. Water can become so heavily attracted to a different molecule, like salt (NaCl) that it can disrupt the attractive forces that hold the sodium and chloride in the salt molecule together and, thus, dissolve it.  So this make water a good solvent.

a plant cell has a cell wall, chloroplast, and vacuole where a animal cell doesn't.

The answer is A, acids.

n chemistry, acids and bases have been defined differently by three sets of theories. One is the Arrhenius definition, which revolves around the idea that acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (H+) ions while bases produce hydroxide (OH-) ions in solution.

C.The rate of deposition of sediment in the ocean increases in response to weather patterns.

In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven factors. A theory is always backed by evidence; a hypothesis is only a suggested possible outcome, and is testable and falsifiable. ... Scientific laws explain things, but they do not describe them.

C. both biotic and abiotic factors in earth most ecosystems have both abiotic and biotic systems. They actually need both in order to survive.

Answer: C. both biotic and abiotic factors

Explanation:

An ecosystem can be define as biotic community where living beings or biotic  factors of the environment interacts with the non-living components or abiotic factors of the environment. This interaction is necessary for sustaining life on earth as living beings are dependent upon the non-living physical environment for completing their life cycles.

Biotic factors includes the plants, animals, microbes, and other living beings. Abiotic factors includes the soil, water, air and sunlight.

Algae, cyanobacteria and plants can all do photosynthesis - so the answer is D - they convert sunlight into chemical energy

The correct answer is option C- they absorb sunlight and convert into chemical energy

- Algae, cyanobacteria and plants have one common characteristic that they prepare their own food. All of them contain a pigment called “chlorophyll”.

- Chlorophyll is a green color pigment which is required for the preparation of food during photosynthesis. It absorbs sunlight and converts into to chemical energy which is utilized by these organisms to perform.  

Sunlight, water, minerals, air, and space are all basic needs of plants.

ans is C

those things are what plants need. so ans is C. basic needs.

The correct answer is compaction and cementation.  

With the build-up of the layers of sediments, the pressure on the lower layers enhances. The layers are clasped together and any water mixed in sediments is eliminated out. This procedure is known as compaction.  

At the similar time, the particles of the sediment start to conglomerate with each other, and they are cemented together either by minerals or by clay like calcite or silica. After the procedure of cementation and compaction, the sequence of sedimentary has modified into a sedimentary rock.  

Answer:

Deposition and lithification

Explanation:

None

although my condolences if I'm wrong

The answer to your question is,

Yes and no. See, if certain cells go in the wrong place, it can cause cell death. Cell death kills the cells, (obviously) and the cells aren't able to react to other cells like they used to do.

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H-zone in a contracted sarcomere differ from that of a relaxed sarcomere . Yes its true because H-zone is narrower in contracted sarcomere. The functional unit of striated muscle is sarcomere. Sarcomere is the very basic unit of skelatal muscle. Between two Z line sarcomere is the repeated unit .Hence we can say that H-zone in a contracted sarcomere differ from that of a relaxed sarcomere.

Answer:

The H-zone shortens in contracted muscles.

Explanation:

Just took the test~ :))