Answer:
Newton's Second Law of Motion states that when a force acts on an object, it will cause the object to accelerate.
Example:
#1. When you hit a baseball, it accelerates. It does not remain inactive.
#2. When wind blows a leaf off of a tree, it falls to the ground. It does not float in the air.
Population density is the number of individuals per unit area.
Answer:
Explanation:
The population density of an area is a demographic tool used to measure the number of organisms or individuals in a particular area.
It is expressed as;
Population density = [tex]\frac{number of organisms}{area of the place}[/tex]
The unit is expressed as organisms/km²
An area with a high population density is often not desirable as it can lead to pressure on amenities and infrastructure.
an you identify the steps in the scientific method that correspond to hunt's experiments? drag each statement under the step in the scientific method that it demonstrates.
identify the steps in the scientific method that correspond to hunt's experiments is
Observation: Mice in plastic cages that had been treated with strong soap had eggs that had cell division issues that resulted in genetic abnormalities.
Hypothesis: Exposure to bisphenol A affects the prevalence of genetic defects in mice.
Prediction: Mice exposed to high amounts of bisphenol A will have an increase in the incidence of genetic anomalies.
What is Morgan hunt's experiment?
Morgan's arguments against the Mendelian and chromosomal theories were very different. Both hypothesized cellular structures or substances that somehow regulate developmental processes in an effort to explain biological occurrences. This reminded Morgan too much of the preformation theory, which held that the adult is already fully formed in the egg or sperm and dominated embryology in the late 18th and early 19th centuries.
Morgan contended in 1909 and 1910 that no single chromosome could contain particular hereditary qualities, despite the fact that he acknowledged that the chromosomes might have something to do with heredity. Additionally, he asserted that Mendelian theory was completely hypothetical because it was unable to define the actual processes of heredity, despite being able to explain and even forecast breeding outcomes.
For Morgan, the fact that each pair of chromosomes divides and that each chromosome thereafter enters a different sperm or egg cell in precisely the same way as Mendelian factors did not seem to be sufficient evidence to support the idea that the two processes are related.
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Which of the following is not made of cell(s)? Bacteria, virus, protist, fungi, animals?
Answer:
Viruses
Explanation:
Because Viruses are not a type of bacteria that helps people
When bacteria have multiplied at least 1000 times, what is the pattern of growth that can be seen with the naked eye is called?
A. cluster
B. family
C. clump
D. colony
Answer:
They are called a Colony so the answer would be D
Explanation:
Enjoy the correct answer
why sun isnt in the food web
Answer:
Producers produce their own food, but higher organisms must consume plants or other animals in order to survive.
Producers would die if they did not take steps to convert
sunlight into food, and customers who rely on them would lose their food supply and die as well.
Explanation:
-
Aroms are most stable when they have... electrons in their outermost shell?
Answer:
yes
Explanation:
Water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane. This type of passive transport is called
Water molecules move across the plasma membrane in a type of passive transport called diffusion.
What is diffusion?The process of diffusion is a type of passive transport in which solutes such as small molecules move across the cell membrane to equal concentration in both sides of the membrane.
In conclusion, water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane, which is a type of passive transport called diffusion.
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The difference between gene therapy and other forms of genetic engineering is
A) Gene therapy involves placing genes from individuals of one species into an
individual of the same species.
B) Gene therapy is a new branch of genetic engineering.
C) Scientists have been much more successful using the techniques of gene therapy
than the scientists working in other area of genetic modification.
D) Gene therapy involves replacing damaged genes with helping genes.
Answer:
D) Gene therapy involves replacing damaged genes with helping genes.
Explanation:
Mutations are spontaneous changes that occur within DNA. These can be somatic, occurring in body cells, or germline, in gametes. Some mutations are harmful or deleterious, affecting an individual's ability to survive or quality of life.
Thus, therapeutic methods involving altering harmful genes or their products were created. These are a form of genetic modification, which involve multiple biotechnological applications and techniques. However, genetic engineering specifically uses recombinant gene technology.
in an epithelium, the apical membrane is also known as the membrane. in an epithelium, the apical membrane is also known as the membrane. basement nictitating serosal mucosal basolateral
In an epithelium, the apical membrane is also known as the Mucosal membrane.
What is apical membrane?In contrast to the basolateral membrane, the plasma membrane that makes up the lumenal surface of a polarized cell is known as the apical membrane. This applies to all polarized cells, including neurons and epithelial cells in particular.
The epithelial cells' tight connections at the apical surface stop proteins from migrating to the apical membrane. Thus, despite being different from the apical surface, the basal and lateral surfaces continue to be nearly equal to one another.
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brainliest to a correct anwer
mr. jones has blood type A and mrs. jones has blood type AB. what is the probability that they will have a child with blood type A if both of mr. jones's parents were AB?
Answer:
the correct answer its 50 %
Why can’t your body heal an amputation the same way it can heal a cut?
Answer:
because the mother sells are less for that kind of cuts so they don't regenerate and in a cut its easier because they are just in number for that cut
Explanation:
Which term is described as body systems working together to regulate the internal environment?
O A. bioanalysis
OB. symbiosis
O c. homeostasis
O D. circulation
PLS HURRRYY
The energy-absorbing molecules of plant cells are located in the ______.
a thylakoids
b stroma
c nucleus
d mitochondria
Answer:
Thylakoids
Explanation:
A student is collecting the gas given off from a plant in bright sunlight at a temperature of
27C. The gas being collected is probably
A) oxygen
B) carbon dioxide
С) АТР
OD) glucose
Answer:
A) oxygen
Explanation:
The gas given off will most probably be oxygen gas.
On a bright sunny day, plants will undergo the process of photosynthesis. It is the process by which green plants manufacture food. In this process, carbon dioxide is combined with water to produce glucose and oxygen gasGlucose is a compound stored in plantsThe by-product is oxygen gasThe student will most likely collect the oxygen gas.
a population of antelope normally graze on the abundant grasses in the savannah. however, a drought occurs and the amount of grass decreases. that year, many young, sick, and old antelope starve to death. a change in what variable lowered the antelope's population?
A change in carrying capacity lowered the antelope's population.
Carrying Capacity: An environment that can support the maximum population size of a species to sustain and grow its population is called carrying capacity. It is different for each species in a habitat because every species requires particular food, shelter, and social requirements. When a population approaches its carrying capacity, the rate of increase in a population usually slows and the birth rate equals the death rate.
A population of antelope normally graze on the abundant grasses in the Savannah. However, a drought occurs and the amount of grass decreases. That year, many young, sick, and old antelope starve to death. the antelope's population was lowered by a variable known as carrying capacity.
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Please help! I’ll give brainist
ummm actually ur right
Which gas directly increases the global temperature the most?
Answer:
Greenhouse Gases
Explanation:
A greenhouse gas (GHG) is any gas in the atmosphere that absorbs and emits radiation in the thermal infrared range. These are the fundamental cause of the greenhouse effect, which results in increased temperatures on Earth.
Answer:
CO2 increases global warming temp the most followed by CFCs ( chlorofluorocarbons) which are used in refrigerators and ACs but now banned.
please answer this question
Answer:
The trend shows that the Enzyme Pepsin is active and prefers the pH level of 2. While Trypsin Is much active at pH 8 and prefers that pH level.
Explanation:
You can tell by seeing the enzyme activity compared to the pH range. Enzymes are simply proteins which work around your body so pepsin since it is active in acidic levels (pH 2) is probably an enzyme found in the stomach.
The trend shows that the Enzyme Pep sin is active and prefers the pH level of 2. While Trypsin Is much active at pH 8 and prefers that pH level.
What are the functions of enzyme pepsin?Pepsin is an endo peptidase that breaks down proteins into smaller peptides. It is produced in the gastric cells of the stomach lining and is one of the main digestive enzymes in the digestive systems.
Pep sin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pep sin as an in active zymogen called pepsinogen.
In the digestive tract pepsin effects only partial degradation of proteins into smaller units called peptides, which then either are absorbed from the intestine into the bloodstream.
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- DNA contains four types of nitrogenous bases. One of these bases is
A.)thymine.
B.) glucose.
C.) ribose.
D.) uracil.
Answer:
thymine
Explanation:
the answer is thymine I'm 100% sure
a common sign of pneumothorax is a shift of the trachea towards the affected lung as air pressure sucks the lung away from the midline
The statement is false that in pneumothorax there is a shift of the trachea towards the affected lung as air pressure sucks the lung away from the midline.
Pneumothorax is the condition where the lung collapses. All the air present inside the lungs is pushed out. There occurs a tracheal shift to the opposite side during the lung collapse, but the lung is not moved away from the midline.
Lungs are the main respiratory organ of the body. They are involved in the exchange of air from the blood. The lungs comprise of several very small air sacs called alveoli. These alveoli increase the surface area of the lung and hence increase the ventilation.
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flagella and cilia of eukaryotic cells require a cytoskeleton composed of to function properly
Flagella and cilia of eukaryotic cells require a cytoskeleton composed of microtubules to function properly.
Cytoskeleton is a com plex of proteins that helps in maintaining the shape and integrity of a cell. It provides mechanical support to the cell. The different proteins found in the cytoskeleton are: microtubules, actin and intermediate filaments. The microtubules are the largest proteins while the actin are the smallest.
Microtubules are the part of cytoskeleton. it is made up of monomer tubulin protein. It is a dimeric structure. The individual strand of protein is called a protofilament. The protein consists of a plus end and a minus end.
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How is Matter cycled in ecosystems?
Answer:
All matter goes back into carbon dioxide, water, and minerals
Explanation:
Matter cannot be created or destroyed. There is a constant cycle of matter that repeats itself.
In which type of solution are the cells
Answer:
A cell in an isotonic solution is in equilibrium with its surroundings, meaning the solute concentrations inside and outside are the same (iso means equal in Latin). In this state there is no concentration gradient and therefore, no large movement of water in or out.
Explanation:
What is the first step of DNA replication?
A. Free nucleotides bond together in the correct sequence.
B. A single-stranded RNA molecule forms.
C. The DNA transfers its information to RNA through an amino acid.
D. The DNA molecule unzips along weak hydrogen bonds.
Answer:
D
Explanation:
The first step in DNA replication is to 'unzip' the double helix structure of the DNA molecule. This is carried out by an enzyme, called helicase which breaks the hydrogen bonds? holding the complementary bases of DNA together
DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. The option (D) is correct.
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
Moreover, DNA must replicate (copy) itself so that each resulting cell after mitosis and cell division has the same DNA as the parent cell. All these cells, the parent cell and the two new daughter cells, are genetically identical.
Therefore, DNA replication is the process of creating two identical daughter strands of DNA. DNA replication occurs in the nucleus in eukaryotic cells and in the nucleoid region in prokaryotic cells. DNA replication occurs in S phase during the cell cycle prior to cell division.
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6. Which of the following is a push factor for urbanization?
A. The crash in the agricultural sector.
B. The availability of education.
C. Better infrastructure
D. More entertainment options
Answer:
a or c i dont really know which one
Explanation:
2. Which of the following does not describe an effect
of the Industrial Revolution?
a. Fossil fuels became important energy sources.
b. The amount of land and labor needed to
produce food increased.
c. Artificial substances replaced some animal and
plant products.
d. Machines replaced human muscle and animal power.
I would have to go with option B. The amount of land and labor needed to produce food increased
Hope this helps
The amount of land and labor needed to produce food increased. Therefore, option (B) is correct.
The Industrial Revolution mechanised agriculture, increasing food production efficiency and reducing land and labour needs. The plough, seed drill, and motorised reaper enabled greater, more productive farming with fewer employees.
a, c, and d describe Industrial Revolution effects:
a. Fossil fuels powered manufacturing, transportation, and machinery during the Industrial Revolution.
c. Chemical companies created synthetic materials like plastics and synthetic fibres, which supplanted natural materials in numerous uses throughout the Industrial Revolution.
d. Machines supplanted human muscle and animal power: The Industrial Revolution's use of equipment in industrial processes displaced human and animal labour. This transformed industry and greatly enhanced production. Therefore, option (B) is correct.
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Megan wants to see if mice that are fed food A or B grow at a faster rate. She measures the mass of the mice on day 1,
then divides them into two groups based on the type of food they will be given. She feeds each group the same amount of
food at the same time each day. Does Megan have a control group in this experiment?
Answer:
No, there is no control group.
Explanation:
To test various theories, experiments are usually conducted under a number of different conditions. Several considerations must be established when planning studies to ensure reproducibility, accuracy, and validity of findings.
For example, while controls are kept constant, or unmanipulated. Also, separate independent variables are strictly altered and analyzed - this guarantees validity and may show whether external influences affected the experiment. Here the variable being altered or measured is the food, and the resultant weight is the factor being observed.
Which Anuran tends to lay eggs in long strands?
A.)Salamander
B.)Frog
C.)Caecilian
D.)Toad
Answer:
d
Explanation:
toad
What is the difference between the Greenhouse Effect and Global Warming?
Answer:
Global warming is the change in the climate of the earth causing it to heat up whereas the greenhouse effect is a naturally occurring phenomena, constantly occurring due to the atmosphere and sunlight.
Plankton are most commonly found in the?