Answer:
-O
Explanation:
negative o blood is the most common because about more than 50 percent of the earth has it and about 45.5 percent of people in hospitals all around the earth need transfusion blood and O or -O blood can save any type of blood
( plz mark me as brainliest, that would be most appreiciated )
Answer:
O negative
type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.
What metal is is usually used for wires in electric circuits
Answer:
Typically, Copper is used for wires in electric circuits.
what is RNA editing?exactly correct answer
Answer:
a process of evolution
Explanation:
it happens when animal or plant cells make changes of molecules within the RNA .Such may include insertion ,deletion or substitution
:)
What is the rate at which
producers make organic matter?
A. the rate of limiting nutrients
B. the rate of limiting factors
C. the rate of primary productivity
D. the rate of influxion
Answer:
b
Explanation:
trains between secretion and excretion
Answer:
excretion is the removal of something out of the body, while secretion is the movement of something from one area to another.
I need someone to help me
Answer:
The answer is D because it would first chop from below before getting up
According to the cell theory, which structure contains cells?
Answer:
All Living Organisms
Explanation:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.
Active transport requires __________ and ___________ in order to function correctly. A. energy, peripheral proteins B. energy, nucleic acids C. nucleic acids, membrane proteins D. energy, membrane proteins
Answer:
it is Option D
Explanation:
because energy and membrane proteins because active transport requires expenditure of energy and it is done with the help of transport proteins
Answer:
D
Explanation:
why is the african sleeling sickness called trypanasomes?
Answer:
because symptoms can include a disturbed sleep pattern
Explanation:
African trypanosomiasis is a parasitic disease transmitted by the tsetse fly. It gets its nickname 'sleeping sickness' because symptoms can include a disturbed sleep pattern.
Hope this helps
Trace what happens to a piece of bread as it enters the mouth to the large intestine. Be sure to mention each organ of the digestive system and what happens to the bread in each part. ( can you put it in high school level)
Answer:
Bread is a carbohydrate.
Digestion of carbohydrates begin from the mouth.
As the bread is eaten and it is been chewed, the salivary amylase act on it.
This is also called mastication which is the breaking down of large pieces of bread into smaller pieces.
The salivary amylase break the monomeric bond between the dissacharides and starches by breaking amylose and amylopectin into smaller glucose.
When it's get to the stomach there is no further breaking down in the stomach because amylase do not get to the stomach because of stomach acidity. The strong peristaltic contraction of the stomach make it to form uniform chyme.
When the chyme entered the small intestine, the pancrease releases the pancreatic juice which contain amylase that breakdown dextrins into shorter carbohydrates. Additional enzymes are released which break maltose into two glucose and this enzyme is called maltase.
Sucrase breakdown sucrose into glucose and galactose.
There are cells in the small intestines which contain membranes that have protein transport which get monosaccharides and other nutrients to be absorbed in the blood.
The liver receive glucose, fructose and galactose and store them which is later use by the cells.
Explanation:
Digestion is the breakdown of large complex food into smaller pieces which can be easily absorbed by the body.
The goal of carbohydrates digestion is to breakdown complex carbohydrates and dissacharides into monosaccharide that can be absorbed into the body.
Which statement accurately describes dark matter? It is the same as dark energy. It is well understood by scientists. It does not emit electromagnetic radiation. It can be observed by shifts in red and blue light.
Answer:
Dark matter does not emit electromagnetic radiation.
Explanation:
Dark matter comparative to dark energy, has various differences. You could say that dark energy is put into action on a larger scale than dark matter, which is also why dark energy makes up 74 percent of the universe. Thus, dark matter ≠ dark energy.
Scientists have a lot to learn about dark matter, so we can't claim that this subject has been well understood about scientists. In fact, it is one of the least understood parts of the universe!
_______________________________________________________
Now dark matter can be defined as particles that do not absorb, reflect, or emit light. Thus, it can't be observed by electromagnetic radiation - nor shifts in red and blue light. At the same time it does not emit electromagnetic radiation.
Answer:
dark matter does not emit electromagnetic radiation.
Explanation:
How does loss of biodiversity affect the biosphere?
O A New sources of medicines are gained.
B. Ecosystems become more resilient to change.
C. Natural food sources are lost.
D. Extinct species are replaced by new species.
Answer:B
Explanation:Ecosystem becomes more resilient to change when there is biodiversity loss and the changes affect human livelihood,income e.t.c.
Drag each label to the correct location on the diagram. Identify how a hormone molecule performs its function.
Answer:
Picture? to the question you are asking.
Explanation:
Answer:
I'll work my way from the bottom right to the left and up... ( Hope this doesn't get too confusing ^^:)
New Protein is "SECRETION OF PROTEIN BY THE CELL"
The purple things "SYNTHESIS OF PROTEIN MOLECULES BY mRNA AND tRNA"
The green squiggle "FORMATION OF mRNA IN THE NUCLEUS"
The DNA strand in the nucleus "INITIATION OF DNA REPLICATION BECAUSE OF A SIGNAL GIVEN BY THE HORMONE"
The inner receptor "BINDING OF THE HORMONE MOLECULE WITH ITS RECEPTOR OF THE CELL"
The top box for tissue and hormone "SECRETION OF HORMONE BY TISSUE"
Hope this helps ya!!! ^^~
diff betwn light year and astronomical unit in 2 points
Answer ;
A light year is the distance light travels in a year and an astronomical unit is the average distance between the earth and the sun.
hope this can help you
Which is a goal of the Human Genome Project?
a to identify the 3 billion genes that comprise the human genome
b to sequence the genome of every living individual
c to address the ethical consequences of genomic research
d to measure the length of human DNA
Answer:
C. to address the ethical consequences of genomic research
Explanation:
Option A comes very close to the correct answer but is not the main goal. Although the scientists were after decoding our genome and mapping our genes and such, ultimate goal was also to address the ethical consequences of genomic research because your genome is your blueprint (i.e. your genome makes you).
Which term describes one kind of movement of earth
Answer:
Rotation or Revolution
Explanation:
Answer:
Earth spins around it's axis is one type of movement.
Dr. DeRidder lesions, or damages, the ventromedial hypothalamus in one group of rats and the lateral hypothalamus in another group. What effect might he expect on the eating behavior of each group of rats? Both groups should begin overeating and become grossly obese. Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating. Both groups should stop eating and perhaps eventually starve to death. Rats with ventromedial lesions should stop eating; rats with lateral lesions should begin overeating.
Answer:
Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating
Explanation:
The feeling of hunger stimulates a desire to eat.
The lateral hypothalamus is responsible for making an organism hunger and craves for food upon receiving any stimulation or signal that causes hunger.
A damaged to the lateral hypothalamus would mean the organism would not be able to sense hunger and thus, there would be no desire to eat. Hence, the rats with lateral lesions should stop eating.
On the other hand, the ventromedial hypothalamus is responsible for quenching hunger and signaling to the organism that it is full, hence, it would stop eating. However, when the ventromedial hypothalamus is damaged, the organism would not be able to tell when to stop eating. Hence, rats with ventromedial lesions should begin overeating.
Which period is older than the Triassic period?
Explanation:
The Triassic is the oldest period in the Mesozoic Era. But the Permian Period came before.
Answer:
Cretaceous
Explanation:
In the time span of the Mesozoic era the Jurassic came after the Cretaceous.
Lydia is walking in the woods at night to observe owls. She hears a rustling behind a tree, which startles her and causes her body to go into a fight or flight response as the sympathetic nervous system is activated. What is likely to happen to her digestive system during this response? A. The enteric nervous system will slow down digestion to conserve energy. B. The enteric nervous system will speed up digestion to use energy. C. The peripheral nervous system will slow down digestion to conserve energy. D. The peripheral nervous system will speed up digestion to use energy.
Answer: A. The enteric nervous system will slow down digestion to conserve energy.
Explanation:
Answer:
C
Explanation
......
A person who has a weakened immune system may not be able to fight against infection because..
pathogens may enter the body and cause illness.
phagocytes many enter the body and cause illness.
normal cells crowd out unhealthy cells.
of an increase in the production of antibodies.
Answer:
the answer is A
Explanation:
I’m bored
Who knows how to do this
Answer:
Rill - a small groove in soil created by run off.
Gully - a channel of connected grooves created by run off.
Stream - one of the many channels created to form a river.
Tributary - series of connected channels that fills with water.
Explanation:
Hope it helps.
Answer:
Ew edgeunuity
Explanation:
why worker bees are called sterile female?
plz help me to this question....
Answer:
Worker bees are sterile although they are female because their ovary is not activated that means they cannot lay eggs like Queen bee. When Queen bee come closer to Worker bees,the worker bees egg producing gene subside, so no eggs are produced.When eggs are not produced , no fertilization takes places, so they are non- fertile or sterile.
Hope this helps...
Which of the following correctly describes connective tissue? made of electrically charged cells that send messages made of cells that are separated by a nonliving matrix made of sheets of cells that are tightly joined together and attached to a basement membrane made of cells capable of contraction
Answer:
the answer is D
Explanation:
I hope this helps
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all.
Answer:
C
Explanation:
The complete question: A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. In the experiment described in the scenario, which group represents the control group? A. Plant B B. Plant A C. Plant D D. Plant C?
The control group here would be plant D.
Control groups are usually used to minimize the effects of extraneous variables in the course of experiments and to ensure that the differences observed in different experimental groups are due to the effects of the independent variables.
In this case, all the plants were exposed to music except the control group because the aim of the experiment is to measure the effects of music on plant growth. Any difference in growth observed between those exposed to music and the control group can reliably be considered to be due to the music.
The correct option is C.
Answer:
d
Explanation:
The weather changed from cold to warm. Jessica was excited because should could wear her new flip flops and shorts to school. She had her science laboratory later in the day. What should she do to be safe? take clothes and shoes to school that cover her up put on her laboratory coat so it covers her shorts, and wear goggles wrap herself in a fire blanket so it covers her body remove her shoes so no chemicals get in them
Answer:
In order for Jessica to be as safe as she can be during her lab she should wear pants, long sleeves , and sneakers. After putting on her lab coat and goggles, there is a very low chance for her to get hurt from a chemical spill.
In order for Jessica to be as safe as she can be during her lab she should wear pants, long sleeves and sneakers. After putting on her lab coat and goggles, there is a very low chance for her to get hurt from a chemical spill.
What are bunsen burners?Bunsen burners are the equipment used in laboratories for heating and sterilizing processes. It is a device used to produce flames using atmospheric oxygen gas and fuel in the burner.
While using the bunsen burner, laboratory safety procedures should be practiced to ensure the safety of the person as well as the working place. Before igniting the burner should be inspected and checked for any leakages. The notebooks and papers must be placed away from eh burner to avoid any fire accidents as they are easily flammable and can catch fire.
Therefore, In order for Jessica to be as safe as she can be during her lab she should wear pants, long sleeves and sneakers. After putting on her lab coat and goggles, there is a very low chance for her to get hurt from a chemical spill.
Learn more about Jessica on:
https://brainly.com/question/10216953
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Which two statements in the passage are true about fungus-like protists?
Options are not provided in the questions, so the complete question is as follows:
Which two statements in the passage are true about fungus-like protists?
1) Fungus-like protists feed on decaying leaves.
2) They photosynthesize in the presence of sunlight.
3) They reproduce using spores. They use pseudopods to engulf any foreign material and convert it into food.
4) They are prokaryotic in nature.
Answer:
1) Fungus-like protists feed on decaying leaves.
3) They reproduce using spores. They use pseudopods to engulf any foreign material and convert it into food.
Explanation:
Molds are fungus-like protists and they are heterotrophs like fungi. Slime molds and water molds are well-known example of fungus-like protists. They feed on decaying organic matter such as leaves.
Fungus-like protists reproduce using spore and use pseudopods to engulf any foreign material and convert it into food.
Hence, the correct options are 1 and 3.
Answer:
1 & 3
Explanation:
I know stuff because im patrick and im a star
Plants absorb the greenhouse gas carbon dioxide during the process of _____.
Answer:
Photosynthesis
Explanation:
Plants convert carbon dioxide and water into sugar and oxygen through the process of photosynthesis. Plants absorb carbon dioxide from the atmosphere during photosynthesis.
Which of the following is mostly likely to result from an error during transcription A. it is formed by a particular sequence of amino acids B. it is read in groups of three nitrogenous bases C. it is made of the same components in all living organisms D. it is found in the base sequence of nucleic acids
Answer:
So I think you're trying to ask where transcription errors take place, which I would say is A.
Explanation:
DNA transcrption is when DNA is converted to RNA, which is then sent to ribosomes in the cell to make specific protiens(this is how viruses destroy cells, they use this system to make more viruses by causing viral RNA or DNA(transcripted)to be given to ribosomes) Anyway, transcritpion makes certain sequences of Amino acids for protiens, so an error is going to affect this area first, which can cause large systematic problems later.
why doesn't
bromine react with sulphur?
Answer:
The bromine will oxidize sulfur compounds in which the valence of sulfur is lower than six to sulfate.
Explanation:
In an experiment, a scientist decides to study the effect of exercise on cholesterol levels in people. He studies two set of people—those who exercise every day for an hour and those who don’t exercise at all.
............................ In this case, the statement that people who exercise for an hoour may have lower cholesterol level is HYPOTHESIS. ....................... The cholesterol level would be the DEPENDENT VARIABLE.
An hypothesis refer to a proposed statement based on prior knowledge, which is used as a starting point in scientific experimentation.
In scientific experiments, there are always two variables, independent and the dependent variable. The independent variable is the variable that is changed or controlled in a scientific experiment in order to determine its effects on the dependent variable.
How is meiosis similar to mitosis?
Answer:
Both mitosis and meiosis are processes of cell division. They use the same steps for cell division, including prophase, metaphase, anaphase and telophase. Also, mitosis produces 2 diploid cells, while meiosis produces 4 haploid cells.
Explanation: