Answer:
The correct answer is A.
Explanation:
A mutagen changes the level of mutations that occur in the DNA either by affecting it physically or chemically. This helps researchers create different organisms with altered phenotypes according to what the research needs so that the genes can be investigated further under a controlled environment.
So the answer is A.
I hope this helps.
what comes 1st in the scientific method
Answer:
The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false.
Explanation:
your welcome
Which of these can be decomposed by a chemical change?
Answer:
B) CO
Explanation:
Chemical decompsition or breakdown is defined as the process in which a substance can be broken down into simpler compounds through chemical means.
CO or carbon monoxide can be decomposed by chemical change because it can be broken down into into carbon and oxygen.
While Co (cobalt), Cr (chromium), and Cu (coppoer) are present in its simplest form and can not be decomposed further.
Hence, the correct answer is "B) CO".
Which of the following groups gets energy from decaying organisms? A: producers B: omnivores c: decomposers d: secondary consumers
Answer:
decomposers
Explanation:
decomposers feed on dead organisms in the process decomposing it
The rate of heat production is increased by increasing muscle contraction by movement is: Shivering thermogenesis Non- Shivering thermogenesis Vasoconstriction Vasodilation
Answer:
Shivering thermogenesis.
Explanation:
The rate of heat production is increased by increasing muscle contraction by movement is shivering thermogenesis because nerve impulses are transmitted to the skeletal muscles by the hypothalamus which will result to contractions that will produce heat.
Shivering thermogenesis is Contraction-mediated heat production High intensity shivering activates large muscles and produce more glycolysis which is then use as the main source for heat production
How are biotic factors and abiotic factor related
Answer:
they are related cause of the important feeding relationships
Explanation:
food producers like plant will love to use abiotic factors such as sun energy and nutrients to make food
What ppb refer to regarding water testing
Answer:
On January 22, 2001, EPA adopted a new standard for arsenic in drinking water of 0.01 mg/l or 10 parts per billion (ppb), replacing the old standard of 50 ppb. Water systems had to meet the new standard by January 23, 2006.
Explanation:
Answer:
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators."raw water" quality – characteristics of a water source prior to treatment for domestic consumption (drinking water). See Bacteriological water analysis and specific tests such as turbidity and hard water.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators."raw water" quality – characteristics of a water source prior to treatment for domestic consumption (drinking water). See Bacteriological water analysis and specific tests such as turbidity and hard water."finished" water quality – water treated at a municipal water purification plant. See Bacteriological water analysis and Category:Water quality indicators.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators."raw water" quality – characteristics of a water source prior to treatment for domestic consumption (drinking water). See Bacteriological water analysis and specific tests such as turbidity and hard water."finished" water quality – water treated at a municipal water purification plant. See Bacteriological water analysis and Category:Water quality indicators.suitability of water for industrial uses such as laboratory, manufacturing or equipment cooling.
a compound made of carbon, hydrogen, and oxygen that living things use for structural purposes and as their main source of energy
Answer:
glucose
Explanation:
a compound made up of carbon hydrogen and oxygen that living things use for structural purposes and as their main source of energy is glucose which produce 36 ATP molecule on respiration which is one of the important source of energy and living organism use it for performing their activities
The difference between macroevolution and microevolution is that: Please choose the correct answer from the following choices, and then select the submit answer button. microevolution occurs in prokaryotes, whereas macroevolution takes place among eukaryotes. they take place on different time scales. microevolution involves changes to individuals within a population, whereas macroevolution involves changes to all of the individuals within a population. microevolution has been proven, whereas macroevolution is very speculative. macroevolution occurs with physical structures, whereas microevolution occurs with physiological traits.
Answer:
What is the difference between microevolution and macroevolution? Microevolution deals with changes in the gene pool of a single population. Macroevolution considers the broad pattern of evolutionary change over long periods of time and includes the origin of new groups.
__ are molecules that carry information in cells.
a.carbohydrates
b.lipids
c.nucleic acids
Answer:
nucleic acids are molecules that carries information in cells.
Which function allows animals to find mates?
Answer:
Locomotion
Explanation:
it helps in animals for finding food and mates
lus
The carbon released during cellular
respiration is in the form of carbon
dioxide, which is a gas. Where is this
carbon released?
Answer:
Explanation:
During cellular respiration, glucose and oxygen are converted into energy and carbon dioxide. Therefore, carbon dioxide is released into the atmosphere during the process of cellular respiration.
what is mean by chromosomes?
Answer:
A chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
A chromosome is a strand of DNA that is encoded with genes.
In most cells, humans have 22 pairs of these chromosomes plus the two sex chromosomes (XX in females and XY in males) which make a total of 46.
Explanation:
Answer:
answer is here
Explanation:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
What is the difference between a living specimen and a once-living specimen
3.Explain how energy from the sun can eventually be used for active transport in the alimentary canal
(7 marks)
Answer:
See the answer below
Explanation:
First of all, the radiation energy from the sun is converted to chemical energy by green plants in a process known as photosynthesis. The equation of the process is represented below:
[tex]6CO_2 + 6H_20 + (radiation) -->C_6H_1_2O_6 + 6O_2[/tex]
The chemical energy is locked up as carbohydrate in the green plants. When humans or any other animal consumes green plants or any of their products, the carbohydrate is broken down through a process known as respiration. The equation of the process is as below:
[tex]C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + energy[/tex]
The locked-up energy - usually in the form of ATP - becomes available to be used for various metabolic processes in the body, including active transport in the alimentary canal.
In some cases, humans or animals generally do not consume green plants directly. They consume organisms that consume green plants. Such humans are still able to extract some of the energy through respiration and use it for their metabolic processes.
How will the movement of substances be altered in the phloem during spring season? Why?
Answer:
The phloem is responsible for transporting food from leaves to other parts of the plant.
The transport of pholem is bidirectional and changes the movement of particles according to the season. Generally, the transportation occurs in the direction of the source to sink but in spring season the direction is opposite that is from sink to source because the source and sink are n opposite sides. So in spring season, the stem tubers are sources and the growing leaves are sinks.
The
is important to pre-ruminants because it allows the milk to travel directly from the mouth to the
Answer:
reticular groove
Explanation:
An unwanted and potentially ecologically devastating byproduct of fishing is bycatch, or unwanted marine species caught and killed in the nets. Bycatch can be anywhere from _____% of the overall catch.
Answer:
30% to 70%
Explanation:
At which stage of the scientific process would a scientist look at experimental data from other scientists to set up a new experimental study?
a. observing
b. testing a hypothesis
c. evaluating results
d. forming a hypothesis.
Answer:
D
Explanation: press that thank you for me
The construction of a hypothesis is the stage of the scientific process that would involve a scientist looking at experimental data from other scientists in order to set up a new experimental study. Thus, the correct option is D.
What is the Scientific process?The scientific process may be defined as the complete methodology of intentionally deriving facts through the process of testing and experimentation of data.
The scientific process involves numerous steps such as formulating an observation, constructing a hypothesis, determining a prediction, conducting an experiment, and finally analyzing the outcome/results.
The analysis of the scientific data of other scientists is an approach to gathering external information based on the same topic categorized under a methodology of the scientific process.
Therefore, the construction of a hypothesis is the stage of the scientific process that would involve a scientist looking at experimental data from other scientists in order to set up a new experimental study. Thus, the correct option is D.
To learn more about Scientific processes, refer to the link:
https://brainly.com/question/24607535
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Conalan wants to answer the quesionn does phosphrus affect tomato fruit production? Which statement represents a hypothesis that he can test to answer his question
Answer:
If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.
Explanation:
The available options to the question are:
If phosphorus affects tomato fruit production, then tomatoes that are fertilized with phosphorus will have larger leaves.
If phosphorus affects tomato fruit production, then phosphorus should be added to the soil during planting.
If phosphorus affects tomato fruit production, then adding phosphorus to the soil will make tomatoes taste better.
If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.
The correct answer here would be that "If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes."
The hypothesis represents a tentative statement relevant to the research being carried out. What researchers do during the course of researching is to test the validity of hypotheses with experiments.
Since the main aim of the research is to find out if phosphorus affects tomato fruit production, the relevant hypothesis must effectively address the main aim of the research.
The production of tomato can only be measured from the yield of tomato fruits produced by the tomato plants. If phosphorus does indeed affect tomato fruit production, then the tomato plants that are supplied with the element will produce a higher yield of tomato fruit as compared to the ones without phosphorus.
Justin B. believes that the temperature lowering during the fall months is what causes the color of the leaves to change. He set up an experiment wherein he placed some plants in 80 degrees rooms and some in 60 degree rooms. He then observed the color of the leaves for a total of 1 month. At the end of the month Justin observed that ¾ of the plants in the 60 degree. what is the control group, independent variable and dependent variable ?
Answer:
Independent Variable: temperature
Dependent Variable: Color of leaves
Control Group: Whole group temperature was at 80 degrees
Independent Variable: temperature
Dependent Variable: Color of leaves
Control Group: Whole group temperature was at 80 degrees
In this way, it should be matched.
Learn more: https://brainly.com/question/5763151?referrer=searchResults
Cell walls of bacteria (domain Bacteria) usually consist of _____________, a network of polysaccharide molecules connected by polypeptide cross-links.
Answer:
the answer is Peptidoglycan
What is an appropriate way to analyze
the results of an experiment
A. Creating a graph
B. Creating a data table
C. Making observations
D. Asking questions
Answer:
option A IS CORRECT
Explanation:
creating a graph is an appropriate way to analyze the result of an experiment
When heating a substance in a test tube, it is permissible to look into the test tube or to point the tube in the direction
of other students
a True
b. False
Answer:
False.
Explanation:
It's very dangerous.
Genes determine the
of organisms.
Answer:
traits
Explanation:
genes determine the traits of an organism
Answer:
Traits
Explanation:
could I have some help on this pls?
Answer: D
Explanation: over the courses of time, we discover more and more explanations for causes of chemical reactions, biology, etc.
Why is open pit mining so devastating to the environment?
A. It completely removes any topsoil
B. It causes mass erosion of sand
C. It exposes dangerous chemicals buried in the earth's crust
D. It releases a lot of carbon dioxide into the air.
Answer:
B
Explanation:
i think B is the correct
Answer:
It completely removes any available topsoil.
Explanation:
doing the test rn
Help!! Which of these are amphibians and which are reptiles? Tree frog Alligator Crocodile Salamander Newt Common lizard
Answer:
tree frogs → amphibians
alligator → reptile
crocodile → reptile
salamander → amphibians
newt → amphibian
common lizard → reptiles
(✿◠‿◠) hope this helps...
Answer: Hi!
These animals are reptiles:
Alligator
Crocodile
Common Lizard
Reptiles are cold - blooded animals. Their class includes snakes, lizards, crocodiles, turtles, and tortoises. They usually have dry, scaly skin, and typically lay soft-shelled eggs on land. Reptiles need to bask in the heat to keep their body temperature up. If their surroundings are cold, then their internal temperature drops.
These animals are amphibians:
Tree Frog
Salamander
Newt
Amphibians are cold blooded animals as well! They are small creatures that need water, or a moist environment, to survive. Most amphibians start off their life cycle in the water, and then transform into an animal with lungs and legs! Cool, right? The most known for this process are frogs and toads.
Hope this helps!
What does big breasts symbolises for woman?
The circuitry of the autonomic system allows for control in activation. The characteristic that allows a small number of preganglionic cells to stimulate a large number of postganglionic cells is
Answer
The characteristic that allows a small number of preganglionic cells to stimulate a large number of postganglionic cells is called Divergence
Explanation:
Because In a diverging circuit, a single neuron synapses with more than one postsynaptic cell and Each of these synapses with additional number of cells thus allowing for one neuron to stimulate up to a very large number of cells.
Write a short answer to each question.