An ecosystem is a region where a bubble of life is created by plants, animals, and other species interacting with the weather, environment, and other factors,is defined by ecologists,
Ecosystems are made up of both biotic, or living, and abiotic, or nonliving, components. Plants, animals, and other species are biotic factors.An ecosystem's productivity, or how much is produced and how quickly it returns, as well as its biomass or the total weight of living things in the ecosystem can all be used to measure it. Of course, all these parameters matter to neighboring ecosystems as well because if one ecosystem is highly productive, the ones next door will benefit.
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Explain the difference between the three types of selection
Th difference between the three type of selection has been that stabilization selection keeps allele frequency constant, direction selection changes the allele frequency over generation, while disruptive selection maintain high allele frequency.
What is natural selection ?
Natural selection is the process by which populations of organisms adapt and change.
The 3 Types of Natural Selection
Stabilizing SelectionDirectional SelectionDisruptive SelectionStabilizing SelectionStabilizing selection is natural selection that keeps allele frequencies relatively constant from generation to generation. In other words, unless the environment changes, things stay the same.
A classic example of stabilizing selection is human birth weight Very low birth weight and very high birth weight are mutually selected to keep the mean birth weight
Directional SelectionDirectional selection is a natural selection that causes gradual changes in allele frequencies over several generations. This usually occurs when environmental/selection pressures change or when favorable new alleles emerge within the population.
Example: Recent findings show that climate change is affecting fish size in certain habitats.
Disruptive SelectionDestructive selection is natural selection that maintains high frequencies of two different allele sets. In other words, individuals with intermediate phenotypes or alleles are selected.
Destructive selection causes polymorphism: the persistence of two or more distinct phenotypes in species . This can occur in environments that exhibit variability.
For example, birds in the Galapagos Islands use their beaks to forage seeds of various sizes.
Therefore, the difference between the three types of natural selection is that:
Stabilizing selection keeps allele frequencies relatively constant from generation to generation.
Directional selection causes gradual changes in allele frequencies over several generations.
Destructive selection maintains high frequencies of two different allele sets.
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Which of the following is a scientific question?
How many lizards live in Paynes Prairie?
O Who is the director of the National Science Foundation?
O What stores sell my favorite flavor of gum?
How do mosquitoes affect the transmission of disease?
Answer:
How do mosquoitoes affect the transmission of a disease?
Explanation:
What are the two main types of weathering?
Answer:
Chemical weathering and physical weathering.
Explanation:
The routes nerve impulses from our senses.
A. thalamus
B. hippocampus
C. brain stem
D. corpus callosum
Answer:
a
Explanation:
The correct answer is C. Brain Stem.
How does the brain stem function?The thalamus and other areas of the brain receive nerve signals from our senses through the brain stem. It is made up of the medulla, pons, and midbrain and is situated at the base of the brain.
The brain stem is in charge of regulating life-sustaining processes including breathing, heart rate, and blood pressure. It is also in charge of transmitting sensory data from the body to the thalamus, which subsequently transmits the data to the relevant parts of the brain.
Although the brain stem is the main pathway for nerve impulses from our senses, the hippocampus, corpus callosum, and thalamus are all important in the processing of sensory information.
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Big thanks to anyone that can help with this <3
Answer:
1a. To collect and remove waste materials from the body.
2c. Urinary bladder.
3d. Urea
4c. Remove urea and excess water.
Explanation:
The main function of our excretory system is to collect and remove waste materials from our body because these waste materials are toxic and cause damaged our body. Urinary bladder is the organ that stores urine. Urea is present in the urine under normal conditions of the body which is waste material produced our body. The main function of kidney is to remove urea and excess water from our body.
Can someone please help. Thank you!!
What specifically makes up a protein.
Answer:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha central carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain
Explanation:
:)
Explanation:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain.
What type of metamorphosis does a monarch butterfly undergo?
1. complete metamorphosis
2. incomplete metamorphosis
Answer:
1. complete metamorphosis
Answer:
Complete Metamorphosis
Explanation:
This means that there are four distinct stages: an egg, larva (caterpillar), pupa (chrysalis), and adult stage.
The special job an organism plays in it's ecosystem is it's __________.
biome
population
niche
biodiversity
Answer:
Niche
Explanation:
The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives.
Answer:
niche
Explanation:
The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives.
When compared to a cheek cell, a muscle cell would contain more
Answer:
Chromosomes
Explanation:
4. The nearest organ to which the heart supplies oxygenated
blood is
Explanation:
Nearest organ to which heart supplies oxygenated blood is HEART ITSELF. It is supplied through CORONARY ARTERIES.
Why is West Ferris not running out of water?
Answer:Pq ele é bom no que faz e está sempre a paum sso a frente da humanindade
Explanation:
A cell is placed in a hypertonic solution. Which will most likely occur as homeostasis is maintained in the cell?
A.
The cell will gain ATP molecules.
B.
The cell will gain water.
C.
The cell will lose water.
D.
The cell will lose sodium ions.
Answer:
B the cell will lose water
Explanation:
Because of the hypertonic solution water will move on the concentration gradient leaving the cell and entering the solution. Thus the cell looses water.
When a cell is placed in a hypertonic solution, it will most likely lose water (Option C) as homeostasis is maintained in the cell.
What is homeostasis?Homeostasis is the ability of an organism or a system to maintain a relatively stable internal environment, despite changes in external conditions. It is a key aspect of biology that helps living organisms survive in their environment. Homeostasis is maintained through a series of physiological processes that regulate different aspects of an organism's biology, such as temperature, fluid balance, and pH
A hypertonic solution is one that has a higher concentration of solutes (e.g. salts) outside the cell compared to inside the cell. This creates an osmotic pressure gradient, which draws water out of the cell and into the solution in an attempt to balance the concentration of solutes on both sides of the cell membrane. As a result, the cell will shrink and lose water.
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Which answer choice accurately depicts the sequence by which blood moves from the pulmonary vein to the body tissues?
Answer:
See the answer below
Explanation:
Oxygen-rich blood flows from the lung through the pulmonary vein to the left atrium of the heart. From there, the blood is pumped through the mitral valve to the left ventricle. The contraction of the left side of the heart sends the oxygenated blood out of the left ventricle through the aortic arch to the major arteries designated to carry blood to the major parts of the body. From the arteries, blood moves to the capillaries and then to the various tissues of the body before returning back to the heart through the vein.
Thus, the sequence of flow of blood from the pulmonary vein to the body tissues can be summarized as:
Pulmonary vein -> Left atrium -> Arteries -> Capillaries -> tissues
A liquid is matter that
A. has a definite volume and takes the shape of its
container.
B. has a definite shape and won't take the shape of its
container.
C. has no shape, and its volume changes randomly.
D. has a volume that changes with its container.
Answer:
272939
Explanation:
373773737384848
All developed countries, in some way, are moving towards which type of energy?
Non-Renewable Energy
Solar Energy
Non-Pollutant Energy
Renewable Energy
Answer:
Renewable Energy
Explanation:
PLEASE ANSWER FAST WILL MARK BRAINLYEST THIS IS DUR IN A HOUR
You have three options for this assessment. Each option is related to one of the topics you finished in this path. Read through each option and dec
• Option 1: This is It!
• Option 2: Speak with Good Purpose
• Option 3: To Affinity and Beyond
Option 1: This is It!
You have learned that you can turn any moment into a This Is It! moment and that you can use the OTFD strategy to improve your communication
practice what you have learned by reflecting on your This Is It! attitude and creating your own OTFD.
This option has two parts. Read all parts, including the option 1 rubric, before beginning.
Part I: This Is It! Reflection
Think about the tasks you performed last week, from chores at home to things you did for school. Write about two specific situations where it is ea:
playing soccer with your friends, talking to your friend on the phone, or having dinner with your family.
Write about two specific areas in your life where it is not as easy to have a This Is It! attitude. For example, cleaning the kitchen after dinner, sitting
What is a specific strategy you can use to have your This is it! attitude in those times you wrote about? For example, if it is hard for you to have a
kitchen after dinner, you can put on your iPod and dance around the kitchen as you get everything by the sink, clean it all up, and put everything a
Part II: OTFD
Consider the following scenarios:
. Imagine your friend asks for your opinion about an outfit she wants to buy.
• Your friend wants to know what you think about a certain video game that is new in stores.
• You want to ask someone you like to come to your soccer game.
Something else you find in your everyday life.
Which gas is released during the light reactions of photosynthesis?
A. Carbon dioxide gas
B. Oxygen gas
C. Nitrogen gas
D. Methane gas
A species of bacteria is found deep within the Earth’s crust. Which process will the bacteria use to obtain energy?
A. Cellular Respiration
B. Photosynthesis
C. Lactic Acid Fermentation
D. Alcoholic Fermentation
Which of the following is not a reactant needed for photosynthesis?
A. Sunlight
B. Oxygen
C. Carbon Dioxide
D. Water
Answer:
B for your first question.
A for your second question.
B for your third question.
Explanation:
I hope this helps!
Explain how an animal grows?
Answer:
big liitle fat
Explanation:
Answer:
The primary way that animals grow and develop is by building more cells. When an animal eats food, its body breaks the food down and uses it to fuel its energy requirements and build new cells through the process of mitosis. These new, or daughter, cells are often similar in size to the old, or parent, cells.
Explanation:
In DNA, if the % of adenine is 30%, what is the % of thymine?
Answer:
35%
Explanation:
Since we know that 35% of the bases in the section of DNA are adenine, we can conclude that 35% of the bases are thymine.
NEED HELP ITS DUE AFTER MY WINTER BREAK!
Answer:
For question 1 the answer is respiratory, and for question 2 is circulatory
Answer: (1) Circulatory (2) Respiratory
HELPPP PLEASEE literally pleaseeeee
Answer:
high
Explanation:
you're getting too hot you are starting to sweat
The upwelling of deep ocean currents in some areas results in _________________.
Group of answer choices
A. nutrient-rich water
B. rough seas
C. a decrease in marine life
D. flooding on the coasts
Answer:
a
Explanation:
i took this
If the action force is a player kicking a soccer ball, then what is the reaction force? the ball accelerating in the direction of the kick the ball moving at a constant speed in the direction of the kick the ball accelerating in the opposite direction of the kick the ball pushing on the player in the opposite direction of the kick
Answer:
the ball accelerating in the direction of the kick
There is the picture to the question
Answer:
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
In this metabolic process, the enzyme RNA polymerase binds RNA nucleotides (the substrates) together by catalyzing the formation of a bond between the backbone sugar of one nucleotide to the backbone phosphate of another nucleotide. Name the metabolic process that bonds RNA nucleotides together
Answer:
TRANSCRIPTION
Explanation:
Transcription is the first process that occurs in the expression of a gene. It involves the synthesis of a mRNA molecule from a DNA template. The DNA molecule, which is located in the nucleus of an eukaryotic cell, is bound to by an enzyme called RNA polymerase in order to synthesize an mRNA molecule/strand.
RNA polymerase synthesizes a mRNA molecule using complementary base pairing rule i.e. Uracil base (U) is synthesized when Adenine (A) is read, Adenine when Thymine (T) is read, Guanine (G) when cytosine (C) is read, Cytosine when guanine is read. These nucleotide bases are then joined together via chemical bonding.
In a nutshell, RNA polymerase catalyzes the formation of a bond between the backbone sugar of one nucleotide base to the backbone phosphate of another nucleotide base in the metabolic process of TRANSCRIPTION.
How is fish adapted? Write any two adaptational characters of them.
What happened at point B? Why?
Answer:
population has decreased over that period ,MAyBe
Explanation:
I don't know why
What do coal deposits tell you about the continents?
Answer:
Coal deposits are found in sedimentary rock basins, where they appear as successive layers, or seams, sandwiched between strata of sandstone and shale.
what is combination reaction?
COMBINATION REACTION:
Combination reaction is a reaction where two or more elements or compounds combine to form a single compound. Such reactions are represented by equations of the following form: X + Y → XY. The combination of two or more elements to form one compound is called combination reaction
An example could be lithium reacting with sulfur to give lithium sulfide. When magnesium burns in air, the atoms of the metal combine with the gas oxygen to produce magnesium oxide.
Genetics is the study of
A: Cell Division
B: Heredity
C: Body systems
D: Sexual Reproduction
Answer:
B. Heredity
Explanation: