Answer:
1. The respiratory system allows us to breathe . They bring oxygen into our body and remove carbon dioxide from the body .
2. Tiny hairs called cilia protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.
3. The throat (pharynx and larynx) is a ring-like muscular tube that acts as the passageway for air, food and liquid. It is located behind the nose and mouth and connects the mouth (oral cavity) and nose to the breathing passages (trachea [windpipe] and lungs) and the esophagus (eating tube).
4. The main function of the epiglottis is to seal off the windpipe during eating, so that food is not accidentally inhaled.
5. The heart pumps blood to the lungs for oxygenation and the lungs then give the heart back oxygen rich blood to be transmitted to the whole body
Explanation:
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Five students get sick with a cold after a weekend field trip to theaquarium with their classmates. Which best explains why these studentsbecame sick?
Answer:
The fish is sick or its cold or people have C O V I D
Explanation:
What are some advantages of being multicellular?
Select all that apply.
ability to live in new environments
greater complexity
larger body size
higher demand for energy
Answer: A, B, & C
A. ability to live in new environments
B. greater complexity
C. higher demand for energy
Explanation:
I need help
A)16
B)9
C)3
D)6
Answer: C) 3
Explanation:
If you work through the punnet square for the two rabbits, only four of the sixteen possibilities has red eyes, and only three of those four has gray fur as well. So, three of the 16 rabbits have gray fur and red eyes.
A large number of________
and the pacific yew tree. *
come from plants, such as willow tree bark
Will mark BRAINLIEST to correct answer
Which of these crimes are felonies? Check all that apply.
A) petty theft
B) murder
C) embezzlement
D) public nuisance
E) burglary
plz help
Answer:
b, e, c
Explanation:
Answer:
murder, embezzlement, burglary
Explanation:
3.What are the functions of vacuoles, lysosomes, and the
cytoskeleton?
Answer:
In plant cells, vacuoles maintain water balance. Lysosomes break down excess or worn-out cell parts. The cytoskeleton is a structure that helps cells maintain their shape and internal organization, and it also provides mechanical support that enables cells to carry out essential functions like division and movement.
Explanation:
Storage, waste disposal and structural support are the functions of vacuoles, lysosomes, and the cytoskeleton.
The following are the roles of vacuoles, lysosomes, and the cytoskeleton: Vacuoles are membrane-bound organelles that can be found in the cells of fungus, protists, and plants. They serve a variety of purposes, such as: Vacuoles have the capacity to store a wide range of materials, including waste materials, pigments, water, and nutrients. They control the osmotic equilibrium and aid in maintaining turgor in plant cells. Vacuoles in plant cells can be used as a storage space for a variety of waste materials and poisons that are damaging to the cell. They keep these molecules apart and stop them from harming other cell components. Support for structure: In plant cells, the huge central vacuoles press on the cell wall to support structure and preserve the form of the cell. Lysosomes are membrane-bound organelles that can be found in cells.
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which type of feature of Earth's crust does the diagram show (A) reverse fault (B) anticline (C) normal fault (D) syncline
its enviromental science
The figure illustrates the anticline of the earth's crust.
The correct option is B.
Anticline definition:A structural trap called an anticline is created when rock layers are folded into the shape of an arch. In an anticlinal trap, the rock layers were initially horizontally stacked until earth movement caused them to fold into such an arch-like structure known as an anticline.
What distinguishes an anticline?Rock formations called anticlines are folded structures with upward convex shapes. This means either anticline resemble a lowercase "n" or an uppercase "A" (remembering the shape of an anticline is as simple as saying "A is for Anticline"). They originate from horizontal and rather flat rock layers.
What is the crust of Earth?The outermost layer of a terrestrial planet is referred to as its "crust." The older, heavier continental crust and the denser, younger oceanic crust make up the majority of the Earth's crust. Plate tectonics provides information about the dynamic geology of the Earth's crust.
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how does greenhouse effect warm the earth?
Answer:
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The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The absorbed energy warms the atmosphere and the surface of the Earth.
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Which of the following is NOT an example of natural selection?
A. Plants with thorns are less likely to be eaten by herbivores than other members of the same species that lack thorns.
B. Bacterial populations in hospitals develop resistance to drugs used to combat infection by them.
C. Scientists breed cows that give greater amounts of milk than their ancestors.
D. Fruit fly larvae with an enzyme to break down alcohol are better able to feed on fermenting fruit than those that lack the enzyme.
Answer:
The correct answer would be - C. Scientists breed cows that give greater amounts of milk than their ancestors
Explanation:
Natural selection is the process of adapting according to the new changes in condition and change accordingly to survive. So the individuals of organisms that are better and adapt faster to survive and reproduce better than others are the result of natural selection.
Plants developed thorns so they can be avoided by predators is the adaption and example of natural selection. Similarly, bacterial populations adapt and develop resistance to the drug. Fruit fly larva developed and adapt as well. Breeding cows for more amount of milk than ancestors by scientists is not natural selection.
The reproductive cells of a dolphin each contain 22 chromosomes. Dolphins produce offspring through sexual reproduction. How many chromosomes will be found in a dolphin's body cells?
Answer: 44 chromosomes
Explanation:
Answer:
"The reproductive cells of a dolphin each contain 22 chromosomes."
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How does cellular respiration provide energy for life processes?
During cellular respiration animal cells combine oxygen with food molecules to release energy to live and function. Remember that cellular respiration produces carbon dioxide as a waste product. Animals use energy to grow, reproduce, and to function. They release the carbon dioxide into the air as a waste product.
describe what is happening to the population of bacteria
Answer:
Bacterial populations employ native defenses against antibiotics that are analogous to the activity of protonophores. These mechanisms disrupt membrane electrochemical gradients that enable bacterial populations to establish subpopulations of drug-tolerant persisters
Explanation:
When we cultured in bacteria by adding growth promoting factors for rapid growth, what happened in this time. At that time bacteria growth/size are increase or both .
Natural selection is sometimes described as "survival of the fittest." Four friends were arguing about what the phrase "survival of the fittest" means. This is what they said: Diya: "I think ‘fit' means bigger and stronger." Ayush: "I think ‘fit' means more likely to reproduce." Daniel: "I think ‘fit' means being able to run faster." Hari: "I think ‘fit' means more intelligent."
Answer:
Ayush is correct.
Ayush: "I think ‘fit' means more likely to reproduce
Explanation:
Survival of the fittest simply means when organisms living in an environment develop traits or characteristics that help them to fully adapt to the environmental conditions and are able to survive, reproduce and pass on traits to their next generations. It's an indication that the organisms posses some characteristics that can help them to survive and reproduce in unfavorable environmental conditions.
Someone please help me quick. I only have TWO minutes to answer this question ♀️
Answer:
1. fertilization
2. gamete
3. cell division
4. ??? (only 3 options??)
I hope this helps you! I know you'll do great!
what is meant by photosynthesis
Explanation:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Answer:
The process by which plants turn carbondioxide and water into carbohydrates and oxygen using light energy trapped by chlorophyll, is called photosynthesis.
A mutation was found in which the DNA sequence changed from 5' CCCGGGAGA 3' to
5' CCCAGA 3' What kind of mutation is this?
O Deletion
O Frame-shift
Insertion
Substitution
Answer:
Deletion beacuse it is missing the GGG
List 5 uses for proteins in the cell.
Answer:
Protein has many roles in your body. It helps repair and build your body’s tissues, allows metabolic reactions to take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance. Finally, they keep your immune system strong, transport and store nutrients and can act as an energy source, if needed.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Proteins help in cell structure formation, and cell transport, allow biochemical reactions, cell repair and also help in cell division.
What are cellular proteins?Proteins present in the cell are of various kinds. They are formed in the cell by the process of DNA transcription and translation.
The proteins formed in the cell then go on to perform various functions. The cellular proteins form the structure of the cell. They do that either by forming the cell membrane or the membrane of the organelles.
The cellular proteins also help in transport of nutrients. This transport is of two types. It can transport materials from inside to outside of the cell and vice versa. It can also transport materials inside the cell to other organelles.
Various biochemical reactions in the cell are possible because of the cellular proteins. The proteins formed in the cell are also used for cell repair and cell division.
Therefore, the various functions performed by the cellular proteins are cell structure formation, cell transport, allowing biochemical reactions, cell repair and help in cell division.
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An organism has control over inherited traits.
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Explanation:
I need to see what answers it give u so I can help
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Invasive species are harmful not because of what they are, but because of
Answer:
What they do
Explanation: People put goldfish in lakes and creeks and ponds they invade the area and eat everything there and the animals that are there they take all the recorses that the other speices need
The coral reef has specific temperatures and sunlight each day, as well as many types of corals and fish that live there. What level of organization is the coral reef?
A. Organism
B. Population
C. Community
D. Ecosystem
Answer: Organisms
Explanation: Shelter, find food, reproduce, and rear their young in provide jobs for local communities, and offer opportunities for recreation. These ecosystems are culturally important to indigenous people
Which of these is an individual effort for saving a habitat? Select all that apply.
A. using fertilizers always
B. establishing more open spaces
C. using too many chemicals
D. establishing new regulations
E. using less fuels
Answer:
B, D and E
Explanation:
answer this one ABC or D
B!
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.Why does the heat radiation given off by the ground increase in the early
afternoon?
Answer:
More Direct Sunlight
Explanation:
The Sun is in the middke of the sky therefore giving more direct sunlight
Which type of organisms eat or break down dead things?
_____ cells send signals quickly throughout the body
muscle
nerve
connective
epithelial
Answer fast
Which two compounds are always together?
a. Oxygen and Water
b. Carbon Dioxide and Glucose
C. Oxygen and Glucose
d. Carbon Dioxide and Solar
Answer:
a. Oxygen and Water
Explanation:
Oxygen and water are a pair and they come together. This is proven by the equation for water which is H2O which contains oxygen.
Oxygen and water compounds are always together. So, the correct option is A.
What are Compounds?A compound is a substance made up of two or more components which are chemically combined in a certain ratio. Chemical bonds hold the elements in a compound together. These bonds can be covalent, ionic, or metallic, according to the characteristics of the elements involved.
Because oxygen is a fundamental component of molecules of water, which have a chemical formula H2O, oxygen and water are frequently found together in nature. Water is required for life as well as many biochemical activities, while oxygen is required for respiration in many species. As a result, oxygen and water are frequently found combined in natural habitats.
Therefore, the correct option is A.
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On the Bahamian island of Andros, mosquitofish populations live in various, now-isolated, freshwater ponds that were once united. Currently, some predator-rich ponds have mosquitofish that can swim in short, fast bursts; other predator-poor ponds have mosquitofish that can swim continuously for a long time. When placed together in the same body of water, the two kinds of female mosquitofish exhibit exclusive breeding preferences. Which type of reproductive isolation operates to keep the mosquitofish isolated, even when fish from different ponds are reunited in the same body of water
Answer:
The correct answer is - Behavioral isolation.
Explanation:
In the question, it is given that the mosquitofish of different habitat shows different behavior as per the availability of predators in the particular habitat. For instance, some mosquitofish can swim continuously for a long time in fewer predators area whereas predator-rich ponds have mosquitofish that can swim in short, fast bursts.
It is evident that they diverged from common species that isolated in different regions, their behavior got changed according to the presence of predators. Thus, the isolation is here, behavioral isolation.
what would happen to the ecosystem in the terrarium if it were a closed system for energy
Answer:
It would mimic the behavior of the earth's atmospheric atmosphere where you have a water cycle and sunlight which aids photosynthesis.
Explanation:
A terrarium is a glass container that can be covered and opened at will. It can be used to grow a plants using soil.
When it is sealed, water evaporates onto the body of the glass and runs down the sides of the glass only to be evaporated again and the same process happens over and over again.
Because the plants are in a glass container, they can still access sunlight for photosynthesis.
Sometimes the glass is opened up for maintenance. Maintenance here refers to the removal of algae that sometimes forms on the inner walls of the terrarium. Sometimes, there is also need to add water to the ecosystem in the terrarium given that the water inside usually escapes via evaporation over time.
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Answer: everything in it would die
Explanation: