Most bacteria are surrounded by a rigid protective structure called the _____.
•cell wall
•cell membrane
•flagellum
•protein coat
Answer:
Most bacteria are surrounded by a rigid protective structure called the cell wall.
Please help me and no file
Explain IN YOUR OWN WORDS why cancer drugs "turn a cancer's weakness against itself."
Answer:
There are several possible reasons for chemotherapy resistance: Some of the cells that are not killed by the chemotherapy mutate (change) and become resistant to the drug. Once they multiply, there may be more resistant cells than cells that are sensitive to the chemotherapy. Gene amplification.
what organelles work together to produce proteins?
A. nucleus and ribosome
B.cell membrane and nucleus
C.mitchondria and ribosomes
D.Mitchinondria and vacuole
Answer: A
Explanation:
The nucleus provides the instructions for making the proteins (the DNA) and the ribosomes are actually where the proteins are made.
Answer:
Explanation:
Option C is the correct answer
What statement about childhood obesity is true?
Obesity can lead to high blood pressure.
Obesity is another word for being overweight.
Obesity is not curable.
Obesity leads to low cholesterol.
Answer:
Obesity can lead to high blood pressure.
Childhood obesity is a severe public health concern that is spreading across the country. Body mass index (BMI) at or above the 95th percentile for kids of the same age and sex is what is referred to as having it. The claims are all accurate.
Obesity can raise the chance of having high blood pressure because it alters the body in ways that enhance that risk. This includes increased blood fat levels, hormonal changes, and an increase in the creation of proteins that can narrow the blood arteries.
Overweight is sometimes referred to as obesity. Body mass index (BMI) at or above the 95th percentile for children is the criterion for this condition.
Learn more about Obesity at:
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Anyone know this? Not sure if my answer is right
Answer:
I'm sure you right.
C.) Photosynthesis.Explanation:
I checked the chemical equation as well as the diagram, and it looks accurate.
The chemical equation for photosynthesis is:
6CO2+6H2O → C6H12O6+6O2.
So your answer is correct.
In plants, photosynthesis is used to convert light energy from sunlight into chemical energy (glucose).
Carbon dioxide, water, and light are used to make glucose and oxygen.
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Good luck foe.
Lb
Woodpeckers and squirrels fight for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna fight for the same antelope and gazelle prey. Which of the following statements about these relationships is accurate?
Answer:
its probably somehting abt competition :)
Explanation:
they fight for a limited resource which is competing
Answer:
These are examples of competition because the organisms are fighting for resources.
Explanation:
They are all fighting for the same things so it would be a competition.
Which three terms relate to sexual reproduction but not to asexual reproduction?
A. Sperm
B. Mitosis
C. Gametes
D. Meiosis
Answer:
I believe its A, C, and D
Explanation:
Which best describes the transfer of energy through food webs?
A. Energy from animals is recycled among herbivores and carnivores.
B. Energy from plants is transferred from decomposers to consumers.
C. Energy from animals is recycled from decomposers to consumers and then to producers.
D. Energy from plants is transferred to consumers, and then from producers and consumers to decomposers.
Answer:
D.
Explanation:
Energy from plants is transferred to consumers and then producers and consumers to decomposers.
Species that evolved in coral reef habitats always stay in those habitats. Coral reefs have much biodiversity, but most species that live there migrated from other habitats. Most organisms that live in coral reef habitats are zooxanthellae. More new species have evolved in coral reef habitats than in most other types of habitats.
Answer:
Most organisms that live in coral reef habitats are zooxanthellae.
Explanation:
zooxanthellae are the single-celled dinoflagellates that lives in mutual relationship with corals, jellyfish, and nudibranchs. These organisms have a mutualistic relationship between zooxanthellae and corals. Coral produces carbon dioxide and water in the process of cellular respiration while on the other hand, the zooxanthellae use this carbon dioxide and water to carry out photosynthesis for making their own food like plants so both the organisms get benefit from one another.
Which gas is released due to photosynthesis?
A Carbon dioxide
B Oxygen
C Nitrogen
D Methance
Answer:
Oxygen
Explanation:
Plants take in Carbon dioxide and releases Oxygen
What is the primary function of leaves? *
A. Gas Exchange
B. Movement of Water
C. Piercing the Ground
D. Cell Respiration
Complete the following sentence.
The more blank structures two species have, the more closely related they may be. the more structures two species have, the more closely related they may be
Answer: Homologous
Explanation: The more Homologous structures two species have, the more closely related they may be.
Which of the following describes an effect of particulate matter on health?
Fine particles are less dangerous, as they mainly affect nasal passages.
Coarse particles are associated with aggravated asthma.
Coarse particles are more dangerous, as they infiltrate deep into the lungs.
Fine particles are associated with decreased lung function.
Answer:Particle pollution and health risks, including premature death. Health effects may include cardiovascular effects such as cardiac arrhythmia´s and heart attacks, and respiratory effects such as asthma attacks and bronchitis.
Explanation:
What are the three functions of the integumentary system?
Answer: protection regulation and sensation
Explanation:
There are three categories, DNA, RNA, or Both
Question: What is used in Translation, Transcription, and Replication?
- Translation - Used in RNA/DNA/Both
- Transcription - Used in RNA/DNA/Both
- Replication - Used by RNA/DNA/Both
PLEASE ANSWER ASAP
Answer:
transcription used dna because the mRNA is built on the DNA template . translation used RNA replication dna
Which sequence represents the normal blood flow in pulmonary circulation?
Show photo of pulmonary circulation
4. There are three codons that signal the end of synthesis, these are called STOP codons.
What are the three stop codons?
Answer:
UAG, UAA, and UGA are the three STOP codons.
Explanation:
EXTRA POINTSS someonee please help me answer this
Answer: C
Explanation: At that point, you have all of the momentum from B, and it is RIGHT at that point before it starts to lose energy. It has all of the built up momentum that started at A, and continued at B, and to continued to increase until C.
Take a subject of origins or a question you have and write a minimum of 500 words as a research project. Be sure to list all references and resources as part of your bibliography. Other information can be found at a library or other reference source. (It has to be the creation theory because I go to a christian school.)
Answer:
Life on Earth began more than 3 billion years ago, evolving from the most basic of microbes into a dazzling array of complexity over time. But how did the first organisms on the only known home to life in the universe develop from the primordial soup? One theory involved a "shocking" start. Another idea is utterly chilling. And one theory is out of this world! Inside you'll learn just how mysterious this all is, as we reveal the different scientific theories on the origins of life on Earth.Electric sparks can generate amino acids and sugars from an atmosphere loaded with water, methane, ammonia and hydrogen, as was shown in the famous Miller-Urey experiment reported in 1953, suggesting that lightning might have helped create the key building blocks of life on Earth in its early days. Over millions of years, larger and more complex molecules could form. Although research since then has revealed the early atmosphere of Earth was actually hydrogen-poor, scientists have suggested that volcanic clouds in the early atmosphere might have held methane, ammonia and hydrogen and been filled with lightning as well. The first molecules of life might have met on clay, according to an idea elaborated by organic chemist Alexander Graham Cairns-Smith at the University of Glasgow in Scotland. These surfaces might not only have concentrated these organic compounds together, but also helped organize them into patterns much like our genes do now. The main role of DNA is to store information on how other molecules should be arranged. Genetic sequences in DNA are essentially instructions on how amino acids should be arranged in proteins. Cairns-Smith suggests that mineral crystals in clay could have arranged organic molecules into organized patterns. After a while, organic molecules took over this job and organized themselves.
Explanation:
Suppose that millions of years from now Australia moves to South America. Would Australia still have the same kinds of mammals? Explain your answer.
Answer:
Which best explains why Australia has life forms that do not exist anywhere else on Earth? Australia was separated from the other landmasses by geological forces. Scientists think that dolphins and whales may have evolved from a common ancestor.
Assuming that millions of years from now Australia moves to South America. Australia would not have the same types of mammals, because with the junction of the continents new conditions would suggest for animals to evolve.
What was the evolution of continents?Continental Drift is a theory that claims that, at one time, all the present-day continents formed just a single landmass, called Pangea. This supercontinent, thanks to the movement of the Tectonic Plates, fragmented several times until it provided the current shape of the land masses.
With this information, we can conclude that millions of years from now Australia will move to South America. Australia would not have the same types of mammals, as with the joining of the continents new conditions would suggest the evolution of animals.
Learn more about Continental Drift in brainly.com/question/903117
Everyone open this please!
There are accounts spreading around the same link to answers of questions saying that it’s the only way to type it. Don’t open them! I don’t know what it is but I’ve seen the same link multiple times so it seems sketchy.
Answer: Yes, they’re so many people doing this. Fake bots all over here are taking over brainly. And it’s always a link that doesn’t work with the same profile picture.
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Answer:
B. Repetition is when a scientist does the same experiment several times; replication is when other scientist reproduce a scientist's experiment.
Explanation:
Repetition: Repeat.
Replication: remake
Your normal heartbeat before exercise is called your ____________________.
heart rate
muscle
pre-heart rate
tissue
Answer:
Heart rate i think
Explanation:
Answer:
it should be resting heart rate, but i dont see that as an answer...
The earth belongs to a system of gas, dust, stars, and orbiting objects known as which of the following?
Answer:
mILKY wAY gALAXY
Explanation:
What is the function of the structure identified by the red arrow? (4 points)
The image shows bacteria with thick cell walls. The red arrow points to these cell walls.
© 2011 FLVS
Food capture
Mobility
DNA transfer
Protection
Answer:
The cell wall provides protection/strength and structure to the cell
Answer:
Protection
Explanation:
What phase of the moon does this image represent?
Answer:
Waxing Quarter
Explanation:
What are the parts of an ecosystem?
Answer:The major parts of an ecosystem are: water, water temperature, plants, animals, air, light and soil. They all work together. If there isn't enough light or water or if the soil doesn't have the right nutrients, the plants will die.
Explanation:
what are the types of receptors being used by the serval, the spider, the chameleon, and the male silkworm moth?
Answer:
yaeh
Explanation:
Silkworm moth, (Bombyx mori), lepidopteran whose caterpillar has been used in silk production (sericulture) for thousands of years. Although native to China, the silkworm has been introduced throughout the world and has undergone complete domestication, with the species no longer being found in
Which neurotransmitters are used for each division of the autonomic nervous system? Be sure to describe the synapse at the autonomic ganglion and at the effector. What component of the system determines if a given neurotransmitter has an excitatory or inhibitory effect on the target effector?
Answer:
The autonomic nervous system is in charge of controlling visceral effectors. Traditionally, it is described by its peripheral nervous components (ganglia, nerves and plexuses) and two divisions are distinguished: the sympathetic and the parasympathetic. Transmission of the excitatory stimulus through the synaptic cleft occurs by release of neurotransmitters; the neurotransmitters of the sympathetic and parasympathetic nervous system are mainly norepinephrine (NA) and acetylcholine (AC). The NA-secreting fibers are called adrenergic and those that secrete AC, cholinergic. All preganglionic neurons, both those of the sympathetic nervous system and those of the parasympathetic nervous system, are cholinergic. The neuron that releases the neurotransmitter is called a presynaptic neuron. The signal receptor neuron is called a postsynaptic neuron. Depending on the type of neurotransmitter released, postsynaptic neurons are either stimulated (excited) or de-stimulated (inhibited).
Explanation:
The autonomic nervous system is the part of the central and peripheral nervous system that is responsible for the regulation of the involuntary functions of the organism, the maintenance of internal homeostasis and the adaptive responses to variations in the external and internal environment and two divisions are distinguished: the sympathetic and the parasympathetic. Acetylcholine is the preganglionic neurotransmitter of both divisions of the S.N.A. (sympathetic and parasympathetic) and also of the postganglionic neurons of the parasympathetic. The nerves at whose endings acetylcholine are released are called cholinergic. Norepinephrine is the neurotransmitter of postganglionic sympathetic neurons. The nerves into which norepinephrine is released are called adrenergic. Within the efferent sympathetic impulses, the postganglionic neurons that innervate the eccrine sweat glands and some blood vessels that supply the skeletal muscles are of the cholinergic type. Both acetylcholine and norepinephrine act on the different organs to produce the corresponding parasympathetic or sympathetic effects. The peripheral nerve endings of the sympathetic form a reticulum or plexus from which the terminal fibers come in contact with the effector cells. All the norepinephrine in peripheral tissues is found in the sympathetic endings in which it accumulates in subcellular particles analogous to the chromaffin granulations of the adrenal medulla. The release of norepinephrine at nerve endings occurs in response to action potentials that travel through nerve endings. The receptor, when stimulated by catecholamines, sets in motion a series of membrane changes that are followed by a cascade of intracellular phenomena that culminate in a measurable response. There are two classes of adrenergic receptors known as alpha and beta. These two classes are again subdivided into others that have different functions and that can be stimulated or blocked separately. Norepinephrine primarily excites alpha receptors and beta receptors to a small extent. The neurotransmitter acetylcholine is synthesized at the axonal terminal and deposited in synaptic vesicles. Acetylcholine activates two different types of receptors, called muscarinic and nicotinic receptors. Acetylcholine (AC) synthesis takes place at presynaptic termination by acetylation of choline with acetyl-coenzyme A, a reaction catalyzed by acetylcholinetransferase. The energy required for the release of a neurotransmitter is generated in the mitochondria of the presynaptic terminal. Binding of neurotransmitters to postsynaptic membrane receptors produces changes in membrane permeability. The nature of the neurotransmitter and the receptor molecule determines whether the effect produced will be one of excitation or inhibition of the postsynaptic neuron.
A student is shown a slide of cells from a species of a producer
in a food web. The student observes that the cells have
chloroplasts. What conclusion about the food web is best
supported by these findings?
o
A. The producers capture energy from sunlight.
B. The food web contains many herbivores and omnivores.
C. The food web is found in a terrestrial ecosystem.
D. The producers in the web are single-celled organisms.
Answer:
the producers capture energy from sunlight