Biology High School

Would you expect sound waves to travel faster through a low density gas such as helium or a higher density such as carbon dioxide

Answers

Answer 1

The answer is carbon dioxide

Answer 2

Answer:

Helium

Explanation:

Helium has a lower density so sound waves travel faster through it

Related Questions

All of the following are part of a prokaryotic cell except All of the following are part of a prokaryotic cell except an endoplasmic reticulum. a cell wall. DNA. a plasma membrane. ribosomes.

Answers

endoplasmic reticulum

Answer: Endoplasmic reticulum

Explanation:

The endoplasmic reticulum is a membrane bound organelles which is found in the eukaryotic cell. This is found in the eukaryotic cell that forms a inter connected network of flattened membrane- enclosed in the sacs.

The enclosed sac or tube like structure in the cell is known as cisternae. It is a double membrane bound organelle which helps in the modification and sorting of proteins.

The correct answer is endoplasmic reticulum.

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Which are contained in the upper leaf cells?

A. the vein, chloroplasts, and phloem

B. the cuticle, phloem, xylem, and stomata

C. stomata, phloem, xylem, and chloroplasts

D. the cuticle, surface cells, and chloroplasts

Answers

C,,,,,,,,,,,,,,,,,,,,,,,,,

Answer: D. the cuticle, surface cells, and chloroplasts

Explanation:

hope this helps

Differential reproduction of genotypes leads to evolution via what process? inbreeding natural selection genetic rescue genetic drift mutational load

Answers

"natural selection"

Natural selection is the phenotype selection that occurs naturally from the sexual reproduction and survival factors. There is variation in all populations of organisms leading to a wide range of genotypes, and consequently, phenotypes. This variation is where natural selection will act upon.

Why are the structure and function of the pont du gard described as "marks of roman civilization"?

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The bridge, with its round arches, symbolizes the Roman's strength and versatility in developing the bridge to be as part of an aqueduct as well as a walkway for its city. This style is characteristic of the Romans' care for their cities by using their ability to harness nature to create a functional structure.

Which is more useful when identifying a mineral: the mineral's color or the mineral's streak?

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with the mineral's color

Discuss the major functions of the lymphatic system

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The major functions of the lymphatic system include:

1. removing interstitial fluid from tissues

2. absorbs/transports fatty acids

3. transports white blood cells to and from lymph nodes into the bones

4. Transports antigen cells to the lymph nodes where the immune response is activated.

Final answer:

The lymphatic system is part of the body's immune system, performing three main functions: maintaining fluid levels in the body's tissues, absorbing fats from the digestive system, and protecting against infections.

Explanation:

The lymphatic system is a crucial part of the body's immune system. It has three major functions: maintenance of fluid levels in the body's tissues, absorption of fats from the digestive tract, and protection against infections.

The lymphatic system helps maintain fluid levels by collecting excess fluid and proteins from tissues and returning them to the bloodstream. This process prevents swelling and helps with circulation.

The lymphatic system also plays a significant role in the absorption of fats from the digestive system. Lacteals, special lymphatic vessels located in the lining of the small intestine, absorb dietary fats that cannot be transported directly into the bloodstream, and then transport them to the blood circulation.

Last but not least, the lymphatic system is essential for our body's defences. Its complex network of lymph nodes, vessels, and organs such as the spleen and thymus serve as filters, trapping microbes, cancer cells and foreign substances, which are then destroyed by lymphocytes.

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How might abundant amounts of food allow herons to reproduce more often?

Answers

An abundant amount of food means that the competition over food will be less and chance to get food will be higher. This will increase the survivability of the herons so there will be more herons survive until reproduction age. That means the number of herons reproducing will be increased. Reproduction also needs resource and less happens when competition is fierce. Abundant food makes the herons able to recover more quickly.

How many carbon atoms are in w molecule of maltose if the molecule has 12 oxygen atom?

A)12

B)24

C)10

D)6

Answers

It would have 12 carbon atoms since there are 6 carbon and 6 oxygen per molecule.

So the answer is A, 12.

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Which sensation(s) does the vestibulocochlear nerve carry?

Answers

this is the answer check it out

European cuckoo birds lay their eggs in the nest of other bird species, allowing the other birds to raise their young. the cuckoo birds are therefore:

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The young of the cuckoo birds kill the other birds young and the parents of the other bird spices raises the cuckoo bird as its own leaving the European cuckoo bird who had laid the egg to continue with its life without having to raise its young.

European cuckoo birds and other species engage in brood parasitism, laying their eggs in the nests of other birds to avoid parental care.

European cuckoo birds practice brood parasitism by laying their eggs in the nests of other bird species, letting the host birds raise their young. This behavior allows cuckoos to avoid the high costs of parental care. Some other bird species, like cowbirds, also engage in similar parasitic behavior by laying their eggs in other birds' nests.

What effect would a drop in the size of the krill population have on the antarctic food web and why?

Answers

Euphasia superba, Antarctic krill, are the base of the food chain in the Southern Ocean that surrounds Antarctica. Any decline in their population would mean that the remainder of the food chain would be forced into warmer water to find food.

Answer:

Krill is an zooplankton species that is extremely abundant in Antarctic water bodies. These zooplanktons feeds on phtoplanktons present in the Antarctic water bodies. Therefore, in antarctic food chain Krill belong to primary consumer trophic level. In Antarctic they are source of food for seals, penguins, whales, fishes and birds. These are included in secondary, tertiary and quaternary trophic levels of the food chain. The drop in the size of the krill population will result in limitation of populations of species at higher trophic levels. As, many food chains are interconnected to form a food web therefore, the drop in size of Krill in one food chain will also affect the overall food web of Antarctica.

Distinguish between external and internal stimuli. give an example of each.

Answers

for a organ or organism to respond to a external is called sensitivity tbh i dont know internal .. sorry ut if this helped at all please thank me :)

organism to respond to a external is \sensitivity

Explanation:

What assembles some components of the cell membrane modifies proteins has ribosomes attached to it?

Answers

The endoplasmic reticulum assembles components of the cell membrane. And because the question states that it has ribosomes attached to it, the answer would be the rough endoplasmic reticulum.

Final answer:

The rough endoplasmic reticulum (RER) is responsible for assembling some cell membrane components, and modifying proteins, and has ribosomes for protein synthesis. It also produces phospholipids for the cell membrane.

Explanation:Structure Responsible for Protein Synthesis and Modification

The cellular structure that assembles some components of the cell membrane, modifies proteins, and has ribosomes attached to it is the rough endoplasmic reticulum (RER). Ribosomes are the cellular structures responsible for protein synthesis. They are found attached to the RER, synthesizing proteins that are then transferred into the lumen of the RER, where they may undergo further modifications such as folding or receiving sugar chains. In addition to protein modification, the RER synthesizes phospholipids for the cell membrane. The modified proteins and newly made phospholipids are packed into vesicles, which then travel to and fuse with the Golgi apparatus for final modifications before being transported to their final destinations, such as the plasma membrane.

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What element on the periodic table has 85 protons and 86 electrons?
PLEASE HURRY!

Answers

The element is Rubidium

What is evolutionary theory?

Answers

The evolutionary theory is that the animals and plants we have today evolved from something else to be able to adapt to their surroundings and be able to live on

hope this helps

Determine how hypotonic hypertonic and turgor pressure are interrelated.

Answers

Hypotonic, hypertonic and turgor pressure are related to each other. Hypotonic refers to a condition or a solution where the concentration of water is more inside than outside (less salty or less sugary). Hypertonic refers to a condition when the concentration of water inside is less that outside (more salty or more sugary). Turgor pressure refers to the difference in the pressure due to difference in the concentration of water.

If a living cell is put in a hypertonic solution (more sugary) then, water will exit the cell and enter the hypertonic solution to balance water content on both the sides. This will also lead to the change in the turgor pressure. Thus, hypertonic, hypotonic and turgor pressure are interrelated.

How do abiotic factors change within a community as a result of the succession of vegetation?

someone help plss

Answers

If at first there was only grass in the community, the organisms living there would not be very protected by the wind and you could say that the wind is strong.
If, later, in that same community, there grows a thick forest, the trees would shelter the organisms from the wind organisms hiding behind or inside trees would be able to hide, the living factor wind had changed in that community as a result of the succession of vegetation.

The abiotic factors in the community have changed as the vegetative cover increases: more vegetative cover leads to the consumption of more water due to the presence of life forms; a dense forest is the result of less sunlight on the ground; and so on.

What is the importance of abiotic factors in a community?

Abiotic factors are non-living physical and chemical elements in the environment that can influence the growth and behavior of living organisms, such as temperature, light, water, soil, and air quality and these factors, determine species survival rate, can have a significant impact on the structure and functioning of a community, for example, if a community is located in an area with cold winters, only species that are adapted to survive in cold temperatures will be able to survive there.

Hence, the abiotic factors in the community have changed as the vegetative cover increases: more vegetative cover leads to the consumption of more water due to the presence of life forms; a dense forest is the result of less sunlight on the ground; and so on.

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I have a lot and I mean a lot of work if anyone would be willing to help out on this I would be so thankful, please site the websites!!!!!!! Thank you so much

Answers

Hi. I know for a fact (on the web) that they all have sells in their body. They also can breathe. Through lungs or gills underwater and shore creatures are breathing and their calls are a part of their system. But I do not know if bactierium is living with cells or gills/lungs
Hope this helped!!!v :D

The property of water whereby molecules tend to stick to one another is called:

Answers

The property of water whereby molecules tend to stick to one another is called adhesion.

I hope this helps!

Adhesion and cohesion effect every water molecule on Earth and their interactions with other molecules.

What is adhesion and cohesion?

The ability of similar molecules (of the same substance) to adhere to each other as a result of mutual attraction is the quality known as cohesion. The capacity of distinct molecules or surfaces to attach to one another is referred to as adhesion. Solids, for instance, possess excellent cohesive qualities, which allow them to avoid adhering to the surfaces with which they come into contact.

Cohesion: Water has a natural tendency to attract more water. Adhesion: Water has a tendency to draw other substances to itself. Both adhesion and cohesion are qualities of water that have an effect on each and every water molecule on the planet, as well as the way water molecules interact with the molecules of other substances.

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Territorial behavior does not extend to organisms of different species. please select the best answer from the choices provided t f

Answers

false! Territorial behavior does not extend to organisms of different species.

The given statement is false.

The territorial behavior is an intra-species social behavior of the organism. In territorial behavior, the organism marks its territory and prevents it from the incursion of the other members of the same species. This behavior is not an inter species behavior, so, the effectiveness of the marking of the territory remains within the same species.

In an emergency, the adrenal glands secrete "emergency" hormones, while the body prepares for fight or flight directed by

Answers

the sympethetic nervous system

Jack was diagnosed with persistent depressive disorder and has experienced recurrent episodes of major depressive episodes. in the intervals between the episodes, he does not seem to return to ""normal."" jack's condition is referred to as

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Jack's condition is referred to as DOUBLE DEPRESSION.
Double depression is a medical condition in which the affected individual experience chronic depressive mood which is accompanied by one or two other symptoms of clinical depression which last for a minimum of at least two years. It is often a difficult condition to treat.

Correctly match the term and definition: extending a body past the anatomical position

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hyperextension.

Hyperextension is a extension of a limb, a joint or part of the body beyond the normal limit.This can be a good exercise that works the lower back, the mid and upper back, specifically the erector spinae that suport our spine.

Basically, this range of motion is how far in each direction that joint can bend comfortably.

Vwhat type of body movement occurs in the lower leg when a person kicks a soccer ball forward?

Answers

Here is a diagram I found online if it helps!

Flexion and extension

Which congenital disorder is characterized by local narrowing of the aorta just proximal to the insertion of the ductus arteriosus?

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This is coarctation of the aorta. This condition makes it harder for the heart to pump oxygenated blood throughout the body, leading to difficulty in breathing or feeding, especially at an early age. Left untreated, this could lead to heart failure later in life.

What kind of solution occurs in your mouth when you eat something with a high salt content? a hypotonic solution an isotonic solution a hypertonic solutionWhat kind of solution occurs in your mouth when you eat something with a high salt content? a hypotonic solution an isotonic solution a hypertonic solution

Answers

Salt has a very low water potential. And therfore the answer is hypertonic solution, it means a solution with lower water potential than that of the cytoplasm in the cells. It also means a solution with higher concentration

In the circulatory system nutrients such as glucose and amino acids are transported by

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In the circulatory system, nutrients such as amino acids and glucose are transported by the PLASMA.
The plasma is the liquid portion of the blood and one of its most important function is to transport materials such as glucose, amino acids, hormones, enzymes, water, etc.

Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane?

Answers

icwyauYIsks :-) s j k koo oplvzskk mlllllllllxlzxxvklk nom

Answer:

what are the options

Explanation:

True or false? pathogens can enter the body through animal bites.

Answers

they can enter through wounds/bites, so probably, yes

How might a decrease in biodiversity affect medical discoveries and treatments?

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People depend on biodiversity in their daily lives, in ways that are not always apparent or appreciated. Human health ultimately depends upon ecosystem products and services (such as availability of fresh water, food and fuel sources) which are requisite for good human health and productive livelihoods. Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause political conflict.

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