Answer:
1. D (In population genetics, gene flow is the transfer of genetic material from one population to another.)
2. C (Genetic drift may cause gene variants to disappear completely and thereby reduce genetic variation. It can also cause initially rare alleles to become much more frequent and even fixed. When there are few copies of an allele, the effect of genetic drift is larger, and when there are many copies the effect is smaller.).
3. A and also E (Individuals with inherited characteristics that allow them to best compete for limited resources will survive and have more offspring than those individuals with variations that are less able to compete. Because characteristics are inherited, these traits will be better represented in the next generation.)
4. D (Gene flow can increase fitness but if it happens in another environment, it decreases the adaptability. If alleles are advantageous, the offsprings' inheritance increases.
5. B (Mutations are the main source of alleles)
Consider the following bones: femur, humerus, sternum, scapula, and rib. Which of these bones are flat?
Answer:
The ribs
Explanation:
The long ones are big and the flat bones like the ribs are mostly curved
History of Present Problem:
Frank was driving home after a long day at work. It was late and he was having problems driving in the dark with so
much traffic. He was forced to take a detour and felt tired, so he took another sip of soda. "What would I do without
sugar and caffeine?" he mumbled to himself. Frank realized that he should probably stop the car as he noticed his hands
begin to shake, but he continued anyway. Rounding a corner, he realized that he was having trouble focusing on the
road. He tried to blink away the blurriness and shook his head, but things did not change. In an instant, the car slipped
off the road and hit a tree. "What was that?" exclaimed Frank to the night air. He quickly got out of the car and checked
himself out. Other than the shock of the accident, Frank seemed to be okay. He pulled out his cell phone and called his
wife, Stacey, to come pick him up. He then called to report the accident to the police and his insurance agent. His wife
arrived about an hour later and looked very concerned when she saw Frank sitting in the police car. "Why aren't you
going to the hospital?" screamed Stacey. "Were you drinking again?" "I'm fine, and no I wasn't drinking. Check with
Sergeant Eversman if you do not believe me. I lost focus; it has been a long day and my vision is a little off. This is too
much stress. Please, I just want to go home." The emergency staff checked him out and recommended he go to the
hospital for evaluation but Frank declined. They drove home, but Stacey continued to badger Frank about going to the
hospital.
Answer:
Frank might have been an alcoholic.
Explanation:
Because his wife,Stacey,asked him if he had been drinking and he also didnt want to go to the hospital for evaluation.
In complementary DNA strands, which bases pair together?
Answer:
Adenine pairs with Thymine, and Cytosine pairs with Guanine
Definition of evolution
Answer:
Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.
Answer:
the change in the features of the species over generations that makes the organism adaptable to the changes that occur in it's physical environment.
Does ATPsynthase store energy or release it?
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
ATP synthase is a protein that catalyses the conversion of adenosine diphosphate (ADP) and inorganic phosphate to the energy storage molecule adenosine triphosphate (ATP) (Pi). It's classed as a ligase since it modifies ADP by forming a P-O bond (phosphodiester bond).
Cells store energy in the form of ATP. These storage molecules are made in the mitochondria, which are small organelles present in eukaryotic cells and are commonly referred to as the cell's "powerhouse."
Which of the following is NOT a hypothesis?
Answer:
D. im pretty sure
Explanation:
which organelle do you think is the most important ? make a scientific argument by explaining what makes the organelle you chose more important than all the other organelles
Answer:
The nucleus
Explanation:
This organelle gives all the info. Without it, the cell will die. It's like a human is alive without a brain.
Which of the following is an example of how electrical energy can be generated?
Answer:
C I guess..
Explanation:
becuse water currents are used to generate electricity...
Wind turning a tightly wound coil inside a magnet is an example of how electrical energy can be generated.
What is an example of electrical energy?As the charges that cause the energy are moving, electrical energy is a form of kinetic energy. Lightning, batteries, and even electric eels are examples of electrical energy in action.
What can generate electrical energy?Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy. Other major electricity generation technologies include gas turbines, hydro turbines, wind turbines, and solar photovoltaics.
Learn more about electrical energy here: brainly.com/question/582060
#SPJ2
Plants absorb carbon during which process?
A. Transpiration
B. Absorptive Synthesis
C. Respiration
D. Photosynthesis
Answer:
photosynthesis
Explanation:
this is because, plants use the carbon dioxide to prepare their own food through photosynthesis
Vitamins are created during:
A. Photosynthesis
B. Peroxidation
C. Combustion
D. All the above
Pumpkins grow by what cell division process?
Explanation:
Growing pumpkin for last 15years extends tomato cell division process
Answer:
mitosis
Explanation:
mitosis, is the type of cell division in which parent cells get divided into two identical daughter cells.
3. Common reasons for landslides include all EXCEPT: *
(1 Point)
rain
O earthquakes
wildfires
space weather
Answer:
wildfires
hope it will help
Answer:
Space weather
Explanation:
Rain causes landslides.
Earthquakes cause landslides.
Wildfires cause landslides.
Space Weather has no geological effect possible to cause them.
'can i pls have brainliest? i need it for my goal Thanks! <3'
What is the expected ratio of coat colors in the offspring of two palomino horses
Answer:
25% DD dominant, 25% dd, 50% Dd
12. What is true of a chemical change?
A.
C.
They do not create new substances
It cannot be seen on the molecular
level
B.
It cannot be smelled
D.
The do create new substances
Answer:
D
Explanation:
many chemical changes can be smelled, or heard, etc. And can be seen on a molecular level. Chemical changes create new substances:
Na + Cl = NaCl
Temperatures have dipped and tourists hoping to enjoy Florida's
balmy climes have been coats to keep warm.
deliberating
withholding
hovering
donning
Answer:
deliberating
Explanation:
Tell the story of the predator/prey loop.
If the owl population goes up, then ...
Answer:
Below : )
Explanation:
Well, in most cases if the predator population rises most likely the prey population decreases this is because there is a big population of the predator which allows more of them to eat the prey so the prey decreases. Now when the prey decreases this again affects the predators because now the predators are limited to food so that causes many of them to decrease.
In this scenario, if the owl is the predator, as the population rises, its prey will decrease.
If the owl is the prey, the predators would most likely increase.
Hope this helps!
Describe which factors of an ecosystem are not part of a community.
Answer:
The abiotic factors include water, air, rocks, and sunlight are not part of a community.
Atoms with full valence electron shells are chemically stable. Most noble gases have eight valence electrons. So, one model for chemical bonding is the octet rule. This states that atoms will _________ or __________ electrons in order to reach the more stable arrangement of eight electrons in their valence shells. A) lose, gain B) conduct, share C) transfer, share D) conduct, transfer
Answer:
A - Gain or Lose
Explanation:
Atoms with full valency electron shell are usually very stable. Most noble gases with full valency shell are usually very stable . The valency electron are fully occupied(8) for all noble gases this is what makes them hard to react with other element.
During chemical bonding elements strife to attain the octet rule. The octet rule is to have a full valency electron through bonding . When this atom bond they either transfer electron or share electrons.
The case of transferring electrons forms an ionic bonding. One atom gain electrons while the other lose electrons during ionic bonding. One atom form cation while the other forms anions.
For covalent bonding atoms are shared to attain the octet rule. This kind of bonding exist between a non metal and another non metals
Answer:
Explanation:A: gain or lose
3. What is the relationship between the lungs of a human and the chloroplasts of a greenhouse plant
in the oxygen cycle? (4 points)
Answer:
they both take in air. chloroplasts take in CO2, and filter it into air. the Lungs breathe that air, and make CO2, which starts a cycle. Hope this helped!
The himalayan mountains were formed baecause of a
a.convergent boundary
B.transform fault
c.hot spot
D.divergent boundary
Explanation:
because of convergent fault (B).
hope this helps you.
Type of molecule ,been having a hard time figuring it out
Answer: Cyclic adenosine monophosphate
Explanation:
Explain how a rise in temperature may increase the rate of an enzyme controlled reaction
Answer:An increase in temperature increases kinetic energy of particles, so collision frequency increases and more enzyme-substrate complexes are formed, therefore rate of reaction increases.
Explanation: i no it
What aspect of a muscle cell allows
movement in the body?
A. its shape is short and blunt
B. fibers within the cell move back and forth allowing the
cell to stretch and shrink
C. there are no organelles which allows it to move easier
B is the answer
muscle cells are usually long and have many fibers that can contract and relax.
I'm 100% sure about my answer because I just learned about it :)
The aspect of a muscle cell allows movement in the body is fibers within the cell move back and forth allowing the cell to stretch and shrink. Thus option B is correct.
What is muscle cell?Muscle cell is defined as a unique animal cell that can shrink in size by utilizing a number of motor proteins that have been strategically placed inside the cell.
The cells that make up muscle tissue have the unique capacity to shorten or contract to cause movement of the bodily components.
There are three types of muscle cells.
Cardiac muscleSmooth muscleSkeletal muscleProtein filaments found in muscle cells slide across one another to create muscular contraction.
The configuration of these filaments gives skeletal and cardiac muscle their banded look.
They have a large number of mature mitochondria that supply the energy for muscular contraction.
Thus, the aspect of a muscle cell allows movement in the body is fibers within the cell move back and forth allowing the cell to stretch and shrink. Thus option B is correct.
To learn more about muscle cell, refer to the link below:
https://brainly.com/question/28465505
#SPJ2
Why do you think leewenhoek was excited about what he saw
Answer:
what kind of quastion is this
Explanation:
What are the four different variations of bacteria?
Bacteria are classified into five groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters. Bacteria are found in every habitat on Earth: soil, rock, oceans and even arctic snow.
What are the causes of antibiotic resistance?
Answer:
Over-prescription of antibiotics.
Patients not finishing the entire antibiotic course.
Overuse of antibiotics in livestock and fish farming.
Poor infection control in health care settings.
Poor hygiene and sanitation.
Explanation:
Respond to the following based on your reading.
1. Name the three common states of matter on earth.
2. Which states of matter have a set shape? Explain why this is, based on the
а
animations you observed for the different states of matter.
3. Which states of matter have a set volume? Explain why this is, based on the
animations you observed for the different states of matter.
4. The boiling point is the temperature at which a liquid substance will turn to
vapor, and also the temperature at which vapor will condense to a liquid. The
a
boiling point of ethanol is about 80°C, and the boiling point of water is about
100°C.
a. What can you conclude about the intermolecular forces in water and
ethanol?
b. Do you predict water freezes at a higher temperature or at a lower
temperature than ethanol?
5. Recall how different Van der Waals attractions and how ionic charges changed
the movement of atoms in the animation. Do you think that Van der Waals
attractions or ionic charges are stronger? Why?
Answer:
Most people are familiar with three states of matter – solids, liquids and gases – but there are two more that are less commonly known but just as important – plasmas and Bose-Einstein condensates. They are very compressible (particles are widely spaced). There are three states of matter: solid; liquid and gas. They have different properties, which can be explained by looking at the arrangement of their particles.
atoms
An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton's Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.
What are the 8 states of matter?
Bose–Einstein condensate.
Fermionic condensate.
Degenerate matter.
Quantum Hall.
Rydberg matter.
Rydberg polaron.
Strange matter.
Superfluid
Answer:
1. Liquid, Solid, Gas
2. Solid has a set shape. Solid can move but gas and liquid is more flexible than solid.
3. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid are flexible.
4. A. The stronger the intermolecular forces in a liquid the higher the boiling point. Therefore, water has a stronger intermolecular force than ethanol.
B. Water molecules are more attracted to each other than ethanol (alcohol) molecules, because water has more hydrogen atoms bonded to oxygen. ... So, that's why alcohol has a much lower freezing point
5. Ionic charges are stronger.
Covalent bonds are known to have the strongest and most stable bonds since they go deep and into the inter-molecular state. A diamond is an example of a compound with this characteristic bond.
Ionic bonds are the next strongest molecular bond following covalent bonds. This is due to the protons and electrons causing an electro-static force which results to the strong bonds. An example would be Sodium Chloride (NaCl), which when separated is Na⁺ and Cl⁻.
Van der Waals forces, also known as Dispersion forces, are the weakest type of molecular bonds. They are only formed through residual molecular attractions when molecules pass by each other. It doesn't even last long due to the uneven electron dispersion. It can be made stronger by adding more electrons in the molecule. This kind of molecular bonds appear in non-polar molecules such as carbon dioxide.
Explanation:
These are the answers based on the reading material provided by James Madison High School
which of these is an effect of an algal bloom
Answer:
An increase growth in microorganisms results in oxygen depletion
Explanation:
The growth of algal bloom is caused due to excessive runoff rich in the nutrients like nitrogen and phosphorous. This run off comes from the agricultural field.
These nutrients aids in the growth of the algae(microorganisms) in large number. This growth forms a layer on the water body and use the oxygen present in the water and makes the water oxygen deficient.
Giving brainlest to correct answer!!!
Answer:
d
Explanation:
A nucleus is a membrane-bound structure. A nucleoid is not surrounded by a membrane.
Q5. Arrange the sources of fresh water according to decreasing percentage distribution. Q6. Which among the sources of freshwater can be easily tapped for human use? Q7. Make a short reflection on the availability of freshwater to human use. Will there be enough water in the future?
Surface water (rivers and lakes) are the most available source of fresh water. The other sources of fresh water are largely unavailable.
Water on earth could be fresh water or salt water. The difference between the two is that freshwater is not salty. There is a limited quantity of available freshwater on earth.
Fresh water is found in glaciers, surface lakes and rivers and groundwater.The order of decreasing availability of fresh water on earth is ice> Groundwater > lakes and rivers (surface water).
Unfortunately, the source of freshwater that can easily be obtained for human use is surface water (lakes and rivers). There is only about [tex]1\frac{2}{3}[/tex]% available freshwater in rivers and lakes. About 87% of the world's fresh water supply is locked away in glaciers.
Given the limited availability of fresh water sources, the possibility of an water challenges in the world can not be over emphasized. Definitely, there may not be enough water in the future hence water conservation efforts must be taken seriously.
Learn more: https://brainly.com/question/1527403
