Answer:
In natural selection, genetic mutations that are beneficial to an individual's survival are passed on through reproduction. This results in a new generation of organisms that are more likely to survive to reproduce. ... Those differences are at least in part determined by their genes.
Explanation:
hope that helps!
Which is a specialized feeding structure found in some mollusks?
mantle
radula
tube foot
spine
Answer:
radula
Explanation:
Answer:
radula
Explanation:
hope it helps
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
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.
(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
Difference between inspire and expire air
Answer: Inspired gas is the gas we take in during breathing which mostly contains oxygen in adequate amount whereas expired gas is the gas we breathe out which is mostly carbon dioxide.
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
Which phrases describe groundwater?
Answer:
groundwater refers to the water present underground, in the spaces and cracks in the sand, soil, and rock.
Explanation:
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.
True or False- Protein can act as a energy source
Answer:
true, protein can act as an energy source
Answer:
yes
Explanation:
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.
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:
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.
Which is the most likely application of stem cell research?
A. a cure for cancer, a disease in which cells divide rapidly and without proper control
B. a treatment for viral infections, in which viruses invade cells
C. a treatment for macular degeneration, in which cells of the eye are damaged or killed
D. a cure for genetic disorders, which are inherited from either or both parents
Answer:
The answer is C.
Explanation:
Found it on a Quizlet!
I hope it's right.
Stem cell research is to cure the disease in the regenerative method by stem cells, hence option c is correct.
What is stem cell therapy?Tissue produced from autologous induced pluripotent stem cells (iPSC) to cure advanced "dry" age-related macular degeneration. To replace or repair damaged cells or tissues, stem cell treatment is employed.
Many various types of eye ailments, such as age-related macular degeneration (AMD), are being investigated to see if stem cell treatment may be used to treat them.
The most common stem cell treatment at the moment is multipotent hematopoietic stem cell (HSC) transplantation to cure macular degeneration.
Therefore the majority of the time, target cells come from the bone marrow, peripheral blood, or umbilical cord blood, hence option c is correct.
Learn more about stem cells, here:
https://brainly.com/question/10010224
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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.
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:
5. How do the concentrations of E and I compare?
a. I is higher
b. l is lower
c. I and E are equal.
d. The graph does not include enough data to
compare concentrations,
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:
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
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.
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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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:
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.
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.
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!
I need the answer ASAP :(
Answer:
3 and 4
Explanation:
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:
In a food web, energy is transferred from one organism to another. As energy moves between the trophic levels, only a small amount of energy is passed to the next level. Most food webs begin with the energy of producers. Where do producers get their energy? A) All energy originates with producers. B) Producers get their energy from the soil C) Producers decompose organisms to create energy. D) Producers use solar energy to produce glucose in the process of photosynthesis.
Answer:
the answer its D
Explanation:
i just did it on USATestPrep
Answer:
B) glucose and oxygen
Explanation:
The products of photosynthesis are: glucose and oxygen
In photosynthesis, the sun provides the energy to plants which is used in the process of photosynthesis to produce chemical energy in the form of glucose.
Sunlight + CO2 + H2O → O2 + glucose
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.
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.
HOW CAN WE BE GOOD AN CHEERFUL
Answer: We can be good and cheerful by being with others who make you smile. Studies show that we are happiest when we are around those who are also happy. You can also be good and cheerful by doing things you love and listening to your heart.