Answer:
B. many different elements
Explanation:
A carbon atom can form covalent bonds with other carbon atoms or with the atoms of other elements.
What is the difference between ecosystem and species?
Answer:
An ecosystem is a collection of species living together in a given environment.
Vascular resistance is due to friction between blood and the walls of the blood vessel. Which of the following causes low vascular resistance?
O obesity
O dehydration
O high blood pressure
o cholesterol levels within normal range
The factor that does not lead to a high vascular resistance is cholesterol levels within normal range.
What is vascular resistance?The term vascular resistance refers to a situation in which blood finds it difficult to pass through the blood vessels. A lot of factors may lead to this such as the constriction of the blood vessels owing to high cholesterol levels.
From the options that we have in the question, the factor that does not lead to a high vascular resistance is cholesterol levels within normal range.
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8. For the food chain shown below, which of the following changes would 2 points
have the most severe consequences? Grasses - Crickets → Field Mice →
Hawks
A minor decrease in rainfall
The field mice population slightly increasing
The introduction of a second predator that eats field mice
0 A parasitic infestation that reduces the cricket population
Answer:
I think it is A Parasitic one
Explanation:
A decrease in rainfall may lead to drought, thereby altering the basis (first level) of the food web.
A food web is a diagram that represents the relationships between different groups of organisms in an ecosystem.Producers (e.g., plants) are organisms that maintain the entry of matter and energy to the food web.Rainfall is fundamental for maintaining the life of land producers (in this case, grasses) in the food web.In conclusion, a decrease in rainfall may lead to drought, thereby altering the basis (first level) of the food web.
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What is an advantage to being ectothermic?
Question 18 options:
Ectothermic animals require much less energy to survive than endothermic animals.
Ectothermic animals can sleep longer than endothermic animals.
Ectothermic animals always live longer than endothermic animals.
Ectothermic animals can live in a greater number of environments than endothermic animals.
Answer:
more environments and i think they require less energy... but more environments for sure
Explanation:
Which of the following factors would best contribute to a measurement of environmental quality?
Average temperature
Water clarity
Salinity levels
Average speed of sound
Answer:
water clarity
Explanation:
The factor that will best contribute to the measurement of environmental quality is : ( B ) Water clarity
What is water clarity ?Water clarity shows how far light can penetrate a water body. A very clear water in an environment shows that the water bodies contain little or no suspended soil particles.
Very clear water found in a environment represents a very high quality of live in the environment and can be used to measure the environmental quality.
Hence we can conclude that The factor that will best contribute to the measurement of environmental quality is : ( B ) Water clarity
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what are three things that an ecological pyramid shows that food webs
and food chains do not show.
Answer:
An ecological pyramid shows energy flowing through different ecosystems, the amount of energy that is being passed down, and the amount of organisms.
Explanation:
The three things that are not displayed by food chain and food web but showed by ecological pyramid are;
Energy flowing through different ecosystems.
Amount of organisms.
Amount of energy that is being passed down.
An ecological pyramid can be regarded as graphical representation that display relationship between different organisms in an ecosystem.The trophic levels in this ecological pyramid contains amount of organisms as well as mass which is biomass and the amount of energy that can be found in each level.Therefore, it shows the energy flowing through different ecosystems.
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What is a Protein Made of?
pls, explain
don´t copy and paste of
what googlle
said plsssssss
Answer:
The correct answer is - amino acids.
Explanation:
Proteins are made up of amino acids by linking together by the peptide bonds therefore the building blocks of the proteins are amino acids and due to amino acids linked together by peptide bond they called polypeptide chain;
Amino acids are small organic molecules form by the process translation and have a central carbon atom with an amino -NH group, a hydrogen atom, a carboxyl group -COOH, and a side chain.
What Rh Factor? Why is it important?
Explanation:
The Rh factor is one of the proteins on RBCs used to indicate whether the blood of two different people is compatible when mixed – such as blood of a mother and her baby at birth.
It is routine and important that the Rh factor for a mother and unborn child be determined during pregnancy.
Hope this is what you wanted.
Which of these statements about fungi are true?
Answer: where are your statements
Explanation:
A. Mutualism
B.Commensalism
C.Parasitism
D.Predation
Answer:
D.Predation
Explanation:
Living organism interact with one another in their natural environment. The interaction of two organisms is called SYMBIOSIS. Symbiosis, however, can be of different types depending on how the organisms relate. One type of symbiotic relationship between organisms is called PREDATION.
Predation is a relationship between two organism in which one organism called PREDATOR kills and feeds on the other organism called PREY in order to obtain energy. In this question, a Manta Ray and a zooplankton is shown.
The Manta ray is described as an aquatic organism that feeds on tiny species like fishes while the zooplankton is a tiny organism found in water bodies. The Manta Ray is the predator that kills and feeds on the zooplankton, hence, the relationship is a PREDATION.
How is the information from the stimuli communicated to the brain? WILL GIVE BRAINLIEST IF RIGHT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Sensory receptor interact with stimuli, such as light sound temperature and pain which is transformed into the code that is carried to the brain by the chain of neurons. Once the signal reaches he end of an axon, which is at the end of neuron, a neurotransmitter is released and the process repeats.
Answer:
Your body perceives the stimuli the brain recognizes the mind decides how the body will deal with the stimuli
Explanation:
Identify which European nations were successful in trading with Japan before the 1800’s.
PLEASE HELP I WILL GIVE BRAINLIEST
Why is it important for the brain to be so well protected?
Answer: It controls hunger and thirst and some of the most basic body functions, such as body temperature, blood pressure, and breathing. The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid.
Explanation:
Which of the following is most likely to happen if data from a scientific
experiment are collected improperly?
O A. The hypothesis will be disproved.
B. The scientist will be discredited.
C. New discoveries will be made.
D. The conclusions will be inaccurate.
What advancements helped Earth’s human population to grow so quickly?
Explanation:
human have increased the world's carrying capacity through migration agriculture Medical advances and Communications. the age structure of a population allows us to predict population growth.unchecked human population could have dire long term effects on our environment.
4. Which is not a common poison?
Answer:
Do you have the options?
please help!!!! will give brainliest
Answer:
1.isotonic
2.hypertonic
3.hypotonic
4. active transport
5. passive transport
6.diffusion
7.osmosis
8.solute
9. solvent
Explanation:
the best answer and I hope it will help you
Who came up with the theory of continental drift? Was his theory originally accepted by
the scientific community?
Answer:
scientist Alfred Wegener and no it wasn't accepted .
Explanation:
The main reason that Wegener's hypothesis was not accepted was because he suggested no mechanism for moving the continents. He thought the force of Earth's spin was sufficient to cause continents to move, but geologists knew that rocks are too strong for this to be true. Hope it helps :) , please mark as the brainliest answer .
how does a chemical equation differ from a mathematical equation?
Answer: Chemical equations are different from mathematical equations because the two parts of a chemical reaction represent the 'before' and 'after' of a chemical reaction. In mathematical equations, an equals sign separates the two parts of the equation. In chemical equations, equal signs are not used
Explanation: hope this helps :D (he disconnected)
Lymph is another medium of circulation in the human body. justify
Answer:
Yes, Lymph is another medium of circulation in the human body
Explanation:
Yes, Lymph is another medium of circulation in the human body. Lymph is part of lymphatic system which in turn is part of the circulatory system. The lymphatic circulatory system comprises of lymphatic vessels which carry clear fluid "lymph" towards the heart. The flow however is unidirectional
Need help with this question, I give branliest :)
Answer:
Your Answer is A I believe
what is an indicator of soil?
A gene mutation changes a section of DNA whereas a Chromosome mutation changes a base.
True
or
False
Answer:
I think true as then it wouldn't make sense making it a mutatuon.
1.
2.
Which process is represented
inside the dashed circle?
A. Evapotranspiratio
n
B. Precipitation
C. Runoft
Infiltration
After clouds are formed through condensation, what process can
happen next?
A. Evapotranspiration
B. Precipitation
C. Runoff
D. Infiltration
Erica notices her bedroom windows have water droplets on them
even though it didn't rain. What is the likely cause?
A. Condensation
B. Infiltration
OUTPUT
C. Sublimation
STATION
D. Evaporation
3.
Answer:
1. D
2. B
3. A
Explanation:
The dashed circle indicates the process of infiltration because the water of precipitation goes inside the soil. Infiltration is the process in which water enters the soil through small opening present on the earth surface. When the clouds are formed, precipitation occurs in the form of rainfall and snowfall. Condensation is a process in which water vapors change into liquid when the environment has low temperature or cool so condensation occurs on the windows of Erica.
When an object is already in motion, why is energy required to stop it
When an object is already in motion then we require force to stop it because due to inertia , a body tends to remain in the state of motion unless an external force acts on it .This is in accordance with Newton's first law of motion or law of inertia of motion.
What is inertia ?Inertia is the tendency of a body to remain the way it is. It opposes any changes to its state of rest or motion.
The more is the mass of the body , the greater will be the inertia.
What is external force?External force is the force applied by external agents on the body.
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To be a possible answer to a scientific question, a hypothesis must be
testable.
unique.
written.
controlled.
Answer:
A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable. This means that researchers must be able to carry out investi- gations and gather evidence that will either support or disprove the hypothesis.
Explanation:
Yuki has a bowl of ice. She places the ice in a warm room and watches as it melts into liquid water. Yuki then places the liquid water over a Bunsen burner and heats it until it vaporizes. Explain what happens to the water molecules in Yuki's experiment; from the beginning to the end of the experiment.
Answer:
ice is a solid.When heat is added it turns into a liquid,its a reversible change.As regarding to the water moleculesWhen water is heated, it expands, or increases in volume. When water increases in volume, it becomes less dense. As water cools, it contracts and decreases in volume. When water decreases in volume, it becomes more dense. For samples of water that have the same mass, warmer water is less dense and colder water is more dense.Im not sure if this helps but try it out :)
Using an example for each, explain the following ecological concepts.
a) Succession
b) Energy flow between trophic levels
c) Limiting factors
Answer:
1-Ecological succession is the process of change in the species structure of an ecological community over time.
2-Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.
3-A limiting factor is a variable of a system that causes a noticeable change in output or another measure of a type of system.
Explanation:
How might the loss of sea ice affect people, animals, or ecosystems?
Answer:
The Global Impacts of Arctic Sea Ice Loss. Some of the most important climate news this winter has been around the alarming lack of sea ice in the Arctic, which has been in decline due to the steady rise in Earth’s average air and ocean temperatures. While suffering polar bears are a poignant symbol of climate change, the effects of disappearing ice extend far beyond the Arctic circle and its inhabitants.
Explanation:
I did the same thing
