Nitrogen is so important to plants because it is a major component of chlorophyll , or the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (photosynthesis). It is also a major component of amino acids, the building blocks of proteins for plants.
Four movie tickets cost $48 . At this rate, what is the cost of 5 movie tickets
What part of the bone produces blood cells?
Answer:
Red blood cells are formed in the red bone marrow of bones
Sensory _____ are the parts of the body that change a stimulus into a nerve impulse and response. effectors receptors pathways potentials
Sensory receptors are the parts of the body that change a stimulus into a nerve impulse and response.
A food chain is the feeding relationships among all of the organisms in an ecosystem true or false?
Answer:
True
Explanation:
Hope its help ;-);-)
Answer:
FALSE
Explanation:
True or False about neutrons.
1. Discovered by Dimitry Mendeyev
2. Neutrons are the lightest of all subatomic particles
3. Neutrons subatomic particles with no charge
4. Neutrons are found inside the nucleus
5. Neutrons have six times the mass of a proton
1. Melissa raises crickets at her pet store that she
sells for reptile food. She thinks that crickets
chirp more often when the temperature gets
warmer. She decides to conduct an experiment to
prove her theory
a. Manipulated variable
(IV)
b. Responding variable
(DV).
c. Controlled variable
d. Controlled variable
Hypothesis: If
then
because
_(manipulated variable)
(responding variable)
Answer:
a. Manipulated variable: TEMPERATURE
b. Responding variable: CRICKET CHIRP
c. Controlled variable: Same species of cricket
d. Hypothesis: IF the temperature is increased, THEN crickets will chirp more
Explanation:
Independent variable, also called the manipulated variable, is the variable that is changed or manipulated in an experiment. In this case, the independent variable is the TEMPERATURE.
Dependent or responding variable is the variable that responds to changes made to the independent variable. The dependent variable in this case is CHIRP OF THE CRICKETS.
Controlled variable is the variable that must be kept unchanged for all groups throughout the experiment. The controlled variable in this case is SAME SPECIES CRICKET USED.
Hypothesis is a testable explanation (via experimentation) to an observed problem or a given question. In this investigation involving Melissa, an hypothesis is: IF the temperature is increased, THEN crickets will chirp more.
You find a bone in a rock you think it's about 700,000 years old . Would you use radiocarbon dating to find the age of the bone?
Answer:
Explanation:
yaea
What differentiates passive transport from active transport?
O Molecules move down a concentration gradient during passive transport.
Passive transport involves molecules moving across the cell membrane.
ATP is needed for passive transport to occur
Proteins have a role in passive transport.
The process of change in a population over time is called
.
The process by which organisms that are better adapted to the environment survive and reproduce is called
.
Answer:
evolution
natural selection
.
Explanation:
This is the answer that worked for me.
The process of change in a population over time and the process by which organisms that are better adapted to the environment survive and reproduce is called "evolution."
What role does evolution play in the life of an animal?Natural selection, the best-known mechanism of evolution, explains the gradual change in the genetic makeup of a population caused by mechanisms such as genetic drift, mutation, and gene flow. The survival and reproduction of individuals with advantageous traits, allowing those traits to become more common in the population over time through the evolution process and adding value to the animal's life.
Hence, the process of change in a population over time and the process by which organisms that are better adapted to the environment survive and reproduce is called "evolution."
Learn more about the evolution role by clicking here.
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Steps of the light-dependent reactions in order
sunlight photosynthesis
Explanation:
manufacture food theough sunlight
Can someone help me please
Answer:
Cellular respiration
How do enzymes affect a chemical reaction, making it easier to occur?
Answer:
Enzymes speed up a chemical reaction making the reaction easier to occur.
This is the act of trying to find the answer to an unknown question by the use of experimentation and research.
Answer:
Question Answer
Inquiry This is the act of trying to find the answer to an unknown question by the use of experimentation and research.
Investigation This is the process of researching or studying a concept. Examination, inquiry
Explanation:
what color is blood when it is in your blood
Answer:
red if it has oxygen, but blue when it doesnt
Explanation:
Answer:
Red or blue depending if it has oxygen or not
Explanation:
Nervous
Match each body system with Its main organ.
Circulatory
Digestive
Lungs
Excretory
Heart
Respiratory
Brain
Stomach
Bladder
Which of the following statements is correct?
Farming is a relatively small industry that plays a small role in the economic success of the nation.
Farming is a relatively small industry that plays a large role in the economic success of the nation.
Farming is a relatively large industry that plays a large role in the economic success of the nation.
Farming is a relatively large industry that plays a small role in the economic success of the nation.
Answer:
c Farming is a relatively large industry that plays a large role in the economic success of the nation.
explain why did saturnino Fabros , a 20-year traffic enforcer veteran , was not a victim of cyber bullying? instead of Robert Blair carabuena who was in a video who slapped to saturnino
.
Answer:Carabuena was caught on camera slapping MMDA traffic enforcer Saturnino Fabros after he was pulled over for a traffic violation. Image of page 12. Describe the acts of cyber bullying that the netizens did to Carabuena. ... such as "Patayin si Robert Blair Carabuena", "Like if you want Robert Blair Carabuena to be fired.
Explanation:
One reason male peacocks spread their tail feathers is to
attract a mate. How does choosing a male with a bright,
full tail increase a peahen's chance of producing healthy
peachicks?
Answer:
the appearance of the peacock shows he is healthy, and if the peahen mates with him, it is likely that their offspring will also be born healthy. you would want to reproduce with the fittest individuals of your species and guarantee your species will continue to thrive.
Explanation:
Exposure the radiation such as an X-ray may change the sequence of
nitrogen bases in DNA. What is this specifically called?
1) a mutation
2) a translation
3 ) a replication
4) a transcription
Answer:
Mutation
Explanation:
What is the difference between phenotype and genotype? A. Phenotype is the physical expression of a trait and genotype is all that alleles in the organism. B. Genotype is the physical expression of a trait and phenotype is all the alleles in the organism. C. Phenotype are the alleles that are mast in genotypes are the alleles that are expressed. D. Phenotype is when both allies are the same and genotype is when the alleles are different.
Answer:
A. Phenotype is the physical expression of a trait and genotype is all that alleles in the organism.
Explanation:
An organism's genotype is the combination of alleles found at a particular gene. The phenotype is how theses alleles are expressed to form a trait.
In a diploid organism there are two alleles for every gene. In simple Mendelian traits. one allele is dominant over the other, which is recessive. That means, that the phenotype displayed will be associated with the dominant allele whenever it is present.
Answer:
Explanation:
Phenotype -Physical
Genotype-Gene
What is the average for the following set of measurements?
27°C, 12°C, 31°C, 19°C, 23°C, 11°C, 17°C
O A. 20°C
O B. 140°C
O C. 28°C
O D. 7°C
If you are a diploblastic animal, you have:__________ A. mesoderm. B. radial symmetry. C. a coelem. D. a mouth that developed from the blastopore. E. all of the above
Answer:
C. Radial Symmetry
Explanation:
Diploblastic Animals are those animals whose blastula have basically two primary germ layers. These layers are called the endoderm and the ectoderm. On the contrary, most other animals have three layers found in them. The endoderm is an embryonic germ layer that gives rise to the gut. They also give rise to the tissues that form the internal organs. On the other hand, the ectoderm produces skin and nervous tissue and does cover the outside of the embryo. This type of body plan is particularly seen in cnidaria and ctenophora
A substance in food that your body needs for growth, repair, and energy is a
-bacteria
-Virus
-nutrient
Answer:
nutrient
Explanation:
Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water
Answer:
nutrient
Explanation:
Your body does not need bacteria for growth, repair or energy. Bacteria poses harm to your body. Viruses do the same as bacteria, except they might be worse. The answer is nutrient.
kacey likes to mountain bike, intill she can’t bike anymore.
17. Addition of hydroxide ions to a solution will
Select one:
O A. have no effect on acidity.
O B. increase the acidity.
O C. buffer the solution,
O D. decrease the acidity.
Answer:
D
Explanation:
Addition of hydroxide ions will decrease its acidity and make it more basic.
Both animal and plant cells are eukaryotic cells. What is the difference between animal and plant cells?
OA
Plant cells have cell walls and chloroplasts, but animal cells do not
Animal cells have nuclei and mitochondria, but plant cells do not
OB
OC. Plant cells have nuclei and mitochondria, but animal cells do not
OD. Animal cells have cell walls and chloroplasts, but plant cells do not
Answer:
A. Plant cells have cell walls and chloroplasts, Animal cells do not.
Explanation:
What control showed that transformation and not conjugation or transduction was responsible for the results
When we talk of transformation,we are talking of a biological method of the alteration of gene in a living cell especially as seen in a bacterial cells.
As a result of the incoperation and uptake of foreign genetic material from it's surrounding, the said bacteria then takes up the exogenous DNA,this it does by binding it with specific receptors that are present in its cells membrane or it can do so through diffusion.
However,the foreign DNA will either get incorporated in the DNA of the host chromosome or it will act like a plasmid and them express itself in the cell of the new host.
Then in conjugation,we see the transfer of circular plasmid DNA,this is transferred from one bacterium to another and it is done through cell to cell contact.
Also, transduction is still another way of transferring genetic materials,here the DNA is transferred to another bacteria via bacteriophage through lysogeny.
Now,in a given experiment,to identify if the reaction is transformation and not configuration and transduction,a controls sample will be provided,this control sample will contain DNase coupled with the reaction mixture,if there is a revelation of an exogenous DNA by the test sample,and there is no expression by the control,then we know that is transformation,we know it is transformation because DNase cleave free DNA and it will not be able to cut the DNA that is present inside the cell of donor bacteria that is in conjugation or bacteriophage(transduction).
Therefore,the addition of DNase in control sample can determine if the transfer of genetic materials in the test samples is transformation and not transduction or conjugation.
Need answer plz for my grades
Answer:
The flow of energy
Explanation:
Facts about physical changes in matter
Answer:
It is the change that are not easily reversible and new substances are formed. example burning of wood,rusting of iron, burning of coal, fermentation
Explanation:
pls hope it helps
Answer:
All physical changes are reversible and their mass does not change. Some physical changes examples are melting, freezing, and evaporating.
Explanation:
What is the best way to record observations related to growth over time?