Answer:
B, Carries Carbon dioxide-rich blood from the lungs to the heart
Explanation:
Explain the relationships between five members of a food web. Include at least one producer and one high-level consumer
Answer:
the sun shines on earth, which through photosynthesis in a humble blade of grass turns into food and energy for the grass. now a small mouse hops along, stomach growling. it eats our blade of grass now itself getting energy. the naive, full mouse hops through the field before it squeaks in horror. a snake slinks towards it. the mouse is too slow. and the mouse breathes his last breath. the snake swallows it whole. stomach content now digesting its new energy sleeps. before it has the chance to react a hawk snatches it up in her claws. killing it she eats. this snake is poisonous, the next time our hawk flies, she stumbles, then falls. vanquished by poison her lifeless body lies in the dirt. her nutrients go into the soil, thanks to decomposers like worms. her nutrients help new grass blades grow, and the cycle continues.
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Greenhouse gases absorb radiation from the sun and read it back to the atmosphere which helps to maintain a normal range of what on earth?
Answer:
Heat
Explanation:
Solar energy absorbed at Earth's surface is radiated back into the atmosphere as heat. They spread the heat back to the land and the ocean.
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Name 4 ways that different types of disease can interact to make a person ill.
Answer:
Modes of transmission or means of transmission is defined as the movement or transmission of pathogen from infected person or any reservoir to other person.
4 ways or modes of transmission of diseases include:
Contact (direct and/or indirect) - Direct contact include physical relation between infected person or susceptible person such as kissing, sexual contact or transfer of oral secretion. Diseases caused by direct contact include small pox, pink eye and hepatitis a and B. Indirect contact include transmission of diseases form infected person to susceptible person through a infected surface such as infected needle.Droplet: water droplet coming out of the mouth, perspiration or other open parts of the body carries pathogens to susceptible person. sneezing and coughing are most common of droplet ways through which diseases spread.Airborne: Some of the diseases are spread through means of air such as chickenpox virus, norovirus, measles morbillivirus, Mycobacterium tuberculosis and influenza virus et-cetra.Vector: Vectors are defined as an organism that carries disease causing pathogens from infected person to other host body. Fleas or other insects are example of vectors.Hence, 4 ways that different types of disease transmission that can make a person ill are droplet, Contact (direct and/or indirect), vectors and airborne.
the DNA is tightly wrapped around histone proteins in a chromosome why is this packaging necessary?
1. Because the dna molecules will down without it .
2. Because the dna molecules will dissolve in cell water .
3.) because the long dna will fit inside the cell.
4.) because the dna needs to attach itself to support .
Answer:
3.) because the long dna will not fit inside the cell.
Explanation:
This question is oddly written. At first glance, I can tell it's not 1 or 2 because DNA doesn't "dissolve" in cell "water", nor will it "down" (I'm assuming this means "drown"?).
The main reasons for DNA packaging are so that the DNA can fit into the cell, and so it's protected from damage. The DNA is vital to the cell, so it protects it by coiling it up. Coiling and packaging are also important when it comes to gene expression.
Answer: The correct answer is C
Explanation:
I took the test
The birds shown above have beaks with three different shapes and sizes. These genetic variations in the beak each appeared initially due to
Answer:
mutations
on edge
It was Charles Darwin who called the birds seen on the Galapagos islands as the finches. These birds show a remarkable diversification in their beak based on their chief food.
What are Darwin's Finches?Charles Darwin observed a group of small sparrow like black birds with strong, short beaks which are known today as Darwin's finches. These finches varied on different islands, but they were closely related to one another.
These finches evolved from a common ancestors to have different beaks well suited for different types of food they feed on. Generally long and pointed beaks are suitable for seed and cactus feeders. Even some short beaked finches tear up the base of the cactus and feed on its pulp.
The slender and sharp beaks are common in insect eating finches. The process by which they successfully evolved and radiated to different habitats is called the adaptive radiation.
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Your question is incomplete most probably your full question was:
Some birds have beaks with three different shapes and sizes. These genetic variations is the result of which theory?
the donor blood type considered to be universal
Answer:
O negative blood
Explanation:
For emergency transfusions, blood group type O negative blood is the variety of blood that has the lowest risk of causing serious reactions for most people who receive it. Because of this, it's sometimes called the universal blood donor type.
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Answer:
type O
Explanation:
type O, since it contains no antigens. Type O, negative, to be more speciifc (with negative referring to the Rh factor) however O Negative Is widely considered the universal blood type. It is very important because it potentially be transfused to any patient regardless of their blood type. Especially in emergency situations, when there isn't enough time to determine a patients blood type. A person with type O - is considered to be a universal donor because his blood can be safely received by a person with type A, B, AB, or O.
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modeling the carbon cycle assignment Include short phrases on your poster that summarize what occurs at each stage of the carbon cycle. help
Coastal plains are also referred to as ____. a. marshes c. interior plains b. lowlands d. plateaus
The correct answer is B) lowlands.
Coastal plains are also referred to as lowlands.
This region of the United States is a flat land next to the sea. Oftentimes this region is divided from other parts by mountain chains. We are talking about the coastal plains along the Atlantic Ocean. This low relief region of the East Coast extends for 2,200 miles from the state of New York to the state of Florida.
Answer:
b. lowlands
Explanation:
What kind of banded rock is formed by cavities in rocks left by gas bubbles?
A. Fossils
B. Marble
C. Agates
Vaccines have been subjected to quite a bit of controversy in recent years. Currently, the Centers for Disease Control and Prevention (CDC) recommend that healthy people receive a flu vaccine every year. What are your current perceptions of the flu vaccine? Do you think these recommendations are appropriate? Explain your reasoning.
Answer:
There are many reasons to get an influenza (flu) vaccine each year.
Flu vaccination can keep you from getting sick with flu.
Flu vaccination can reduce the risk of flu-associated hospitalization for children, working age adults, and older adults.
Flu vaccination is an important preventive tool for people with chronic health conditions.
Flu vaccination helps protect women during and after pregnancy.
Flu vaccine can be life-saving in children.
Flu vaccination has been shown in several studies to reduce severity of illness in people who get vaccinated but still get sick.
Getting vaccinated yourself may also protect people around you, including those who are more vulnerable to serious flu illness, like babies and young children, older people, and people with certain chronic health conditions.
Explanation:
Influenza is a potentially serious disease that can lead to hospitalization and sometimes even death. Every flu season is different, and influenza infection can affect people differently, but millions of people get flu every year, hundreds of thousands of people are hospitalized and thousands to tens of thousands of people die from flu-related causes every year. An annual seasonal flu vaccine is the best way to help protect against flu. Vaccination has been shown to have many benefits including reducing the risk of flu illnesses, hospitalizations and even the risk of flu-related death in children.
Flu vaccines helps to reduce the risk of flu-associated illness. And the recommendations made by CDC that healthy people receive a flu vaccine every year is appropriate.
What is flu?"Also called influenza is a viral infection which can be deadly in high risk groups."Flu symptoms include- fever, cough, cold, fatigue, headaches and muscle pain.It causes asthma, pneumonia and chronic diseases.What is flu vaccines?"These are the vaccines that protect against infection by influenza viruses."What is CDC?"It is the National public health agency of the United States."Hence, in order to reduce the disease caused by flu, it is recommended to receive a vaccine.
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why can AIDS be classified as both an infectious disease and an immune system disorder ?
Answer:
Because AIDS can not only be passed from person to person but it can also affect your immune system in ways other infections diseases can not.
Explanation:
for example: type 1 diabetes is an auto-immune disorder and can not be passed on by bodily fluids. chlamydia is an infectious disease that can be passed on by bodily fluids.
AIDS is an auto immune disorder because it affects the immune system in the same ways that other auto-immune disorders do. this being so it can all so be found in the blood and passed on like an infection where as auto-immune disorders normally dont live in a persons blood.
sorry if this is confusing. hope this helps
Which of the following factors will most likely limit the light-dependent reactions of photosynthesis?
A. Light intensity and light quality
B. Temperature and light intensity
C. Carbon dioxide concentration and light quality
D. Carbon dioxide concentration and temperature
Answer:
C
Explanation:
Describe the location of the kneecap to the knee joint
Answer:
superior
Explanation:
11. This picture shows the surface weather model at a particular location.
What type of weather is most likely expected at the location? (3 points)
fog
snowfall
hurricane
thunderstorm
If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?
Answer:
The rate would increase
Explanation:
_______ recycle dead plants and animals by turning them into minerals and nutrients for the soil.
A.
Green plants
B.
Decomposers
C.
Predators
D.
Herbivores
Question 1 of 10
2 Points
Blood has traveled from the heart to the fingers. Which describes the next
step of the circulation process?
A. The blood travels to the lungs to get carbon dioxide.
B. The blood returns to the heart through veins.
C. The blood releases oxygen on the way back to the heart.
0
D. The blood goes through the liver to be cleaned.
SUBMIT
Answer:
The blood returns to the heart through veins.
Explanation:
Blood returns to the heart from the body through the Vena Cava and from the lungs through the Pulmonary Vein . So mainly blood returns to the heart through Veins.
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Write one scientific question about the organism in the photo
Answer:
Please attach the photo of the organism.
Explanation:
What would happen if a tiger switched habitats?
Answer:
It could possibly go instinct or they could show issues and carry diseases
Explanation:
Multiple organs which are engaged in a specific process form a(n) ???
Answer: organ system
Explanation:
For example the stomach and intestines that work together to digest food would be a digestive system. so depends on the organs that are working together.
Select the correct answer.
A lichen is an organism that structurally appears to be a single organism. But a lichen is actually two different organisms—a fungus and green
algae-living together as one organism. The fungal partner derives its nutrition from the photosynthesizing algae. How does a lichen differ in its
photosynthetic activity from Elysia chlorotica, the sea slug that's considered to be a photosynthesizing animal?
CA In lichens, the fungi photosynthesize on their own, while Elysia chlorotica forms a relationship with a photosynthesizing plant.
B. In lichens, the relationship with the algae lasts throughout the life cycle, but in Elysia chlorotica, the relationship occurs only
during the immature juvenile stage of the slugs life cycle.
OC Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from
algae into its cells.
D. In lichens, the association between the fungi and algae is permanent, while Elysia chlorotica associates with a
photosynthesizing organism only when it requires food.
Answer:
The correct answer is option C. Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from algae into its cells.
Explanation:
Elysia chlorotica is an animal of the mollusk member that is known as the animal that can make its own food in unfavorable conditions. Elysia chlorotica search out plants and they eat them. They assuredly don't photosynthesize n its own.
They take the mechanism that permits plants to collect sunlight based vitality. The slugs take up these smaller than normal machines, called chloroplasts, into their skin, which turns them emerald green. While Lichens can photosynthesize only due to the living partner algae that can photosynthesize for both.
Answer: B.
Explanation:
The correct answer is option C. Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from algae into its cells.
Explanation:
Elysia chlorotica is an animal of the mollusk member that is known as the animal that can make its own food in unfavorable conditions. Elysia chlorotica search out plants and they eat them. They assuredly don't photosynthesize n its own.
They take the mechanism that permits plants to collect sunlight based vitality. The slugs take up these smaller than normal machines, called chloroplasts, into their skin, which turns them emerald green. While Lichens can photosynthesize only due to the living partner algae that can photosynthesize for both.
A student is examining leaf cells. Which organelles are most likely to be missing from the cells?
A. ribosomes
B. chloroplasts
C. lysosomes
D. mitochondria
Answer:
C.) lysosomes
Explanation:
All the other listed organelles are found in plant cells. But lysosomes are sometimes not included.
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A type of cellular transport is shown. Which description best identifies this type of cellular transport? Your answer: Osmosis, because energy is being used to move molecules with the concentration gradient. Active transport, because energy is being used to move molecules against the concentration gradient. Facilitated diffusion, because energy is being used to move molecules with the concentration gradient
Answer:
Active transport, because energy is being used to move molecules against the concentration gradient.
Explanation:
This picture shows active transport. That just means that energy is being used (in this case, ATP) to move molecules against their gradient (meaning, from low to high concentration). Molecules "naturally" diffuse from high-->low concentration, so to move in the opposite direction requires energy input. You can tell this because there are only 2 molecules on the top side of the membrane, but on the bottom side there are 13.
Why not A: This is not necessarily water, as in osmosis, and it's not going with the gradient.
Why not C: This is not facilitated diffusion, because molecules are going against, not with, their concentration gradient.
The description that best identifies this type of cellular transport is: Active transport, because energy is being used to move molecules against the concentration gradient.
WHAT IS ACTIVE TRANSPORT:Active transport is a type of transport that requires the input of energy in form of ATP. This is because the movement of molecules is against a concentration gradient. According to the diagram in this question, molecules are being moved into the cell with an input of ATP (energy).Therefore, the description that best identifies this type of cellular transport is: Active transport, because energy is being used to move molecules against the concentration gradient.
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Match the type of rock with how it forms.
Igneous
?
Released in volcanic
eruptions
Metamorphic
Can form from erosion
?
Sedimentary
?
Form because of high heat
and pressure
The matching of type of rocks with respect to their formation is described as follows:
Igneous rock: released in volcanic eruptions. Metamorphic rock: formed because of high heat and pressure.Sedimentary rock: formed from weathering, erosion, deposition, compaction, and cementation. What is a Rock?A rock may be defined as the solid mineral material forming part of the surface of the earth and is deposited under the earth surface.
Therefore, the matching of types of rocks with respect to their formation is briefly mentioned above.
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n this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment. What question are you answering by doing this observation? Write it by filling in the blanks below.
What is the effect of…
…on…
Answer:
what is the effect of food availability/competition on natural selection
Explanation:
Something along those lines, this is similar to the Galapagos finches when there used to be just one species but due to natural selection and limited food due to competition, the beaks changed to be able to eat the other food s available that they originally could not eat. There are now about 14 due to this.
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Answer:
What is the effect of the type of food available on the frequency of different types of bird beaks?
Explanation:
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Which are limiting nutrients for plant growth?
Answer:
Macro nutrients that commonly act as limits on plant growth, Nitrogen, Phosphorous,and Potassium. Hope this helps out.
Explanation:
Answer:
phosphorus and nitrogen
Explanation:
edge
HOw could overuse of household disinfectants weaken the immune system
Answer: A
Explanation: i tock the test alredy
Answer:
I'm assuming there are options so...
I believe the correct answer is
D. By reducing exposure to pathogens and the creation of specific memory cells
It will reduce exposure to certain pathogens and prevent you from getting sick which is good, but if you don't get those pathogens, when your body does encounter it again, your Memory T cells will. it know how to fight it off.
Which of the following is an intrusive igneous body?
O A. Stock
O B. Stope
O c. Magma Chamber
O D. Aphanite
Answer:
D. Aphanite
Explanation:
A.P.E.X
An invasive igneous body is aphanite. Thus, the correct option is D.
What are Aphanite rocks?
Aphanite's are igneous rocks that were formed by rapid cooling in a volcanic or hypabyssal setting and are so finely grained that their individual mineral crystals cannot be seen with the unaided eye.
Very fine-grained, crystalline fabrics called aphanitic minerals are created when a magma solidifies in reaction to an exceptionally rapid loss of heat and dissolved gases. They are characterized by grains that are too small to be recognized without a petrological microscope.
Large crystals are known to be present in certain specific igneous rocks. The crystals in this type of rock are approximately the same size. Compared to aphanitic rock, which is known to have rocks with finer grain sizes.
So, the correct option is D.
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Why is an overabundance of nutrients harmful to a water supply?
A.
It decreases the number and types of aquatic plants.
B.
It kills all aquatic plants.
C.
It sterilizes water.
D.
It causes excessive aquatic plant growth.
Answer:
d
Explanation:
It leads to a process called as eutrophication in which the aquatic plants grow regularly over the water surface and the living beings living inside the water gets diminished because of the lack of nutrients and the various substances required for the growth.
What is water sterilization ?It is the process in which the harmful substances and contaminants are removed outside the water source such that the water can be removed out from water resources such that they can be made appropriate for drinking.
An overabundance of various nutrient primarily nitrogen along with phosphorus in water begins a process known as eutrophication. The process hammers the growth of other lives present on the sources.
Algae feed on nutrients, growing, spreading and turning out the water green. Algae blooms smells bad, blocks sunlight and even releases out chemicals in certain cases.
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stress at a divergent plate boundary
Tensional stress happens at these plate boundaries when the plates are moving away from each other. Is this the answer you were looking for?
Answer:
tensional
Explanation:
