How does a molecular compound compare to the elements that make up the compound?
Answer:
The only difference between a molecular compound and an element is that in an element all the molecules are the same, but in a molecular compound there are different types of elements that make up the compound.
So an element is something you find on the periodic table, a molecular compound is created using different types of elements.
Which is a specialized feeding structure found in some mollusks?
mantle
radula
tube foot
spine
Answer:
radula
Explanation:
Answer:
radula
Explanation:
hope it helps
How do accessory organs such as the liver and gallbladder help with digestion if they do not come into direct contact with the food we eat?
Answer:
they just help us break down the food and then procces the food to the other organs
Explanation:
Which adaptation helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather? three layers of fur blubber finding shade underground white skin
Answer: Blubber
Explanation:
it makes sense and I took the test
The adaptation that helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather is a thick layer of blubber.
Animals such as whales and polar bears have a thick layer of fat known as blubber. Polar bears can stay warm because of this thick layer of blubber. This layer of blubber insulates their body in order to keep polar bears warm during extremely cold winter conditions.In polar bears, body temperature is maintained at 37° C due to their two layers of fur and a thick layer of blubber that insulate them.In conclusion, the adaptation that helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather is a thick layer of blubber.
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What happens in the electric circuit when the magnet spins?
Answer:
Moving magnetic fields pull and push electrons. Metals such as copper and aluminum have electrons that are loosely held. Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current.
Explanation:
The movement of a substance against its concentration (from low to high concentration) through a carrier protein is called _____.
Select one:
a. selective permeability
b. osmosis
c. facilitated diffusion
d. active transport
The gas cells need in order to release energy from sugar molecules is
A. Carbon dioxide
B. Water vapor
C. Nitrogen
D. Oxygen
Answer:
Oxygen
Explanation:
During photosynthesis, oxygen is released. I found this from a quizlet.
Answer:
Oxygen
Explanation:
How are cellular respiration and photosynthesis interrelated?
Answer:
Cellular respiration breaks down glucose, while photosynthesis, produces glucose, while photosynthesis is the process plants use to produce. glucose.
Explanation:
Which of the following statements would best describe Pseudacris crucifer?
A. larger than 1.5 inches, larger than 6 inches, warts, X-shaped mark on back
B. larger than 1.5 inches, smaller than 6 inches, warts, no triangular mark on head, X-shaped mark on back
C. smaller than 1.5 inches, warts, triangle between the eyes, stripe on back from head to tail
D. larger than 1.5 inches, smaller than 6 inches, smooth skin, triangle between the eyes
Answer:
The answer is B
Explanation:
I had this on study island.
Answer: Option D: larger than 1.5 inches, smaller than 6 inches, warts, no triangular mark on head, X-shaped mark on back
Explanation: Pseudacris crucifer is the last species of frog in the key. Therefore, one must work backwards through the entire key to determine Pseudacris crucifer's characteristics.The only way to get to step #5, where the frog was identified as Pseudacris crucifer, was to determine in step #4 that the frog had no triangular mark on its head.To get to step #4, the frog must not have had smooth skin. In order to get to step #3, our frog must have been smaller than 6 inches.Although we could have arrived at step 3 whether the frog was larger or smaller than 1.5 inches, the only answer choice provided that correctly listed the other characteristics of Pseudacris crucifer is : larger than 1.5 inches, smaller than 6 inches, warts, no triangular mark on head, X-shaped mark on back.
Which adaptation would be most beneficial to mammals of both the taiga and marine aquatic biomes?
Answer:
gills
Explanation:
Both taiga and marine aquatic biomes should regulate their body temperature. In aquatic marine biomes, fishes have gills which helps in retaining the temperature by allowing water to pass through the gills. This helps in retaining the temperature of the aquatic animals.
Answer:
a thick layer of fat for insulation
A. A scientific theory is an explanation of some aspect of the natural world. B. Theories have been thoroughly tested and are supported by multiple lines of evidence. C. A scientific theory may be modified as new lines of evidence become apparent. D. Scientific theories are concise, systematic, predictive, and broadly applicable. E. Scientific theories often integrate and generalize many hypotheses. Neil deGrasse Tyson once commented: "Some claim evolution is just a theory, as if it was merely an opinion." He went on to explain why a scientific theory, like evolution, is NOT just an opinion. Select which points he included in his argument? A) A, B, E B) A, B, D, E C) A, B, C, E D) A, B, C, D, E
Answer:
D) A, B, C, D, E
Explanation:
These are all important factors to consider when judging scientific theories. A scientific theory is not merely an inclination or vague idea a scientist has. Instead, a scientific theory is an explanation that is given to a broad range of phenomena. Scientific theories tend to be concise, coherent, systematic and predictive. However, they also admit modification as new evidence becomes apparent.
As a law maker, frame policies to reduce the pollutions.
Please anyone?
Will mark brainliest!
Answer:
Prohibit the cutting of down of trees.
Plastics and non-biodegradeable to be recycled and not dumped to water bodies.
Introduction of carbon-tax.
Explanation:
Carbonmonoxide is the major cause of greenhouse gases which is a huge pollutant in the atmosphere. This gas when released into the atmosphere from human activities like cooking; factory activities and the rest oxidizes in the atmosphere to form Carbondioxide which takes about 40years to be completely depleted in the atmosphere; however- this tall trees would help to absorb this Carbondioxide which is used for photosynthesis.
2. Dumping of waste that cannot be decomposed goes into water bodies which pollute the water bodies and reduce marine life.
3. Introduction of carbon-tax to reduce unguarded discharge of carbonmonoxide into the atmosphere from economic or household activities.
What are 3 potential solutions to stop heat waves? (what solutions are cities looking at) IN DETAIL. Please I need ur help
Answer:
Explanation:
Increase shade around your home
Planting trees and other vegetation lowers surface and air temperatures by providing shade and cooling through evapotranspiration. Trees and vegetation that directly shade your home can decrease the need for air conditioning, making your home more comfortable and reducing your energy bill. Trees also protect your family’s health by improving air quality, by providing cooling shade for outdoor activities, and reducing exposure to harmful UV radiation.
Install green roofs
A green roof, or rooftop garden, is a vegetative layer grown on a rooftop. Green roofs provide shade and remove heat from the air through evapotranspiration, reducing temperatures of the roof surface and the surrounding air. Green roofs absorb heat and act as insulators for your home, reducing energy needed to provide cooling and heating (which decreases your energy bill), improving indoor comfort, and lowering heat stress associated with heat waves.
Install cool roofs
Cool (or reflective) roofs help to reflect sunlight and heat away from your home, reducing roof temperatures. This allows for your home to stay cooler, reducing the amount of air conditioning needed during hot days. According to a study conducted in California1,cool roofs can provide annual energy savings of almost 50 cents per square foot. Such energy savings can also result in better air quality in your community and fewer greenhouse gases emitted to the atmosphere.
Use energy-efficient appliances and equipment
Using efficient appliances and equipment in your home can help to lighten the load on the electric grid during heat waves, thus ensuring a more reliable supply of electricity to your community. When purchasing products, look for EPA’s ENERGY STAR label to help you make the most energy-efficient decision. You can find the ENERGY STAR label on more than 60 kinds of products, including appliances, lighting, heating and cooling equipment, electronics, and office equipment. Replacing your old appliances and equipment with ENERGY STAR-qualified products can also help save you money.
Check on your friends, family, and neighbors
Heat waves can be dangerous for people’s health and safety, particularly for the elderly, young, sick, and poor. Checking on your friends, family, and neighbors during hot days and making sure they have access to air conditioning or cooling centers will help to prevent heat-related illnesses and death.
the eel is an example of a fish that suited to both freshwater and seawater. Which zone of an estuary would you expect to find eels in abundance
Answer:
A subtidal zone.
Explanation:
At that zone there would be a balance between fresh water and salt water. Fresh water stems from river processes while wavy waters stems from sea processes which produces salty water.
What would you expect to happen to the number of high tides in any given area if the rate of Earth's rotation doubles?
Answer:
high tides would also double within the span of 24 hours.
Explanation:
If the Earth's rotation doubled then the number of high tides would also double within the span of 24 hours. This is because low and high tides depend on the Earth's pull toward's the Moon, since as the ocean bulges toward the moon, a high tide is created. Therefore if Earth's rotation doubled, this would mean that pull towards the Moon would happen twice in 24 hours, and thus causing high tide twice.
What is mass flow system. Pls it's urgent.
Answer: Mass flow or bulk flow is the movment of substance in big masses or something moving in a big group.
Explanation:
Its kind of like a river or blood flowing through your veins because its a mass of a substance moving in a group.
James hutton's and Charles Lyell's work suggested that ?
Answer:
So basically, it was important to scientists like Charles Darwin, because it suggested that the earth we live on is actually old enough for evolution to have happened.
Explanation:
Im pretty sure my answer is correct.
Apuk’we, the common cattail is a versatile native edible plant for the Ojibwe people of Minnesota. They are important to the ecosystem for many reasons. They help stabilize marshy borders of lakes and ponds, help protect shorelines from wave erosion, providing spawning areas for northern pike, provide cover and nesting sites for waterfowl and marsh birds such as the red-winged blackbird, are a food source for muskrats and beavers, and humans, too. However, where native cattails once stood, now there is a vast lawn of nonnative narrow-leaved cattails or their hybrid offspring. These new cattails are taking over wetlands once populated by the native cattails, decreasing the biodiversity in these areas.
What kind of ecological relationship exists between the native and nonnative species of cattails in the Minnesota wetlands?
A) commensalism
B) competition
C) mutualism
D) predation
Answer:
B) Competition
Explanation:
The native and non-native cattails are competing for the area.
Answer:
Predation
Explanation:
The way the question is worded, gives me the effect that the nonnative species of cattails predated the native species and ultimately, lowered their numbers.
I was torn between competition or predation, but it cannot be competition due to the effect it's having on the native species. In competition, there's obvious tension between the two, though in this scenario, the species is just lowered completely. There's a chance it could be competition though, I'm not really understanding the wording of the scenario given; that's just me though.
So, ultimately, it's predation.
I need the answer ASAP :(
Answer:
3 and 4
Explanation:
Nearsightedness and farsightedness are caused by what ?
EXTRA POINTS IF YOU ANSWER
Answer: Nearsightedness, Farsightedness and Astigmatism. Nearsightedness (myopia) is a very common condition in which the light coming into the eye is not focused properly onto the retina, making it difficult to see objects far away. The condition is usually caused by an elongation of the eyeball that occurs over time.
Explanation:
The location of plate boundaries is most helpful in predicting the location of
Answer:
The movement and interaction of tectonic plates helps to explain many of Earth's features. Interpret data showing topography, the age of the sea floor, the location of volcanoes, and the location of earthquakes to predict the location and type of plate boundaries in a region.
Explanation:
(please helpp)
Which sources contain fresh water? Check all that apply.
a. groundwater
b. oceans
c. wetlands
d. rivers
e. ponds
f. seas
a, c, d, e
Groundwater, wetlands, rivers, and ponds all contain fresh water, whereas oceans and seas contain salt water. :)
Answer: Groundwater, wetlands, rivers, and ponds
Explanation: correct on Edge
Which phrases describe groundwater?
Answer:
groundwater refers to the water present underground, in the spaces and cracks in the sand, soil, and rock.
Explanation:
Arteries must be thicker than veins to be able to withstand the high pressure the heart exerts as it pumps blood into them. As blood travels
through the body, this pressure decreases. Blood pressure is the lowest in the veins as the blood heads back to the heart.
Based on blood pressure differences between arteries and veins, which of these must be true?
OA Blood flow tends to be faster in arteries than in veins.
O B. Blood pH tends to be higher in veins than in arteries.
OC. Blood flow tends to be faster in veins than in arteries.
OD. Blood viscosity tends to be higher in arteries than in veins.
Answer:
A Blood flow tends to be faster in arteries than in veins.
Explanation:
Veins and arteries are both blood vessels i.e. conducts blood in the circulatory system. As rightly said in the question, the walls of the arteries are thicker and stronger than that of veins in order to be able to withstand the high pressure of blood that flows into it from the heart. The veins, on the other hand, has a lower blood pressure since blood flows back into the heart.
Based on this fact that blood flows forcefully i.e. high pressure, out of the heart into the arteries, blood will flow faster in the arteries i.e. with high speed which is responsible for the high pressure that the blood exerts on its wall.
Answer:
Option A
Explanation:
Blood flow which is characterized by its velocity tends to be faster in arteries than in veins and inversely varies as its cross-sectional area. Blood flow is faster in the arteries as it carries blood away from the heart at high blood pressure rate and this continues if the cardiac output is continually compensated for.
Name six elements, compounds, minerals or form of energy that plants need to survive.
Answer:
Elements: nitrogen, magnesium, potassium, phosphorus, iron, calcium.
Plants also need carbon, hydrogen, and oxygen in large amounts, which they use to make sugars. Plants need water as well.
Can someone please help?? Most of the eastern United States is a _____ biome.
Answer:
eco biome
Explanation:
Answer:
Most of the eastern United States is a TROPICAL RAINFOREST bione
Explanation:
Cool, dry air moves over a body of warm water. The air becomes moister as a result. The overall “weight” of the air would be expected to
a. increase
b. decrease
c. remain the same
Answer:
Increase
Explanation:
The air would get heavier as a result
What is the best method to increase the accuracy of the parallax measurement of star distances?
keep a record of the observations and do not repeat them
take observations simultaneously with different instruments
keep a gap of about six months between two observations
take observations from two points which are very close to each other
Answer:
C.
Explanation:
Parallax method is used to measure the distance of nearby objects in space or measurement of star distances. Parallax method uses the measurement of movement of star's against starts at far points as Earth revolves around the sun.
To improve the accurate measurement of star distances through parallax method, a gap of about six months between two observations.
In the parallax measurement, two angles are measured and it includes Earth on one side of its orbit, Earth six months later on the other side of its orbit and side of a triangle formed by the star. This six month gap ensures that measurement of stars is taken from two farthest points which gives a large arc length.
As parallax is based on geometry so, it ensure that the large arc length will reduce the error in the measurement of the angle and the distance will be accurate.
Hence, the correct answer is C.
Answer:
c
Explanation:
1. form and structure of an organism or any of its parts morphology
2. the splitting of a lineage into separate and distinct species speciation
3. group of related organisms that share features and characteristics species
4. small or underdeveloped vestigial
Answer:
1) morphology
2) speciation
3) species
4) vestigal
Explanation:
Morphology is the study of forms or the physical appearance of organisms.
Speciation is the splitting of lineage into distinct species capable of interbreeding and producing fertile offspring.
Species is a group of organisms that are genetically related and share features and characteristics. They are capable of interbreeding and produce live offsprings.
Vestigal organs are organs that have lost their function over time, they are usually small and underdeveloped. Example is the human tail bone.
Which resources does the National Park Service manage? Check all that apply.
Answer:
Seashores, wildlife refuges, ecosystems, and endangered species.
OR
Preservation and recreation
It depends on what options you have.
I hope this helps!