Answer: The 4 layers that make up the earth is the crust, mantle, inner core and outer core.
Explanation: The crust, which is a main layer is where we live on. Without the crust, we'll be standing on the mantle! The temperate of the crust is 392 Fahrenheit! The crust is 30 km thick. The mantle is the second layer of the earth. It's below the crust and it's hot, dense and semi-solid. It's mostly made of iron, magnesium and silicon. It can reach as hot as 1000 Celsius (1832 Fahrenheit)! It's about 2900 km thick! Anyone who standing on it will melt! The inner core is the 3rd layer. It's below the mantle and made out of liquid iron (molten iron) and nickel. It is about 5,200 Celsius (9392 Fahrenheit). Now that is hot! Hotter than a fire even a heater! The last layer is the outer core. It's made out of liquid iron and nickel, like the inner core. The outer core can be as hot as 5500 Celsius (8132 to 9932 Fahrenheit!)
Why do you think the strand of DNA
coming in from the left side of the screen
is becoming two thinner strands?
Answer:
they might be spliting(reproduction) to make offspring
Explanation:
DNA replication
What does it mean when DNA splits?
Two strands of DNA come together to form a twisted, ladder-like structure. Hydrogen bonds between the bases of each strand create the double-stranded structure. The cell must split the two strands to allow the replication machinery to access each strand and copy it.
What causes the DNA to split apart during replication?
In order to unwind DNA, these interactions between base pairs must be broken. This is performed by an enzyme known as DNA helicase. DNA helicase disrupts the hydrogen bonding between base pairs to separate the strands into a Y shape known as the replication fork.
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Hypoxic environments have very little oxygen in them. In the most extreme cases,
they may have no oxygen at all. What process must cells in these environments use to
get the energy needed for life processes out of the food molecules they take in?
A photosynthesis C. anaerobic respiration
B. aerobic respiration D. Osmosis
Answer:
The process cells must use in hypoxic environments to obtain energy from the food molecules they take in is anaerobic respiration (option C).
Explanation:
Anaerobic respiration is the process of energy production that cells carry out in the absence of oxygen. This type of reaction requires an electron acceptor other than oxygen.
Some microorganisms, such as bacteria, can carry out their metabolism in environments with little or no oxygen. In these organisms, the energy-producing pathways are anaerobic respiration and fermentation reactions.
The other options are not correct because:
A. Photosynthesis: occurs in plants, and is based on the conversion of solar energy into chemical energy.
B. Aerobic respiration: requires the presence of oxygen, the final electron acceptor of the electron transport chain.
D. Osmosis: is a transmembrane transport mechanism.
PLEASE HELP WILL MARK BRAINLIEST AND 5 STARS, THANK YOU!!!
Answer:
I cant really see it the words are blurry
HELPPPPP!!!! ASAPPPPPPPPP!!! PLEASEEEE!!!!!
Which of the following are the animal phyla that contain worms?
Porifera, Platyhelminthes, Cnidaria
Platyhelminthes, Nematoda, and Annelida
Annelida, Cnidaria, and Porifera
Cnidaria, Porifera, and Placozoa
Answer:
Platyhelminthes, Nematoda, and Annelida
Explanation:
Cnidarians are like jellyfish and sea urchins, Porifera are sponges and Placozoa are barely even animals. They look more amoeba than anything. While those three groups are wormlike in appearance or true worms.
Answer:
The second one is correct.
I already did this question, and I got this correct!
If an enzyme is found in the human stomach with a pH of 3. which of the
following would be the best way to destroy the function of the enzyme? *
put it into a pH of 4
put it into a temperature of 37 degrees celsius
put it into a pH of 10
heat it up to body temperature
Answer: uh i think its the last one
Explanation:
Farmer Tom only breeds the largest hogs, the fastest horses, and the cows 1 point
that give the most milk. This is an example of:*
Evolution; the animals have changed over time
Natural selection; traits that helped these organisms became more common over time
Stabilizing selection; a common trait was selected for,
Artificial selection; farmer Tom purposefully chose these traits and selectively bred
those organisms
Answer:
Artificial Selection
Explanation:
Answer:
artificial selection
Explanation:
I need help now
Which of the following has the greatest effect on climate?
A. photosynthesis
B. ozone depletion
C. greenhouse effect
D. smog
Answer:
Greenhouse effect
Explanation:
I had it on a quiz
A strand of mRNA has the bases adenine-cytosine-uracil
. Which amino acid
corresponds to these bases?
Messenger
Second base in codon
RNA Codons U
A
UUU
UCU UAU 1
Phel
UGU
UUC
Tyr
UCC
UAC) UGC
Cys
U
Ser
UUA UCA UAA Stop UGA Stop A
UUG
Leu
UCG UAG Stop UGG Trp
CUU CCU CAU
ICGU
His
CUC CCC CAC) CGC
Pro
CUA CCA
Arg
CAA) CGA
CUG
ICCG
Gin
CAG CGG
AUU ACU
AGU
AUC
Ser
lle ACC AAC)
Thr
!
AGC
AUA ACA
AGA
AUG StartMe ACG AAG
Arg
AGG
GUU GCU GAU GGU
GCC GAC)
Asp
GGC
G
Val
Ala
GUA GCA
Gly
GAA
Glu
GGA
GUG GCG GAG GGG
Leu
First base in codon
Poco Poco Pocopus
Third base in codon
AAU Asn
AAA] Lys
GUC
Thr that stands for threonine amino acid will corresponds to these bases.
Threonine is used in the biosynthesis of proteins. What is mRNA?messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes).
mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template.To know more about amino acids here
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Answer:pro
Explanation:
Which of the following are cortical lobes of the brain? (choose all that apply)
•frontal
•occipital
•perineal
•temporal
Answer:
frontal, occipital, and temporal
Explanation:
Answer:
•frontal
•occipital
•temporal
Explanation:
Which of the following correctly shows how energy flows in an ecosystem? *
producer - sun - decomposer – consumer
sun - producer - consumer – decomposer
decomposer - producer - consumer – sun
consumer- decomposer - sun – producer
Answer:
The correct answer is - sun - producer - the consumer – decomposer.
Explanation:
Sun is the ultimate source of the energy on the earth and is responsible for all the energy that is present or moves between various organisms in an ecosystem.
Sun provides energy in the form of light energy which is converted by the producers by photosynthesis into food and when consumers eat producers for food and energy 10 percent of energy passes from the producers to the consumers and the rest 90% lost during life processes. At the end of the chain, decomposers get energy from the dead matter of the consumers.
Give an example of how a population changed over time, or "evolved", by 3 natural selection. In your answer, use at LEAST three of the following words (you must use them correctly in order to get credit): variation, heritability, advantage, adaptation, traits, fitness, competition
Answer:
An example of a population changed over time, or "evolved", by three natural selection is described below in details.
Explanation:
Natural selection can produce microevolution, or a variation in allele recurrences over the extent, with fitness-enhancing alleles growing more prevalent in the population over generations. ... It applies to how common offspring bodies of an appropriate genotype or phenotype bequest in the succeeding generation, related to others in the association.
Answer:
it become closer to the background
:-) :-) :-) :-) :-) :-) :-) :-) :-)
Please help
Answer:
Explanation:
playing a game today just keeep it on gottttttttt
Cross a chinchilla with an albino. Complete the Punnett square to show the genotypes from this cross. Assume the chinchilla rabbits are female.
[ ] [ ]
[ ] [ ] [ ]
[ ] [ ] [ ]
Please show where they go in the boxes.
C=chinchilla, a=albino,
Answer:
C C
A AC AC
A AC AC
Answer:
C C
a Ca Ca
a Ca Ca
Explanation:
chinchilla is dominant over albino
How do scientists know dark energy exists?
Answer:
they just asked it
Explanation:
yep
Carmen, forgetting that she had her watch on, asked
her friend what time it was. When her friend pointed
out that she was wearing a watch, Carmen became
aware of the pressure of the watch band on her
wrist. This is an example of.
A) perceptual constancy
B) difference threshold
C)sensory adaptation
D)perceptual set
The answer is perceptual set because it means to focus on some sensory aspects and ignore others
What are monomours?
Which reptile is from the Middle East, has spots on it's entire body, is a gecko but it has eyelids, and is a very popular pet.
Answer:
leopard gecko
Explanation:
because it matches the description
Tokay gecko? i'm guessing
Which type of dating uses radioactive isotopes to give us the age of a
fossil?
Answer:
Radiometric dating
Explanation:
Answer:
radiometric dating
Explanation:
Some minerals in rocks and organic matter (e.g., wood, bones, and shells) can contain radioactive isotopes. The abundances of parent and daughter isotopes in a sample can be measured and used to determine their age. This method is known as radiometric dating.
Please rank the following ecological levels of organization in ascending order.(1 point)
individual → population → ecosystem→ community
community → ecosystem → population → individual
ecosystem → community → population → individual
individual → population→ community→ ecosystem
Answer:
1) a population of robins die
2) individual->population->community->ecosystem
3) fluctuating slightly over time
4) all members of a particular species in a specific area at a certain time
5) the caterpillers only eat milkweed plants
Explanation:
did the qc
These ecological levels of organization are ranked in ascending order as follows: D. individual → population→ community→ ecosystem.
What is an ecosystem?An ecosystem can be defined as a biological community that is typically made up of living organisms (biotic factors) such as individuals and the physical environment (abiotic factors) in which they interact.
Basically, the individual organisms in an ecosystem forms a population and this also gives rise to a community. This ultimately implies that, the ecological levels of organization are ranked in ascending order as follows:
Individual PopulationCommunityEcosystem.Read more on ecosystem here: brainly.com/question/15971107
Which of the following characteristics of Figure 1 best shows that the fragment is RNA and
not DNA?
Answer:
I cant see the figure but here are the differences in structure:
- RNA has 1 strand and DNA has 2 strands
-RNA has uracil instead of thymine
-RNA has a single nucleobase
-RNA has ribose (which has an OH instead of an H)
Explanation:
Which of these is a product from Photosynthesis?
Answer:
Carbon Dioxide
Explanation:
Oxygen is transformed to CO2 in the process of the photosynthesis of plants.
What happens to genetic material during cell division?
Answer:
The genetic material in cells is called DNA (deoxyribonucleic acid). Before cell divion, DNA is duplicated, or copied. ... Then, in an early stage of cell division, the chromatin is compacted into visible structures called chromosomes (KROH-muh-sohmz).
During the 1900s, the following genetic discoveries were made:
DNA is the molecule responsible for inheritance.
There are four bases in DNA, and they combine in a specific way. Adenine pairs with thymine, and guanine pairs with cytosine.
DNA is a double helix. The sugar molecules form the backbone, and the bases are connected by hydrogen bonds in the middle.
Enzymes that can cut and copy sections of DNA are identified and isolated.
Answer:
There are four bases in DNA, and they combine in a specific way. Adenine pairs with thymine, and guanine pairs with cytosine.
Explanation:
Explain how bacteria are both helpful and harmful to our bodies.
Requirements: A paragraph with enough details.
Prize: 10 Points and Brainliest for best (& original) answer!
Sample Response:
Bacteria are helpful because they produce oxygen, which our bodies need to breathe, and they help us to digest the food we eat. Bacteria are also helpful because they are used in medicine to help us overcome disease. Bacteria are harmful because they can cause tooth decay and illnesses that can be either common or quite serious.
This is a sample response, so it's 100% correct. Peace!
Hello! Here is your answer: Bacteria can be good, because they help produce oxygen, decompose waste, and help in medicine. They also help us digest food and live. Some other bacteria are harmful, because they can cause harmful diseases.
Hopefully, this helps!
Ask your question below!
Bacteriophages that induce bacterial cell lysis are called
Answer:
Bacteriophages that induce bacterial cell lysis are called virulent phages.
Explanation:
Bacteriophages correspond to viruses with an affinity for prokaryotic cells to be used as hosts for replication. They act both by invading the bacterial cell and by introducing their genetic material into it.
Some bacteriophages are capable of lysing or destroying the host bacterial cell after replication of their genetic material, receiving the name of virulent phages.
Bacteriophages that induce bacterial cell lysis are known as VIRULENT phages.
A bacteriophage is any virus capable of infecting and replicating within a prokaryotic cell (i.e., bacteria and archaea).Bacteriophages can be classified as lytic bacteriophages, which replicate through the lytic life cycle, and temperate bacteriophages, which replicate using both lysogenic and lytic cycles.For example, the phage lambda of Escherichia coli is an example of a temperate bacteriophage.In conclusion, bacteriophages that induce bacterial cell lysis are known as VIRULENT phages.
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Which order of amphibian contains frogs and toads?
Answer:Anura
Today amphibians are represented by frogs and toads (order Anura), newts and salamanders (order Caudata), and caecilians (order Gymnophiona).
Explanation:
Answer:
Anura; (took the test)
Explanation:
Frogs and toads have four legs with front legs that are longer than the back legs. They jump and hop as their main mode of transportation.
Why do you think that young, elderly, and poor people are most affected by urban heat islands?
Answer:
Trees, green roofs, and vegetation can help reduce urban heat island effects by shading building surfaces, deflecting radiation from the sun, and releasing moisture into the atmosphere
Answer:
they probably cant make enough money to be able to move away so they have to stay in the unhealthy climate
Explanation:
What would happen if you killed off one of the secondary consumers in your food web?
Answer:
Shut it down lol
Explanation:
lol
Answer: The rest of the chain would die.
Explanation: the food chain all depend on each other so if one chain falls the rest fall like a domino effect.
help me with this. I'm so confuse
Answer:
fellow acellus user! It's C.
Explanation:
basically on a p. square, the genotype would be heterozygous (T,t)- therefore the dominant allele would be expressed, that being (T).
Plants and animals have different cell structures. Which two organelles are only found in plant cells, but not in animal cells?
A. vacuoles and mitochondria
B. cell wall and mitochondria
C. chloroplasts and vacuoles
D. chloroplasts and cell wall
Answer:
D
Explanation:
Cells cells they are made of-
