The Brain is most active during REM sleep portion of sleep cycle. This portion of sleep cycle usually occurs for two hours, and when monitored, it is discovered that brain activity is mostly dynamic at this stage.
What is REM sleep?REM stands for Rapid Eye Movement and this is a stage in the sleep cycle of mammals and birds characterized by random rapid movement of the eyes.
Basically, sleep is divided into four major stages which include
AwakeLightDeepREM sleepThe first three stages of sleep are regarded as Non-Rapid Eye movement (NREM) stages. The first three stages comprises of about 75% of the total sleep time.
This movement of the eyes is followed by minimal muscle tone throughout the body, and the higher probability of the sleeper to dream vividly.
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Explain the levels of organization beyond our planet.
Answer:
there is not much the land and earth could be better-tooken care of
Explanation:
Why do proteins help you gain muscle
Answer:
proteins help you gain muscle because of the amino acids found in them.
proteins also carry antibodies, which help fight against infection, which eventually leads to muscle. Overall, proteins are super impotrtant.
Explanation:
Here are some foods that contain amino acids to help you gain muscle
meat and fish
eggs
dairy products
seeds and nuts
legumes like beans and lentils.
(My last answer got removed for "copyright" even though I typed it myself, so I made another ;)
What would be the answers for 33-34?
33. Look at the following strand. Is this. Chromosome or vene mutation
34. Look at the following strand. What type of mutation?
Please help
Answer:
chromosome
or venue mutations
with a population growth rate of 5% how long will it take for a population to double from 20,000 to 40,000 people?
Answer:
15 years
Explanation:
Compound growth
Equation:
20000 x 1.05 to the power of how ever many years needed
20000 x 1.05 to the power of 15 takes it just over, with 41578 people alongside decimals.
Therefore, it is 15 years.
Answer:
20 years for the population to double from 20,000 to 40,000
what is the three kind of volume
Sphere Volume = 4/3 πr³ , where r is the radius.
Cylinder Volume = πr²h , where r is the radius and h is the height.
Cone Volume = 1/3 πr²h , where r is the radius and h is the height.
Amir is asked to read this data chart on the Earth’s layers and temperature. Which layer represents the crust?
Data table containing the following four column headings. Layer number, Temperature Range in Celsius, Average Density in Gram per cubic centimeter, and Composition. Four rows are seen with the following readings. Layer 1, 4400-6100, 11.1, liquid nickel and iron. Layer 2, 200-400, 3.0, solid rock. Layer 3, 5000-7000, 12.8, solid nickel and iron. Layer 4, 500-4000, 4.5, molten rock.
A.
Layer 1
B.
Layer 2
C.
Layer 3
D.
Layer 4
Answer:
b.layer2
Explanation:“Crust” describes the outermost shell of a terrestrial planet. Our planet's thin, 40-kilometer (25-mile) deep crust—just 1% of Earth's mass—contains all known life in the universe. Earth has three layers: the crust, the mantle, and the core. The crust is made of solid rocks and minerals.
hope its help
How do you find the number of electrons for any atom?
Answer:
To find the number of electrons an atom has, start by looking up the element you're working with on the periodic table and locating its atomic number, which will be in the upper left-hand corner of the square. Then, identify the charge of the ion, which will be written as a superscript to the right of the element.
Hope this helps!
Answer:
the atomic number of an element is simpliy
the amount of electron present in an atom
Urban sprawl can lead to a chain reaction of problems as the human population of a region increases. Which of the following is a problem of urbanization that affects human health?
Lack of sufficient sewage facilities can lead to waterborne diseases.
More land is cleared for housing, businesses, and city services.
Too much cold air and dust in the air above cities.
Heavily paved cities and fewer trees add less heat to the atmosphere.
''Lack of sufficient sewage facilities can lead to waterborne diseases'' is a problem of urbanization that affects human health.
What is a problem of urbanization that affects human health?The problem of urbanization greatly affects human health because it provides a suitable environment for the growth of disease causing bacteria and viruses.
So we can conclude that ''Lack of sufficient sewage facilities can lead to waterborne diseases'' is a problem of urbanization that affects human health.
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So we can conclude that ''Lack of sufficient sewage facilities can lead to waterborne diseases'' is a problem of urbanization that affects human health.
Activity 2: Observing Seedlings
Compare the seedlings in your P, and P₂ plates. Record the color differences you observe between the P,
and P₂ seedlings. Remember that these are the phenotypes.
P, seedling color
P₂ seedling color.
F, seedling color
Compare the parental seedlings to the F, seedlings.
Which color is produced by the action of a dominant allele?.
Remember that each color is caused by the action of an allele of a color gene. As a class, decide on the
allele symbols you will use and record them here.
is the symbol for the dominant allele for
is the symbol for the recessive allele for
Using your allele symbols, fill in the following for the parental cross and the F₁.
P₁
X
P₂
↓
Germination can not be observed here, but if it is a monogenic trait controlled by complete dominance, then the genotype can be homo-zygous (e.g., AA) or heterozygous (e.g., Aa).
What is a dominant trait?In genetics, dominance refers to the phenomenon where one allele completely masks the expression of another allele (the recessive allele) in heterozygous individuals.
In this case, the genetic cross might be Parental 1 (AA) x Parental 2 (Aa) >> Filial 1 F1 1/2 AA + 1/2 Aa.
In conclusion, germination can not be observed here, but if it is a monogenic trait controlled by complete dominance, then the genotype can be homo-zygous (e.g., AA) or heterozygous (e.g., Aa).
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8. The relationship between the anemone and the boxer crab is an example of
mimicry
mutualism
Oparasitism
O commensalism
Answer:
The Answer is Mutualism.
Explanation:
...
What are phenotypes?
________ and _________
WHAT GOES IN THE BLANK
Answer:
Phenotypes are the two possible options. For example, if you have two parents crossed in a Punnett Square, you're two options for offspring would be Male or Female baby. So, what are your two options? That's what goes into the blanks. Then, you put your ratio.
Drag each tile to the correct box.
Arrange the following stages of the testing process.
Developing the test
Planning the test
Documenting the test
Conducting the test
Answer:
Developing
Planning
Conducting
Documenting
Explanation:
Use Logic
How is a delta formed?
A. When the river deposits the load at the sour of the river
B. When the river deposits the load at the mouth of the river
C. When the river breaks through the walls of the river
D. When the water in the river stops moving
What do we call when there is loss of water from plants surfaces, especially in minute surface pores of stomata in leaves
If you examined the cells of a pigs snout under a microscope, you would see a firm ground substance with tiny cells called
Answer:
lacuna
Explanation:
cartilage connective tissue has lacuna
The tissue characteristically has spaces or chambers called lacuna (lacunae, pl.)
http://faculty.gordonstate.edu
Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed
to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks
and some look like a fine powder.
Which statement correctly describes these broken pieces of the sample?
Answer:
both statement is correct.......
In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in
In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in Competition is an relations between organisms or species in which both need a resource that is in limited pool.
What is competition in an ecosystem?Competition will happen between organisms in an ecosystem when their niches overlay , they both try to utilize the exact resource and the resource is in lack of supply.
Fuana contend for chow, water and area to live. flora contend for light, water, minerals and root area.
So,Competition is an relations between organisms or species in which both need a resource that is in limited pool.
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ACTIVITY 2: BIKINI BOTTOM GENETICS INSTRUCTIONS: PART A: Smiley Face Traits (1) Get two coins and mark one coin with a "F" and the other with a "M" to represent each of the parents. The parents are heterozygous for all the Smiley Face traits. (2) Flip the coins for parent for each trait. If the coin lands with heads up, it represents a dominant allele. A coin that lands tails up indicate a recessive allele. Record the result for each person by circling the correct letter. Use the results and the Smiley Face Traits page to determine the genotype and phenotype for each trait.
Answer:
Mark one coin with an "F" and the other with an "M" to represent each of the parents. The parents are heterozygous for all the Smiley Face traits.
What is the function of the dendrites of a neuron? A. They pick up signals and send them to the cell body. B. They make more neurons. C. They connect the neuron with other dendrites. D. They process information sent from other neurons
Answer: A. They pick up signals and send them to the cell body.
Explanation:
Meosis occurs in a ______________ that is a _______________ that undergoes a ___________________
Meiosis occur in diploid cell that undergoes reductional division.
what is meiosis?Meiosis, also called reduction division, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or germ cells.
The process of meiosis is characteristic of organisms that reproduce through fusion. Such species have in the nucleus of each cell a diploid (double) set of chromosomes, consisting of two haploid sets (one inherited from each parent). These haploid sets are homologous—i.e., they contain the same kinds of genes, but not necessarily in the same form.
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50 POINTS AND BRAINLY (25 points) IF RIGHT! DO ASAP PLEASE
Match the terms to the definition.
Question 1 options:
The spinning of a planet on its axis, causing day and night.
A group of objects that orbit a star.
A force of attraction that keeps planets orbiting the sun.
Jupiter, Saturn, Uranus, Neptune. Gas giants.
The orbit of a planet around the sun. On Earth, one year.
Huge clusters of stars, gas, and dust bound by the force of gravity.
Mercury, Venus, Earth, Mars. Terrestrial, rocky.
The idea of that the Earth and planets orbit the sun. A sun-centered view.
A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
The theory the universe came forth from a single spot in an enormous explosion.
1.
Big Bang
2.
Doppler Effect
3.
Nebula
4.
Solar System
5.
Geocentric theory
6.
Heliocentric theory
7.
Gravity
8.
Galaxy
9.
Rotation
10.
Revolution
11.
Inner planets
12.
Outer planets
13.
Meteor
14.
Meteorite
15.
Meteoroid
Matching the terms to their definitions is as follows:
Terms Definitions1. Big Bang The theory the universe came forth from a single spot in an enormous explosion.
2. Solar System A group of objects that orbit a star.
3. Heliocentric theory The idea that the Earth and planets orbit the sun. A sun-centered view.
4. Gravity A force of attraction that keeps planets orbiting the sun.
5. Galaxy Huge clusters of stars, gas, and dust bound by the force of gravity.
6. Rotation The spinning of a planet on its axis, causing day and night.
7. Revolution The spinning of a planet on its axis, causing day and night.
8. Meteorite Inner planets
9. Meteoroid Outer planets
10. Meteor A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
11. Gas giants Jupiter, Saturn, Uranus, Neptune.
12. Terrestrial, rocky Mercury, Venus, Earth, Mars.
Thus, the terms have been matched to their definitions as above.
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Does the King Fish have the same organ of respiration as Dolphins do? Justify your answer
Answer:
Dolphins are mammals, not fish. Unlike fish, who breathe through gills, dolphins breathe air using lungs.
They don't have gills, so they can't breathe underwater like fish. They breathe through a set of nostrils on top of their heads known as a blowhole. While swimming or resting under the water, they can take breathes by exposing only the tops of their heads to the air.
Like all mammals, dolphins have lungs and breathe air. They are the organ of the respiratory system which process the air inhaled through the spiracle.
Nutrient rich soll is _____.
A) found near the base of mountains
B) found in river deltas
C) usually infertile
D) contains low levels of potassium(K)
Nutrient-rich soil is the correct answer is- B. found in river deltas.
What is River delta?River delta is a landform that is produced by the deposition of sediments, which are brought by water flowing in the river.
River deltas contain nutrient rich soil because sand from different parts of land is brought by the flowing water, which makes them fertile.
Thus, option B) is the right answer.
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What are the components of DNA? What’s the structure of nucleotides and how do they connect?
Answer:
Components of DNA includes ribose sugar, phosphate group and four nucleotides(Adenine,cytosine,thymine,guanine).
Explanation:
DNA is made up of two linked strands that are wrapped around each other in a coiled pattern forming the double helix.Each strand of the DNA is made of a backbone that consist of a ribose sugar and a phosphate group.Each phosphate group is attached to one of the four nucleotides(Adenine,cytosine,thymine,guanine).The two strands of a single DNA molecule are linked by the nucleotides.Adenine and Guanine are called purines.cytosine and Thymine are called pyrimidines.Adenine from one strand makes a double bond with Thymine from another strand linking the two strands of DNA molecule.Cytosine from one strand makes a triple bond with Guanine from another strand linking the two strands of DNA molecule.A picture of DNA and nucleotide structure is attached below.I hope it helps.why is it an advantage to move food around your mouth before you swallow it?
Answer:
Because it makes the food more tasty and it's easier to break down the food particles
Explanation:
there's the 5 taste sensory in each part of your tongue and each part of it specializes in a taste, the front of your tongue specializes in sweetness, the middle part of your tongue specializes in saltiness, the upper part of your tongue specializes in sourness and the back part specializes in bitterness.
It also breaks larger particles into smaller particles to reduce the stress of your esophagus.
explain the role bacteria play in a human body?
Answer:
The bacteria in our bodies help degrade the food we eat, help make nutrients available to us and neutralize toxins,
Explanation:
Based on the section "Zeus Is Helper And Protector," which of the following statements is TRUE? A Zeus and Jupiter are the same god. B Zeus tells rich people to only care for themselves. The Greeks believe Zeus is a powerful god. Zeus does not have the power to punish people. Park Next C D
Answer:
The Greeks believe Zeus is a powerful god
50 POINTS!!!! The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answer:
Heterotrophs
Explanation:
Protists, plants, fungi and animals alike have heterotrophic cells. This meaning they depend on organic molecules for energy as opposed to plants that can make their food from abiotic factors.
A trait I which the alleles are not dominant over one another
Answer:
They are co-dominance and incomplete dominance.
Explanation:
Co-dominance occurs when both alleles in a heterozygous genotype for a trait are both equally expressed. An example is the human AB blood group, in which both the A and B alleles are equally expressed.
Incomplete dominance occurs when the heterozygous genotype for a trait is expressed as a blend. An example is blue feather color in chickens, in which a black allele and white allele together are expressed as blue feather color.
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How does diversification affect the population?
1. Diversification affects the population because people are living longer.
2. Immigrants do not count as part of the population.
3. The number of immigrants coming into the United States greatly affects the population.
4. People are have fewer children.