B cells are only active during a specific immune system. Thus, the correct option is D.
What is the immune system?The immune system may be defined as the complete set of cells and organs that defends the body against foreign invaders to prevent the cause of infection and disease.
Lysozymes, neutrophils, and macrophages provide a general mechanism to defend your body against foreign invaders because these are the cells of innate immunity.
While B cells are only active during a specific immune system because these cells are part of adaptive immunity and deliver a specific response to a particular foreign agent.
Therefore, B cells are only active during a specific immune system. Thus, the correct option is D.
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What are the pros and cons of having the digestion be slower and over distance, as opposed to being quicker and over shorter distance with slightly less absorption?(40 points)
Answer:
Explanation: When you have a slow digestive system, a condition known as gastroparesis or delayed stomach emptying, these muscles don't work properly. They either contact too slowly or don't work at all and, as a result, your stomach doesn't empty properly.
Eating slowly also helps our digestion. Think of digestion as a chain reaction. As soon as we see, smell, or think about food (step 1), we start salivating to prepare for putting that food in our mouth (step 2). Saliva contains enzymes that break the food down, and moistens the mouth for easier swallowing.
What is a slime mold's reproductive cell called?
egg
spore
amoeba
protest
ERGENT!!!
Answer:
Spore
Explanation:
Hope u get it right!
Which of the following statements accurately explains why most cells are
small?
A. Small cells reproduce more slowly than larger cells.
B. Many small cells can transport more materials into and out of the
cell than a single large cell can.
C. Small cells reproduce more quickly than larger cells.
D. One large cell is able to transport more materials into and out of
the cell than many small cells are.
Answer:
B. Many small cells can transport more materials into and out of the
cell than a single large cell can.
Explanation:
when cells grow bigger, material can't cross the membrane fast enough so, they divide into smaller cells. This is why cells are so small.
Answer:
The ansswer might be B. Hope this helps. Please tell me if right or wrong.
Explanation:
What property of water allows fish and other animals to swim below the
frozen surface of lakes and rivers during the winter?
A. Solid water is denser than liquid water.
B. Solid water is less dense than liquid water.
C. Solid water is warmer than liquid water.
D. Solid water is colder than liquid water.
identify the kinds of support John will need through this chronic illness he is facing in his life?
Answer:
What chronic illness are you talking about?
Explanation:
The outside of a bacterial cell is protected by a structure called a ??
All of the following are likely to influence your response to stress EXCEPT
your friends level of stress
your personality
your general health status
your past experiences
Answer:
Ｉ ｔｈｉｎｋ ｔｈｅ ａｎｓｗｅｒ ｉｓ ｙｏｕｒ ｆｒｉｅｎｄ ｌｅｖｅｌ ｏｆ ｓｔｒｅｓｓ
Which event in Earth's history most directly allowed life to exist on land?
Earth's temperatures increased, causing widespread evaporation.
Earth collided with a large object, forming the moon.
Single-celled organisms released oxygen into the air when they photosynthesized.
Single-celled organisms absorbed harmful gases from the air when they first formed.
Answer:
c; Single-celled organisms released oxygen into the air when they photosynthesized.
Explanation:
Got it right on edge
Answer:
c
Explanation:
Precipitation that flows over the surface of the ground is called groundwater.
True or False
Answer:
true
Explanation:
Answer: true
Explanation:
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail.
Which statement best supports the theory that eukaryotic cells evolved
through endosymbiosis?
A. Eukaryotic cells can eat prokaryotic cells by engulfing them with
cell membranes.
B. All prokaryotic cells are covered by a stiff cell wall that protects
them.
C. Their chloroplasts contain DNA that is similar to that of
prokaryotes.
D. Chains of amino acids form inside tiny bubbles filled with organic
molecules.
Answer:
Their chloroplasts contain DNA that is similar to that of
prokaryotes
Explanation:
This is based on the theory that the membrane bound organelles of chloroplast and mitochondria which are peculiar to Eukaryotas evolved from bacteria by endosymbiosis. Thus bacteria contain the DNA of these organism Evidently, these organism (Eukaryotas) must have cohabited with bacteriA some time ago
Which of the following plant parts does the fruit develop from?
1) stigma
2 ) pistil
3 ) ovary
4)none of the above
Why are fossil fuels considered nonrenewable resources?
A. They take millions of years to form.
B. They cannot be used to create electricity.
C. They form quickly due to decaying biomass.
D. They require both sunlight and water to form.
Fossils fuels take millions of years to form which are considered nonrenewable resources. So, the correct option is A.
What are Fossils fuels?A fossil fuel is defined as a hydrocarbon-containing material which forms naturally in the earth's crust from the remains of dead plants and animals that is extracted and burned as fuel where as the main fossil fuels are coal, oil and natural gas.
Fossil energy sources include oil, coal and natural gas, are non-renewable resources that formed when prehistoric plants and animals died and were gradually buried by layers of rock. Fossils fuels take millions of years to form which are considered nonrenewable resources.
So, the correct option is A.
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Crossing a BB parent with a bb parent results in
Answer:
All dominant allele children with the genotype Bb
Explanation:
Use a punnet square to see how. It's quite simple when u learn the logistics :)
Hope this Helps!
When the two parental genotypes BB and bb are crossed, the genotype of all [tex]F_1[/tex] plants is Bb.
What is Genotype?An organism's genotype is defined as the complete set of genetic material that can also be used to refer to alleles or variants that occur in a particular gene or genetic locus.
The term "genotype" describes the genetic makeup of an organism as it describes the complete set of genes of an organism. This term can be used to refer to alleles, or variants of genes, carried by an organism.
When two organisms like BB parent crossed with bb parent, the offsprings that will produce is Bb.
Thus, when the two parental genotypes BB and bb are crossed, the genotype of all [tex]F_1[/tex] plants is Bb.
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Alleles are:
A)different genes
B)building blocks of DNA
C)proteins
D)alternate forms of a gene
Answer:
Alternate form of gene
Explanation:
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
Answer:
its D Alternate form of gene
Which option describes cations?
Answer:
D
Explanation:
A cation is a positively charge ion, such as a sodium ion, as when it becomes an ion, it gives away electrons, becoming positively charged.
The opposite is an anion, which is a negatively charged ion, such as oxygen as it receives elections from the cation when forming an ionic bond.
Cations are the positively charged ions.
What are cations?A cation has more protons than electrons, consequently giving it a net positive charge. For a cation to form, one or more electrons must be lost, typically pulled away by atoms with a stronger affinity for them.
The number of electrons lost, and so the charge of the ion, is indicated after the chemical symbol, e.g. silver (Ag) loses one electron to become Ag+, whilst zinc (Zn) loses two electrons to become Zn2+.
In contrast, most nonmetallic atoms have a stronger attraction to electrons than do metallic atoms, and as a result, they gain electrons to form anions.
Therefore, Cations are the positively charged ions.
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What is a herbivore?
A. an animal that gets energy from eating other animals
B. an organism that gets energy from eating only plants
C. an animal that gets energy by eating both plants and other animals
D. an animal that eats only herbs
An herbivore is an animal or organism that gets energy from eating only plants, which is present in option B. Examples are the goat, cow, etc., and they eat the producers, such as the plants.
What is the role of the herbivore?The herbivore is the animal that directly eats the plants of the ecosystem, which are later eaten up by the carnivore, and the herbivore gets more energy than the carnivore as they get energy directly from the plant source. The herbivore only eats plants, and the different ecosystems have different herbivores, such as the land ecosystem, which has the goat, elephant, cow, etc.
Hence, an herbivore is an animal or organism that gets energy from eating only plants, which is present in option B. Examples are the goat, cow, etc., and they eat the producers, such as the plants.
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which characteristic of life distinguishes a fire and a flowering plant? A. use of energy B. movement C. growth D. defined boundary
Answer:
A. Use of Energy
Explanation:
The United States government does not allow travelers from foreign countries to bring plants, fruits, vegetables, animals, or other living organisms into this country. State one biological reason for keeping these out of the United States. ?
Which of the following describes the difference between drama and other prose and poetry?
Unlike other literary genres, drama is written to be performed.
Drama is closer in length to a short story than it is to a novel.
Dramas do not contain a theme or lesson to be learned.
Dramas were only written before 1900 and are no longer written today.
Answer
es la a
Explanation:
es la a porque:
A. diferencia de otros géneros literarios, el drama está escrito para ser interpretado.
Answer:
A
Explanation:
Which of the following are likely to be affected by a magnet?
Answer:
an access card as some may contain metallic properties
Explanation:
electromagnets could also be used in the scanner so this could be tried
hope this helps
Which of these is a form of nonrenewable energy?
O A. Fossil fuel energy
O B. Solar energy
C. Wind energy
O D. Hydroelectric energy
Answer:
Fossil fuel energy
Explanation:
This is because oil from fossils take a millions of years to form and people won't be able to wait millions of years
Fossil fuel energy is a form of non-renewable form of energy. Thus, the correct option will be A.
What is Non-renewable energy?A non-renewable energy resource is a natural resource which cannot be readily replaced by the natural means at a particular pace which is quick enough to keep up with the consumption of the energy resource. An example of the non-renewable energy resource is a carbon-based fossil fuel. The original organic matter with the aid of heat energy and pressure generally becomes a fuel such as the oil or natural gas.
There are four major types of the nonrenewable resources which include oil, natural gas, coal, and the nuclear energy. Oil, natural gas, and coal are collectively known as the fossil fuels. Fossil fuels were formed within the Earth from the dead plants and animals over a period of millions of years and hence are named as the fossil fuels.
Therefore, the correct option will be A.
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Which of the following structures would be used to identify a prokaryotic cell? A. mitochondria, Golgi body and lysosomes B. cell wall, flagella and chloroplasts C. cell membrane, ribosomes and a chromosome
Answer:
the is b- cell wall,flagella and chloroplasts
Ecosystems are closed environments.
TRUE
FALSE
In affected colonies ________________.
a. There is no queen bee
b. The food stores remain untouched
c. There are dead bees everywhere
d. The comb has disintegrated
2. Colony collapse disorder will only affect the price of honey.
In ancient times, plant and animal remains got buried, compressed, and transformed into fossil fuels like coal. Burning these fossil fuels today will affect which biogeochemical cycle?
When used together, perspective and color variation create what effect for the
viewer?
A. A psychological reaction
B. The illusion of depth on a flat surface
C. The illusion that a three-dimensional object is flat
D. Temporary blindness
4. What is Card Stacking?
.Specific processes must take place within the cell for protein synthesis to occur. The processes that take place within a cell for protein synthesis to occur. Which occurs during translation but not during transcription? A DNA template is used to create an mRNA strand. A tRNA template is used to create a DNA strand. A tRNA template is used to create an mRNA strand. An mRNA template is used to create an amino acid chain.
Answer:
An mRNA template is used to create an amino acid chain.
Explanation:
Transcription is the first step in the protein synthesis process. Translation is the second.
Overall, the central dogma of biology is DNA->RNA->protein.
Transcription is that first step, DNA to RNA, and translation is RNA to protein: think of it like nucleic acids can just be transcribed, but nucleic acid to protein is like a whole different language, so it has to be translated. So the correct answer here is that mRNA is used to make amino acid chain (aka protein), which happens only in translation.
Match each word to its correct meaning.
Answer:
Radioactive decay means the process by which unstable nucleus of an atom spontaneously releases energy through the emissions of radiation used in dating fossils and rocks.
Relative dating mean the time required for half the atoms in an element to divide in half.
Explanation:
So radioactive decay belongs to A.
And relative dating belongs to B.
Please mark Brainlist if right
How do you know the molecule below is an unsaturated fat?
Η Η Η Η Η Η Η Η Η Η
L 1 1 1 1
|
H-C-C-C=C-C-C-C-C=C-C-C
1
1
HH HH
H
20
OH
A. The molecule contains carbon double bonds.
B. The molecule contains a carbon-oxygen double bond.
C. The molecule has no nitrogen atoms.
D. The molecule has an OH group on the end.
We know the molecule below is an unsaturated fat because the molecule contains carbon double bonds.
What is an unsaturated fat in molecule?An unsaturated fat is a fat or fatty acid in which there is at least one double bond within the fatty acid chain. A fat molecule made of chains where some carbon atoms are not fully saturated with hydrogen atoms.
Unsaturated fat, a fatty acid in which the hydrocarbon molecules have two carbons that share double or triple bond and are therefore not completely saturated with hydrogen atoms. Due to the decreased saturation with hydrogen bonds, the structures are weaker and are, therefore, typically liquid at room temperature.
Unsaturated fats are either monosaturated fats, as in olive or canola oils, or polyunsaturated fats, as in nuts, seeds, and seed oils
The correct answer is option A.
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