Answer:
The cell membrane
Explanation:
The cell membrane, sometimes also known as the plasma membrane, serves as a clear boundary between the inside of a cell and its outer environment.
How many types of nucleotides are in DNA, and how do they differ?
There are four different types of nucleotides in DNA, and they differ from one another by the type of base that is present: adenine (A), thymine (T), guanine (G), and cytosine (C). A base on one of the chains that makes up DNA is chemically bonded to a base on the other chain.
Answer:
Nucleotides in DNA contain four different nitrogenous bases: Thymine, Cytosine, Adenine, or Guanine. ... Pyrimidines: Cytosine and Thymine each have a single six-member ring. Purines: Guanine and Adenine each have a double ring made up of a five-atom ring attached by one side to a six-atom ring.
Trees are an important source of food for humans and other organisms.
Please select the best answer from the choices provided
✓ Т
x F
The answer is A. True
Answer:
this is true
Explanation:
Humans get fruit from trees
The premise behind energy efficiency methods is that consumers will pay more in return for using less energy, both people and other animals rely on trees as a source of food, hence it is true.
How did trees use as a source of food?The earth provides nutrients and water to the roots, water travels up the stem to the leaves, where it combines with sunshine, carbon dioxide, and carbon to create food.
Trees directly produce a range of nutritious foods, such as fruits, leafy vegetables, nuts, seeds, and
Additionally, a broader variety of edible plants, fungi, bushmeat, fish, and insects may be found in forests.
Therefore, trees use as a source of food for humans and other organisms.
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Why does a compressed air can become extremly cold when you use it?
Answer:
The reason the compressed air gets cold after being used is due to a process known as adiabatic cooling, a property of thermodynamics. A gas, initially at high pressure, cools significantly when that pressure is released. The compression needed to turn a gas to liquid allows a large amount of gas to fit in a relatively small space, and when that gas is released to a large space, it rapidly expands to fill the space.
Which microscope part is used in both the electron microscope and the light microscope?
Answer:
compound microscope and stereo microscope
Why is short-term environmental change more likely to negatively affect a population than a long-term change?
Short-term environmental changes have negative effects because they cause damage to lives, resources, the economy, and the normal living conditions of people.
What are short-term environmental changes?Short-term environmental changes are those that happen quickly and are more dangerous than long-term changes like floods or events that cause migration, therefore they have a big impact on the population.
A hurricane, for instance, is a short-term event because it only lasts a few hours to a full day. Even while climate change is a long-term issue, it is not currently damaging.
Therefore, a population is more likely to suffer from a short-term environmental change than a long-term one. Because a temporary shift in the environment is typically more harmful.
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HELPPPP MME PLSS I need help
Answer:
b
Explanation:
Please hurry thank you!Which of the following is an organic molecule?
A.fructose
B. Nitrogen gas
C.water
D.hydrogen sulfide
Answer:
A. fructose
Explanation:
Organic molecules are molecules with carbon in it. Fructose is the only molecule with carbon. It has the molecular formula C6H12O6.
One of the roles of ecological succession is to allow species with different adaptations to interact. Ecological succession occurs in stages, providing periods of what A overlap only for species that migrate. B separation only for species that do not migrate. C separation for all species. D overlap for a variety of species.
Answer:
D overlap for a variety of species.
Explanation:
During ecological succession, a sequence of changes occurs in a community at a temporal and spatial level. Local colonizations and extinctions occur while ecosystems evolve at a more complex level.
Ecological succession occurs in stages. The first stages are represented by communities of simple trophic levels and few species. With time, as the communities go through different stages, they transform into more complex ecosystems, that are much richer in diversity, and showing more interaction among the different species that compose it. The final stage is known as the climax and represents a mature and stable system.
While the community is going through these changes, many species get extinct while many others get to emerge and survive. It occurs overlapping of different taxonomic groups that interact with each other competing or beneficiating other groups.
Explain why it is important to monitor the carrying capacity of ecosystems.
Please give me a 9th grader great response !!!
Help asap
Answer:
The carrying capacity is a measure of how many individuals can a given ecosystem provide for. An individual and its population is dependent on various components of its ecosystem for necessities such as food, habitat, etc. An ecosystem can only successfully support a given population.
Explanation:
During cell division, ___________ move the chromosomes.
Answer:
Kinetochore and Mitotic Spindle
Explanation:
During prometaphase, mitotic spindle microtubules from opposite poles attach to each sister chromatid at the kinetochore. In anaphase, the connection between the sister chromatids breaks down and the microtubules pull the chromosomes toward opposite poles.
plz mark me as the brainiest
can a WILD panther eat a COOKED egg
Answer:
yes
Explanation:food is food.as long as a panther has food infront of it. it will eat
Neurons are the building blocks of the nervous system. They process and transmit signals. In a neuron, the: 1a) cell membrane 1b)myelin sheath 1c)nucleus -----inside the----- 2a)axon 2b)cell body 2c)dendrite
Answer: 1c) nucleus -> 2b) cell body;
1b) myelin sheath -> 2a) axon
1a) cell membrane -> 2c) dendrite
Explanation: Neurons are the main unit, the cells, of the nervous system. It consists of 3 parts: cell body, dendrites and axon.
Cell body contains nucleus and citoplasm.
An axon extends from the cell body and ends at nerve terminals. Some axons are covered with myelin sheath, because it accelerates the passage of the electrical signal.
A dendrite is an extension of cell body and it is "the one" which receives the message from other neurons. It is formed of cell membrane.
Scientist work to answer questions about _________ and __________ things in the natural world work.
Answer:
1. Living
2. Non-living
Explanation:
Science is a general term that defines a means of understanding the world around us, at its natural state, involving both living things and non-living things. In other words, science is the systematic study of living things and non-living things.
Hence, in this case, the correct answer is Scientists work to answer questions about LIVING and NON-LIVING things in the natural world work.
Answer:
living and non-living
Explanation:
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help plzzz 2 more will mark brainlest. Changes to abiotic factors in an environment can impact biotic factors. Climate change may be reducing the amount of ice floating on the world’s oceans. How can this change MOST likely alter the food supply available to marine consumer organisms?
Answer: Here are three reasons if they don't help just tell me.
1. Changes in water temperature can affect the environments where fish, shellfish, and other marine species live. As climate change causes the oceans to become warmer year-round, populations of some species may adapt by shifting toward cooler areas. Oceans are becoming more acidic. 2. Oceans are becoming more acidic. The acidity of seawater is increasing as a direct result of increasing carbon dioxide levels in the air from human activities, like burning fossil fuels. Concentrations of carbon dioxide are higher than in the last 800,000 years. Carbon dioxide dissolves in water, changing seawater chemistry and decreasing pH (making seawater more acidic). The ocean’s increased acidity results in thinner shells and more shellfish die as they become easier for predators to eat. 3. More severe storms and precipitation can pollute coastal waters. Warmer oceans increase the amount of water that evaporates into the air. When more moisture-laden air moves over land or converges into a storm system, it can produce more intense precipitation—for example, heavier rainstorms. Heavy rain in coastal areas can lead to increases in runoff and flooding, impairing water quality as pollutants on land wash into water bodies. Some coastal areas, such as the Gulf of Mexico and the Chesapeake Bay, are already experiencing “dead zones” – areas where water is depleted of oxygen because of pollution from agricultural fertilizers, delivered by runoff. The phrase “dead zone” comes from the lack of life – including fish – in these waters.
_____is the death of a species or larger classification category.
Answer:
Extinction is the death of a species or classification category
1. Living things carry out the chemical activities of life by using
a. energy
b. sexual reproduction.
c. DNA.
d. stimuli.
I
2. Which of the following statements about living things is true?
a. Living things never develop or change as they grow.
b. All living things produce offspring by sexual reproduction.
c. All living things grow ing parts of their lives.
d. Living things can survive without maintaining homeostasis
Question 1. A
Question 2. C
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The plasma membrane separates the __________ from the _________
Answer:
cell from environment
Explanation:
Answer:
The membrane separates the extracellular space, outside of the cell, from the cytosol inside the cell.
Explanation:
Which is one of the six fundamental elements that are found in living organisms?
helium
sodium
oxygen
chlorine
Answer:
Oxygen
Explanation:
E2020
Fundamental elements make the water, air, fire, and earth. Oxygen is one of the six fundamental elements found in living organisms. Thus, option c is correct.
What is the role of oxygen in living organisms?Oxygen is one of the fundamental elements that make the living cell and is essential for aerobic organisms. It is the most crucial element involved in survival, growth, development, reproduction, etc.
It is a vital component of the respiratory, breathing, and the photosynthetic system as it is required as the substrate to produce energy. Oxygen allows the cells to break the sugar into ATP and NADPH molecules.
It is also an important element in circulation to provide energy to the brain and immune cells. It is involved in almost all activities of the living cell.
Therefore, oxygen is the fundamental element for living organisms.
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which provide long-term energy storage
Answer:
batterys
Explanation:
75 POINTS!!!!!!!!!!!
Answer: Maps with scale, compass and astrolabe, GIS, internet
Explanation:
Answer:
Maps with scale, compass and astrolabe, GIS, internet
Explanation:
Which of the following is critical in developing a scientific
question?
A - basing the question on an observation
B - ensuring that the question is totally original
C - developing a question that is not testable
D - making sure the question is easily answerable
Answer:
The correct answer is option B - "ensuring that the question is totally original".
Explanation:
Novelty is one of the basis of any scientific research. The role of a scientist is to observe physical and biological phenomena, ask questions about what she or he observes and perform researches to answer these questions. Additionally all scientist must ensure that the questions she or he asks are totally original in order to avoid expending resources in a research that has already done before.
How can we know whether a tree is alive or not?
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One of the best ways to determine if a tree or any plant is dead is the tree scratch test. Just beneath the dry, outer layer of bark in a tree's trunk lies the cambium layer of bark. In a living tree, this is green; in a dead tree, it is brown and dry
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based on their scientific names one can tell that the big cats panthera tigris panthera leo panthera onca and panthera pardus do not belong to
the same what
Answer:
The correct answer is - species.
Explanation:
Panthera is a genus that includes the big cats that belong to the family Felidae known for the biggest cats or spotted cats such as jaguar, leopard, cheetah, and others.
Scientific names of any organism are made up of two components one is the genus (the first part) and the last part known as the species of an organism. So, if the genus name is common the species name is different which means they belong to the same genus but different species.
Thus, the correct answer is - species.
How do a cell’s specialized structures relate to its function?
Answer:
cells have many structures in them which can also be called organelles
Explanation:
these organelles are like the organs of humans
each organelles have their own function
they help the cell to stay alive
A specialized cell has distinct structures that allow it to perform its function in the body.
What is a cell?Cell is the basic structural, functional and fundamental unit of life, that performs various functions inside the body.
Each cell has their own certain functions that they perform, like immune cells have the function of protection, blood cells functions as carrier, etc.
Thus, specialized cells have specialized functions in the body.
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What are mesopredators
Answer:
a mid-ranking predator in the middle of a trophic level, which typically preys on smaller animals. mesopredators often vary in ecosystems depending on the food web.
Explanation:
3
What is 6 x 10^6 in standard notation?
A
66
B 6,000,000
С
600,000
Activate
D
0.000006
Answer:
B or C
Explanation:
Which of the following is not a characteristic of life?
The ability to obtain and use energy
The ability to respond to the environment or stimuli
The ability to move
The ability to reproduce
How many molecules of water are made in maltose molecules?
Explanation:
6.022 × 1023 Water Molecules Is The Answer
I am located superior to the genital region, inferior to the pectoral region, medial and anterior to the lumbar region. I am superficial and found in the umbilical region.
What body part am I?
Answer:
I believe it is the navel/belly button.
Describe the level of organization of life
Explanation:
The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
