A flap of tissue called the epiglottis sits over the top of the trachea. This flap blocks food and drink from going down into the trachea when you swallow. But in some cases, food or drink can enter the trachea. It may go down as you swallow.
Answer:
Larynx
Explanation:
Describe What
happens to a planarian when
it is cut into two pieces?
Which blood cell is most abundant?
Polysaccharides are made of?
a. One glucose molecule
b. Many glucose molecules
c. Many fatty acids
d. DNA
Answer:
b. Many glucose molecules
Explanation:
poly means many
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Please help with these questions!!
help me pleaaaasseee!!!?? explain how locusts affects crop production and how it can be prevented...
I think this will help
Explanation:
good luck. :)
The area of the cell that is associated with the production of ribosomes is the:
1. nucleolus
2. nucleus
3. nuclear pores
Answer:
Nucleolus
Explanation:
This is a more technical answer. The Nucleolus is located inside the nucleus and this is the location where the ribosomes are produced. They then leave through the nuclear pores to be sent out into the cell.
The area of the cell that is linked with production of ribosomes is nucleolus. The correct option is 1.
What is nucleolus?The nucleolus is a circular shape within the nucleus of cells that produces and assembles the cell's ribosomes. Ribosomal RNA genes are also transcribed in the nucleolus.
The nucleolus has the most visible realm in the nucleus of a eukaryotic cell, and its basic task is ribosomal RNA (rRNA) melding and ribosome biogenesis.
The nucleolus, as the site of ribosome biogenesis, is critical to cell metabolic activity.
It is made up of ribosomal DNA (rDNA), which is found in tandem arrays in nucleolus event coordinator regions.
The nucleolus synthesizes ribosomal subunits from proteins and ribosomal RNA, or rRNA.
It then starts sending the subunits to the rest of the cell, where they join together to form complete ribosomes.
Thus, the correct option is 1.
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What will determine whether or not mutations will be passed to offspring?
Tara is making a model of
the solar system for her class project. Which of
the following choices states the correct order in
which she should put the planets, starting with
the one closest to the sun
A: Earth, Mercury, Venus, Mars, Saturn, Jupiter, Neptune, Uranus
B: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
C: Venus, Mercury, Earth, Jupiter, Neptune, Uranus, Mars, Saturn
D: Mars, Mercury, Earth, Jupiter, Venus, Neptune, Saturn, Uranus
Answer:
B! That's the order of the planets!
Monosaccharides are to carbohydrates as ___
are to proteins.
Answer:
Amino acids
Explanation:
Answer:
AMINO ACIDS
Explanation:
AMINO ACIDS ARE THE MONOMERS OF PROTEINS
A catalyst is a ______.
Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Answer:
A substance that speeds up chemical reactions.
Explanation:
13. What is formed when two or more organs work together to carry out a specific function? (1 point)
A connective tissues
B organ systems
C specialized organs
D eukaryotic cells
Answer:
B
Explanation:
organ system is two or more organs working together to perform a specialized function.
natural selection is an example of a mechanism of evolution. does this mechanism produce a change in individuals or populations? explain
Natural selection refers to the procedure where the species better amended to their surrounding appear to survive and generate more offspring. Natural selection refers to one of the mechanisms that make modifications in the frequencies of genes in populations and thus, it is the mechanism of evolutionary change.
However, the phenomenon of genetic drift and natural selection cannot take place unless and until there is a genetic variation, that is unless some individuals are genetically distinct from others.
Please help I forgot to study!!!
pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
can someone help plssssssssssss
Answer:
Distrupted
Explanation:
the main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.
Answer:
To this Extent - Distrupted
The main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.
1. Calculate the density of a piece of wood with a volume of 216cm3 and a mass
of 64g
Answer:
Density = Mass/Volume
Density = 216cm3/64g
Density = 3.375 g/cm3
Let me know if this helps!
Which of the following objects absorbs the most light?
Answer:plants
Explanation:
Answer:
D a wool carpet
Explanation:
is the answer
Which of the following is part of the basis of a capitalist economic system?
a competition
C. coordination
b. conflict
d. exchange
Please select the best answer from the choices provided
A
B
ОООО
С
D
Answer:
I believe the answer is A competition sry if wrong
Explanation:
The following is part of the foundation of a capitalist economic system: the presence of competition in the market, which is present in Option A, as competition allows different businesses to thrive.
What is the capitalist economic system?In a capitalist economic system, the market is operated by the private sector or corporations for profit, such as factories and businesses, where the government plays a very minor role in regulating them, although different countries have different laws regarding this. Competition among businesses is fierce in the capitalist economic system, which leads to more work for employees, more innovation, and job creation.
Hence, the following is part of the foundation of a capitalist economic system: the presence of competition in the market, which is present in Option A, as competition allows different businesses to thrive.
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Which plays a major role in determining which genes are expressed in a cell?
A. transcription factors
B.nothing, it is random
C.translating into spanish
D.your mother
Answer:
A.
Explanation:
A crucial component of controlling transcription is played by proteins known as transcription factors. These crucial proteins aid in identifying the genes that are active in each of your body's cells. Thus, option A is correct.
What is the role of transcription factors?Proteins called transcription factors control the expression of genes. They affect the transcription process, in which DNA serves as a template to create mRNA, which in turn affects protein synthesis.
Since many transcription factors are either tumor suppressors or oncogenes, cancer is linked to their mutations or abnormal regulation.
It is known that three transcription factor groups play crucial roles in human cancer.
Therefore, transcription factors play a major role in determining which genes are expressed in a cell.
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How many fundamental laws of inheritance did Gregor Mendel come up with?
Answer:
The three laws of inheritance proposed by Mendel include: Law of Dominance. Law of Segregation. Law of Independent Assortment.
Explanation:
When lions prey on a herd of antelopes, some antelopes are killed and some escape and live to reproduce. Which of the following statements best describes this situation?
A. Natural selection is a random process.
B. Individuals with the best adaptations survive long enough to have offspring.
C. Species remain unchanged throughout time.
D. Individuals pass along acquired characteristics to the next generation.
Answer:
B.
Explanation:
How have plants evolved?
Give at least 5 examples.
Answer:
Over time, plants had to evolve from living in water to living on land. In early plants, a waxy layer called a cuticle evolved to help seal water in the plant and prevent water loss. ... To allow the plant to retain water and exchange gases, small pores (holes) in the leaves called stomata also evolved (Figure below)
Explanation:
1 DNA evidence suggests that the first eukaryotes (green plants) evolved from prokaryotes (through endosymbiotic events) between 2500 and 1000 million years ago. ... Cyanobacteria have a close evolutionary relationship with eukaryotes. They have the same photosynthetic pigments as the chloroplasts of algae and land plants.
2Plants adapt their growth, including key steps in their life cycle such as germination and flowering, to take advantage of environmental conditions. ... All land plants evolved from an aquatic ancestor, and it was after colonisation of the land that the gibberellin mechanism evolved.
3 700 million years ago
The researchers found that land plants had evolved on Earth by about 700 million years ago and land fungi by about 1,300 million years ago — much earlier than previous estimates of around 480 million years ago, which were based on the earliest fossils of those organisms.
4 The earliest trees were tree ferns, horsetails and lycophytes, which grew in forests in the Carboniferous period. The first tree may have been Wattieza, fossils of which have been found in New York State in 2007 dating back to the Middle Devonian (about 385 million years ago).
5 Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.
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Shortage of food plants, erosion of land, and decrease in oxygen levels are all effects of
Immigration
Deforestation
Mining
Trade
Answer:
Deforestation
Explanation:
I took this quiz and got a 100.
How are the three international conflicts similar and how are they different?
Answer:
what's the question? It is not showing anything expect for "How are the three International conflicts similar and how are they different."
Which two statements describe what happens to the nucleus of an atom
during a fission reaction?
A. A small amount of the energy in the nucleus is converted to
mass.
B. Nuclei with small masses combine to form nuclei with larger
masses.
C. Large nuclei break apart into two or more smaller nuclei.
D. Each nucleus formed has fewer protons than the original nucleus
had.
Answer is c and d
Answer:
Answer is c and d
Explanation:
A negative feedback loop is a reaction that causes a decrease in function. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
What is baseline imbalance?This is simply known as a form of art that pertains to systematic error when producing an intervention groups in any clinical trial. In this type of imbalance, the groups differ in baseline traits due to the fact that the participants were selected or assigned.
There are different ways to balance a load. Why is the figure considered to be an example of a negative feedback system as opposed to a positive feedback system is that The figure shows the correction of an imbalance back to a baseline.
Therefore, A negative feedback loop is a reaction that causes a decrease in function. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
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All the different organisms that interact in a pond make up
A a community
B the water cycle
C a population
D the habitat
when a sperm and egg cell combine, the new cell called a zygote contains:
1: 46 chromosomes
2: 23 pairs
3: 22 chromosomes
4: no pairs
Answer:
2, 23 pairs
Explanation:
it is honestly the only one that makes sense
This is for Earth and Space but that wasn't a choice to pick.
Which statement best explains the impact of unfavorable oceanic conditions on human behavior?
1. Boating activities decrease along shorelines.
2. Families move toward shorelines.
3. People spend less time playing at the beach.
4. Recreational water sports increase on beaches.
What is an example of capital resource?
O workers
O oil
O machines
O forests
Explanation:
machines ..................................
the cells produced during meiosis are?
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. During reproduction, when the sperm and egg unite to form a single cell, the number of chromosomes is restored in the offspring.
Explanation:
sourced from nature.com
The diagram shows the process of osmosis in a beaker model. Only the water molecules could pass through the membrane by osmosis because water molecules________.
a) contain more hydrogen atoms than the other molecules
b) have more energy than protein molecules
c) can pass through the selectively permeable membrane
d) are more numerous than the protein molecules
Answer:
i think it is C correct me if am wrong
