How might human population growth result in a tragedy of the commons?
A. Each birth is a common resource for the population.
B. All people use natural resources to survive.
C. People are the most important resource on Earth.
D. People have more in common than they realize.
Answer:
B: all people use natural resources to survive.
Explanation:
23. Power equals
A.Speed plus endurance
B. Strength times speed
C. Speed times velocity
Neither, power= energy/time
Which one of the following human activities is the greatest threat to biodiversity?
A. Habitat destruction
B. Climate change
C. Introduced species
D. Pollution
E. Overharvesting
Answer:
Overharvesting
Explanation:
Too much harvest and planting causes the soil to wear down and be less useful.
Answer:
B) Climate Change
Explanation:
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Which process do scientists think provided Earth with an oxygen-rich atmosphere?
photosynthesis
respiration
radiometric dating
spontaneous generation
Answer:
Photosynthesis
Explanation:
Tiny organisms known as cyanobacteria, or blue-green algae conducted photosynthesis using sunshine, water and carbon dioxide to produce carbohydrates and oxygen.
how many chromosomes are in the daughter cells after meiosis is completed?
Answer:
23 chromosomes
Explanation:
Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II.
Answer:23. Just take half of 46 away and there's your answer.
Explanation:
The blind mole rat is a close relative of other rats. however, mole rats live underground for their entire lives. as a result, their eyes have evolved into useless structures. presumably, mole rats will not have eyes at all in the distant future. what type of structures are the mole rats eyes?
a.
vestigial structure
b.
developmental structure
c.
homologous structure
d.
analogous structure
Answer:
A. vestigial structures
Explanation:
Vestigial structures are those that serve no purpose in current organisms, but were useful to ancestors of those organisms.
How is a plant cell built?
Answer:
Plant cells are eukaryotic cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae. Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or centrioles, except in the gametes, and a unique method of cell division involving the formation of a cell plate or phragmoplast that separates the new daughter cells.
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Suppose that somite stem cells commit to their cell fates by three days post fertilization. Which result would be MOST likely in the chick embryos receiving somites transplanted in the reverse order
The organs arising from quail somites develop in the reverse order because transcriptional programs activated in the nucleus can't be reversed.
What is a Nucleus?This is referred to as the part of the cell which is membrane bound and contains chromosomes.
The fate of the chick embryos receiving somites transplanted in the reverse order is mentioned above.
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why photosynthesis is known as the pathway for energy
Answer:
Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die. It transforms light to chemical energy.
that's why it's called the pathway to energy.
Explanation:
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Insulin, a nonsteroid hormone, binds with a cell membrane receptor causing activation of proteins inside the cell. What would you consider insulin to be in this example
We consider insulin to be Protein activator because it is responsible for the activation of protein inside the cell.
What is activator?Activators are those molecules that bind themselves to a substance and increase their activity. These molecules are the opposite of inhibitors that prevent a substance from doing its function.
So we can conclude that we consider insulin to be Protein activator because it is responsible for the activation of protein inside the cell.
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Asthma is a condition that causes the airways to constrict, limiting the amount of air that can make it into the lungs. Asthma attacks are generally caused by allergens in the environment and
the overreaction of which body system?
A.Circulatory
B.Digestive
C.Integumentary
D. Immune
Answer:
immune.
the answer is D.
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3. A cell with 10 chromosomes undergoes mitosis.
(b) How many chromosomes does each daughter cell have?
Answer:
In a cell with 10 chromosomes undergoes mitosis, the result are 2 daughter cells each with 10 chromosomes
Explanation:
Cells have the ability to reproduce or replicate through 2 processes:
Mitosis
Meiosis
Mitosis differs from meiosis because the final result is always
2 daughter cells
The daughter cells are identical to the mother cell and this includes the same number of chromosomes
This means in mitosis 1 cell with 10 chromosomes leads to two identical cells each with 10 chromosomes.
Compare and contrast the left and right hemispheres of the brain, briefly describing their primary functions.
The Split-brain theory describes the differences between left brain and right brain characteristics, functions, and understand the dominance brain.
What is split-brain theory?The split-brain phenomenon is caused by the surgical severing of the corpus callosum, the main route of communication between the cerebral hemispheres. The classical view of this syndrome asserts that conscious unity is abolished
The left brain handles reading, writing, and calculations. Some call it the logical side of the brain whereas The right brain is more visual and deals in images more than words. It processes information in an intuitive and simultaneous manner.
The left hemisphere controls the muscles on the right side of the body while the right hemisphere controls those on the left.
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State similarities and differences between the laboratory thermometer and the clinical thermometer
Answer:
Its simple
Explanation:
Answer: Similarities Both thermometers are used to measure temperature and both of them use mercury. Differences Clinical thermometer is used to measure human body temperature whereas laboratory thermometer is used to measure temperature of other object which has higher temperature than human body temperature.
A genius IQ is considered anything over 144. Let's pretend that
this is a genetic condition and that it is recessive. Genius IQ
is found in approximately 1 in 625 people worldwide (this is a
true statistic). Calculate the following:
1. The frequency of the recessive allele (genius IQ).
2. The frequency of the dominant allele (normal).
3. The percentage of heterozygous individuals (carriers).
According to the question, The percentage of heterozygous individuals (carriers). Thus, option "C" is correct.
What is the Hardy-Weinberg equilibrium theory?The Hardy-Weinberg equilibrium theory states that the allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,
p is the frequency of the dominant allele,
q is the frequency of the recessive allele.
The genotypic frequencies after one generation are
p² (H0m0zyg0us dominant genotypic frequency),
2pq (Heter0zyg0us genotypic frequency),
q² (H0m0zyg0us recessive genotypic frequency)
Thus, option "C" is correct.
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molecules can have each of these forms of energy except
Molecules can have each of these forms of energy except light energy. The correct option is A.
What are molecules?A molecule is the smallest unit of a substance that keeps its content and properties. It is made up of two or more atoms that are joined together by chemical bonds.
Chemistry is built on molecules. The element symbol and a subscript indicating the number of atoms are used to identify molecules.
Single, neutral particles make up an atom. As neutral objects consisting of two or more atoms joined together, molecules are. A positively or negatively charged particle is called an ion.
There are three different kinds of molecules: atom-sized molecules, element-sized molecules, and compound-sized molecules.
Except for light energy, molecules can possess all of these types of energy.
Thus, the correct option is A.
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Your question seems incomplete, the probable complete question is:
Molecules can have each of these forms of energy, except:
A. light energy
B. Chemical energy
C. Sound energy
D. Kinetic Energy
What is thought to have caused the extinction at the end of the Cretaceous period
Answer:
To answer your question the most common belief of the mass extinction of the Cretaceous period was due to an asteroid impact.
Explanation:
Which structure allows the diaphysis of the bone to increase in length until early childhood?.
Answer:
Epiphyseal Plate
Explanation:
Nick is smiling even though he does not feel happy. After a short time he feels happier. The best explanation for Nick's change in mood is
O bottom-up processing
o facial feedback
selective encoding
O justification of effort
o facial feedback
When someone replicates a emotion, they tend to feel it
Nick is smiling even though he does not feel happy and after a short time he feels happier too. This change in mood is due to facial feedback. Therefore, the correct statement is option B.
What is the facial feedback mechanism?Facial feedback is a psychological theory that suggests that the expression on a face of a person can influence their emotions and mood also. Therefore, when a person smiles even when they are not feeling happy, it can trigger positive emotions in the brain that change in mood.
Nick is smiling even though he is not feeling happy. Therefore, this act of smiling can trigger positive emotions in his brain and changes his mood because of the facial feedback mechanism.
However, bottom-up processing is the processing of sensory information from the environment to create a perception, while selective encoding is a process of selectively attending to and encoding certain aspects of a stimulus while ignoring others.
Therefore, Nick is smiling even though he does not feel happy and feels happy after a short time due to facial feedback.
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2. Explain how the distribution and availability of resources might influence population density?
Answer:
The availability of natural resources encourages a higher population density as these can be processed and used in industry and manufacturing. Regions that experience no or few natural disasters are more likely to have a lower population density as they are safer.
A fired worker who fakes mental harassment by his boss in order to explain his unfair treatment
o is insane
o is malingering
o is psychotic
o has a mental illness
Marshall made the following table to compare the functions of physical structures in plants and animals:
Function Animal Structure Plant Structure
Provides support for the organism Skeleton
Exoskeleton Stem
Reproductive organs Testes
Ovaries Stamen
Pistil
X Skin
Fur
Feathers Waxy Covering
Bark
Which of the following should replace X?
Protect the internal organs of the organism
Protect the organism from harsh conditions
Transports water throughout the organism
Involved in reproduction of the organism
Answer:
The answer is Pistil
:}
Explanation:
Can you please give some example's of endangered animal's ? :<
Answer:
axolotls and other few species of fish
giant panda (Ailuropoda melanoleuca) ...
tiger (Panthera tigris) ...
whooping crane (Grus americana) ...
blue whale (Balaenoptera musculus) ...
Asian elephant (Elephas maximus) ...
sea otter (Enhydra lutris) ...
snow leopard (Panthera uncia) ...
gorilla (Gorilla beringei andGorilla gorilla)
H
Animals store most of their excess energy reserves as _____
and this is explained because
Animals store the extra energy as the complex carbohydrate glycogen.
What is glycogen?Glycogen is a polysaccharide of glucose. It serves as a form of energy storage in fungi as well as animals and is the main storage form of glucose in the human body.
The excess energy reserve as starch in case of plants and glycogen in case of animals.
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Which scientist argued that the mind and body were completely separate entities?
Question 14 options:
Walter Cannon
Descartes
Kurt Lewin
Hans Seyle
Answer:
Walter Cannon
Explanation:
as he came up with the theory on how to separate the mind and body
if glucose levels get too high in our body, what diseases may occur because of it?
Answer:
Hyperglycemia or high blood glucose
Explanation:
Hyperglycemia or high blood glucose occurs when there is too much sugar in the blood. This happens when your body has too little insulin (the hormone that transports glucose into the blood), or if your body can't use insulin properly. The condition is most often connected with diabetes.
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If a researcher tried shotgun sequencing with a single chromosome from a single cell, would the process work?.
Answer: No, there would be no overlap because there is only one piece of double-stranded DNA that is fragmented.
Explanation:
in human digestion system trachea and oesophagus both connect to the
a large intestine
b stomach
c pharynx
d rectum
Explanation:
In human digestion system trachea and oesophagus both connect to the :-
b) Stomach
Answer:
b) stomach
Explanation:
In the human digestion system, the trachea and esophagus both connect to the stomach.
The graph below shows the number of occupied
bald eagle nesting in North America between
1960 and 2007.
Which human activity most likely had the greatest
influence on the trends shown in the graph?
A. Breeding eagles in captivity
B. Allowing the hunting of eagle predators in
national forests
C. Releasing eagles into North American forests
from other continents
D.Conservation efforts, including a ban on
certain pesticides
Answer:
This is just a guess because I can't see the graph, but I think the answer is B. Don't use this though, as it's only a guess.
Explanation:
Which are correct examples of physical (P), chemical (C), and biological (B) barriers? P: complement system; C: saliva; B: coughing P: coughing; C: saliva; B: complement system P: coughing; C: sneezing; B: complement system P: complement system; C: saliva; B: sneezing
The correct examples of physical (P), chemical (C), and biological (B) barriers is P: coughing; C: saliva; B: complement system.
What are barriers?Barriers are the immune defence mechanisms used by the body to prevent the invasion of microorganisms from causing harm.
Examples of immune barriers include:
Physical barrier: Example is coughingChemical barrier: Example is salivaBiological barrier: complement system.Learn more about immune system here:
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