where do convection currents occur
need help fast
Answer:
Convection currents occur in the Earth's mantle.
Answer:
in the mantle of the earth
Explanation:
Which of the following is not a benefit of green revolution?
A) new crop varieties
B) increased crop yields
C) cost effective
D) new crops may require larger amonts of water than the previous ones.
Answer:
D new crops may require larger amonts of water than the previous ones.
Explanation:
because i got it right on my test
A kid on a trampoline has 1,000 J of potential energy when they are at the top of a jump. How much kinetic energy will the kid have when they come halfway down?
A. 100 J
B. 250 J
C. 500 J
D. 1000 J
Answer:
C. 500 J
Explanation:
Given;
potential energy of the kids at the top of the trampoline, P.E = 1,000 J
⇒At the top of the trampoline, the kids have only potential energy.
⇒On half way down, the kids have both kinetic energy and potential energy.
⇒At the bottom of the trampoline, the kids have only kinetic energy.
Based on the statements above, the kinetic energy of the kids half way down is calculate as;
P.E + K.E = 1000 J
Base on law of conservation of energy, P.E = K.E
2 K.E = 1000 J
K.E = ¹/₂ x 1000 J
K.E = 500 J.
A man with blood group B marries with a woman with blood group AB and the daughter has blood group AB. Is this information enough to tell you which of the traits – blood group B or AB is dominant? Why or why not?
Answer:
YES. This information is enough to assume that neither of the blood groups dominates over the other one.
Explanation:
Available data:
A man with blood group B ----> Genotype IBIB or IBiA woman with blood group AB ---> Genotype IAIBTheir daughter has blood group AB --> Genotype IAIBThe fact that the daughter´s genotype is IAIB tells us that she got the IA allele from the mother, who is IAIB, and the IB allele from his father, who is IB-.
If blood type B was dominant over A or AB, then the daughter should have Blood type B. If blood type A was dominant over B or AB, then the daughter should have Blood type A. Blood type AB tells us that both types are being expressed, A and B.The fact that the daughter inherited one type of allele from each parent, but she is expressing the blood type AB, suggests that neither of the alleles dominates the other one. This is an example of co-dominance, where the heterozygote phenotype is an additive expression of both of the parents' genes.
This is enough information to assume that neither of the blood groups dominates over the other one.
What biotic and abiotic factors influence the flow of matter and energy in different biomes
Answer:
Temperature, water and nutrients.
Explanation:
Biotic factor refer to the living component of the ecosystem. Plants and animals.
Abiotic factor refer to the nonliving component of the ecosystem such as light, temperature e.t.c.
Biomes refers to group of terrestrial ecosystems on the earth.
Therefore, the following factors affect biomes
Water: water can affect biomes in the sense that too much of it can lead to flood, thereby leading to loss of plants and animals. Decrease of it can lead to famine which also can lead to loss of biomes.
Temperature: The best temperature should be optimum temperature. An increase or decrease in temperature have negative effect on biomes which can lead to low vegetation, dehydration, inactiveness of animals.
Nutrients: nutrients availability can lead to increase in plants growth. Vegetation will increase if there is adequate nutrients supply but if there is low nutrients there will be reduced growth.
Therefore, temperature, nutrients and water is important for biomes.
You can check this link for further details.
https://brainly.in/question/6628094.
multiple choice - biology
Answer:
dna replication
Explanation:
Answer:
D. DNA replication
Explanation:
As you can see the Helicase is splitting the DNA into two parts with the DNA polymerase duplicating the missing half or replicating the DNA. Which is why D is the answer.
Hope this helps!
how do cells compare in size to things like rice and salt ?
help me plzzz. I’m kinda clueless lol.
the answer is b.
hope this helps lol
Answer:
Deposited
Explanation:
yuh
HEEEEEEEEEEEEEELLLLLLLLLLPPPPPPPPPPP!!! SOS!!!
Answer:
I think c
Explanation:
I hope your help
A hurricane passes through the Gulf of Mexico and destroys many of the coastal regions of Northwest Florida,
Which of the following is a likely impact of this catastrophic event on biodiversity?
Species brought in by the storm surge will displace species native to the coastal wetlands.
Species reliant on coastal wetlands for survival may experience a decline in population due to loss of
habitat.
Coastal wetlands will grow exponentially with the input of nutrients from storm upwelling and biodiversity
will increase in these areas.
Excessive salt from the storm surge will flood coastal wetlands and raise salinity to intolerant levels for the
local species, causing a decrease in biodiversity
Answer:
Species reliant on coastal wetlands for survival may experience a decline in population due to loss of
habitat.
Explanation:quizlet said so
Why would scientists use a spectrometer in space?
A. To maintain a constant air supply on board a space shuttle
B. To convert light from stars into usable energy for humans
C. To detect the birth and death of distant stars and galaxies
D. To study the chemical composition of the surface of a planet
Answer:
B. A spectrometer measures the wavelength and frequency of light, and allows us to identify and analyse the atoms in a sample we place within it.
Explanation:
Answer:
D. To study the chemical composition of the surface of a planet
Explanation:
took the test
Which layer of rock is the oldest?
1. Layer A
2. Layer D
3. They are all the same age
4. There is not enough information to answer this question
Air quality is important to maintain for the health of all animals and plants. True or false
Answer:
true
Explanation:
seems self explanatory
Which of the foldwing is the most important in determining how quickly materials can move into and out of
a cell? (A) the volume of the cell (B) the mass of the cell (C) the surface area of the cell (D) the location
of the cell in relation to its environment.
Answer:
b the mass of the cell
Explanation:
proteins regulate cell process, transport substances into or out of cells, and help
a. regulate blood pressure
b. form bones and muscles
c. control body temperature
d. regulate pH in various parts of the body
Answer:
B
Explanation:
I think it's B since proteins don't control blood pressure or temperature. Also I'm pretty sure they don't regulate the body's PH
all living things are classified into kingdoms based on specific characteristics. which of the following are only characteristics to the bacteria domain
Answer:
Eukaryotic cell, cell wall made of cellulose present
Explanation:
took the test
The main characteristics of the bacteria domain is that they lack a well-defined nucleus and are known as prokaryotes.
What is the main characteristic of the bacteria domain?All living things are classified into kingdoms based on specific characteristics found in organisms in that kingdom.
For the bacteria kingdom, the main characteristic present is that they lack a well defined nucleus as well as nuclear membrane.
Organisms without a well-defined nucleus are known as prokaryoytes.
Thus, the main characteristics of the bacteria domain is that they lack a well-defined nucleus and are known as prokaryotes.
Learn more about bacteria and prokaryotes at; https://brainly.com/question/1288013
what correctly describes the relationship of genes , dna , proteins and traits
Identify the factors that made early Earth a hot planet.
Answer:
meteorite striking the dinosaures
There is ice in an ice cube tray. At what temperature did the water freeze? A.0°F c.32°C b. 0°C
Answer:
the ice froze at 0 celcius!
Explanation:
Explain how different forms of a gene are distributed to
offspring.
Answer: During gamete formation, the alleles for each gene segregate from each other, so that each gamete carries only one allele for each gene. an individual gene may code for a specific physical trait, that gene can exist in different forms, or alleles.
What are genes?
Genes are an basic physical and functional unit of heredity.Genes are what make our DNA.
Hope this helps
-Tobie the dog
Which of the following is not considered an environmental impact of geothermal energy? A) gas emissions B) disturbance of the land at drilling sites C) requires large-scale transportation of raw materials to refining sites D) hot waters are corrosive
Answer:
b
hope this helps
Explanation:
Answer:
the answer is C. disturbance of the land at drilling sites
Explanation:
are building blocks and molecules the same
and are there building blocks to fiber if so what is it
Answer:
pay attention in class
Explanation:
what is the reproductive organ of ferns
A. Cone
B. Stem
C. Fronds
D. Flowers
Answer:
Stems are the reproduction organ of ferns I think.
Can you tell me about cellular respiration and photosynthesis? I do not understand.
Answer:
Photosynthesis is the process in which plants make their on food; Cellular respiration is the process through which cells convert sugars into energy.
Explanation:
Answer:
the job of photosynthesis is to turn energy from the sun into chemical energy that can be used for food. Cellular respiration is the cycle that occurs in the mitochondria of organisms to break down sugar in the presence of oxygen to release energy
Explanation:
PLEASE HELP :)
Based on the data in the table in part C, what effect does decreasing the temperature from 4°C to 0°C have on the sample’s density?
Answer:
As the temperature of the water decreases from 4°C to 0°C, the density decreases slightly.
Explanation:
platos answer.
What are the three metabolic processes that make up cellular respiration?
Answer: It is glycolysis, the tricarboxylic acid cycle, and oxidative phosphorylation
Explanation:
Duplicated chromosomes are attached to each other by
Select one:
a. tetrads
O b. clones
c. centromeres
d. chromatids
Which activity contributes to an increase in the concentration of greenhouse
gases in the atmosphere?
Answer:
D. Deforestation
Explanation:
Loss of forests contributes as much as 30 percent of global greenhouse-gas emissions each year--rivaling emissions from the global transportation sector.Hopes this helps. :)
Answer:
D
Explanation:
Just took the quiz
Name four RNA viruses that jumped from animals to humans.
Explanation:
SARS, Ebola, swine flu, rabies
If you could help me it would make my day a 100x better.
Answer:
The way it's worded makes no sense, and I can't send actual links but hope this can help so you can look it up your self.(Link is on top left):
Explanation:
Answer:
12 19 15 17 14 18 16 13
Explanation:
A model answer for translation is always this:
mRNA leaves the nucleus via the nuclear pores and travels to a ribosome (in the cytoplasm or on the rough endoplasmic reticulum)
The ribosome attaches to the start codon on the mRNA.
A tRNA molecule with an anticodon complementary to the start codon on the mRNA carries a specific amino acid to the ribosome and lines up against the mRNA codon.
This is repeated, and each tRNA molecule transports a unique amino acid to the ribosome until the stop codon on the mRNA strand is reached.
As the ribosome moves along the mRNA strand, peptide bonds form between the adjacent amino acids, forming a polypeptide chain.
This chain detaches from the ribosome and will undergo folding to become a specific type of protein.
Hope this helps you to understand the process a little better! :)