Answer:
Experimental group
Explanation:
An experimental group is a test sample or the group that receives an experimental procedure. This group is exposed to changes in the independent variable being tested.
Source: thoughtco.com
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:
My category includes genetic material.
O carbohydrates
O lipids
O proteins
O nucleic acids
can someone answer this for me?
Answer:
A
through photosynthesis they bring in energy
plss mark brainliesttt
¿Qué es un fenómeno biológico?
Answer:
It is the biological phenomenon by which new organisms can be created.
Explanation:
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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The fetus receives all its nutrients and oxygen through the placenta. Therefore, fetal lungs are non-functional, as far as pulmonary circulation is concerned. It only needs to receive enough blood to sustain growth. There are a couple of features in the fetal cardiovascular system to shunt the blood away from the lungs and only provide enough for sustenance and keep most blood in general circulation. Which two structures in fetal circulation aid in bypassing the pulmonary circulation
The two structures in fetal circulation that aid in bypassing the pulmonary circulation are:
ductus arteriosus andductus venosusThe fetal circulation, the fetal heart doesn't pump much blood to the liver and the lungs. This is because it receives nutrients from the mother through the placenta.
Two of the structures that shunts blood away from the heart are:
ductus venosus: When blood enters the placenta through the umblical vein, it passes through the ductus venosus, mainly bypassing the liver.ductus arteriosus : The deoxygenated blood from the head region of the fetus is pumped through the right ventricle into the pulmonary artery and then mainly through the ductus arteriosus into the descending aorta, then through the two umbliical arteries back into the placenta.The above described features bypasses blood away from the lungs through ductus venosus and ductus arteriosus.
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i Need help with science Which two groups of elements in the periodic table are the most reactive?
A halogens and noble gase
B alkaline earth metals and halogens
C alkali metals and halogens
D noble gases and alkali metals
Answer: alkali metals and halogens
Explanation:
The two groups of elements in the periodic table those are the most reactive are alkali metals and halogens. The correct option is C.
What is periodic table?The periodic table (also known as the periodic table of elements) is organized so that scientists can quickly determine individual element properties such as mass, electron number, electron configuration, and unique chemical properties.
Non-metallic elements in the periodic table include hydrogen, carbon, nitrogen, oxygen, phosphorus, arsenic, and selenium.
Metals are minerals found underground in rocks, such as iron or lead. Heat is used to separate these from the rocks. Metals are extremely useful.
The periodic table is significant because it is organized to provide a wealth of information about elements and how they relate to one another in a single, easily accessible reference.
The table can be used to predict the properties of elements, including those yet to be discovered.
Considering their valence electrons, the alkali metals and halogens are the two most reactive groups of elements.
Thus, the correct option is C.
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Which area of the brain is considered the essence of life by many researchers?A :amygdalaB :cerebral cortexC :hippocampusD :limbic system
Identify two examples of foods that contain high amounts of
each of the following macromolecules: carbohydrates, lipids, and proteins.
Answer:
Carbohydrates: pasta and rice, both very starchy
Lipids: beef and bacon, both have animal fat in themm which contains lipids
proteins: eggs and beef, lots of animal derived foods contain proteins since thy are the basis of life.
Explanation:
Here are two examples for each of the three macromolecules; Carbohydrates; Bread, Rice. Lipids (Fats); Avocado, Salmon. Proteins; Chicken Breast, and Beans.
Carbohydrates;
Bread; Bread is rich in carbohydrates, primarily in the form of starch. It provides a quick source of energy due to its high carbohydrate content.
Rice; Rice, especially white rice, is another significant source of carbohydrates. It is a staple food in many cultures and contributes to daily energy intake.
Lipids (Fats);
Avocado; Avocado is a fruit that contains healthy monounsaturated fats. It is often used in salads, spreads, and various dishes.
Salmon; Salmon is a fatty fish that provides omega-3 fatty acids, which are essential for heart and brain health.
Proteins;
Chicken Breast; Chicken breast is a lean source of protein, low in fat. It is commonly consumed for its high-quality protein content.
Beans; Legumes such as beans (e.g., kidney beans, black beans) are rich in plant-based proteins. They are a staple in many vegetarian as well as vegan diets.
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What ecological levels does not describe interacting biotic and abiotic factors in an area
Answer:
The broadest, most inclusive level of organization is the biosphere. This includes both biotic and abiotic components of the earth and the part of the atmosphere that supports life.
The Habitat is an ecological level that does not describe interacting biotic and abiotic factors in an area.
What is Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. In other words, it may also be characterized as the area where the basic demands of an organism are fulfilled like food, space, and mating partner.
Habitat is something that only signifies the effect of abiotic factors which are favorable for the survival of any individual of any species under controlled variations.
In this question, the rest of the options include the biome, community, and ecosystem. All such ecological levels significantly illustrate the interaction between biotic and abiotic factors of a given area.
Therefore, the Habitat is an ecological level that does not describe interacting biotic and abiotic factors in an area.
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Your question seems incomplete. The most probable complete question is as follows:
Which of the following ecological levels does not describe interacting biotic and abiotic factors in an area?
BiomeCommunityEcosystemHabitatWhat is 1 example of our everyday life where we use the scientific method? Help Pls.
Answer:driving in traffic/directions
Explanation: you look at gps, decide which route you want to take, choose 1 route and decide if you believe it was the best or try others till you find one you think is best route
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
Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law?
Answer:
Cell theory meets the definition of a scientific theory because it can be proven, it has been tested for a long period of time and therefore there are many evidences that support the theory but not enough to become a law. Well scientific laws are statements based on repeated experiments or observation, but also, a law is something that always applies under the same conditions. Evolution occurs in the characteristics of living things within a species overtime. . A theory is much more complex: it explains why something happens. A law only describes what happens.
The cell theory meets the definition of a scientific theory but i do not think it should be a scientific law.
Explanation:
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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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.
identify iron by its properties
Iron is a lustrous, ductile, malleable, silver-gray metal (group VIII of the periodic table). It is known to exist in four distinct crystalline forms. Iron rusts in damp air, but not in dry air. It dissolves readily in dilute acids.
Standard potential: - o.44 V (Fe2+/ Fe); 0.77 V ...
Density: 7.8 g.cm-3 at 20°C
Melting point: 1536 °C
Ionic radius: 0.076 nm (+2); 0.064 nm (+3)
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
Distilled water has a pH of 7. Milk has a pH of 6. Therefore, milk is: A. 10 times less acidic than distilled water. B. half as acidic as distilled water. C. 10 times more acidic than distilled water. D. twice as acidic as distilled water.
Answer:
(C) 10 times more acidic than distilled water.
Explanation:
The pH scale is logarithmic, meaning a pH difference of one is a difference of 10 times.
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.
can someone answer this for me?
Answer: A!
Explanation: All biological organisms play a part in the earth's ecosystem, but consumers get energy from eating other organisms and producers make energy on their own. Grass is a producer, a self-sustaining organism that obtains its energy from the sun. In the process, it introduces new organic substances into the food chain and plays a key role for consumers. Grass forms the basis of the food chain because of this ability.
If the sequence of bases on the mRNA codon is AUU, what would be the sequence of bases on the opposite strand assembled by the tRNA?
Answer:
UAA
Explanation:
Uracil which replaces Thymine in RNA binds with adenine
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
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
Snsbdbsbssbdjsbdddbdbdb
Answer:
teachers teachings n my brain b like
Explanation:
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
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:
What is an example of an organ found in your body name three
Answer:
[tex]1)liver \\ 2)kidney \\ 3)heart \\ thank \: you[/tex]
Which biome on the planet experiences relatively small precipitation amounts and the dominant vegetation are coniferous trees?
-tropical rain forest
-savanna
-taiga
-tundra
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
Please describe the location of all the subatomic particles and give the name of the particle(s) that is connected to the
Atomic Number of an element.
