Answer:
Bro you got the same class as me or some I got the same question a few weeks ago anyway the answer is B and C its pretty easy if you pay attention in class
Explanation:
Answer:
its b and c i took this test a week ago also is this flvs
Explanation:
In which type of arrhythmia do the atria contract very quickly and "out of sync" with
the rest of the heart because of an error in the heart's electrical system?
A. atrial fibrillation
B. atrial flutter
C. ventricular tachycardia
D. Obradyarrhythmia
Answer:
atrial fibrillation
Explanation:
Atrial fibrillation is an irregular and often rapid heart rate that occurs when the two upper chambers of your heart experience chaotic electrical signals. The result is a fast and irregular heart rhythm. The heart rate in atrial fibrillation may range from 100 to 175 beats a minute
Answer:
A. atrial fibrillation
Explanation:
Which step happens first in DNA replication?
Answer:
Initiation
Explanation:
The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands. As the helicase moves along the DNA molecule, it continues breaking these hydrogen bonds and separating the two polynucleotide chains (Figure 1).
If an area gets an average of 125 mm of rain a year and has an average temperature of 20 degrees C, the biome is most likely
Answer:
wet
Explanation:
i will mark brainliest) Which of the following terms best describes when homologous pairs exchange segments of DNA during prophase I?
Diploid
Haploid
Crossing over
Homologous chromosome
Which of these phenotypes is affected by both environmental and genetic factors?
A: Tongue rolling
B: Blood group
C: Weight
D: Gender
Answer:
C. weight
Explanation:
Based on the weight of the phenotypes can affect the environment and genetic
The human X and Y chromosomes
A. are of approximately equal size and number of genes.
B. include only genes that govern sex determination.
C. are both present in every somatic cell of males and females alike.
D. are almost entirely homologous, despite their different names.
E. include genes that determine an individual's sex.
1. The colour of a tomato can be represented by RR, Rr or rr. Why do we use capital
letters for some symbols and lower case letters for others? Why are there two
symbols for one trait (characteristic)?
Answer:
The capital letter is used to show a dominant trait, while a lowercase is used to represent a recessive trait.
Explanation:
If you are to take a Mother and a Father as example, and they have 3 children, the father's brown eyes as example we can show the children with capital and lower case depending on their looks. If the Father had brown eyes and 2 of his children out of 3 have brown eyes, we can represent that as a dominant trait, so it would be R. Then, if we take the father's hair color, brown, and the mothers hair color, blonde, we can say 2 of 3 children have brown hair, so 1 of 3 children have brown hair. So we now know that brown hair is a recessive trait. 2 of 3 children have blonde hair so the child with brown eyes and blonde hair could be represented like "Rr". Hope that helps, this is just my little explanation of this!
A tumor is: unregulated cell division in the body.
regulated cell division in the body.
a lineage of genetically identical individuals or cells.
a mass of cells that does not serve a function in the body.
Answer:
unregulated cell division in the body.
Explanation:
7. What is the mass and weight of a 10-kg object on earth?
Answer:
Weight= 98 newtons Mass=10kg
Explanation:
Answer:
Weight varies with location depending upon the acceleration due to gravity eg. for a mass m = 10kg on Earth it`s weight is W = mg = 10 x 10 = 100N.
Explanation:
How do the internal structures of the tree function together to help a tree take in and lock up carbon atoms from carbon dioxide in the wood of the tree as it grows?
Answer:
CO2 is a basic element for plants because it is a key part of their nutrition. They take carbon dioxide from the atmosphere and, after the process of photosynthesis, break down the gaseous molecule to supply themselves with energy, release oxygen and incorporate carbon atoms into their tissues. The trees of the planet act as a sink, sequestering CO2 from the air and fixing carbon for hundreds of years in the form of wood. Carbon will be released after the tree dies, when it begins to decompose.The inner layer called phloem or bast , is made up of living cells and its function is to conduct the sugar-filled sap from the leaves to the rest of the tree.
Explanation:
Trees, through photosynthesis, retain CO2 that they keep in their "organism" throughout their life cycle until they decompose. In this way they convert carbon atoms in the atmosphere into glucose (what they use to grow), and exhale oxygen that they release into the environment. By photosynthesis, plants retain CO2, becoming its dry mass of 50% carbon. The CO2 that is produced inside the mitochondria during respiration ends up being released into the atmosphere after crossing multiple barriers. The CO2 emitted by a stem xylem parenchyma cell must first cross the membranes and cell wall; and once in the intercellular spaces of the trunk, it does not diffuse rapidly outwards, but is slowed down by the conductive elements of the xylem and by the cambium, the phloem and, finally, the outer cortex. In the xylem, the arrangement and structure of the conductive elements, as well as the structure of the membranes of the pits that connect the conductive elements and these radially with the parenchyma influence the permeability to the passage of CO2.
It’s already over do so pls Help ASAP I WILL GIVE BRAINLIST If u answer all of them I have provided a diagram above for the questions... yes they have to be real answers no jokes pls...
7. Using the DNA sequences of the human, chimp, and baboon above, which species are
more closely related? |
8. How did you determine your answer above?
9. What is the method of comparing DNA sequences of species called?
How do the properties of water help it to shape the Earth ?
Answer:
Water moving across the earth in streams and rivers pushes along soil and breaks down pieces of rock in a process called erosion. The moving water carries away rock and soil from some areas and deposits them in other areas, creating new landforms or changing the course of a stream or river.
Explanation:
What are the different parts of a bacteriophage? Where is the DNA stored in this virus?
Answer:
What are the differents parts of a bacteriophage?
The tailed phages have three major components: a capsid where the genome is packed, a tail that serves as a pipe during infection to secure transfer of genome into host cell and a special adhesive system (adsorption apparatus) at the very end of the tail that will recognise the host cell and penetrate its wall.
Where is the DNA stored in this virus?
Where is DNA stored in viruses?
The genome of most DNA-containing viruses that infect eukaryotic cells is transported (with some associated proteins) into the cell nucleus, where the cellular DNA is, of course, also found.
Explanation:
Hope it helps you!
Potato crops are grown for their carbohydrate content.
Describe how you could safely test the two species of potato to compare their carbohydrate content.
test for starch
test for reducing sugars
8 mark question - IGCSE
Answer:
I hope this helps a little bit.
What do mitochondrial and thylakoid membranes have in common?
Answer:
Both membranes contain ATP Synthase Proteins.
Choose the best statement about the expression “mutation is random, natural selection is not.”
A. Mutations are CAUSED by changed in the environment
B. Natural selection CAN favor some mutations and not others
C. Selection CAN’T change depending on the environment
D. Mutations for advantageous traits are less likely to be passed on the next generation
Answer:
B
Explanation:
Some mutations can be harmful or helpful depending on the environment.
Based on the information presented in the passage, which of the following conclusions can the reader make?
A
The weather today will be like the weather tomorrow.
B
Knowing the climate makes it easy to predict the weather.
C
If it is cold today, you almost certainly live in a cold climate.
D
Weather can change quickly, but climate changes slowly.
E
The climate in the desert is highly variable.
Weather is all around us. It is what happens from minute to minute. Rain and snow are examples of weather. Climate, on the other hand, is quite different. Climate is the pattern of weather experienced over a long period of time in a certain area. A region that has high temperatures over many years has hot climate. Knowing the weather can help you choose what to wear today. Knowing the climate can help a farmer choose what crops to plant.
Answer:
B . Knowing the climate makes it easy to predict the weather.
C . If it is cold today, you almost certainly live in a cold climate.
D . Weather can change quickly, but climate changes slowly.
Explanation:
If we know the climate of a particular region we can predict the weather of the next day or week of that region because climate is remain the same of a specific region. If the weather is cold it means that you live in a cold climate, similarly, if the weather is warm it means the climate of that region is warm and hot. Weather can change and has high variations whereas climate is the average atmospheric conditions of a region for a long period of time.
I really need help on question two. ANY HELP WOULD BE KINDLY ACCEPTED!!!
Answer:
ok so all u need to do is explain how the cheerio gives the nutrients/energy like whats in it that gives u the energy thats all bb
Explanation:
Atmospheric carbon dioxide dissolves into ocen surface waters
Answer:
Carbon dioxide, which is naturally in the atmosphere, dissolves into seawater. Water and carbon dioxide combine to form carbonic acid (H2CO3), a weak acid that breaks (or “dissociates”) into hydrogen ions (H+) and bicarbonate ions (HCO3-).
Explanation:
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Answer: D. Mass is a measure of the gravitational force exerted on a object... I think
Explanation:
Answer:
A
Explanation:
A. Completely true
B.Obviously not true
C.Yes but mass is not weight it is matter, making this incorrect
D. This is true but mass isnt a measure of gravitational force.
In conclusion A is the statement that is correct.
Enter the appropriate word(s) to complete the statement.
Word Bank: four, sexual, different
If offspring inherit different DNA from their parents, each offspring will have ____
traits.
Sexual reproduction relies on meiosis instead of mitosis because only meiosis produces ____ sex cells.
Two sex cells join to produce a new individual in _______
reproduction
Answer:
If offspring inherit different DNA from their parents, each offspring will have different traits.
Sexual reproduction relies on meiosis instead of mitosis because only meiosis produces four sex cells.
Two sex cells join to produce a new individual in sexual reproduction.
PLEASE MARK BRAINLIEST, if you think this is best! THX! :)
YO PLZ HELP ME AGAIN!!!!
What type of signals does the nervous system send? What carries these signals?
What are the main organs of the nervous system?
Nervous system messages travel through neurons as electrical signals. When these signals reach the end of a neuron, they stimulate the release of chemicals called neurotransmitters. Neurotransmitters travel across synapses, spaces between neurons or between neurons and other body tissues and cells.
CLAP YOUR HANDS. Have a nice day lol
Answer:
.......................
have a good day :)
Explanation:
Fungi form lichens by living in a close
relationship with an algae. The fungus provides a
protective home for the algae, and gathers mineral
nutrients from rainwater and from dissolving the
rock underneath. The algae gathers energy from
the sun using photosynthesis. Both organisms
share their nutrients with each other.
A. Commensalism
B. Parasitism
C. Mutualism
D. Competition
Answer: Commensalism
Explanation: Well you can already eliminate parasitism because that is when an organism leeches off another. Mutualism is when one organism needs to depend on another compared to A where both are benefited. Then you can eliminate d because competition is when two organism compete with each other for survival not benefiting them both.
Questions about natural selection
Answer:
c is just wrong because that is not how evolution works evolution is a small change in the DNA that takes a long time through many many generations not just as you or an organism get older and smarter you are not evolving
What does natural selection act on?
The potato which is used as vegetable is a stem
Answer:
yes potato is a stem
Explanation:
Potatoes, grown in cooler climates or seasons around the world, are often thought of as roots because they usually grow in the ground. But technically they are starchy, enlarged modified stems
Answer:
I have just learnt something new I guess!
Explanation:
2. Natural selection is an example of a mechanism of
evolution. Does this mechanism produce a change in
individuals or populations? Explain!
Answer:
Populations
Explanation:
It cannot change individuals. This is because it happens over many generations. E.g. Peppered moths camouflage with bark. Black moths do not, so they are easily seen by predators. The black moths are eaten because they do not have a desirable trait for survival. The black moths cannot then pass on the trait for black wings to their offspring. However, the peppered moths can pass on their trait for peppered wings to their offspring. Overtime, the population of black moths will decrease and most of the population will have peppered wings. The trait for peppered moths will be present even after many generations and black moths will be rare.
HELP DUE IN 10 MINS!
All of the following are required for photosynthesis except:
a. Light
b. Chloroplasts
c. Oxygen
Answer:
chloroplast
Explanation:
light and oxygen are a crucial thing for plants
Answer:
c
Explanation:
:) have a nice day
Imagine customers moving into and out of a coffee shop. Which situation
resembles how a reaction in dynamic equilibrium acts?
A. There are the same number of people inside the coffee shop as
outside it.
B. People enter the coffee shop at the same rate as others leave.
C. No people are moving either into or out of the coffee shop.
D. Some people sit down and drink their coffee slowly, while others
drink theirs quickly while standing up.
No
Answer:
B. People enter the coffee shop at the same rate as others leave.
Explanation:
did the test !!
The answer is B. People enter the coffee shop at the same rate as others leave.
In a reaction in dynamic equilibrium, the forward and reverse reactions occur at the same rate, meaning that the concentrations of reactants and products remain constant over time.
Similarly, in the coffee shop scenario, if people are entering and leaving at the same rate, the number of customers inside the shop will remain constant, just like the concentrations of reactants and products in equilibrium.
Option A, C, D are not a good analogy for dynamic equilibrium.
Learn more about equilibrium at:
https://brainly.com/question/30807709
#SPJ7
What is the structure in the diagram?
Answer: A structure diagram is a conceptual modeling tool used to document the different structures that make up a system such as a database or an application.
Explanation: