Answer:
b
Explanation:
Have a great day!
Activation energy is the energy required for a reaction to proceed, and it is lower if the reaction is catalyzed.
Phoebe is taking samples from a lake to determine how the populations of aquatic life change during the summer. Each week for a month she takes samples from different areas of the lake. Over the course of a month, she finds the marine life listed in the chart below. What should Phoebe change about her methodology to better address her question?
Answer:
This question is incomplete
Explanation:
However, the main thing she needs to "change" in her methodology is to take samples from different lakes instead of taking samples from the same lake. This is because it is possible there are other factors affecting the population growth in that lake which might not be affected by the summer season.
Another thing Phoebe might want to look at is the possibility of conducting this experiment during other seasons (like winter or spring), to be sure what she is experiencing is actually as a result of the season.
Answer: Take samples from the same location each time.
*(IF)* this is in refrence to this chart (I will link it) then it would be (B) Take samples from the same location each time.
Explanation:
I took the test
Which of the following associations is NOT correct?
A.
Fats - insulation
B.
Proteins - enzymes
C.
Carbohydrates - energy
D Nucleic acids - structural units
Answer:
D
Explanation:
Nucleotides are structural units of nucleic acids.
Nucleic acids are not associated with providing structural units. Option D is correct.
A. Fats - insulation: This association is correct. Fats serve as a source of insulation in the body, providing thermal protection and helping to maintain body temperature.
B. Proteins - enzymes: This association is also correct. Proteins are essential for the functioning of enzymes. Enzymes are protein molecules that act as catalysts in biological reactions, helping to speed up chemical reactions in the body.
C. Carbohydrates - energy: This association is correct as well. Carbohydrates are the primary source of energy for the body. When consumed, carbohydrates are broken down into glucose, which is used by cells as a fuel to carry out various functions.
D. Nucleic acids - structural units: This association is not correct. Nucleic acids, such as DNA and RNA, are not primarily involved in providing structural units. Instead, they play a crucial role in storing and transmitting genetic information, which is necessary for protein synthesis and the inheritance of traits.
In summary, option D is the correct answer because nucleic acids are not associated with providing structural units.
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 ILL MARK BRAINLIST
which of the following methods of dealing with sewage falling sure the future health of a local environment in the organisms that live with in it?
a. pouring the sewage directly into a river that empties into the ocean
b. there is no safe way to handle sewage
c. directing the sewage to a large underground chambers to be stored indefinitely
d. sending the sewage to a biological water treatment plant
Answer:
I would say it is D or C
Explanation:
20PNTS AND A BRAINLLIEST!!SOMEONE PLS HELP I DONT UNDERSTAND BUT I NEED TO TURN IT IN!!
Write the cellular respiration equation and explain how energy and matter are changed. Include the following key terms in your answer: energy, converted, chemical, ATP
Answer:
The Cellular Respiration equation: C6H12O6 + 6O2 → 6CO2 + 6H2O
Matter either loses or absorbs energy when it changes from one state to another. For example, when matter changes from a liquid to a solid, it loses energy. The opposite happens when matter changes from a solid to a liquid. For a solid to change to a liquid, matter must absorb energy from its surroundings
differentiate amoung Earth systems based on the states of matter found in each system
What is the gradual change in a species over time called?
A. Evolution
B. Nucleotide
C. Adaptation
D. Natural selection
pure substance grade 7
Answer:
Explanation:
In the more general sense, a pure substance is any homogeneous mixture. That is, it is matter that appears uniform in appearance and composition, no matter how small the sample size. Examples of pure substances include iron, steel, and water. Air is a homogeneous mixture that is often considered to be a pure substance.
Which of these is a factual statement about natural resources?Immersive Reader (10 Points) Someday, humans will run out of fossil fuels. Using wind energy will make us feel better about ourselves. Fuel cells are the most important technology we've ever developed.
Answer:
Someday, humans will run out of fossil fuels.
Explanation:
A factual statement is defined as the statements that are based on true facts and research.
A factual statement about natural resources is that "Someday, humans will run out of fossil fuels" because fossil fuels are non-renewable resources that take thousand or many years to form and are present in a limited amount in our environment. Many kinds of research are made on this topic which says that if fossil fuels will be used at the same speed by humans, someday humans will run out of fossil fuels.
Hence, the correct answer is " Someday, humans will run out of fossil fuels."
What is the monomer of carbohydrates?
Answer:
Monosaccharides are the monomers of carbohydrates and are often referred to as “the simple sugars”.
Explanation:
SCIENCE PROJECT THE WATER CYCLE
Answer: like this or something else ?
Explanation: are you creating an actual project?
Evaporation, condensation, and precipitation are frequently taught as three basic, circular processes that make up the water cycle.
What is Water cycle?In order to increase our capacity to forecast weather, climate, water resources, and ecosystem health, NOAA is working to deepen our understanding of the water cycle at all sizes, from the global to the local.
Life on Earth depends on water. Water connects the main components of the Earth's climate system, including air, clouds, the ocean, lakes, plants, snowfall, and glaciers, in its three states of solid, liquid, and gas.
The water cycle demonstrates how water is constantly moving both inside the Earth and in the atmosphere. It is a complicated system with a wide range of processes.
Therefore, Evaporation, condensation, and precipitation are frequently taught as three basic, circular processes that make up the water cycle.
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How are scientists who study Earth systems having a positive effect on the future of human society?
Joe Nuts believes that the moon is made out of cheese and is really happy about it. If he goes to the moon one day and finds out the truth how will he feel ?
Answer:
He would feel sad
Explanation:
This is because Joe couldn't dip his nuts in the cheese
Within an individual cell, where are the cytoplasm and the nucleus found? What characteristic of plant cells can be inferred from observations of the cytoplasm & nucleus?
Answer:
Explanation:
Plant Cells have a membrane bound nucleus and this is commonly found in eukaryotic cell. The nucleus allows envelopes the DNA (Deoxyribonucleic acid). They also contain a cell wall and central vacuole that holds water and pushes the nucleus towards the cell wall.
cells have a membrane bound nucleus, it helps in maintaining the activities of the cell and also contain the genetic material DNA
The cytoplasm of a plant cell is located within the cell membrane of the cell and it also envelopes other organelles such as the golgi bodies and endoplasmic reticulum. It helps regulate cell metabolic activity because of the organelles located within it and also help with movement inside of the membrane.
As a part of the nitrogen cycle, animals acquire animo acids by doing which of the following?
A.Breathing air
B. Eating plants
C. Drinking water
D. Producing waste vs
Answer:
Eating plants.
Hope this helps :)
Explanation:
Electrons in the outermost energy level are called
A) Outer Electrons
B) Neutrons
C) Valence Electrons
D) Negative Electrons
What is a mutation? Are mutations always harmful? Always helpful? Explain
Answer: In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA.
Which is true about pluto?
Answer:
I believe it’s A
Explanation:
Answer: Pluto is a dwarf planet but at one time back in the day it was a planet but scientifically it is a dwarf planet. mvemjsun and then back in the day Pluto would be added to the list by p but its a dwarf planet.
mercury, Venus, earth, mars, Jupiter, Saturn, Uranus, Neptune
fun fact Poseidon in Greek mythology is Neptune as his birth planet
Explanation:
so it a common topic when it comes to planets because it leads into scientists and theories.
HELP I DONT UNDERSTAND I WILL CRY THIS IS SO STRESSFUL
Answer:
number one
Explanation:
please vote brainliest
10. What factors can affect the activity of an enzyme?
Answer: Temperature and PH
Explanation:
Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.
Hope it helps!
Select ALL the correct answers.
Which statements are true regarding an energy pyramid?
The number of producers is greater than the number of primary consumers.
The amount of energy at the primary consumer level is greater than the amount of energy at the secondary consumer level.
The number of primary consumers is less than the number of secondary consumers.
The amount of energy at the producer level is less than the amount of energy at the primary consumer level.
Answer:
The other answer is WRONG. The right answer is: "The number of producers is greater than the number of primary consumers" AND, "The amount of energy at the primary consumer level is greater than the amount of energy at the secondary consumer level."
Brainliest?
Answer:
The number of producers is greater than the number of primary consumers.
The amount of energy at the primary consumer level is greater than the amount of energy at the secondary consumer level.
Explanation:
19. Changing nitrogen gas into a more reactive form (so organisms can
use it) is called:
A. Denitrification
B. Nitrogen fixation
C. Nitrification
D. Decomposition
Explain how stomata on the surface of leaves control the exchange of carbon dioxide and oxygen and limit the loss of water vapor during photosynthesis
Answer:
The role of stomata in photosynthesis is the tiny pores control the entrance of carbon dioxide and the exit of oxygen and water vapor. stomata function to control the rate of photosynthesis.
Explanation:
ASAP PLEASE!!
On a branching chart showing the evolution of species overtime, what does each branch represent?
A. a species dying off or becoming extinct
b. a species moving from one location to another
c. a species breaking off into two separate species
d. a species facing new competition in his habitat
Answer:
A
Explanation:
It shows a species dying off or becoming extinct to move over for the next new species. :)
Answer:i think it’s d
Explanation:
A forest area is cleared and replaced with a parking lot. Over several years, water quality in this area will likely be harmed most by –
A. Decreased water flow in streams
B. Increased sediments in runoff water
C. Increased oil products in groundwater
D. Decreased animal waste
Answer:
A.
Explanation:
The nutrients the forest trees give are taken away and an entire ecosystem is gone. Rivers and Lakes are usually big enough or fast enough to clear the water from gravel, waste, and other products. The water area's population of animals are constricted and they lose numbers to predator's and more waste. The waste most likely comes from the building that the parking lot is from. So slower water flow means the waste is caught and stays which kills the population of fish.
what is the function of cellulose in a plant cell?
a strengthening substance for the cell wall
a nutrient to help plants grow
an enzyme used during photosynthesis
a molecule that enhance the green color of a plant
Answer:
a strengthening substance for the cell wall
Explanation:
Cellulose is a major component of cell walls that and is what makes plant stems, leaves, and branches so strong.
Also, I took the test.
The function of cellulose in a plant cell is a strengthening substance for the cell wall. (Option A)
How does cellulose play this role?Cellulose plays a crucial role in plant cells as a strengthening substance for the cell wall.
It is a complex carbohydrate made up of long chains of glucose molecules, forming a rigid structure.
Cellulose provides structural support to plant cells, allowing them to maintain their shape and resist mechanical stress. It contributes to the rigidity and strength of the cell wall, enabling plants to grow upright and withstand external pressures.
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Which topic is most likely to be studied by a botanist?
insect metamorphosis
viral replication
plant growth
animal physiology
Answer:
plants
Explanation:
it is a study of the various species of plants in the climates and conditions ends with free grow and develop properly
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Answer:
thats me :)
Explanation:
Answer:
...
Explanation:
frequency refers to how fast waves are made.From the noises of the alligator and the frog , which aspect of sound is related to frequency? where have you heard about this aspect of sound in your own experience?? (asap _)
Answer: The pitch
For example, a high pitch sound corresponds to a high frequency sound wave, while a low pitch sound corresponds to a low frequency sound wave.
In terms of pitch in a real-life example, we can relate this to singers. A singer with a high voice is called a Soprano. In contrast, a singer with a low voice is called an Alto.
Hope this helps!
The pitch
Explanation:
Can someone please help me I really need help thank you
Answer:
The Circulatory System
A wall of muscle separates the hearth into two parts called chambers. Both chambers work at the same time and act like pumps. Each chamber has an upper part called the atrium ans a lower part called the ventricle. The right pump sends oxygen-poor blood and carbon dioxide-rich blood to the lungs.
In the lungs, the blood gets rid of the carbon dioxide and takes on a fresh supply of oxygen. The blood with carbon dioxide is bluish in color and the blood with oxygen is bright red.
The left pump receives the bright red blood from the lungs and send it to all parts of the body trough the main blood vessel called the aorta. This complete the pumping cycle.
Explanation:
The human heart has two main chambers, divided into two parts, responsible for the distribution of blood in the circuits known as major and minor circulation.
The major circulation involves the route that the blood, pumped by the heart, takes through the whole body, carrying the oxygen-rich blood —arterial with red blood— through the arteries, to then return as non-oxygenated or venous —bluish— blood through the veins, reaching the heart again. The minor circulation goes from the heart to the lungs and from these to the heart. The right ventricle sends the venous blood through the pulmonary arteries to the lungs, and returns through the pulmonary veins to the heart.A resume of the complete path of the blood in the body is :
The blood reaches the right atrium through the vena cava, enters the right ventricle and from there goes to the lungs, through the pulmonary arteries, the only arteries that carry venous blood.
The lungs send the blood to the left atrium, through the pulmonary veins —the only ones that carry arterial blood— it goes into the left ventricle and from there it is pumped to the whole body through the aorta artery, which distributes it throughout the arterial tree.
Name the 3 states of energy from greatest to least energy.
Answer:
Solid particles have the least amount of energy, and gas particles have the greatest amount of energy.
Explanation: