The body is protected against harmful flu
viruses by
(1) red blood cells and hormones
(2) white blood cells and antibodies
(3) white blood cells and enzymes
(4) red blood cells and antibodies

Answers

Answer 1

Answer:white blood cells and antibodies

Explanation:White blood cells include lymphocytes (such as B-cells, T-cells and natural killer cells), and many other types of immune cells.


Related Questions


Decomposers play an important role in the carbon cycle.
True
False

Answers

Answer:

true

decomposers break down organisms and return the carbon in their bodies to the atmosphere.

Nitrogen is used for the synthesis of plant proteins and other compounds True / False

Answers

Answer:

True

Explanation:

Its true because nitrogen is required for production of chlorophyll, nucleic acids, and enzymes. Nitrogen is essential for plants to synthesize amino acids, which are the building blocks for protein synthesis.

WHICH RESERVOIR OF THE CARBON CYCLE CHANGES THE MOST AND THE QUICKEST?
(please helpp)

Answers

the ocean is the reservoir that changes the most and the quickest

The reservoir of the carbon cycle that changes the most and the fastest is the atmosphere, as the atmospheric carbon pool changes due to the constant release of carbon dioxide through household sources and cellular respiration.

What is the significance of the carbon pool?

The carbon pool maintains the carbon ratios in the earth, as the atmosphere is the reservoir of the carbon cycle that changes the most and quickest due to burning fossil fuels, usage of household electric appliances, usage of more vehicles that release carbon dioxide, deforestation, etc. If the carbon pool is not maintained and becomes uncontrolled, the environment will be harmed due to global warming, etc.

Hence, the reservoir of the carbon cycle that changes the most and the fastest is the atmosphere, as the atmospheric carbon pool changes due to the constant release of carbon dioxide through household sources and cellular respiration.

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How do your sensory organs help you to maintain homeostasis?

Answers

Answer:

Hi

Explanation:

“Sensory cues influence homeostasis by modulating hormone secretion. ... In step 1, sensory cues change the activity of sensory neurons. In step 2, the sensory information is processed and transmitted, which leads to step 3, where neuro- or nonneuronal endocrine cells secrete hormones required in maintaining homeostasis.”

PLEASE HELP ASAP!!
How does the friction affect the total time a pendulum is in motion? And what could cause this friction in the real world?

Answers

Answer: Friction slows down the swing of the pendulum until it fully stops.

I'm not sure what to put for the next question

An Irish or white potato is a stem, but a sweet potato is a root. How can you tell?​

Answers

Answer:

All stems have nodes, internodes, and axillary buds; these features distinguish them from roots and leaves, which do not have them. In Irish or white potato plants, several internodes at the tips of stolons become tubers.

Explanation:

What differences are there between heartwood and sapwood?​

Answers

Answer:

Heartwood                                                     Sapwood

1 Cells are comparatively older. Cells are comparatively younger.

2 Also called as ‘Duramen’ Also called as ‘Alburnum’

3 Heartwood is dark colured Sapwood is light coloured.

what type of growth is this how could you tell ​

Answers

are there any directions?

when packaged in the virion, the complete complex of nucleic acid and protein is known as the virus

Answers

Answer:

nucleocapsid

Explanation:

(just trying to hit 20)

what weather factor is also a meausurement of energy held within the air?

Answers

Answer:

Answer:Temperature is the amount of heat energy contained in the air, and we measure this in degrees.

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What is a chemical property? Give 2 examples.

Answers

Answer:

Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize

Explanation:

8th grade science notes

How does the hydrogen concentration of a solution change when the pH shifts from 6 to 2? (4 points)

Answers

Answer:

the overall concentration of hydrogen ions is universely related to its PH and can be measured on the physical (figure 1). therefore, the more hydrogen ions present.

The hydrogen ion concentration of a solution increases when pH shifts from 6 to 2.

What is pH?

a metric for determining how basic or acidic a substance or solution is. The pH scale ranges from 0 to 14. A pH value of 7 is considered neutral on this scale, meaning it is neither acidic nor basic. It is more acidic if the pH value is below 7, and more basic if the pH value is above 7.

Typically, a pH meter is used to measure pH, which converts the difference in electromotive force (electrical potential or voltage) between suitable electrodes put in the solution under test into pH measurements.

The different solutions have different pH based on the concentration of hydrogen ions. The concentration of hydrogen ions increases when pH shifts from 6 to 2.

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The biotic factors of the North American ecosystem that influence lodgepole pine populations are

Answers

Space, water, and climate all help determine a species population.

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Somoene please help and explain how to read the graph!!

Answers

Answer:

Whats going on is that you have a specific amount of enzyme that can do a specific amount of work. Think of it like a hotdog stand. the enzyme would be you and your substrats are your hot dogs and buns. You can only go as fast as the materials you have. If you have more materials than hands you can only go as fast as you can make them. To many substrates and you enzyme rate will cap out at maximum speed.

Explanation:

The plot shows rate of reaction of an enzyme as a function of the concentration of substrate. At stage B, the rate flattens and becomes constant, which means there's too much substrate for the enzyme to handle. So the fourth statement is false - the rate of reaction cannot be increasing.

Which organisms live in the neritic zone?
A. anglerfish
B. chemosynthetic bacteria
C. phytoplankton
D. all of the above

Answers

I’m sure that phytoplankton live in the neritic zone but the "all of the above" choice made me overthink. I’d choose between answers choices B or C.
Hopefully this helped a little :(

what is the purpose of a conclusion

Answers

to summarize your writing piece and to tell the ready what it entirely is

Answer:

To wrap up the entire writing, and bring it to, well, a conclusion. It usually states loud and clear what this writing means, and what it’s supposed to teach a reader, and kind of ties it all up. A loosely constructed conclusion makes it seem like there’s more, and that this can’t be it (This can be good for a sequel, however the opposite for most articles).

Hope This Helped!

Which evidence supports viruses being classified as living things?
O They are only made of proteins.
O They can enter cells.
They evolve over time.
O They spread between organisms.

Answers

Answer:

They are made up of protein.

Explanation:

Through out the cells life they all need protein to keep function.

How are solar cells used today?

Answers

Answer:The most commonly used solar technologies for homes and businesses are solar photovoltaics for electricity, passive solar design for space heating and cooling, and solar water heating.

Explanation: Solar cells can be arranged into large groupings called arrays. ... These arrays, composed of many thousands of individual cells, can function as central electric power stations, converting sunlight into electrical energy for distribution to industrial, commercial, and residential users.

What is happening to the chromosomes in this phase of mitosis?

Answers

Answer: The answer is A

During mitosis (nuclear division), the chromosomes condense, the nuclear envelope of most cells breaks down, the cytoskeleton reorganizes to form the mitotic spindle, and the chromosomes move to opposite poles. Chromosome segregation is then usually followed by cell division (cytokinesis).

The characteristic of a nerve cell that relates directly to its function in receiving and
transmitting nerve impulses is its
a. long extensions.
c. ability to change shape.
b. flat shape.
d. ability to engulf and destroy bacteria.

Answers

The axon is the long cytoplasmic extension and the dendrons are the short cytoplasmic extensions. The extensions are responsible for receiving and the transmission of the nerve impulses. Thus, the correct answer is option A. Hope it's helpful to you !

 

Explanation:

Which term best describe the ability of a living system to be restored through secondary ecological succession after a severe disturbance?


resilience

constancy

diversity

inertia

persistence

Answers

Answer:

resilience

Explanation:

Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. i.e. Grassland can burn easily but recover quickly.

Answer:

Resilience: the ability to withstand adversity, destruction and to bounce back, to recover.

Explanation:

Day 1 Values and beliefs

What is the difference between a value and a belief?


Answers

Answer:

Values are a culture's standard for discerning what is good and just in society. Values are deeply embedded and critical for transmitting and teaching a culture's beliefs. Beliefs are the tenets or convictions that people hold to be true

The cells in this leaf are making their own energy by the process of

a
respiration, where oxygen and sunlight at Q and R are taken in and then converted into carbon dioxide and glucose at S and T.
b
photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.
c
photosynthesis, where glucose and oxygen at Q and R are taken in and then converted into water vapor and thermal energy at S and T.
d
respiration, where carbon dioxide and oxygen at Q and R are taken in and then converted into thermal energy and methane gas at S and T.

Answers

Answer:

B is the answer. Glucose and oxygen are given off during Photosynthesis

The cells in this leaf are making their own energy by the process of photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.

What do you mean by photosynthesis?

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

In plants and algae, which developed much later, photosynthesis occurs in a specialized intracellular organelle—the chloroplast. Chloroplasts perform photosynthesis during the daylight hours. The immediate products of photosynthesis, NADPH and ATP.

Photosynthesis is critical for the existence of the vast majority of life on Earth. It is the way in which virtually all energy in the biosphere becomes available to living things.

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Name two types of cells

Answers

Answer:

Animal cells and plant cells  

cytokinesis in plant cells involves the formation of

Answers

Answer:

Cytokinesis in plant cells involves the formation of the insertion of a new cell wall that separates daughter nuclei after mitosis

Cytokinesis involves the formation of the insertion of a new cell wall that separates daughter nuclei  and produce two new daughter cell.

What is cytokinesis ?

It is the final stage in the cell cycle, when a new daughter cells is formed from parent cell through the splitting of the cytoplasm and the separation of the two identical cells.

In Stage 1 cleavage furrow is seen where  the actin filaments will begin to tighten around the cells, spindle formation occur, t the chromosomes are divided evenly between the two nuclei.  The spindle possesses small structures called astral microtubules  guide the alignment of the actin filaments along the future cleavage furrow.

In Stage 2 the gathering of the actin filaments occur where some protein called  myosin facilitates the pulling of the actin filaments, and formation of contractile ring begins.

In Stage 3  the myosin a motor protein with the help of ATP, it is able to contract the contractile ring, deepening the cleavage furrow, causing the cell to narrow in the middle as two daughter cells form.

In Stage 4 the  actual breaking of the cell membrane and the membrane quickly refuses at the broken point and two independent and identical daughter cells are produced.

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Please help urgent due today

Answers

Answer:

D. they return nitrogen to the system

Explanation:

hope it helps

Wood storks thrive in wetland environments by feeding on small freshwater fish.
Wood storks are absent in the Everglades ecosystem because the environment is
no longer suitable to sustain abundant wading bird life. What term describes a
Wood Stork?

#1-Indicator species
#2-Keystone species
#3-Endemic species
#4-Invasive species

Answers

Answer:

Invasive Species

Explanation:

“The environment is no longer suitable to sustain abundant wading bird life”

The stoneflies in the food chain are

Answers

they are formidable carnivores and are primary carnivores

The diagram shows the structure of starch, a complex carbohydrate

Answers

Answer:

Glucose is monomer of starch

Explanation:

Starch is polysacheride and glucous is monosaccharide glucose molecules link with glycosidic bond to form starch so c is your answer

Which statement describes a prokaryotic cell?

A.) An amoeba with a vacuole

B.) A blood cell from an animal

C.) A plant cell with chloroplasts

D.) A bacteria without a nucleus

Answers

D. A Bacteria without a nucleus
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