Answer:
Pheomelanin
Explanation:
Dark-skinned individuals produce more melanin than those with pale skin.
Light-skinned people typically have a greater proportion of pigment in their skin Pheomelanin, Dark-skinned persons produce more melanin than those with pale skin.Thus, option "B" is correct
What is the difference between pheomelanin and eumelanin?
Eumelanin is black or brown tint and pheomelanin is red or yellow pigment.
Individual who create lots of pheomelanin tend to have lighter skin, often because of freckling.
Freckles occur when melanocytes clump together. Melanocytes are generally scattered rather evenly in the skin.
Thus, option "B" is correct, Dark-skinned individuals produce more melanin than those with pale skin.
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How was Hawaii formed, and how does this provide evidence for convection happening?
HELP PLEASE
By many volcanic eruptions eventually forming an island.
What PERCENT of a km is 234m?
Cross a heterozygous brown eyed father with a blue eyed mother. What percentage of the children will have brown eyes?
A) 25%
B)100%
C)75%
D)50%
How do dating methods of geological evidence prove the convolution of earth systems?
Answer:
because it can tell you how old a segment of rock is and what type of minerals are in the segment of rock
Explanation:
Reverse faults are the result of tension.
True or false?
Answer:
can you helppp me with dna
Identify the Kingdom:
Eukaryotic
Nucleus
Most Multicellular/Some Single Celled
Have a Cell Wall
Heterotrophic
No Chloroplasts
Feed by absorbing nutrients from decaying matter
a) Protista
b) Animalia
c) Fungi
d) Eubacteria
e) Plantae
f) Archaebacteria
Answer:
Kingdom Fungi
Explanation:
Fungi are characterized as eukaryotic, unicellular or multicellular, having cell wall, lack chloroplast and take food by absorption.
Which of these technologies may have a positive effect on fish supply worldwide?
fish farming
tracking technology
bottom trawling
bigger fishing boats
Answer:
tracking technology
Explanation:
DNA contains the code for for constructing which molecules?
Lípids
Proteins
Carbohydrates
Suzars
Question 13
6.7 pts
Answer:
proteins
Explanation:
Protons give an element its ________.
1)
electronegativity
2)
bonding properties
3)
atomic number
4)
isotope
5)
bonding properties
Answer: 3. Atomic number
Explanation: Good luck! :D
Review: Fill in the boxes with missing vocabulary Need Help: Click here Polymer Monomer Protein nucleotide
Answer:
This question is asking for the polymer and monomer of nucleotide and protein respectively.
The answer is:
Protein - monomer is AMINO ACID
Nucleotide - polymer is NUCLEIC ACID
Explanation:
There are four major biological molecules found in nature namely: protein, carbohydrates, fats and oil, nucleic acid. These biological molecules are, however, complex and polymeric in nature and like every other polymer, they must contain monomers that make up their structure.
- PROTEINS are made up of monomers called AMINO ACIDS.
- CARBOHYDRATES are made up of monomers called MONOSACCHARIDES.
- LIPIDS are made up of monomers called FATTY ACIDS.
- NUCLEIC ACIDS are made up of monomers called NUCLEOTIDES.
what is the main way viruses cause diseases in the body?
What three parts make up the modern cell theory
In a normal respiratory cycle the volume of air that moves into and out of the lungs is about 504 mL. The reserve and residual volumes of air that remain in the lungs occupy about 2030 mL and a single respiratory cycle for an average human takes about 4 seconds. Find a model for the total volume of air V(t) in the lungs as a function of time.
Answer:
[tex]V(t)=252sin(\frac{\pi}{2}t )+2282[/tex]
Explanation:
The volume of air increases and decreases, hence the volume of air can be represented as a sine function.
A sine function is of the form:
y = Asin(B(x - C)) + D
Where A is the amplitude, B is the frequency, C is the horizontal shift and D is the vertical shift.
Therefore, the total volume of air V(t) in the lungs as a function of time is given by:
V(t) = Asin(B(t - C)) + D
Since the volume of air in and out of the longs is 504 ml, hence the amplitude (A) = 504/2 = 252
There is residual air of 2030 ml minimum in the lungs and a maximum of 2534 ml (2030 ml + 504 ml), hence the vertical shift (D) = (2534 + 2030) / 2 = 2282 ml
The frequency B = 2π / 4 s = π/2
Therefore:
[tex]V(t)=252sin(\frac{\pi}{2}t )+2282[/tex]
Since Asha is a healthy woman in her forties, she does not have Niemann-Pick disease type A. For this question, assume that she is a healthy person who is a carrier. If Asha is a carrier of the allele for Niemann-Pick disease type A, what is her genotype?
Answer:
Aa is her genotype
Explanation:
This is because since she is just the carrier and she is healthy, her genotype will be heterozygous with the allele for Nieman pick up disease recessive because it's effect is been masked by the allele that is not Nieman pick up disease because it is dorminant. Therefore , the allele for healthiness is dorminant over allele for Nieman disease.
Power plants (especially fossil-fuel based coal and gas-fired units) are frequently mentioned sources of environmental problems. List three specific types of outputs to the environment resulting from these fossil plants. Which other parts of the life cycle of producing electricity from fossil plants also contribute to these problems
Answer:
Effects of Conventional (fossil fuels & gas fired) power plants : Air pollution, Water Pollution, Land Degradation
Explanation:
Fossil power plants, that use fossil fuels for electricity generation, have various ill environmental effects
Air Pollution - Coal Power Plants emit many polluting gases into environment. Like Sulphur Dioxide, Carbon Monoxide etc, Nitrogen Oxides. The last gas is majorly emitted during process of nitrogen combustion.
Water Pollution - Coal washing process before placing it in boiler (for heat generated electricity) , circulates the same unclean water into water bodies & groundwater.
Land Degradation - The after process disposal mechanism implies untreated water & air pollutants released indiscriminately. This adversely effects the land quality & the wildlife.
The model shows the cycling of carbon
Carbon dioxide
in air
Green plants
absorb CO2
Animals
respiration
Decomposers
respiration
Food for
animals
Death
Waste materials
Which part of the model shows carbon moving from the biosphere to the
atmosphere?
Answer:
A. Decomposers breaking down the material
Explanation:
Decomposition is the process in which decomposers such as bacteria break down the organic material in the atmosphere.
In the given image, decomposers breaking down the material shows carbon moving from the biosphere to the atmosphere because decomposers break down the dead organisms and in the process the carbon in the bodies of dead organism get back in to the atmosphere.
Hence, the correct answer is "A. Decomposers breaking down the material".
If the word "diversity" means "variety" and the prefix "bio-" means "life", what do you think the word "biodiversity" in an ecosystem means?
Answer:it means a verity of life
Explanation:because like you said diversity means verity and bio means life
Which of the following is a true description of the green alga Spirogyra sp.?
Select one:
a. The alga has a branched, multicellular, filamentous habit.
b. The chloroplast with its pyrenoids is arranged spirally throughout each filament.
c. Most of the interior of each cell is occupied by cytoplasm.
d. Gametic meiosis takes place via the process of conjugation between filaments.
Which of the following rows in the table best compares the function of a plant's xylem and phloem? I Need help ASAP!
Row 1
Xylem
- transports glucose absorbed by the roots to the rest of the plant
- alive at maturity
Phloem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Row 2
Xylem
- transports glucose produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Phloem
- transports water and nutrients absorbed by the roots to the rest of the plant
- alive at maturity
Row 3
Xylem
- transports water and nutrients absorbed by the roots to the rest of the plant
- dead at maturity
Phloem
- transports glucose made during photosynthesis in the leaves to the rest of the plant
- alive at maturity
Row 4
Xylem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- alive at maturity
Phloem
- transports glucose absorbed by the roots to the rest of the plant
- dead at maturity
Answer:
row 3
Explanation:
xylem transport water and nutrient absorbed by the root to other part of the plant
Answer:
Row 3
Explanation:
I took the exam
What are 3 astronomical objects that radio waves can detect.
Answer: Radio telescopes look toward the heavens to view planets, comets, giant clouds of gas and dust, stars, and galaxies
Explanation: By studying the radio waves originating from these sources, astronomers can learn about their composition, structure, and motion.
Mark me brainliest please please please please please please please please!!!!!!!!!!!!
NEED HELP ASAPP PLZZ
WIL GIVE BRAINLIEST
Explanation:
phenotypic ratio = 9: 3: 2: 1: 1
plz mark my answer as brainlist plzzzz. hope this will be helpful to you .
please help me on the first one (highlighted)
Answer:
Change in water source
Explanation:
officials from Flint, Michigan switched the city's water supply to the Flint River as a cost-cutting measure for the struggling city, and they unwittingly introduced lead-poisoned water into homes.
5.Write observation and conclusion of each of the following activities.
Answer:
Water puts pressure depends on their amount.
Explanation:
In the bottle, there is large quantity of water that put high pressure on the bag present at the side of the bottle that leads to swelling of the bag whereas, if the bag is present at the bottom not at the side and water is also present in large amount so more swelling of bag occurs so we can conclude that more water puts more pressure and less water puts less pressure.
Match the description with the asexual reproduction of plants.
Group of answer choices
underground stems that store nutrients and can grow into new plants
[ Choose ]
plantlets
runners
tubers
potato
[ Choose ]
plantlets
runners
tubers
tiny plants that grow on the edges of a plant's leaves
[ Choose ]
plantlets
runners
tubers
above ground stems that can develop new plants
[ Choose ]
plantlets
runners
tubers
strawberries
[ Choose ]
plantlets
runners
tubers
Answer:
plant lets I think abcdefg
Explanation:
Match the description with the asexual reproduction of plants.
Group of answer choices
underground stems that store nutrients and can grow into new plants
[ Choose ]
plantlets
runners
tubers
potato
[ Choose ]
plantlets
runners
tubers
tiny plants that grow on the edges of a plant's leaves
[ Choose ]
plantlets
runners
tubers
above ground stems that can develop new plants
[ Choose ]
plantlets
runners
tubers
strawberries
[ Choose ]
plantlets
runners
tubers
Answer:
A. Tuber is refer to as specialized storage stem of certain seed plants. Tubers are usually short and thickened and typically grow below the soil. So the patato is tuber.
Define aseˣual reproduction?Aseˣual reproduction is a type of reproduction that does not requires the union of seˣ cells or gametes.
B. a small or young plant is known as plantlet.
C. Plant runners are stem-like growths extending from a mother plant's growing point, such as a strawberry's crown.
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how are most antibiotics used in the US? A. To treat human disease B. To keep food-producing farm animals healthy C. To treat domestic pets D. To cure diseases in food-producing animals
Answer:
your answer wil be a.
Explanation:
18. Marlon took the microscope and observed a sliced plant leat. He switched it into 100% magnification and saw
a green pigment. In which part of the plant cellis it found?
a nucleus b. mitochondrion G chloroplast d. lysosome
Answer:
chloroplast
Explanation:
its is the green pigment in the plant. it allows photosynthesis to take place
can someone give me good evidence please i will give you brainliest
Answer:
you can get evidence by observing how people have different traits from their parents, like one sibling can look different than they other sibling, they can get traits from older generations, like you can have a family that has black hair or dark brown and one of their kids got light brown hair because that was passed down or skipped through a generation.
Explanation:
What will most likely happen if all the chloroplasts are removed from a plant cell?
18) The enzyme poly-A polymerase is responsible for adding 3' poly-A tails to eukaryotic mRNAs. This enzyme... A. cuts the mRNA after recognition of the cleavage/polyadenylation signal by CstF and CPSF proteins. B. polymerizes the tail using an RNA template that is part of the enzyme. C. isthesameaspolII D. normally adds about 2000 A nucleotides to the mRNA. E. uses A TP as a substrate.
Answer:
The correct answer is - option e. uses ATP as a substrate.
Explanation:
Poly-A Polymerase is an enzyme of the family of the DNA polymerase beta (polβ) family which catalyzes the reaction of the addition of AMP from ATP to the DNA polymerase beta (polβ) family.
ATP+RNA-3'OH--------->Pyrophosphate + RNApA-3'OH.
In this reaction, after the mRNA is cleaved, the Poly-A Polymerase template-independently adds about 200 A nucleotides (from ATP) one by one.
Column A
Column B
1.
a. biotic
A community of interacting biotic and abiotic
factors.
Living factors in an ecosystem.
2. d
b. herbivores
3.
a
Non-living factors in an ecosystem
c. ecosystem
e
d. abiotic
4 5.
Organisms that can obtain energy directly from
the sun.
Organisms that obtain energy by feeding on
other organisms
Primary consumers
e decomposer
6.
f producers
7. h
Animals that feed on the flesh of other animals.
g consumers
8.
h. carniyores
k
Consumers that feed on both plants and animal
flesh
Literally meaning self-feeding
9.
i heterotroph
b
j. autotroph
10.
Literally meaning feeding on others
k.
omnivores
11.
f
Organisms (bacteria, insects, worms, and fungi)
that break down animal waste and dead
organ
Answer:
1. A community of interacting biotic and abiotic factors. - C. ecosystem
2. Living factors in an ecosystem. - A. biotic
3. Non-living factors in an ecosystem. - D. abiotic
4. Organisms that can obtain energy directly from the sun. - J. autotroph
5. Organisms that obtain energy by feeding on other organisms - I. heterotroph
6. Primary consumers . - B. herbivores
7. Animals that feed on the flesh of other animals. - H. carnivores
8. Consumers that feed on both plants and animal flesh . - K. omnivores
9. Literally meaning self-feeding . - F. producers
10. Literally meaning feeding on others . - G. consumers
11. Organisms (bacteria, insects, worms, and fungi) that break down animal waste and dead organisms. - E. decomposer
Explanation: