Answer:
When a person touches a hot object and withdraws his hand from it without thinking about it, the heat stimulates temperature and danger receptors in the skin, triggering a sensory impulse that travels to the central nervous system. The sensory neuron then synapses with interneurons that connect to motor neurons.
Explanation:
What is the name for two specialized cells that will swell from water
pressure to contol gas loss from the leaf? *
Stomata
Mesophyll
Epidermis
Guard
Define climate change
Define global warming
Explain the difference between climate change and global warming
Answer:
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide global warming
Climnate change is a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
Global warming is a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
climate change has to do with the overall change of climate, while global warming has to do with just the warming of climate. climate change is a newer concept while global warming has been gradually increasing for a while
Name the term used to represnt a leaf that contains more than one
blade?
O
Compound
O Simple
O Alternate
Opposite
What is an example of an organ found in your body name three
Answer:
[tex]1)liver \\ 2)kidney \\ 3)heart \\ thank \: you[/tex]
3
Kevin experimented to find the effect of exercise on his body temperature. The steps of his experiment are shown below.
1. Measure his body temperature
2. Run in place for three minutes
3. Drink a glass of water
4. Measure his body temperature again
Which step in Kevin's experiment was NOT needed?
OA. 2
ОВ. 1
OC. 3
D. 4
Answer:
eghydew
Explanation:
hgdvfgjhedbfefg
Answer:
the answer is C.3
Explanation:
yw bye have a good day
fatty acids formula in diagram form
Answer:
sorry but I don't understand your question here
Explanation:
What question are you asking here
why root hairs are most
important to a plant
Answer:
Root hairs are generally thought to aid plants in nutrient acquisition, anchorage, and microbe interactions.
Explanation:
Explanation:
Because they vastly increase the root surface area and effectively increase the root diameter, root hairs are generally thought to aid plants in nutrient acquisition, anchorage, and microbe interactions
Opponents of vaccines argue that the science behind vaccines is “just a theory.”which of the following describes the problem with this argument
Answer:
That's a tricky one but personally I would put the 2nd option
eukaryotes a. are larger than prokaryotes b. have many different specialized organelles c. contains a nucleus d. all of the above
Answer:
d. all of the above
Explanation:
How far (in meters) will you travel in 2 minutes running at a rate of 5 m/s
Answer:
If you travel 5m/s (meaning after 1 second, you've run 5 meters)then after 3 minutes (or 180 second)you've run run 5×180 = 900Explanation:
Hope it's help you!!!
Weathering, Erosion, Deposition Summary about it
Answer:
Weathering is the breakdown of rocks at the Earth's surface, by the action of rainwater, extremes of temperature, and biological activity. It does not involve the removal of rock material.
Erosion is the process by which the surface of the Earth gets worn down. Erosion can be caused by natural elements such as wind and glacial ice. ... The key to erosion is something called "fluid flow." Water, air, and even ice are fluids because they tend to flow from one place to another due to the force of gravity.
Deposition is the geological process in which sediments, soil and rocks are added to a landform or landmass.
What colour is the chlorophyll in a plant?
Answer:
green
Explanation:
The green color of chlorophyll is secondary to its importance in nature as one of the most fundamentally useful chelates. It channels the energy of sunlight into chemical energy, converting it through the process of photosynthesis
give brainliest please I need it to level up
A well-written research question states the independent and dependent variables in the experiment.
For example, a student investigated the effect of soil pH on the number of strawberries produced by a
strawberry plant. Her research question was "How does the pH of soil affect the number of strawberriesproduced by a strawberry plant?
10. Write a research question, using the format suggested in the Read This! box, for the experiment inModel 2.
11. A student wonders, "Does the moisture content in soil affect how far a worm can dig?" Identify the variables that are being considered in this experiment and the variables that need to be
controlled.
Independent
Dependent
Controlled
The variables in the experiment being considered are :
Independent variable = moisture content Dependent variable = Depth Control variable = soil typeFor the first question, the model 2 experiment isn't given. However, to buttress on the stating both the dependent and independent variables in a research question ;
Taking the example given as an instance ;
The Independent variable is Soil pH : The Independent variables are used causes changes to the dependent variable. In this case, the dependent variable is the number of strawberries produced. The Different soil pH level are used to observe the changes in the Number of strawberries produced by the strawberry plant.
2.)
The Independent variable is the variable being manipulated by the researcher in other to observe the behavior of the dependent variable. In the experiment stated, the independent variables is the moisture content. The dependent variable is the variable being measured as the experimenter manipulates the independent variable, in this context, the dependent variable is depth being dug by the worm. The control variables are variables which are capable of influencing the result or outcome of our experiment but which we do not wish to test at the moment. A very important control variable in this context is the soil type.Learn more : https://brainly.com/question/4497530
Question 5 (1 point)
About what percent of water is usable by humans and other members of the
biosphere.
17%
33%
0 72%
1%
%
Answer:
0.72% or 1%
information differs from source to source so it's difficult to find a percentage that everyone agrees on
How Does Soil Ph Affect Enzyme Activity?
Answer:
hope it's help you dear
Explanation:
In summary, enzyme activity in soils can be altered with changes in pH because of the reversible reaction that involves ionization or deionization of prototropic groups in the active centre of the enzyme-protein or irreversible inactivation of the enzyme. The decline in soil urease, acid phosphatase
¿Qué es un fenómeno biológico?
Answer:
It is the biological phenomenon by which new organisms can be created.
Explanation:
identify clues you would look for to judge whether a claim is based on science or pseudoscience
Answer:
replication of results, peer view, and proofs obtained from a lot of ...
Explanation:
Drag each label to the correct location.
Identify the function of each organelle.
Explanation:
This is the labelled diagram
what is the most important reason for exploring the exploring the Earth's oceans?
A) because they are more interesting than space
B) for financial gain
C) to ensure the survival of our species
D) to secure funding for research
Answer:
C) to ensure survival of our species
Answer:
C) to ensure the survival of our species
Explanation:
The ocean can tell use many different things that can attribute to the survival and safety of our species. Exploring the ocean can tell us, how we are being affected by Earth's environment, also including climate, earthquakes, tsunami and many more.
Is the stomach anterior or posterior to the navel?
Answer: Anterior
Explanation:
Which area of the brain is considered the essence of life by many researchers?A :amygdalaB :cerebral cortexC :hippocampusD :limbic system
can someone answer this for me?
Answer:
A
through photosynthesis they bring in energy
plss mark brainliesttt
Hypothesis: A 5-gram quantity of salt will dissolve faster in 30°C water than it will in 10°C water. In addition to a hot plate and beakers, which of these items are needed to test the hypothesis above?
Although the options related to your question is missing a general answer is provided.
The items needed to test the hypothesis will include :
Hot plate and beakers Thermometersalt weighing balance waterA hypothesis is an idea/assumption made on limited resource/evidence and needs an experiment to confirm or modify it . the hypothesis above assumes that a 5-gram of salt will dissolve faster in 30°C water than it will in 10°C water. to carry out this experiment all variables involved must be measured, hence the use of the items listed above.
Therefore the items needed to test the hypothesis will include ; Hotplate or Bunsen burner, beakers, Thermometer, salt, water and weighing balance
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Knowing the half-life of carbon-14 enables scientists to
Plzz help ASAP
Answer:
Calculate the age of an object by finding how much carbon-14 remains in the sample
what is chlamydomonas?
Answer:
a common single-celled green alga which typically has two flagella for swimming, living in water and moist soil.
Based on what you know about technology, why do you think the atomic model has changed over time?
Answer:
This atomic model has changed over time. Scientists used the model to make predictions. Sometimes the results of their experiments were a surprise and they did not fit with the existing model. Scientists changed the model so that it could explain the new evidence.
Which is NOT true about cells?
Question 5 options:
(A)Cells are in all living things
(B)Every type of cell performs the same function
(C)Cells can reproduce
(D)Cells take in food and use energy
Answer: B
Explanation: Theres different type of cells that perform variety functions in the body
All of the following are correct about nucleic acids except:
Select one:
O a. Nucleic acids are made up of a sugar, a phosphate, and a nitrogen base.
O b. Nucleic acids are made up of a sugar, a sulfate, and a phosphate.
O c.
RNA is involved in protein synthesis.
O d. DNA directs the activities of the cell.
Answer:
b) Nucleic acids are made up of a sugar, a sulfate, and a phosphate. option b is incorrect.
Explanation:
Nucleic acids are made up of of a sugar, a phosphate, and a nitrogen base.
Hence all options are correct except b.
Hope this helps.
The incorrect statement is option b i.e., nucleic acids are made up of a sugar, a sulfate, and a phosphate.
What are nucleic acids?Nucleic acids are large biomolecules that are required by all cells and viruses to function.
Nucleic acids play an important role in the storage and expression of genomic information. DNA, or deoxyribonucleic acid, encodes the information that cells require to produce proteins.
Nucleic acids are massive biomolecules composed of monomers known as nucleotides. Nucleotides are made up of three parts including a pentose sugar (5-carbon sugar), a phosphate group, and a nitrogenous base.
There are two types of nucleic acids: natural and synthetic nucleic acids.
Nucleic acids are macromolecules composed of nucleotide units that occur naturally in two forms namely deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
DNA is the genetic material found in all living organisms, from bacteria to multicellular mammals.
Thus, the correct option is b.
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A team of astronomers discovers a new planet with water. They notice that the process of evaporation does not seem to be working on this planet. Which statement best explains the state of the water cycle on this newly discovered planet?
The water is gathered in lakes or oceans or frozen in snow and ice.
The water is trapped as water vapor in the atmosphere and clouds.
There is constant rain or snow falling on the planet's surface.
Water is frozen underground instead of flowing on the surface.
The statement that best explains the state of the water cycle on the newly discovered planet where evaporation is "not working" is the final statement, "Water is frozen underground instead of flowing on the surface."
The simplest explanation of the water cycle is one that contains 3 stages:
EvaporationCondensationPrecipitationin that order. To answer the question, we will focus on Evaporation. Evaporation when referring to water is when water is heated to the point that it boils, this causes the water to transition from a liquid state into a gas, and escape into the atmosphere as water vapor.
The first statement claims that perhaps water is gathered in lakes or oceans or frozen in snow and ice. If water is gathered in lakes or oceans and these are exposed to high enough surface heat, evaporation will take place. Also, if water is frozen or in snow, the rate of evaporation will be much lower, but may still take place if individual molecules contain enough heat. This statement offers some reasons why we may not observe evaporation but is not the best one available to describe this planet's water cycle.
Statements 2 and 3 are incorrect because they both describe processes for which evaporation is needed for them to be possible. In order for water vapor to be trapped in the atmosphere and clouds, the water itself must first evaporate, this water would then condense into clouds, and once heavy enough would fall onto the planet as rain. Since we observe no evaporation, these are not correct.
"Water is frozen underground instead of flowing on the surface." best explains the state of the water cycle on this planet because of the available answers, this one provides the most likely scenario for which astronomers would not be able to observe evaporation, given that it would happen on a small scale due to the very low temperatures and would take place underground, this would seem as though evaporation is not working. This is the correct answer.
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What is a blood clot?, Pliz l will mark you the brainest
Answer:
a blood clot is a gelatinous mass of fibrin and blood cells formed by the coagulation of blood
Explanation:
Answer:
Blood ClotThe process of forming a clot or thrombus in order to prevent excess loss of blood from the body is called the clotting of blood. A jelly mass like substance is formed by the platelets and fibrin in the blood. Platelets play a vital role in the clotting of blood.
Given below is the flow chart representing the major steps involved in the process of clotting of blood:
Injury to blood vessel and platelets release prothrombin
⇓
Activation of prothrombin to thrombin
⇓
Splitting up of fibrinogen to fibrins by thrombin
⇓
A mesh is formed around the wound controlling RBC and platelets by fibers present in fibrins
⇓
Bleeding is stopped
⇓
The clot hardens and becomes smaller in size
⇓
New cells are grown to rebuild the wounded site
⇓
Plasmin enzymes are released and the clot is dissolved
