Answer:
an ANTIGEN
Explanation:
a foreign substance that invades your body is called an ANTIGEN. 8. When your body detects an antigen, antibodies are made and lock onto it. Once an antigen is recognized, your immune system can remember it the next time and protect you from getting sick again.
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identify the selectively permeable barrier of the cell that allows certain molecules to enter and exit the cell
-A
-C
-E
-F
Answer:
Choice E.
The plasma membrane is a selectively permeable barrier which allows only certain substances to enter and exit the cell.
The selectively permeable barrier of the cell that allows certain molecules to enter and exit the cell is F, which is the cell membrane or plasma membrane.
How cell membrane is composed?The cell membrane is composed of a lipid bilayer that separates the interior of the cell from the external environment, and contains various proteins that control the movement of molecules in and out of the cell.
The cell membrane is selectively permeable, meaning it allows some molecules to pass through while preventing others from crossing.
This is essential for maintaining the internal environment of the cell and regulating the exchange of nutrients, waste products, and other substances with the outside world.
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how to get rid of a corpse pls help
Answer:
I didn't think I'll be teaching again about this someday...
1.Why did you do it
2.What did it do to you?
3. I'm hungry
4. I'll help you after eating
5. Bye
6. *munch munch*
7. Corny right?
8. Bye again
9. Bye, for real
10.
Answer:
Ground burial.
Cremation.
Immurement.
Sky burial.
Burial at sea.
Composting.
Dissolution.
Other less common.
Explanation:
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what is the difference in height between low tide and high tide on wednesday
Answer:
The high tide is an ocean wave rising regularly and the low tide is the ocean wave falling regularly.
Explanation:
(Not sure what you meant by "on Wednesday".)
Scientists said that wherever there is a tiny speck of water on Earth, there is life. What do you think this tells us about the search for life?
Answer:
it's simple living organisms can't exist without water as trees and all other living things needs water. even water has been found in Mars which widely indicated that scientists believe in life on mars
Which of the following is not a reason that plants (and photosynthesis) is important for animals? question 1 options: because animals eat plants, absorbing the energy that those plants absorbed from the sun through photosynthesis. because animals need oxygen to breathe, and plants produce oxygen. because animals can use plants for shelter, raw materials, and medicines. because animals get their energy by absorbing light from the sun.
The statement that does not describe plants are important for animals is because animals get their energy by absorbing light from the sun.
What do you mean by Photosynthesis?
Photosynthesis may be defined as the process through which carbon dioxide gets converted into glucose in the presence of sunlight.
Animals get their indirect energy from sunlight. But to perform a functional role they depend on plants to perform the process of photosynthesis. Plants get energy directly by absorbing sunlight. This energy gets transferred to animals by various methods.
Therefore, the statement that does not describe plants are important for animals is because animals get their energy by absorbing light from the sun.
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A myosin head binds to which molecule to form a cross bridge?.
Answer:
Myosin heads form crossbridges with actin.
Explanation:
This binding only occurs after tropomyosin is removed from the binding site on actin following a conformational change of tropomyosin in response to Ca2+ binding to troponin.
What is the definition of TCMG
Trail Clube Minas Gerais
i think the answer is this...
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Distention of the stomach has a direct stimulatory effect on the gastric glands. Group startsTrue or FalseTrue, selectedFalse, unselected
After eating, gastric distention stimulates the onset of movements, having a direct stimulating effect on the gastric glands.
What are gastric glands?They are made up of secretory cells of different types and are located in different regions of the stomach.
They secrete gastric juice that contains hydrochloric acid, pepsin and mucus, which acts mainly on the digestion of proteins, and promote the absorption of nutrients.
Therefore, we can conclude that the statement "Distention of the stomach has a direct stimulatory effect on the gastric glands" is true.
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When homologous chromosomes fail to separate during meiosis, this is termed.
Answer:
Nondisjunction
Explanation:
Nondisjunction is the failure of homologous chromosomes (chromatids) to separate properly during meiotic cell division.
what is the stage of mitosis is represented in the picture
Answer:
Telophase
Explanation:
The picture shows that there are 2 dense balls which are recognized as cells. Since we see two cells with a boundary in between which is called the cleavage furrow we can recognie this as telophase where the mitosis is about to end and 2 daughter cells are about to emege.
An object that is 5mm (1mm = 0.001m) long looks 10cm long underneath a microscope. What is the magnification of this microscope?
This image shows a single litter of kittens.how are they similar to one another?
The kittens in the image are similar to one another because they are the same size and have a similar fur color pattern.
What is a similarity?A similarity is a specific feature two organisms or elements share.
How to identify the similarities?Carefully observe the image.Observe the features that are alike.What are the similarities in the kittens?All the kittens have a similar size, which is likely because they are the same age.All kittens have a similar fur pattern that involves white belly with spots.Note: This question is incomplete because the photo is missing; below, I attached the photo:
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Digestive hormones and the ____________ control the secretions of digestive juices. Gastric secretion is stimulated by looking at or smelling food.
Answer:
pancreas is the right answer
A biologist is conducting an experiment with seeds and will need many materials each week that will only be used one time before being discarded. What type of
management is involved in purchasing the consumable materials?
Equipment management
Regulation management
Supply management
Structure management
Answer: C. Supply management
A biologist is conducting an experiment with seeds and will need many materials each week that will only be used one time before being discarded. What type of management is involved in purchasing the consumable materials?
A: C. Supply management
Which of the following is more likely to be completed by a leader than by a manager?
A: B. Encouraging others to use their creativity
Multiple people became ill after eating the same produce in a restaurant dish. Which of the following food safety practices would help consumers the most?
A: D. Tracing the food item to its original source
Which of the following is a leadership skill that many people find to be one of the most important?
A: A. Communication
Hope this could help you!
What is the Keeling Curve and Why is it so Famous?
Answer:
The keeling curve is a commonly used graph that represents the concentration of carbon dioxide.
How do you "pray without ceasing" in your life?
Answer:
The first is a constant awareness and appreciation of the Lord's wonderful gifts to us. In addition, we should pray frequently about everything that we do. Third, a constant attitude of trust and dependency on the Lord.
Explanation:
Answer:
just pray about every good thing you have and pray about things you need want may want in the future.
Explanation:
What is the desertification of the sahara? question 14 options: the expansion of the sahara desert the study of the sahara desert the shrinking of the sahara desert the population of the sahara desert
Desertification is the change of a normal land in desert. The expansion of the Sahara desert refers to the desertification of the Sahara.
What is Sahara desert?Sahara desert is in Morocco. It is famous for its variety of land features but is most famous because of sand dune fields.
Desertification can leads to the reduction of the vegetation-covered area. The Sahara desert also is constantly expanding at a faster rate.
The cause of Sahara desertification includes both natural processes such as climate and human activities.
Thus the correct option is A.
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Which constituent of bile has a digestive function?.
The constituent of bile that has a digestive function is the bile acids.
Functions of bileThe bile is a fluid that is produced in the liver and stored in the gall bladder.
The bile consists of the following:
bile acids and salts, phospholipids, cholesterol, pigments, water, and electrolyte chemicalsThe component of bile that is used in digestion is the bile acids. These acids are used for the emulsification of fat, absorption of fats and fat-soluble vitamins in the small intestine.
Therefore, the constituent of bile that has a digestive function is the bile acids.
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what is NCF for nucleolus?
Answer:
The NCF and PAG are brainstem nuclei involved in a network mediating anti- and pro-nociception, as largely shown from animal data (Fields and Basbaum, 1999 for a review, [Porreca et al., 2002] and [Gebhart, 2004]). Human imaging studies have shown that the PAG and NCF are activated during visceral and somatic pain (Dunckley et al., 2005) and that the NCF plays a key role in the development of experimental secondary hyperalgesia via possible facilitatory pro-nociceptive mechanisms (Zambreanu et al., 2005). The NCF and PAG have been shown to be important in brainstem modulation of pain in humans (Zambreanu et al., 2005), and connections to these nuclei provide an anatomical basis for results of recent studies involving pain control and perception ( [Lorenz et al., 2003], [Valet et al., 2004] and [Wager et al., 2004]). The NCF has recently been shown to be critical for the generation of secondary hyperalgesia in humans
Explanation:
The NCF and PAG are brainstem nuclei involved in a network mediating anti- and pro-nociception, as largely shown from animal data (Fields and Basbaum, 1999 for a review, [Porreca et al., 2002] and [Gebhart, 2004]). Human imaging studies have shown that the PAG and NCF are activated during visceral and somatic pain (Dunckley et al., 2005) and that the NCF plays a key role in the development of experimental secondary hyperalgesia via possible facilitatory pro-nociceptive mechanisms (Zambreanu et al., 2005). The NCF and PAG have been shown to be important in brainstem modulation of pain in humans (Zambreanu et al., 2005), and connections to these nuclei provide an anatomical basis for results of recent studies involving pain control and perception ( [Lorenz et al., 2003], [Valet et al., 2004] and [Wager et al., 2004]). The NCF has recently been shown to be critical for the generation of secondary hyperalgesia in humans
The variation of gene expression that is not related to the variation of the DNA, is transmissible, and is reversible is described as
Epigenetics is the variation of gene expression that is not related to the variation of the DNA, is transmissible, and is reversible
What is epigenetics?Epigenetics is the variation of gene expression which is not related to changes in the sequence of nucleotides in a DNA molecule but is as result of the interaction of the environment and the diet.
Epigenetics changes are reversible and transmissible but do not alter the DNA sequence, but they can affect how the DNA sequence is read.
Therefore, the variation of gene expression that is not related to the variation of the DNA, is transmissible, and is reversible is described as epigenetics.
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Which model describes the movement of carbon dioxide and oxygen during
photosynthesis?
A. Plant - CO2 - 02
B. 02 - Plant - CO2
C. Plant - 02 - CO2
D. CO, - Plant - 02
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100 g of a milk powder contains 27 g of fat, 38 g of carbohydrate and 26 g of protein. Why do the totals of the nutrients not add up to 100 g?
The oscar is an aggressive fish native to South America. Many people in Florida keep oscars as pets. When these fish outgrow their aquariums, people sometimes release them into the Everglades. The largemouth bass was abundant in the Everglades until the oscar population increased. Today, oscars are much more common in the Everglades than largemouth bass. Which of the following would be the best method to increase the largemouth bass population in the Florida Everglades?
A. Move more largemouth bass into the Florida Everglades
B. Introduce a species of fish that will eat the oscars
C. Increase the food supply for both largemouth bass and the oscars
D. Make it illegal to release South American fish into the Everglades
The best method to increase the largemouth bass population in the Florida Everglades is to increase the food supply for both largemouth bass and the oscars
What are invasive species?Invasive species are species of organisms which when introduced into a new habitat are able to dominate and take over the resources of that habitat while displacing original species of organisms found there.
The oscars are invasive species and has taken over the habitat of the largemouth bass population in the Florida Everglades.
The best method to increase the largemouth bass population in the Florida Everglades is to increase the food supply for both largemouth bass and the oscars as this will allow both species to grow independently.
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Please help with this question
Which of the following best describes a benefit of non-renewable energy use?
A) Scientific advances now allow us to synthesize fossil fuels making them renewable
B) Ecosystems will be healthier as dangerous chemicals in fossil fuels are extracted for use as energy
C) Removing these energy sources will stabilize the abiotic factors in the ecosystem making them more resilient to change
D) The infrastructure to distribute this energy is already in place, therefore less surrounding environments need to be disturbed
Answer:
No d is the right answer.
Explanation:
Hope Its helpful for you!!
Everglades National Park, part of an elliptical speck in southern Florida on your chapter map, is an example of a __________ biome.
Everglades National Park in Florida (United States) is a well-known example of a temperate deciduous forest.
What is a temperate deciduous forest?A temperate deciduous forest is a type of biome characterized by deciduous trees whose leaves drop in the fall.
These biomes (temperate deciduous forests) are also characterized by their abundant moisture.
Everglades National Park includes two different biomes: temperate deciduous forest and flooded grassland.
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suggest which factor carbon dioxide oxygen or water might limit the rate of photosynthesis
Answer:
Explanation:
Oxygen is not required for photosynthesis so we should just cross it out of the list. Secondly, the factors upon which photosynthesis depend are sunlight, carbon dioxide and temperature. So this also puts an end to water. As for carbon dioxide, if its amount is increased, the stomata of leaves will close and will not allow more of it to enter and thus process of photosynthesis will eventually decrease. And if we decrease the amount of carbon dioxide, plant will not be able to make its food properly.
If a pea plant’s alleles for height are tt, what is true of its parents? (Select all that apply.)
Where T is tall and t is short.
- Both parents contributed a dominant allele.
- Both parents were short.
- Both parents contributed a recessive allele.
- Both parents were tall.
Answer:
Both parents contributed a recessive allele.
Both parents were short.
this is because a recessive allele will only express itself in the absence of dominant allele
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
The Correct choice is C
If plant's allele is tt, then it means that the plant got both short (recessive) allele from both parents.
A population of white moths moves into an area dominated
by grey moths. How do you think the introduction of white moths will impact
the grey moths? Explain your answer
Answer:
During the industrial revolution in England, the soot from the coal burning factories started dominating the environment. The trees were also darkened as a result and the light-bodies moths that were able to blend with the light-coloured lichens and tree barks were in danger due to their predation by the birds. This lead to the rapid decrease in the light-colored moths. As a result, the moths got adapted to the blackened trees with their transformation into dark-coloured moths which Increased rapidly. This was because the allele for the dark-bodied moths is dominant and the allele for the light-bodied moths is recessive. Since birds would find and eat the light-bodied moths, dark-coloured moths increased as a result of natural selection. Thus, these moths with a favorable adaptation to the change in the environment were selected and they reproduced new offspring.
Explanation:
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Which of the following are sustainable land-use strategies for minimizing the impacts of urbanization?
I. Reducing native plant landscaping in a city's center
II. Building high-rise business centers in a city's center
III. Providing affordable housing options in a city's center
A. II and Ill only
B. Il only
C. I and II only
Answer:
A
Explanation:
Building high-rise business centers in a city's center is a sustainable land-use strategy for minimizing the impacts of urbanization. Therefore, the correct statement is option B.
What is an effective strategy for minimizing the impacts of urbanization?The sustainable land-use strategies for minimizing the impacts of urbanization involve promoting environmental sustainability, economic viability, etc. Reducing native plant landscaping in a city's center has negative impacts on ecosystem services.
Native plants support local pollinators, which helps in reducing urban heat island effects and also improves the air quality of the area. Building high-rise business centers in a city's center is a sustainable land-use strategy as it minimizes the use of non-renewable resources and promotes social and economic benefits and conserves open spaces in the area.
Providing affordable housing options in a city's center may be included in a sustainable land-use strategy as it promotes social equity and economic viability. However, it can have negative impacts on the environment if there is increased energy consumption or replaces ecological habitats so it depends on the situation.
Therefore, building high-rise business centers in a city's center is a sustainable land-use strategy for minimizing the impacts of urbanization.
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Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits the flexibility and survival of a population in the face of changing environmental circumstances. What is an innate behavior some birds display in response to shortening day length, drop in temperature, or the beginning of winter
Answer:
Migration
Explanation:
The bird gets cold and quickly realizes that if he stays where he is, he will die. You have probably seen birds migrate in your life, I know I have. Birds migrate in large flocks or "V" shaped flocks. If you were to see migrating birds they would be around during the fall season.