Answer:
In general, your body fights disease by keeping things out of your body that are foreign. Your primary defense against pathogenic germs are physical barriers like your skin. You also produce pathogen-destroying chemicals, like lysozyme, found on parts of your body without skin, including your tears and mucus membranes. In response to infection, your immune system springs into action. White blood cells, antibodies, and other mechanisms go to work to rid your body of the foreign invader. The immune system has a vital role: It protects your body from harmful substances, germs and cell changes that could make you ill. It is made up of various organs, cells and proteins.
Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. These cells are then primed to resist an infection with the invading virus. Cytokines such as interferons activate anti-viral genes in the infected and neighbouring cells.
Microorganisms capable of causing disease—or pathogens—usually enter our bodies through the eyes, mouth, nose, or urogenital openings, or through wounds or bites that breach the skin barrier. Organisms can spread, or be transmitted, by several routes.
The second line of defense is nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals: Phagocytic cells ingest and destroy all microbes that pass into body tissues. For example macrophages are cells derived from monocytes (a type of white blood cell).
If pathogens do manage to enter the body, the body's second line of defense attacks them. The second line of defense includes inflammation, phagocytosis, and fever.
Answer:
your skin protects itself because of all the oils on your glands .. but when you get a cut the while blood cells trap and eat them
Explanation:
4. Mangrove seeds are different from most seed because they____
Answer:
tdyrdrfiygogiuhuy
Explanation:
gogoygoygiu
Exam
Which material would provide the
MOST resistance for electricity?
A. plastic song
B. copper
C. gold
D. silver
Answer:
D. this is why but if it's wrong sorry ;)
Some materials are better conductors than others and offer less resistance to the flow of charge. Silver is one of the best conductors but is never used in wires of household circuits due to its cost.
What was the 1st life on Earth called
A jawless fish
B stromatolite
C tiktallik
D meganeura
Answer:
Your answer is B) stromatolite.
Explanation:
The first forms of life on Earth were microbes.
What type of reaction is shown here?
C6H12O6 +1202→ 6CO2 +6H20
Double replacement
Decomposition
O Combustion
Synthesis
Single replacement
A potted plant is placed in the dark. Which statement best describes what will most likely happen FIRST to the plant over time? The plant will die because it does not have what it needs for cellular respiration The plant will die because it does not have what it needs for cellular respiration The plant will die because it does not have what it needs for photosynthesis The plant will die because it does not have what it needs for photosynthesis The plant will grow at a slower rate The plant will grow at a slower rate The plant will grow faster because it has no competition.
Answer:the plant will die
Explanation:
What is the name of this organelle?
These are called multiallelic traits. If GGHHII was crossed with gghhii, what would the genotype for every offspring be?
a. ggGGhhHHIIii
b. GGhHII
c. GgHhIi
d. ggHHii
Answer:
In the crossing of individuals with multiallelic traits, the crossing of a GGHHII individual with a gghhii individual would produce offspring of hybrid individuals for all three traits whose genotype would be GgHhIi (option c).
Explanation:
The individuals GGHHII and gghhii are pure lines for each of the traits —multiallelic traits— they express, one of them having the three dominant traits and the other three recessive traits. The product of crossing two pure lines with dominant and recessive traits is an offspring of 100% heterozygous individuals.
This can be tested by making a Punnett square for this cross:
GGHHII X gghhii
Alleles GHI GHI
ghi GgHhIi GgHhIi
ghi GgHhIi GgHhIi
Thus the offspring in the cross of two individuals, dominant and recessive, for multiallelic traits G, H and I is GgHhIi
can someone please answer this for me ?
Answer:
A: X Chromosome
B: Centromere
C: P Arm - Short Arm Structure
D: Q Arm - Long Arm Structure
E: DNA Molecule
F: Chromatids
Explanation:
The X chromosome does more than determine sex. We inherit one copy of each chromosome from each parent, and the different versions of genes present on each copy, called alleles, help determine our individual characteristics.
anyone help please!!!
Answer:
Your answers are C₆H₁₂O₆, and DNA.
Which is an important difference between plant and animal cells?
A A plant cell has a cell membrane, but an animal cell does not.
BB. An animal cell has a cell membrane, but a plant cell does not.
C. A plant cell has a cell wall, but an animal cell does not.
D. An animal cell has a cell wall, but a plant cell does not
Answer: Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
HOPE THIS HELPS
In pea plants, the allele for tallness is dominant. What are the possible genotypes of a tall pea plant?
TT or Tt
TT only
Tt or tt
TT or tt
Answer:
Tt and Tt
Explanation:
Edmentum (Hope this helps someone in the future even if it won't help the question asker!)
A 200g ball begins falling from a height of 15m. If the (a) acceleration due to gravity is 10 m/s^2. How long do you calculate it will be before the object reaches the ground? Which formula will you use?
Answer:
1.732 seconds
[tex]s=ut+\dfrac{1}{2}at^2[/tex]
Explanation:
s = Displacement of ball = 15 m
g = a = Acceleration due to gravity = [tex]10\ \text{m/s}^2[/tex]
u = Initial velocity of the ball = 0
t = Time taken
From the kinematic equations we use the following formula
[tex]s=ut+\dfrac{1}{2}at^2\\\Rightarrow 15=0t+\dfrac{1}{2}\times 10t^2\\\Rightarrow t=\sqrt{\dfrac{15\times 2}{10}}\\\Rightarrow t=\sqrt{3}=1.732\ \text{s}[/tex]
The object will reach the ground after 1.732 seconds.
The formula used is [tex]s=ut+\dfrac{1}{2}at^2[/tex].
What do you think would happen if the
dendrites could no longer receive
signals?
Answer:
I think sorry if wrong ;)
These connections occur at short, root-like tendrils called dendrites, which sprout from the neuron's cell body, or soma. ... As it loses input connections, the wounded neuron also becomes more excitable: the neuron becomes more likely to fire signals down its truncated axon when stimulated to do so by other neurons.
define any three types of chromosomes depending upon position of centromere?
Answer:
The type of chromosomes based on the position of centromere are of the following four types :
1) Metacentric chromosome: centromere in middle forming two equal arms.
2) Sub-metacentric chromosome: centromere placed near to one end resulting in one shorter and one long arm.
3) Acrocentric chromosome: Centromere placed close to one end forming one extreme short and one extreme long arm.
4) Telocentric chromosome: terminally placed centromere.
solution
During which phase of mitosis do centromeres, which are at the opposite ends of the cell, use spindle fibers to place the chromosomes in the proper place in the cell
A.)telophase
B.)anaphase
C.)prophase
D.)metaphase
Answer:
Metaphase
Explanation:
The metaphase is when chromosomes are lined up and each sister chromatid is attached to a spindle fiber, which will place all of the chromosomes in the proper place in the cell.
Answer:
D.) Metaphase i took the quiz
Explanation:
The diagram shows three steps in the carbon cycle.
The Carbon Cycle
Carbon dioxide gas
Soil
Which two statements best summarize Step 1?
A. Producers take up carbon dioxide gas from the air.
B. Sugars move from one living thing to another when consumers
eat food
C. Decomposers return carbon to the soil when they break down
wastes and remains
D. Plants use carbon dioxide gas to make sugars during
Answer:the answers are a and d
Explanation:
I did the test sorry if wrong
In the given image, it is showing that plants use carbon dioxide gas to make sugars during photosynthesis. The correct option is D.
What is carbon cycle?The carbon cycle is nature's method of recycling carbon atoms, which travel from the ambience into Earth's living organisms and then back into the atmosphere. The majority of carbon is stored in rocks and sediments, with the remainder in the ocean, environment, and living organisms.
Plants consume carbon dioxide and sunshine during photosynthesis to produce fuel i.e., glucose and other sugars for the construction of plant structures. The fast biological carbon cycle is built on this process.
Thus, the correct option is D.
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Your question seems incomplete, the missing image is probably the below one.
Which characteristics do birds and mammals share? Check all that apply.
Both give birth to live young.
Both are endotherms.
Both have hair or fur.
Both produce milk to feed their young.
Both are vertebrates.
Answer:
Extant birds and mammals share a number of highly similar characteristics, including but not limited to, enhanced hearing, vocal communication, endothermy, insulation, shivering, respiratory turbinates, high basal metabolism, grinding, sustained activity, four-chambered heart, high blood pressure, and intensive ...
An endotherm is an organism that uses internal body heat to maintain a metabolically suitable temperature rather than relying on ambient heat. The endotherms primarily include the birds and mammals.
Why are birds and mammals endotherm?In contrast to organisms that rely on the heat of their surroundings to sustain a temperature that is optimal for their metabolic processes, endotherms generate their own heat from within their bodies. The majority of endotherms are comprised of different kinds of birds and animals.
Endotherms, which include birds and mammals, generate and store a significant amount of heat within their own tissues, as opposed to ectotherms, which include insects and reptiles, who take in heat from their surroundings. Insects and reptiles are examples of ectotherms.
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What are bacteria that live in extreme conditions called?
Protista
Archaebacteria
Fungi
Eubacteria
Which process is not caused by the movement of Earth's plates?
A ocean island formation
B chemical weathering
C mountain building
D volcanic eruption
Explain the difference between an invasive species and a nonnative species.
Answer:
Non-native species spread by natural process or human activities. Most non-native or indigenous species are harmless. They are called exotic species. ... The main difference between exotic and invasive species is that exotic species is harmless to the ecosystem whereas invasive species is harmful to the ecosystem.
Explanation:
Answer and Explanation:
Invasive is a species of plant or animal that outcompetes other species causing damage to an ecosystem..
Non-native: a species that originated somewhere other than its current location and has been introduced to the area where it now lives..
Non-native species are also called exotic species..
Drive-reduction theory states that external factors motivate individuals toward certain behaviors. true or false
Answer:
true
Explanation:
ED 2020
Answer:
The answer is false
Explanation:
ED 2021
describe the meaning of the phrase "cells are the basic unit of structure in all organisms" in your own words.
Answer:
Each organism has a basic unit of structure which are cells.
Explanation:
;)
Cells are regarded as the fundamental units of life in part because they come in discrete and easily identifiable packages.
What are cells?Cells are the fundamental building blocks of all life. Trillions of cells make up the organisms' body.
They support the body's structure, absorb nutrients from food, convert those nutrients into energy, and perform specialized functions.
Nucleic acids, proteins, carbohydrates, and lipids are the four major classes of organic molecules found in all cells.
Cells are regarded as the fundamental units of life in part because they come in discrete and easily identifiable packages.
Like the walls of a house, all cells are surrounded by a structure called the cell membrane, which serves as a clear boundary between the cell's internal and external environments.
Thus, cells are the basic unit of structure of all organisms.
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wha is the capital of the united states
Answer:
the capitol is Washington DC
Answer:
Washington DC
Explanation:
Glycerol + ___Fatty Acid Molecules Fat + ___Water Molecules 15. Fill in the missing labels indicating the number of fatty acid molecules and water molecules needed to complete the above equation.
Answer:
Test
Explanation:
TEst
How do energy and matter move through an ecosystem?
A)Energy cycle, matter flows
B)Energy flows, matter cycles
C)Both energy and matter cycle
D)Both energy and matter flow
Answer:
B. Energy flows, matter cycles
A cell must expend energy to accomplish substances movement during A osmosis B active transport C passive transport D diffusion E filtration
Which of these factors affects how fast a sound wave moves? the kind of material it is moving through the kind of material it is moving through the amplitude of the sound wave's vibrations the amplitude of the sound wave's vibrations the wavelength of the disturbance in the medium the wavelength of the disturbance in the medium the type of motion that caused the sound wave to form the type of motion that caused the sound wave to form
Answer:
the kind of material it is moving through
Explanation:
Sound wave is a type of mechanical wave, which requires a medium to travel, unlike longitudinal waves that can travel through vacuums. Since, sound waves travel through mediums, the KIND OF MEDIUM/MATERIAL it is traveling through has a role to play on how fast it moves.
Sound waves move faster in materials whose molecules are closely packed together than those with loosely packed molecules. This is why sound waves naturally travel faster in SOLID materials. Therefore, the the kind of material the sound wave is moving through affects how fast it moves.
Which 2 organs perform both chemical and mechanical digestion?
Answer:
Mouth and stomach.
Explanation:
To answer to which of the following questions would be most useful in determining whether to classify an organism in kingdom Plantae or kingdom Animalia
A. is the organism able to respond to stimuli
B. Is the organism able to make its own food
C. Is the organism unicellular or multicellular
D. Is the organism made of cells with or without nucleus
Answer:
A. is the organism able to respond to stimuli
Explanation:
The determination of whether to classify an organism in kingdom Plantae or kingdom Animalia is the organism able to make its own food or not. Thus, the correct option is B.
What are the differences between plants and animals?The main defining characteristics between the organisms of Kingdom Plantae include all the multicellular, photosynthetic eukaryotes category. Plants belong to the kingdom Plantae. Plants are the primary producers of the Earth’s ecosystem. They can prepare their own food (carbohydrates).
The characteristics of the Kingdom Animalia include the organisms which belong to the category of multicellular, eukaryotes. They are classified into various classes such as mammals, amphibians, reptiles, fish, birds, and insects. They cannot prepare their own food. They can move from one location to the other location.
Therefore, the correct option is B.
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how are mass and volume alike