The toll-like receptors do NOT directly lyse bound pathogens (Option C). These protein receptors play fundamental roles in the innate immune system.
Toll-like receptors (TLRs) are single-pass membrane-spanning protein receptors that play fundamental functions in the innate immune system.
TLRs are differentially expressed on the surface of antigen-presenting cells (i.e., macrophages and dendritic cells) in order to recognize evolutionary conserved antigenic domains in different pathogenic microorganisms (e.g. bacteria).
TLRs initiate innate immune responses such as, for example, inflammatory responses, by identifying conserved pathogen-associated molecule patterns (PAMPs).
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PLEASE HELP!
A. What kind of weather is associated with a low-pressure area?
B. What happens to the air of the low pressure areas that leads to this type of weather?
Answer:
clouds and precipitation that minimize temperature changes throughout the day
Explanation:
I just took the test and got an A on it
Two noncellular agents, smaller than viruses, are infectious RNA strands called ___ and infectious proteins called ___. prions; viroids prions; phages viroids; phages viriods; prions prions; capsomeres
Answer:
A. prions; viroids
Explanation:
What must happen to a chromosome for it to become chromatin?
Answer:
Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5). ... However, when eukaryotic cells are not dividing — a stage called interphase — the chromatin within their chromosomes is less tightly packed.
Explanation:
16. Which organelle may have allowed early eukaryotes to make food and produce oxygen? (a) the Golgi apparatus (b) the central vacuole (c) the plastids
Answer:
the plastids
Explanation:
Answer:
The plastids are the organelles that compose the cells of plants and algae. These contain chloroplasts, which allow them to capture energy from sunlight. If they are ever removed, these cells will eventually lose their ability to photosynthesize food without help from another organism - they have lost an essential organelle. Without the presence of this organelle, eukaryotes may not have been able to use sunlight as a mechanism for producing oxygen or making nutrients such as glucose available for consumption.
The organelle that may have allowed early eukaryotes to make food and produce oxygen is the plastid. The correct option is c.
What is plastid?The organelles that make up the cells of plants and algae are called plastids. These have chloroplasts, which enable them to absorb solar energy. These frequently include several kinds of pigments that can alter the color of the cell as well as pigments that are employed in photosynthesis.
These cells will eventually lose their capacity to photosynthesize food without the assistance of another creature if they are ever taken out since they have lost an important organelle.
Eukaryotes might not have been able to exploit sunlight to produce oxygen or make nutrients like glucose available for consumption without the presence of this organelle.
Therefore, the correct option is (c) the plastids.
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Secretory IgA is best described as _____.
A. an opsonizing antibody that facilitates uptake by M cells through Fc receptors
B. a monomeric IgA that neutralizes antigen effectively at mucosal surfaces
C. an inflammatory immunoglobulin that stimulates the chemotaxis of neutrophils into mucosal surfaces
D. a complement-activating immunoglobulin that causes destruction of invasive microflora through the membrane-attack complex
E. a non-inflammatory immunoglobulin that restricts the passage of antigens across mucosal surfaces
Answer:
d.
Explanation:
...
Group of different tissues working together to do a job
Answer:
organ
Explanation:
cell tissue organ organ system organism
Where are materials stored in single celled organisms?
Answer: Ribosomes most of the time.
Explanation:
Along one side of a DNA molecule, the nucleotides are connected to each other by ________ bounds between _______
Answer:
Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide.
Explanation:
Along one side of a DNA molecule, the nucleotides are connected to each other by covalent bonds between the phosphate group pf one nucleotide and the third carbon atom of the pentose sugar (deoxyribose sugar) in the next nucleotide.
How nucleotides are arranged in DNA?Two nucleotides are attached via a phosphodiester bond to form dinucleotide. Another nucleotides are added in same manner to form polynucleotide chain.
In this polynucleotide chain, the nucleotides are connected to each other by covalent bonds between phosphate group of one nucleotide and third carbon atom of deoxyribose sugar and forms a phosphate backbone of DNA.
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Describe the following features of processes evaluation leaching zone of accumulation and hardpan. PLEASE HELP ME ITS DUE IN 10 MINS. NO LINKS!!!
Explanation:
As soils mature, they develop soil horizons as organic matter accumulates and mineral weathering and leaching take place.
Which type of animal have thick skin and long Eyelashes?
Answer:
Camel
Explanation:
The concentration of sodium on the inside of the cell is 20 mM. The outside of the cell has a sodium concentration of 115 mM. Which mechanism of ion uptake would best move sodium from the inside of the cell to the outside? osmosis diffusion passive transport active transport.
Answer:
It's active transport
Explanation:
The mechanism of ion uptake that would best move sodium from the inside of the cell to the outside is active transport.
What do you mean by Ion uptake?Ion uptake may be defined as the process of movement of ions from one side of the membrane to the other.
Active transport helps in the movement of ions against the concentration gradient. It also requires energy. The active transport of small molecules or ions across a cell membrane is generally carried out by transport proteins that are found in the membrane.
Therefore, the mechanism of ion uptake that would best move sodium from the inside of the cell to the outside is active transport.
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Match each step of the scientific method on the left with the statement it describes on the right
(5,6 and 7)
Answer:
6 and 7
Explanation:
I don't know I need points
4. According to the data in Tables, which planet in the solar system has the greatest
what table?
Explanation:
17
Describe how temperatures above 35 °C most likely affect the structure
and function (be specific!) of starch synthase in the particular strain.
more science for you guys to help me with lolz
Answer:
Hi. Good evening.
Explanation:
The part labelled A is the cell membrane and the correct option to choose is the first one.
It serves as a passage to remove metabolic wastes in both cell X and cell Y.
Hope I'm right. Please remember brainliest.
Which theme is reinforced in the excerpt below from Shakespeare's Hamlet?
Rightly to be great
Is not to stir without great argument,
But greatly to find quarrel in a straw
When honor's at the stake. How stand I, then,
That have a father kill'd, a mother stain'd,
Excitements of my reason and my blood,
And let all sleep[?]
Answer:
To quote another answer I seen from this same question "I would say that the theme which is reinforced in this excerpt is impossibility of certainty - Hamlet is uncertain what he should do next, and he expresses that uncertainty in this soliloquy. "
Explanation:
Hope this helps :)
Answer:
complexity of action
Explanation:
FIRST ONE TO ANSWER GETS BRAINLEST ANSWER How does the skull's structure help it perform its function?
a. The skull has marrow in it which produces blood cells
b. The skull has sharp teeth which are used in eating
c. The skull is hard which protects the brain from being injured
d. The skull is flexible which allows the brain to grow
Answer:
c. The skull is hard which protects the brain from being injured
Explanation:
Answer:
The one that makes sense is C.) "The skull is hard which protects the brain from being injured." here's why:
Explanation:
The skull performs vital functions. Mainly, it supports and protects the head's soft tissues. The baby's skull is soft but as the bones developed, the bones of the skull form a tough, fibrous membrane and slowly fuse to form a single skull. The mandible is the only bone that separates from other parts of the skull. The skull or known as the cranium in the medical world is a bone structure of the head. It supports and protects the face and the brain. The adult skull has a total of 22 individual bones. They don’t move and united into a single unit. The skull performs vital functions. Mainly, it supports and protects the head’s soft tissues. The baby's skull is soft but as the bones developed, the bones of the skull form a tough, fibrous membrane and slowly fuse to form a single skull. The mandible is the only bone that separates from other parts of the skull. So, as our cranium grow it gets tough enough to protect the brain from injury!
hopefully I helped! have a great day!
The picture shows a model of a cell.
Answer:
What is showing is called a Chloroplast. They help the plant capture sunlight energy. So 'B' is the answer.
Explanation:
Answer:
B's your answer.To use energy from sunlight to make sugars
help or no branlest :(
Answer:
B is the correct answer
Explanation:
The skeletal and muscular system was designed to support our body's structure. Therefor making it the best fit answer.
Answer:
Skeletal and muscular systems
Explanation:
.
NEED IT ASAP!!! Which statement about the specific immune response is FALSE?
Clonal selection creates short-lived effector cells to destroy the specific antigen.
Clonal selection produces memory cells that are long-lived and can recognize the antigen in the future.
It takes about two weeks for memory cells to respond to an antigen.
The maximum response from effector cells takes about two weeks after the first time the body has been exposed to an antigen.
Memory cells divide to produce effector cells when they are exposed to their specific antigen.
Answer:
The answer is: Clonal selection produces memory cells that are long-lived and can recognize the antigen in the future.
Explanation:
mention any 2effect of drug substance
Nausea and Abdominal Pain
when oxygen is unavailable during heavy exercise what process do muscle cells use for energy generation?
Answer:
anerobic resperation
Explanation:
Bengai tigers the population has decreased in india because of what
Answer:
destruction of forests
Explanation:Unfortunately, this resulted in the loss of most of the Bengal Tigers habitat. Because of the destruction of forests, where tigers live, the Tiger population decreased dramatically. The new habitat space for tigers was scattered and very small. Many tigers died because they didn't have anywhere they could sustain to live.
Joanna was chewing gum and talking to her friend when suddenly she swallowed her gum. Which phase of swallowing was most likely involved in the accidental swallowing of her gum
The phase of swallowing that was most likely involved in the accidental swallowing of her gum is the pharyngeal phase.
There are different phases of swallowing is divided into three, namely:
oral phasepharyngeal phase andesophageal phaseThe oral phase is voluntary while the pharyngeal and the esophageal phase is involuntary.
The pharyngeal phase involves the movement of the bolus of food from the oropharynx into the esophagus.
Since the Joanna accidentally swallowed her gum, it is an involuntary action of the pharyngeal phase of swallowing.
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QUESTION 8
A cell has 14 chromosomes. How many chromosomes will it have after it undergoes cytokinesis in mitosis?
OA) 7
B) 28
OC) 14
D)2
E) none
Answer:
C) 14
Explanation:
There would be 2 daughter cells, but each would have 14 chromosomes
Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a white offspring in a cross: Bb x bb.
Answer:
50%
Explanation:
the probability of white offspring is fifty percent
PLEASE HELP ME IM TIMED!
Answer:
#3 Proteins
Explanation:
"There are four classes of macromolecules (polysaccharides or carbohydrates, triglycerides or lipids, polypeptides or proteins, and nucleic acids such as DNA & RNA). Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON)."
they overcame by the blood of the lamb and the word of their testimony
Answer:
Revelation 12:11
A study is conducted to evaluate the effect of competition between foxes and coyotes for a limited food source. Which level of ecology is being studied
Answer:
Community ecology!
Explanation:
I’m just did this assignment and got it right <3
A study is conducted to evaluate the effect of competition between foxes and coyotes for a limited food source. The level of ecology being studied is community ecology. The correct option is d.
What is community ecology?The ecosystem is the fundamental unit for maintaining life, although it extends beyond species living in a single location. The recycling of resources between organisms and their environments, between organic and inorganic forms, is essential to life.
Community ecology is the study of the structure and function of communities, which are assemblages of interacting populations of species living in a certain area or habitat.
A community in ecology is a group or association of populations of two or more different species that live in the same geographical area and at the same time, also known as a biogenesis.
Therefore, the correct option is d, community ecology.
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The question is incomplete. Your most probably complete question is given below:
molecular ecology
organismal ecology
population ecology
community ecology
The purpose of the foot of a molluscs is:
Answer:
Foot of a molluscs is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study.