Which celestial body would have the strongest gravitational pull on a satellite orbiting 100 km above its surface? Explain your answer

Answer:

c

Explanation:

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Final answer:

Cells that produce and secrete digestive proteins have an abundance of Golgi apparatus and rough endoplasmic reticulum, which are involved in the synthesis, processing, and secretion of proteins.

Explanation:

Cells that produce and secrete high levels of digestive proteins are expected to have an abundance of certain organelles that facilitate this process. Specifically, Golgi apparatus (GA) and rough endoplasmic reticulum (RER) are highly abundant in such cells. The RER is involved in the synthesis and modification of proteins. After synthesis, these proteins are transported to the GA, where they are further processed, sorted, and packaged into secretory vesicles. These vesicles are then transported to the cell surface and release their contents, such as digestive enzymes, via the process of exocytosis. This efficient cellular machinery is evident in cells like exocrine cells of the pancreas or cells of the salivary glands.

The presence of Piophila casei and bone-eating beetles on a body could indicate a post-mortem interval of several days to weeks, as these are species associated with later stages of decomposition. By examining the specific insect species and their stages of development, forensic entomologists can more accurately estimate the time of death.

If one found Piophila casei (cheese skipper flies) and bone-eating beetles on a body, it could suggest a specific timeframe since the individual's time of death. Piophila casei is known to be involved in the latter stages of decomposition, and the presence of bone-eating beetles, which tends to indicate a period of weeks into the decomposition process, can help to narrow down the timeline even further. Forensic entomology is the field that studies how insects can help in determining the post-mortem interval (PMI), which is the time elapsed since a person has died.

Flies, such as those in the Calliphoridae family, are usually the first to arrive at a decomposing carcass and lay eggs, often within minutes or hours after death. Over time, these eggs hatch into larvae and grow at a steady pace, and the development stage of these larvae can provide a minimum PMI. Beetles, with their longer life cycles, can cross-validate this evidence and expand the time frame to span over several weeks of decomposition.

The ecological succession of insects on a carcass starts with initial colonizers like blow flies and progresses through a predictable sequence that includes various beetle families. Over time, the body will attract different insect species according to the stage of decomposition, which is known to forensic scientists as 'ecological succession'. By analyzing this succession and the specific stages of insect development, a more accurate estimation of the time of death can be achieved.

Answer:

Solids

Liquids

Explanation:

A mechanical wave is a type of wave that needs a medium to propagate or transfer its energy to.

An example of a mechanical wave is a sound wave.

Sound waves are not capable of going through vacuum.

Mechanical waves travel faster through solids than liquids because they move with the oscillations of the particles they go through and solid particles are denser and have stronger bonding forces, the mechanical waves pass through quicker than liquids that have weaker bonding forces.

Answer:

The lipids and proteins that make up the membrane allow it to be selective about what enters and leaves the cell.

Explanation:

The cell membrane is double membranous which is a phospholipid bilayer. It is selectively permeable to only few substances because of the presence of lipids and integral proteins present in it. While lipid bilayer allows direct entry of only fat soluble substances like steroid hormones, fat soluble vitamins etc., the integral/embedded proteins present in the bilayer in the form of receptors, channels and pumps allow the entry of nutrients, ions, wastes etc. But, entry of some substances like water, glucose etc. hardly pass through the cell membrane.

Excessive runoff can be problematic as it can lead to soil erosion, water pollution, and flooding. It can carry pollutants from farmland and urban areas into water bodies, damaging aquatic ecosystems and causing health problems for humans. Also, it can cause flooding and damage properties and endanger lives.

Runoff, particularly when it becomes excessive, can cause several problems. For instance, it can lead to soil erosion, which degrades arable land, reducing its agricultural productivity.

Runoff can also carry pollutants (like pesticides and fertilizers from farmland and waste materials in cities) which end up contaminating water bodies such as rivers, streams, and eventually, oceans. This phenomenon, known as water pollution, can have detrimental effects on aquatic ecosystems and human health.

Additionally, excessive runoff can cause flooding, a serious risk to both property and lives in areas prone to this kind of event.

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Answer: Plants would not be able to synthesize glucose.

Explanation:

The photosynthesis requires carbon dioxide, water in the presence of sunlight to converted into glucose and release oxygen into the environment.

The If carbon dioxide would not be available during this process then the glucose would not be synthesized.

If there will be no glucose in the plants then the plants would die without food. The other organism would also die because the plant provide food to them.

Answer: your answers are A,D,And E

Explanation:

Use food labels to check the percent daily values (% DV) for iron and choose foods that are high in iron or iron-fortified. The DRIs provide age- and gender-specific recommendations for daily iron intake. Consuming vitamin C with iron-rich foods increases absorption.

The student has asked how to use food labels and Dietary Reference Intakes (DRIs) to ensure adequate iron intake. Boys and girls aged 9 to 13 require 9 mg of iron daily, girls 14-18 require 15 mg, boys 14-18 require 11 mg, and pregnant women need 27 mg. Food labels and the percent daily values (% DV) help identify the amount of iron in foods. Iron-fortified foods like breakfast cereals contain added iron, often as 'reduced iron' or fine metallic iron powder, which is converted to Fe²+ in the body. Consuming vitamin C alongside iron-rich foods enhances iron absorption. It's important to note that while some protein sources are high in iron, they can also be high in fat.

Final answer:

Index fossils are crucial for determining the geological age of rock layers and are used by paleontologists for biostratigraphic correlation and understanding evolutionary history.

Explanation:

Scientists study index fossils because they are indicative of specific intervals in geologic time. These fossils, because of their widespread distribution and short lived existence in the geological record, provide key information about the age of the rock layers in which they are found. For instance, Belemnites are cephalopods that lived during the Mesozoic era, and finding a Belemnite fossil can immediately suggest that the surrounding rocks are from the same era. Furthermore, the study of index fossils aids in the field of biostratigraphy, which allows paleontologists to correlate rock layers from different locations and understand the evolution of life through geologic time.

In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth.

They are called  biogeochemical cycles because chemical substances are cycled through the geosphere and these cycles often involve living organisms.

Matter moves round the ecosystem in certain cycles. The cycles in nature are; water cycle, nitrogen cycle, oxygen cycle, phosphorus cycle, carbon cycle, etc.

Many of these cycles involves living organisms. The substances that are being cycled are chemical substances and the geosphere is involved in all these cycles.

As a result of all these, the cycles in nature are called  biogeochemical cycles.

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Answer:

the correct answer is a , OCEAN WATER !

Explanation:

soultions :-

components :-

type of soultions

examples of soultion

The steroids are produced by the Smooth endoplasmic reticulum.

The cells, which are involved in the secretion of the steroid molecules have an abundant number of the smooth endoplasmic reticulum, which is abbrevated as SER.

The cells present in the ovary and the testis have a large number of smooth endoplasmic reticulum. The abundant number of smoothe endoplasmic reticulum allow them to produce a large amount of steroid molecule to produce the steroid hormones estrogen and testosterone.

Hence, in this case, the ovarian cells would have a large number of SER.

Answer:

The correct answer will be option in which mutation is observed in the legs of the frog.

Explanation:

The mutation is a change which takes place in the sequence of DNA. When it takes place in the segment of DNA which can code the trait, it is expressed in the trait.  

These mutation can prove beneficial to the organisms but can also become lethal to the organisms like the one with a mutation in legs of the frog as the legs of the frog helps provide the ability to move as well to swim in the water. if the legs will show a trait of mutation, the frog will not be able to swim and move properly.  

Thus, option in which mutation is observed in the legs of the frog is the correct answer.

Answer:

4

Explanation:

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Answer:

C)

Translates mRNA into a specific amino acid chain.  

Explanation: