Answer:
1. The core is made almost entirely of metal specifically, iron and nickel.
2. The structure of the inner core iron and nickel.
3.Earth's outer core is a fluid layer about 2,400 km (1,500 mi) thick and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle.
4.In terms of its constituent elements, the mantle is made up of 44.8% oxygen, 21.5% silicon, and 22.8% magnesium. There's also iron, aluminum, calcium, sodium, and potassium. These elements are all bound together in the form of silicate rocks, all of which take the form of oxides.
5.The asthenosphere is now thought to play a critical role in the movement of plates across the face of Earth's surface.
Explanation:
What progress has been made in the HIV epidemic?
It is now possible to take a combination of HIV-fighting drugs, also called antiretroviral therapy, that prevents AIDS from developing when the virus is in the body.
if you mean where it leads to I say HIV leads to AIDS or in other words...progress has been made towards the goal of ending the HIV/AIDS epidemic due to advancements in both prevention and treatment.
hope this helps!
Feathers either play a role, or may have played a role, in _____. Feathers either play a role, or may have played a role, in _____. courtship extended hops flight gliding all of these
Answer:
flying
Explanation:
After a copper smelter begins operation, local downwind populations of plants begin to adapt to the resulting air pollution. Scientists document, for example, that the acid tolerance of several plant species has increased significantly in the polluted area. This is an example of
Answer:
Adaptation.
Explanation:
Adaptation occurs when the acid tolerance of several plant species has increased significantly in the polluted area. The main reason for this tolerance is the change in the genetic makeup or mutation occurs in the cell due to the exposure of DNA to the chemicals of the environment that cause pollution. The plant adopt the environment by producing certain chemicals that cancel the effects of pollutants and as a result, the plant survive.
When designing an experiment, you come up with the question: How does the amount you talk to a plant help it grow? Which would be the best hypothesis
Answer:
The correct answer is - "If you increase the amount you talk to plants, then they will grow taller"
Explanation:
A hypothesis is a proposed or assumed explanation for the natural system or problem. It forms on the pre-existed or known data or knowledge. A good hypothesis should have the ability to relate to dependent and independent variables.
In this case, the best hypothesis would be "If you increase the amount you talk to plants, then they will grow taller" as it relates to the dependent and independent variables that are the growth of the plant and talking to the plant respectively.
The resting potential of resting neuron is caused by ________.A.A higher concentration of Na+ on the outside of the cell making it more positive outside.B.A higher concentration of Na+ on the inside of the cell making it more positive inside.C.A higher concentration of K+ on the outside of the cell making it more negative outside.D.A higher concentration of K+ on the inside of the cell making it more positive inside.
The resting potential of a resting neuron is caused by a higher concentration of Na+ on the outside of the cell making it more positive outside. So, it's A.
What do you mean by Resting potential?Resting potential may be defined as a condition of the imbalance of electrical charge that exists between the interior of electrically agitated neurons and their surroundings.
During resting potential, the passive efflux of K+ ion is more than the influx of Na+ ions. This imbalance makes the inside of the cell more negative as compared to the outside.
Therefore, the correct option for this question is A.
To learn more about the resting potential, refer to the link:
https://brainly.com/question/15459255
#SPJ2
Why is it important to protect networks of ecosystems and habitats? Provide an example of a species in Alberta that would benefit from such protection and state why
Answer:
To maintain stability.
Explanation:
It is important to protect networks of ecosystems and habitats in order to get healthy and stable environment because the environment depends on ecosystems and habitats. If there is no ecosystem or habitat is destroyed then the whole ecosystem will greatly damaged that leads to the extinction of many animals that maintain stability in the environment. Swift fox (Vulpes velox) and Bison (Bison bison athabascae) are the two species that can be protected by protecting habitat and ecosystem.
Have you ever had to estimate something for which there wasn't an exact answer? What was it? What tools did you use to
make your estimation? Discuss.
Answer: Yes, estimation of a population of plant species in a given area. The tool I used was a QUADRAT.
Explanation:
Plants in a small area are easy to count and their distribution is recorded on a map or scale diagram for the area. For larger areas, quadrats are used to obtain a fairly accurate estimate of the number and types of plants in those large areas.
The ESTIMATION of the population of plants can be done using a method called the quadrat sampling method. Here, a QUADRAT which is a rectangular or square frame(tool) made from thick wire, is thrown at random several times. On each landing, the area covered by if is observed. The type of species and their number within the quadrat are recorded. The average number of times each species appears is calculated and the most frequent or dominant species is then determined.
Some quadrats are specially made to mark off an area for the study of seasonal variations of plants. They are sturdier, larger and permanent and can thus serve their purpose through the seasons. These quadrats often have a mapping grid attached so that the flora within it can be mapped at regular intervals.
The Florida Everglades is a large area of land formed by a wide, shallow, slow-moving sheet of fresh water. Species that live in the Everglades must be able to thrive in
moist conditions year-round. What kind of ecosystem is the Everglades?
1.lale
2.beach
3.wetland
4.coral reef
Can someone please help me?
Answer:
Number 3 (WetLand)
Explanation: I've been to the everglades
Question #7
Which adaptation would allow an animal to survive in the tundra?
A) estivation during the summer months
B) an insulating layer of fat under the fur
C) nocturnal behavior
D) large ears
Answer:
B
Explanation:
Tundra is a cold place, animals need to be able to adapt to harsh cold climate in order to survive.
hi! i’ll give brainliest please help
Answer:
Water flow becomes slower when the river bends.
Explanation:
The sediment cannot be left behind if it goes too fast. So, the river slowed down.
Answer:
I say the answer is A the first one!!
Explanation:
My answer is A the first one!!
How were Redi’s and Pasteur’s experiments similar?
Both studied the growth of microbes in broth.
Both studied flies emerging from meat.
Both tested the idea of spontaneous generation.
Both tested whether pasteurization kills microorganisms.
Answer: Both tested the idea of spontaneous generation.
Explanation: hope this is right and have a great day or night!! :)
what do the results suggest about ways that milkweed bug populations are limited in nature?
Answer:
Temperature.
Explanation:
Temperature was the only limiting factor that controls and limits the size of the population of milkweed bug in the nature because these milkweed bug are very sensitive to temperature. Little increase or decrease in temperature can cause adverse effect to the population f milkweed bug in that environment. Milkweed bugs need food, water, space, shelter and a mate in order to survive a well as increase in population of milkweed bug.
Describe one way that organisms have
evolved over time.
Answer:
Single celled to multi cellular.
Explanation:
In the early years of planet earth, organisms were single cellular. Through evolution and luck, the single celled organisms evolved into multi cellular organisms. For example, from a single celled Amoeba to a multicellular jellyfish. Hope this helped
the food substance which when tested with iodine solution turns blue-black is A . protein B. oil C.vitamin D. starch
Answer:
Explanation:
the food substance which when tested with iodine solution turns blue black is starch.
Which characteristic is associated with winter as compared to summer?
Choose the correct answer.
noon sun lower in the sky
higher daytime temperatures
more daily hours of sunlight
longer days and shorter nights
Answer:
noom sun lower in the sky
what are called micro organisms
Answer:
A microorganism, or microbe, is a microscopic organism, which may exist in its single-celled form or a colony of cells. ... Microorganisms include all unicellular organisms and so are extremely diverse. Of the three domains of life identified by Carl Woese, all of the Archaea and Bacteria are microorganisms.
Answer:
Miro organism are the organism which a person can not see from his/her naked eye.
Explanation:
How does increasing in carbon dioxide affect photosynthesis?
Answer:
An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction, and so the rate of photosynthesis generally increases until limited by another factor.
This type of tree is not found in the temperate forest because its shallow roots cannot withstand the climate.
A.) beech tree
B.) oak tree
C.) maple tree
D.) palm tree
Explanation:
Maple tree is not found in the temperate forest because its shallow roots cannot withstand the climate.
VilliGroup of answer choicesgenerate movement of materials in the large intestine.are found throughout the gastrointestinal tract.contain both smooth and skeletal muscle fibers.increase surface area in the small intestine.All of the choices are correct
Answer: The VILLI (increase surface area in the small intestine).
Explanation:
Glucose, amino acids, fatty acids and glycerol, as well as , vitamins and minerals salts are absorbed in the small intestine. The walls of small intestine are specially adapted to carry out this function.
For efficient adsorption, a large surface area is necessary. The walls of small intestine have folds and furrows which serve to increase its surface area. These small finger-like projections are called the VILLI.
The inner surface layer or epithelium of each villus is thin; this allows the absorption of the end-products by either diffusion or active transport through it. There is a rich supply of blood vessels and lymphatic vessels containing blood and lymph respectively to carry away the absorbed food substances. In each villus( singular) , there is a blind lymphatic tube called a lacteal surrounded by a network of blood capillaries. The lymph in the lacteals transports carboxylic acids and glycerol which usually recombine to form fats again in the lacteals.
2. How many hydrogen atoms are in one molecule of camphor?
C10H160
16
10
26
27
Answer:
its not biology its chemistry
Answer:
there are 16 hydrogen atoms
Explanation:
each number following an element pertains to the number of atoms that element possesses
example: H2O = water (2 hydrogen atoms and one oxygen atom)
PLEASE HELP WOTH BIOLOGY!! WILL GIVE BRAIN!!
Answer:
D/4
Explanation:
Hom-zygous recessive is both genes are recessive/tt
Hom-zygous dominate is both genes are dominate/TT
Heterozygous is 1 gene is dominate the other is recessive/Tt
Answer:
As I think last option is the correct one
One of these in a biome would be the climate abiotic factor biotic factor Biome
Answer:
yes it is yes it is abiotic factor
Answer:
climate is an abiotic factor
Explanation:
remember abiotic = non living and biotic = living
climate is a non living thing therefore climate is an abiotic factor
During DNA replication two identical DNA molecules are produced from one original molecule. Which statement below explains why the newly formed molecules are identical to the original?
1. How
or an
alkali
you test to see if a liquid is an acid
how many bacteria cells are produced at time T4 ?
Answer:
256.
Explanation:
If a bacterium divides once in every half an hour, it means it will double in half an hour. Hence a number of the bacterium after half an hour will be 1×2=2. After one hour the number of bacterium will be 2×2=4. Similarly, it one and a half hours it will be 4×2=8. In two hours it will be 8×2=16 in two and half hours, it will be 16×2=32. In three hours it will be 32×2=64. In three and half hours it will be 64×2=128. Hence, in 4 (four) hours the number of bacterium will be 128×2=256.
Answer:
256 bacteria cells are produced at time T4.
Explanation:
according to wikipedia
Which term is defined as the components in an ecosystem, such as soil, air, and sunlight?
biometric
antibiotic
abiotic
biotic
Explanation:
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. Examples of abiotic factors are water, air, soil, sunlight, and minerals.
Help I’ll mark u brainless
Answer:
The answer is A
Explanation:
It is A because rock, water, and sand are all abiotic , is is NOT c because algae is a biotic factor
Could someone please help me? When is complementary DNA produced in the body?
Answer: Complementary RNA is produced for transcription - when it is making a protein
Complementary DNA is produced when the cell is replication - Mitosis & Meiosis
Explanation:
1.Cooking utensils with oil cannot be cleaned using fresh water.Why?
Answer:
Because you need to scrub them with soap first.
Explanation:
The reason is that if you don't and wash with water, the cooking utensils will stay greasy; that is why you need to scrub and then wash.
Which of the following is NOT a common adaptation? A Antibiotic Resistance B Longer Beaks C Mimicry D Camofaluge
Answer:you a ?
Explanation: