Which behavior is a response to an external stimulus? EXPLAIN WHY
A. An elephant drinks water to quench its thirst.
B. A dog vomits during an illness to rid itself of pathogens.
C. A child gets a fever to fight off the flu.
D. A turtle suns itself on a rock during a cool day.
Answer:
D
Explanation:
External means outside of, internal is within. The question is asking for external stimulus. Answers A-C are internal: thirst, fever and illness.
What is represented in each square of the periodic table?
one major contributor to global warming is an increased amount of carbon dioxide in the atmosphere. if the number of plants significantly increased then
A ) global warming might get worse because of the increase in carbon dioxide caused by plants
B ) global warming might be reduced because of the decrease in carbon dioxide caused by photosynthesis
C ) global warming might get worse because of the increase in oxygen caused by plants
D ) there might not be noticeable impact on global carbon dioxide levels
Answer:
B
Explanation:
Global warming might be reduced because plants take in carbon and give out oxgyen.
Please help me with this
So In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism. So what would you look up that interests you
Hope This helps!!!
pls help me, ill mark!!!!
Answer:
#1. the organs of the nervous system: This system is made up of the brain, spinal cord
#2. the organ that sensory nerves reach the brain: Sensory neurons assemble to form sensory nerves that reach the brain through the spinal cord. The brain processes the sensory impulses and sends information to the corresponding effector organs through motor nerves
The small finger like projections are: axon terminals, The connection between a neuron and a muscle cell is called a neuromuscular junction. The finger-like projections of the axon are the axon terminals. An action potential moves down to the axon terminals where it causes a chemical message called a neurotransmitter to be released into the synaptic cleft.
Explanation:
pls mark brainliest
Now I know that structures in a simple nervous system differ from those in a complex nervous system in that they have a
pls answer this seriously.
thx!!
Answer:
Now I know that structures in a simple nervous system differ from those in a complex nervous system in that they have a unit that isn't basic, but in their arrangement. In higher nervous systems there are not interneurons concentrated in the main nervous system. (brain, spinal, and cord.) They meditate the impulses between afferent and efferent neurons.
Explanation:
Please Help Me With Science
The Sun’s radius is about 100 times the radius of the Milky Way.
TRUE OR FALSE?
Answer:
TRUE.
Explanation:
(link to the quizlet study flashcards just incase you need them)
Imagine you are a scientist who monitors some of North Carolina's trout streams. You find that one of the streams has a temperature of about 13°C during most of the day. However, everyday around 2 p.m., the stream briefly reaches temperature levels of 19°C. What should you do in order to preserver the water quality of this stream?
Answer:
15
Explanation:
Klaus is going to Greece to study the ancient columns. He typically studies artifacts in a lab, but the columns are immobile and can't be taken to
a lab. What kind of artifacts are the columns considered to be?
A .archaeological features
B.stationary artifacts
с.cumulative lifeways
D.stationary remains
Limiting factors are divided into two categories. What are they? Give an example of each.Limiting factors are divided into two categories. What are they? Give an example of each.
Answer:
Limiting factors fall into two broad categories: density-dependent factors and density-independent factors. These names mean just what they say: Density-independent factors have an impact on the population, whether the population is large or small, growing or shrinking.
the density-dependent factor example is:
Density-dependent factor, also called regulating factor, in ecology, any force that affects the size of a population of living things in response to the density of the population (the number of individuals per unit area).
the independent factors example is:
Pollution. Like other density independent factors, pollution is a good example of a density independence.
Explanation:
pls mark brainliest
gene that is typically observed
Answer:
it think it is the marker gene it said that online for me I dont know
if that even is a gene
Answer:
yes
Explanation:
Which statement best describes how panting after running helps a person's body maintain homeostasis? EXPLAIN THE ANSWER
A). It keeps the person's body warm when it is cold outside.
B). It rids the body of harmful organisms in the respiratory tract.
C). It brings more oxygen into the body to help meet increased energy needs.
D). It signals the body to start exercising to prevent getting out of shape.
Which of the following cellular processes will be involved in the growth, development, and reproduction of the offspring?
a. meiosis only
b. mitosis only
C. both meiosis and mitosis
d. neither meiosis nor mitosis
Answer:Both Mitosis and meiosis
Explanation:
Cell face both conditions for the development of new offspring
Parasites are organisms that live in or on a host organism, obtaining essential nutrition for themselves from the host. Parasites rarely kill their hosts, however. Which explanation BEST describes why evolutionary pressures selected for parasites that do not kill the host?
Answer: Parasites that kill the host lose their source of nutrition or energy and would be less likely to survive.
Explanation:
Darwin's finches are often used to illustrate evolution. Evaluate the finch beaks shown in the picture. Choose ALL of the statements that correctly explain the evolution of finch beaks.
A) As the environment changed, the finches grew longer beaks to allow them to get food out of fruits.
B) Finches with longer beaks settled on the same island with smaller beaked birds. Over time, they bred, producing medium beaked birds that became more common in the population.
C) There are finches with different types of beaks in the population. During a drought, those with shorter beaks are not able to find sufficient food and die, leaving them unable to reproduce and pass the trait on to offspring.
D) A random mutation introduced the shorter, thicker beak into the population. However, those with thinner, longer beaks were better able to get nectar from the island's flowers. Those birds with the shorter, thicker beaks were unable to get enough food to survive.
E) A disease swept through the island killing many of the insects that were common on the island, leaving the birds who ate insects from the ground starving. The finches that had thicker beaks and could get food from tree bark were able to continue to survive and reproduce, increasing this trait in the population.
Answer: It's C and E, got it wrong because of this kid so it's not A and D
Explanation:
Pretend your classmate has told you that they are having trouble with what succession is. How would you explain to them what succession is? How would you explain the difference between primary and secondary succession? Write your response in the textbox and submit when you are done. DO NOT GO..OGLE YOUR ANSWER
Answer: In primary succession, newly uncover or newly found rock is populated by living things for the first time. In secondary succession, an district before it was populated by living things is disturbed, and then re-populated after the disturbance.
Explanation:
help please i have to do it now!!!!
Answer:
Explanation:
1,3,4 hope this helps<3
All the statements are correct with respect the two atoms placement on the Periodic Table EXCEPT –
Can I please get help?
Answer:
Technology because we don't have the necessary technology to explore the parts of space and for all we know we don't even know what the universe actual looks like or if there are alternate universes but as technology advances we will know. Explanation:
can octopuses regenerate teeth?
]How does emphasis on agricultural technology today compare to the recent past?
Today scientists are only concerned with the nutrition of livestock, not with size or quantity.
In the past, scientists were concerned with mass-producing for local areas, not for large areas.
In the past, scientists have not been concerned with the well-being of livestock or crops.
Today scientists are devising ways to use advancements in positive ways for the environment.
Answer:
In the past, scientists were concerned with mass-producing for local areas, not for large areas.
Explanation:
Today agriculture is made on a more global scale
Which statement is the best description of organism behavior?
A: the way an organism responds to human instruction
B: the way the environment responds to organisms
C: the physical traits an animal has that are passed down
D: the way an organism responds to the elements in its environment
The statement 'the way an organism responds to the elements in its environment' is the best description of organism behavior (Option D).
What is the environmental response?The term environmental response indicates as an organism can react to certain environmental conditions.
These responses are fundamental to the survival and reproduction of the organism.The organism responds to environmental conditions such as temperature changes, winds, etc.In conclusion, the statement 'the way an organism responds to the elements in its environment' is the best description of organism behavior (Option D).
Learn more in:
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Glucose, Starch, and cellulose are this type of molecule that is produced by plants *
A.lipids
B.proteins
C.carbohydrates
PLS HELP
C. Carbohydrates
Hope you find this helpful
1. What is a double helix?
2. What forms the sides of the helix?
3. What is a nucleotide?
4. What are the three components of a Nucleotide?
5. What is a junk DNA?
Answer:
1. Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.
2. The DNA double helix. The two sides are the sugar-phosphate backbones, composed of alternating phosphate groups and deoxyribose sugars. The nitrogenous bases face the center of the double helix.
3. A nucleotide is an organic molecule that is the building block of DNA and RNA. ... A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.
4. A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.
5. In genetics, the term junk DNA refers to regions of DNA that are non-coding. Some of this noncoding DNA is used to produce noncoding RNA components such as transfer RNA, regulatory RNA and ribosomal RNA
Hopes this helps.
STAAR 11B
Fish in a lake have to compete for space. Different fish have different optimal temperature
ranges. The graph below shows the temperature ranges of four fish species.
Optimal Temperature Ranges
of Four Fish Species
Lake trout
Largemouth bass
Type of fish
Sunfish
Bullhead
0
5
30
10 15 20 25
Temperature (°C)
At which temperature range will there be the most competition for space among these fish species?
F 5°C to 10°C
G 10°C to 15°C
H 15°C to 20°C
J 25°C to 30°C
ANSWER:
EXPLANATION:
Answer: J
Explanation:
HELP!!
Which features of alveoli enable them to exchange gases efficiently? (Select all that apply.)
A. thin walls
B. surrounded by blood vessels
C. small numbers of them in each lung
D. large surface area
Do not scam me using links or attachments (except photos of the answer) or answer this by saying a simple yes or no because that also scams me.
Answer:
the answer is a i hope this helps
Explanation:
The sac-like structure of the alveoli increases their surface area. In addition, the alveoli are made of thin-walled parenchymal cells. These features allow gases to easily diffuse across the cells. so the
Alveoli has thin walls which are surrounded by blood vessels, and they have maximized are for gas exchange. Thus, option A, B, and D are correct.
What are Alveoli?These are basic respiratory units, which are balloon like structure present in the lungs, where exchange of gases takes place. A pair of human lungs can contain approximately 480 million alveoli, which produces about, 50 to 75 square meters surface are.
Alveoli are made of thin walls, and they are covered by a rich blood supply through capillaries, this supplies a diffusion gradient for oxygen to move into the blood and carbon dioxide to move into the lungs.
Therefore, the larger surface area, presence of thin wall, which is only one cell thick, and rich blood supply due to presence of blood vessels enable them to exchange gases efficiently.
Learn more about alveoli, here:
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Which statement best describes how panting after running helps a person's body maintain homeostasis? EXPLAIN THE ANSWER
A). It keeps the person's body warm when it is cold outside.
B). It rids the body of harmful organisms in the respiratory tract.
C). It brings more oxygen into the body to help meet increased energy
needs.
D). It signals the body to start exercising to prevent getting out of
shape.
Answer:
the answer is C
Explanation
we all know they homeostasis is the regulation of body fluids and temperature in the body , as the runner is panting , he is also sweating , sweating regulates the body temperature , panting is a signal to the brain that the person is losing oxygen so while panting , the runner is catching his breath
What happens to carbon in the process of photosynthesis?
Answer:
The plant uses sunlight as energy to perform this chemical reaction. Photosynthesis separates carbon dioxide and water known as CO2 and H2O, respectively into their individual molecules and combines them into new products. It also creates C6H12O6, a substance similar to glucose, that feeds the plant.
Explanation:
- Eijiro <3
Answer:
Photosynthesis separates carbon dioxide and water. (C02 and H20)
In order to perform an experiment, a chemist needs an element that has similar properties of sodium (Na) but has a lower atomic mass. Which element should the chemist select for the experiment?
what is the connection between chromosomes and the heavily muscled phenotype??
Uses these vocab terms or phases in the short answer response: allele, chromosomes , heavily muscled, myostatin protein
Answer: The genotype of an organism is defined as the sum of all its genes. The phenotype of an organism is the observable physical or biochemical characteristics of an organism, determined by both genetic make-up and environmental influences.
Explanation: