Breathing is a coordinated effort of respiratory organs to A. receive nitrogen. B. receive carbon dioxide. C. eliminate oxygen. D. receive oxygen
Answer: D. receive oxygen
Explanation: Breathing is a coordinated effort of various respiratory system organs to receive oxygen and eliminate carbon dioxide. The cardiovascular system works in coordination with the respiratory system to receive oxygen into the blood and remove carbon dioxide out of the blood... PF
Breathing is a coordinated effort of respiratory organs to receive oxygen.
What is Breathing?Breathing (or ventilation) is the process of moving air into and from the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
All aerobic creatures need oxygen for cellular respiration, which extracts energy from the reaction of oxygen with molecules derived from food and produces carbon dioxide as a waste product.
The breathing of all vertebrates with lungs consists of repetitive cycles of inhalation and exhalation through a highly branched system of tubes or airways which lead from the nose to the alveoli.
Therefore, Breathing is a coordinated effort of respiratory organs to receive oxygen.
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describe two important ways that marine ecosystem impact the planet
what is true of intercellular signals that do not go through direct connections between cells such as gap junctions? (A.They either match up with a receptor molecule on the surface of the cell or enter the cell through the membrane) (B. The carbohydrate tag is interpreted in the ribosomes, and the signal is passed on to the nucleus of the cell) (C. They connect with another cell part such as the Golgi apparatus, where hormones interpret the signal) (D. They connect with an adjacent cell where an ion linked receptor carries them into the nucleus)
The correct answer is option A. They either match up with a receptor molecule on the surface of the cell or enter the cell through the membrane.
The intercellular signals are the signals, which transfer the signals from one cell to the another and the intracellular signals are those signals, which carries message within the cell.
The intercellular signals may or may not be transferred through the gap junctions. The chemical signals are one of the type of the cell signals. The chemical signalling molecules generally have a receptor on the cells, where these molecules can bind and can be cause the activation of the cell. The chemical signals can also enter into the cells through active transport and facilitated diffusion. So, these type of transports does not go through the Gap junction.
The answer to your question is:
They either match up with a receptor molecule on the surface of the cell or enter the cell through the membrane.
Hope this helps....................
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which statement accurately describes natural selection
Answer:
Evolution works independently of natural selection
Organisms best suited for environment survive and reproduce statement accurately describes natural selection
Explanation:
Natural Selection: Organism adapts itself to the particular environment to survive and reproduce.
The theory of Natural selection was popularized by Charles Darwin. He explained that organisms evolved, they can survive when they get adapted better to the environment.
Natural selection is also called the'' survival of the fittest''. The organism which gets adapted to the environment will survive.
The more desirable characteristic will pass from parents to offspring.
What is the difference between a habitat and an ecosystem?
A habitat is the place where a plant or animal lives. All living things have adaptations that help them survive in their habitats. For example, plants and animals can only live in habitats that meet their needs.
An ecosystem is a group of animals and plants and their physical environment. Coral reefs are underwater ecosystems. Coral reefs are made from skeletons of tiny creatures. Deserts are also ecosystems and they get dry weather and very little rain.
how do organelles contribute to efficiency in eukaryotic cells
Is osteoporosis a spell in Harry Potter?
No its a medical condition
Which of the following reasons best explains why a scientist would want to use Charles Darwin's ideas on natural selection to study which traits are most beneficial to genetically altered mice?
Classify these animals into 2 groups- then classify the two groups into two more. I will give 76 points for best answer.
You've already got the answer
which of the following is a function of a vacuole?
A packaging of materials
B transport of materials
C storage of materials
D breakdown of materials
Which organelles of a cell possess their own DNA?
lysosomes and plasma membrane
mitochondria and chloroplasts
the Golgi apparatus and ribosomes
What was the purpose of including a quadrant to which no lysozyme was added?
How do invasive species change the diversity index?
Answer:
The diversity index is defined as the measure of diversity that describes the number of species that is present and also the relative abundance of individual species.
The invasive species are those species that are dominant in character and their presence can cause a negative impact on the ecosystem. They have the ability to create dis-balance in an ecosystem. For example, Asian Carp, European Starling, and Water hyacinth.
An increase in the number of invasive species leads to a decrease in the diversity index. This species can alter the food web within an ecosystem by eliminating the local food sources leaving no food for the faunas.
Thus, these species must be kept under control in order to maintain a favorable condition for the other species to exist in an ecosystem.
lipid is one of the major classes of biomolecules needed by the body. The body breaks down the lipids that we consume to create blank and blank
Answer:
The correct answer will be- fatty acid chains and glycerol molecule.
Explanation:
Lipids are the biomolecules also known as triglycerides. The lipids get hydrolyzed to provide energy to the body through the process of lipolysis which takes place in the cytoplasm.
The triglycerides on breakdown form the two components, fatty acids and glycerol in which fatty acid undergo β-oxidation and gets converted to acetyl CoA whereas the glycerol directly enters in the glycolysis pathway as DHAP. The lipolysis provides high energy to the body.
Thus, fatty acid chains and glycerol molecule is the correct answer.
Which type of rock does B represent?
A)Igneous rock
B)Metamorphic rock
C)Rock formed by compaction
D)Rock formed by heat and pressure
Desperate I need help.
Which physical evidence supports the theory that all continents were once together and have separated over time?
Common marine animal fossils found in various continents
Matching coastlines of Africa and South America
That most earthquakes occur along a plate boundary
Oceanic ridge near a divergent plate boundary
Which macromolecules were present in the unknown solution? In the milk? Answer:
These macromolecules might either be amino acids, proteins or nucleic acids. They are accountable for the chemical changes and reactions that moves largely the cell and its composition. Take for example the cytoplasm of the cell where these organelles are settled. These simple organelles are composed of macromolecules which ignites and catalysis different functions that enables cells, in macro-perspective in motion and metabolism. In intestines for instance, metabolism occurs and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.
Which is an advantage of sexual reproduction over asexual reproduction?
A) increased number of organisms and decreased genetic variation
B) increased genetic variation
C) doesn’t require an organism to find a mate
D) decreased genetic variation
E) decreased genetic variation and decreased number of organisms
Increased genetic variation is an advantage of reproduction. thus option B is correct.
What is genetic variation?There must be some evolutionary means by which existing DNA sequences are changed and new sequences are incorporated into the gene pools of species is called genetic variation.
It increases chances of survival in the living organisms as some of the variations are acquired genetically due to change in segregation of chromosome during reproduction or due to adaptations these changes will increase the chances of survival of the organism is unfavorable conditions.
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how do constructive and destructive forces contribute to the rock cycle
Snails and insects belong to which group of organisms?
Answer:
Invertebrate
Explanation:
Snails and insects belong to a group organisms referred to as invertebrate due to the absence of backbone (vertebral column).
Tentacles can sting predators. What other functions do tentacles have? Choose all answers that apply. A. to bring oxygen into the cnidarian's body B. to aid reproduction C. to communicate with other cnidarians D. to capture food
what is the biological importance of the polarity of water?
solve:
6 more than X is equal to 33
Question:
6 more than X is equal to 33
Answer:
x = 27
Filters and settling tanks remove solid materials from wastewater during the ____________ treatment step ?
How is mitochondria form?
In what regions of the world is habitat loss most rapid?
Final answer:
Habitat loss is most rapid in regions with high human population density, coastal areas, and expanding agriculture regions. The most affected ecosystems are islands, coastal areas, wetlands, and tropical rainforests.
Explanation:
Habitat loss is most rapid in regions with high human population density such as Europe, North America, Asia, the Middle East, Africa, Central America, and the Caribbean. Coastal areas in Asia, Europe, and North America have also experienced severe habitat loss.
The most affected ecosystems include islands, coastal areas, wetlands, regions with large or growing human populations, and emerging agricultural frontiers. Habitat loss has been particularly high in Mediterranean forests, temperate forests, and tropical rainforests.
In addition, areas with limited human densities but expanding agriculture, like the Amazon and parts of Southeast Asia, are experiencing rapid habitat destruction.
two reasons why interdisciplinary science is important to society
The reason why interdisciplinary science is important to society is because of the following reasons; It has incorporate sources of knowledge and it is a way of increasing our knowledge. This science has made people realize and learn more things than they actually know and it made people understand things around them without having to actually think an explanation behind it.
Equal arm balances are used to measure:
a.mass
b.weight
c.density
d.force
i believe it is a mass
Use the Density Equation to solve the problems. Equation: Density = mass or D = m Volume V A block of wood has a density of 0.6 g/cm3 and a volume of 1.2 cm3. What is the mass of the block of wood? Question 2 options: 8.2 g 1.5 g 2.2 g 0.72 g
how do temperature and pH affect the activity of the enzyme
Enzyme activity is highly dependent on temperature and pH. Optimal temperature for human enzymes is usually around 37 degrees Celsius, and deviations can lead to decreased activity or denaturation. Similarly, each enzyme has an optimal pH range, with performance dropping off outside this range due to structure-altering changes in H+ concentration.
The activity of enzymes is greatly influenced by changes in temperature and pH. At their optimal temperature, usually around 37°C for human enzymes, they perform at their peak. Deviation from this temperature can lead to a decrease in activity. High temperatures may cause denaturation, changing the enzyme's structure and preventing substrate binding. Conversely, low temperatures reduce kinetic energy, slowing down reactions.
pH also plays a crucial role in enzyme function. Each enzyme has an optimal pH range where it performs best. For example, enzymes in the stomach, like pepsin, work effectively at a low pH due to the acidic environment. On the flip side, enzymes like trypsin operate in the basic environment of the small intestine. Should an enzyme's environment fall outside its pH range, the change in H+ concentration can alter the enzyme's structure and reduce its activity or even result in denaturation.
Understanding these conditions is critical because enzymes rely on their 3-dimensional shape to function. The noncovalent interactions, such as ionic bonds and hydrogen bonds, that maintain their shape are sensitive to changes in temperature and pH, which can disrupt these forces and the enzyme's activity.