Which of the following scenarios will decrease the genetic variation of a population?
Answer:
population of birds suddenly decrease their frequency of sexual reproduction.
Explanation:
This is the answer to quiz accordingly.
Scientists once classified fungi as types of plants. Today, fungi are classified in their own kingdom. Which of these
traits distinguishes fungi from plants?
A Fungi have cell walls made of chitin and are heterotrophic.
B Fungi grow in the ground and are photosynthetic.
С Fungi reproduce by asexual reproduction.
D Fungi are prokaryotes.
Answer:
D is the answer hope it helps
what is the outcome of cell signaling
Answer:
Other important large-scale outcomes of cell signaling include cell migration, changes in cell identity, and induction of apoptosis (programmed cell death).
Explanation:
i need some help on this.............
Answer:
a) Beaver-dam buildings → (iii) Pond floods
b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor
c) Lack of rainfall → (ii) Zebras migrate farther to find water holes
d) Invasive water plants arrive → (iv) Sunlight is blocked for native seagrasses
e) Grasshopper outbreaks → (v) Crops are wiped out along the prairie
f) Coyote disease decreases the population → (vi) Mice population explodes
Explanation:
a) Beaver-dam buildings → (iii) Pond floods
This is an example of how some species might produce damages in ecosystems. Beavers are known for their dams, where they hide from predators, find shelter, reproduce, and feed. With time, and as the beaver population grows, these dams get bigger each time. These animals keep cutting down trees and covering some wider areas that were inhabited previously by other species. The landscape changes, these areas get flooded permanently, most vegetation dye, the soil properties get altered, and just a few species can keep living there. The ecosystem changes.
b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor
This is an example of biological succession. Stable forests characterize as having big old trees that compete for light developing big canopies at heights. Poor light reaches the ground and allows some smaller species to grow. When a fire occurs, some of these trees might fall or disappear. These fire events open windows in the forest through which sunlight directly reaches the ground. Many new species can germinate and grow. There occurs a renovation of vegetable species in the forest and the consequent renovation of other living forms.
c) Lack of rainfall → (ii) Zebras migrate farther to find water holes
It is not unusual that some species need to migrate looking for food or water. In certain areas, seasonal differences are very sharp, and while some periods characterize as producing plenty of food and water, some others characterize as lacking them, dry seasons especially. Animals develop different strategies to face these moments. Zebras need to migrate to find a new source of water to ensure proper hydration.
d) Invasive water plants arrive → (iv) Sunlight is blocked for native seagrasses
A very known global environmental problem is the damage caused by invasive species. In a few words, exotic species arrive in a new area out of their native distribution range, establish, grow, adapt, and reproduce. These exotic species turn into invasive species when they overgrow, sharply increasing their reproductive rate. At this point, interaction with native species becomes harder, competing for resources such as space, light, food, shelter, water, among many others. Invasive species become such a good competitor that end by displacing native species. In the exposed example, invasive water plants arrive, and their population overgrows. They compete for light with native seagrasses and end by blocking it for them.
e) Grasshopper outbreaks → (v) Crops are wiped out along the prairie
This is an example of the prey-predator relationship. In this case, grasshoppers are the predators, and crops are acting as the prey. Whenever one of the population increases in size, the other one follows this increase, causing the decrease of the first one. When the first population decreases, the second one also decreases. In this example, grasshopper outbreaks, meaning an increase in predation rate over crops. Many more individuals are feeding on the crops, causing more damages to the plants´ population. Crops do not have enough time to recover, so they are wiped out.
f) Coyote disease decreases the population → (vi) Mice population explodes
This is also an example of the prey-predator relationship. In this case, coyotes are the predators, and mice are acting as the prey. As coyotes are affected by the disease, which causes a decrease in their population size, mice seem to be favored, as they are not predated. They have enough time to recover as a population and increase in size. Coyotes´population decreases in size, so there are many fewer individuals feeding on mice, and hence, the mice population increases very fast. It explodes.
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Answer:
C
Explanation:
Answer: the answer is c
Explanation:
This category of endangerment has so few individual survivors that the species could soon become extinct:
A. Invasive species
B. Threatened species
C. Endangered species
D. Endemic species
E. Red list species
Answer:
Endangered Species
Explanation:
C. Endangered species
The more diverse an ecosystem is-
A- the more threatened it’s populations are
B- the more similar the species will be
C- the more sustainable it is
D- the fewer varieties of species are present
Answer:b
Explanation:
what is process of forming an exact copy of the dna molecule called?
Natural selection will only lead to evolution if it allows for an organism to ________.
a. possess advantageous traits.
b. compete for resources.
c. produce offspring.
d. all of the above.
Answer:
b
Explanation:
Natural selection will only lead to evolution if it allows for an organism to process traits, compete for resources and produce offspring. The correct option is d.
What is natural selection?Natural selection is indeed an evolutionary mechanism. Lifeforms which are better adapted to their surroundings are much more likely to flourish and pass on the genetic traits that helped them thrive. Species change and diverge as a result of this process.
Natural selection, Darwin proposed, is a framework for evolution in which genetic variants that help support life, reproduce and survive as well as become more prevalent in a population over time.
Natural selection will occur if three conditions are met, according to Darwin's theory. These conditions, which are outlined as,
Represent a struggle for survival.Exhibit variation.Undergo inheritance.These are the conditions that are said to be both necessary and sufficient for natural selection.
Natural selection will only result in evolution if an organism is able to process traits, compete for resources, and produce offspring.
Thus, the correct option is d.
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Which of the following is true?
A
The flow of gases varies directly with airway resistance.
As lung compliance increases, the energy required to breathe increases
Surfactant increases the cohesiveness of water molecules therefore decreasing
the surface tension of the alveolar fluid.
O Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant
produced. THis is common in premature infants.
In healthy individuals, friction is a major factor affecting pulmonary ventilation
Answer: Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant produced. This is common in premature infants.
Explanation:
Respiratory distress syndrome (RDS) is a well-known breathing disorder that is common in premature infants. It happens when there is a lack of surfactant produced in the baby's lungs which is quite bad because surfactant enables babies to breathe when they are born by keeping the lungs expanded.
It is common in premature infants because the lungs only begin to produce surfactant in the third trimester so babies that are born prematurely did not get to produce sufficient quantities. If not treated immediately, brain damage could follow.
Which of the following statements are true about the esophagus? Select all that apply.
The esophagus is a bony tube.
The esophagus is a muscular tube.
The esophagus moves food from the mouth to the small intestine.
The esophagus moves food from the mouth to the stomach.
Which of the following statements are true about the esophagus?
The statements that are true about the esophagus are:
The esophagus is a muscular tube.The esophagus is the muscular tube of the digestive tract that develops from the pharynx to the stomach.
The esophagus moves food from the mouth to the stomach.This part of the digestive system is traversed by food, which enters through the mouth, passes through the pharynx, crosses the esophagus and reaches the stomach.
In this process, the esophagus has an active participation, since its walls contract to promote the advance of the food.
Therefore, we can conclude that the esophagus is a muscular tube that moves food from the mouth to the stomach.
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What is the relationship between UV radiation and melanin
PLS HELP WILL GIVE BRAINLIEST need answers by today!
Which of these is NOT large and gaseous?
A) Jupiter
B) Mercury
C) Saturn
D) Uranus
Answer: B) Mercury
brainliest?
Explanation:
what two spheres are interacting when ocean water evaporates into the air
1. geosphere
2. hydrosphere
3. atmosphere
4. biosphere
8. Which is true about viruses!
a. They are prokaryotic cells that infect living organisms
b. They are nonliving particles that infect living organisms
C. They are eukaryotic cells that infect living organisms
d. They are fungi that infect living organisms
Answer:
The Answer is gonna be A. They are prokaryotic cells that infect living organisms
This is the right Answer :3
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list the excretory organs of the human body and state the substance they excrete
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?
Answer:
7.5mL
Explanation:
Comsidering the definition of dilution, 7.5 mL of the stock solution of 2 M are required to prepare 100 mL of 0.150 M solution.
Dilution is a procedure by which the concentration of a solution is lowered. It is achieved by adding more solvent to the same amount of solute.
Then the amount of solute does not vary, but the volume of the solvent does: when more solvent is added, the concentration of the solute decreases, as the volume of the solution increases.
A dilution is mathematically expressed as:
Ci×Vi = Cf×Vf
where
Ci: initial concentration Vi: initial volume Cf: final concentration Vf: final volume
In this case, you know:
Ci= 2 M Vi= ? Cf= 0.150 M Vf= 100 mLReplacing in the definition of dilution:
2 M×Vi= 0.150 M×100 mL
Solving:
[tex]Vi=\frac{0.150 M x 100 mL}{2 M}[/tex]
Vi= 7.5 mL
In summary, 7.5 mL of the stock solution of 2 M are required to prepare 100 mL of 0.150 M solution.
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brainly.com/question/20113402?referrer=searchResults brainly.com/question/22762236?referrer=searchResultsDescribe the differences and similarities between lecithin and cephalin. Match the words in the left column to the appropriate blanks in the sentences on the right. ResetHelp Lecithins and cephalins are both sphingolipids; they consist of glycerol with fatty acids forming bonds with the first and second groups. The third group of the forms a with phosphoric acid, which forms another bond with an amino alcohol. In lecithins, the amino alcohol is ; in cephalins, the amino alcohol is usually .
Answer:
Here, we have a composition passage and we are required to fill in the with missing words. The missing words are highlighted in bold format and underlined.
Lecithins and cephalins are both glycerophospholipids; they consist of glycerol with fatty acids forming ester bonds with the first and second hydroxyl groups. The third hydroxyl group of the glycerol forms a phosphate bond with phosphoric acid, which forms another phosphate bond with an amino alcohol. In lecithins, the amino alcohol is choline; in cephalins, the amino alcohol is usually ethanolamine.
Explanation:
Lecithin is a chemical complex composed primarily of fatty acids, glycerol, phosphoric acid, and choline. It can be present in egg yolks, soybeans, sunflower seeds, and plant seed cells and is completely normal. Soybean and sunflower lecithins contain much more important fatty acids than rapeseed lecithin, making them nutritionally more useful.
Phosphatidylethanolamine, also known as cephalin, is a phosphoglyceride that, like phosphatidylcholines and lecithins, is a component of biological membranes. A glycerol residue esterified by two fatty acids and a phosphoethanolamine residue gives rise to phosphatidylethanolamines. They're made by combining CDP-ethanolamine with diglycerides and releasing a CMP molecule. Phosphatidylcholines are formed when S-adenosylmethionine methylates the amine in ethanolamines. They're mostly found in the inner layer of plasma membranes' lipid bilayers.
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In 1996, the comet Hale Bopp came close to Jupiter and its orbit around the sun changed from 4200 years to 2380 years. For scientists to understand the orbital changes in the comet Hale Bopp, first they must understand -
A) the composition of Jupiter
B) the magnetic attraction of objects
C) gravitational attraction of objects
D) the similarities of planets and comets
Answer:
C
Explanation:
Orbit is just the smaller object that's orbiting the bigger object is trying to move in a straight line but the gravitational force from the bigger object is trying to pull the smaller object to itself. I hope this answers your question!
The animal that eats another is known as
Answer:
A predator
Step by step explanation:
Answer:
Carnivore or predator
Explanation:
Carnivores are animals that eat other animals. The word carnivore is derived from Latin and means “meat eater.”
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1. What types of geological events or changes occur at divergent plate boundaries?
2. What types of geological events or changes occur at convergent plate boundaries?
3. What types of geological events or changes occur at transform plate boundaries?
Answer:
1. Seafloor spreading, Volcanoes, earthquakes, and ocean formation.
2. Island chains, mountains, earthquakes, and volcanoes.
3. Earthquakes, faults, and volcanoes.
Explanation:
Which of the following is a result of glycolysis?
a.Usage of oxygen as a strong oxidizer
b.Production of CO2
c.Conversion of FAD+ into FADH2
d.Splitting of a glucose molecule to form two G3P molecules
The main result of glycolysis is the splitting of a glucose molecule to form two G3P molecules. The Option D.
What is the main result of glycolysis?Glycolysis, the initial step in cellular respiration involves the breakdown of glucose. One of the key outcomes of glycolysis is the splitting of a glucose molecule into two molecules of glyceraldehyde-3-phosphate (G3P).
This process occurs in the cytoplasm and does not require oxygen. Glycolysis serves as the primary source of energy production in anaerobic conditions and plays a crucial role in both aerobic and anaerobic cellular respiration.
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Why do you need to breathe in oxygen?
a.Oxygen is needed to split glucose.
b.Oxygen provides energy that is to be put into ATP.
c.Oxygen pulls electrons through the process of cell respiration.
d.Oxygen reduces the NAD+ and FADH to produce NADH and FADH2
Answer:
a
Explanation:
Breathing in of oxygen is respiration. And respiration is the taken in of oxygen to break down glucose and energy in form of ATP as by product
Anoles are a family of IIzards found throughout the Americas. Green anoles, Anolis carolinensis, are native to i specific area of Florida. In this
area, the primary territory of green anoles was once along the ground and in low-level branches. However, the Introduction of brown anoles,
Anolis sagrei, from Cuba forced green anoles to shift o their territory to the tops of trees. The branches at the treetops are smoother and thinner
than those close to the ground. Over time, the toe pads of the green anoles have become larger and stickler.
What is the best explanation for the change In green anoles' toe pads?
Some individuals In the green anole population had mutations that helped them survive and reproduce In the new conditions,
so thelr genes were passed on to the next generation.
O B. Gene flow between the green and brown anoles provided the green anoles with traits that helped them survive and
reproduce, and those tralts were passed on to the next generation.
The feet of the green anoles became larger and stickler as they used them, which helped the green anoles to better survive,
reproduce, and pass the tralt on to the next generation.
O D. The change in conditions caused mutations In green anoles that gave them beneficial tralts for survival and reproduction, and
those mutations were passed on to the next generation.
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Answer: D
Explanation:
Answer:
Some individuals in the green anole population had mutations that helped them survive and reproduce in the new conditions, so their genes were passed on to the next generation.
Explanation:
Which of the following can be explained as a mathematical formula
A. An observation
B. A Scientific theory
C. A Scientific Law
D. A hypothesis
Answer:
B
Explanation:
How is being “cute” for a dog an evolutionary advantage?
Answer:
The more adorable you were, the more likely you were to pass down those cute genetics.
Which type of fuel produces greenhouse gases?
A. Hydroelectric
B. Wind
C. Biomass
D. Nuclear
The type of fuel produces greenhouse gases is the Biomass fuels.
Who are fossil fuels?Fossil fuels include oil and its derivatives, coal and natural gas, all formed by the decomposition of living organisms.
The main cause of the greenhouse effect is industrialization. Due to this process, the burning of fossil fuels has intensified in recent centuries. The main products of the combustion reaction of these reagents are the gases mentioned above as the main ones for the greenhouse effect.
in this case, biomass fuels are plants, animals and their derivatives are biomass. Use as fuel can be made from its raw form, such as wood, agricultural products and residues, forest residues, livestock residues, animal excrement and garbage. In other words, are fossil fuels and podruces greenhouse gases.
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Please select the word from the list that best fits the definition
Grouping items together to keep observations organized
inferring
predicting
classifying
observing
Answer:
classifying
Explanation:
for example like classifying the files from SVU classifying them keeps them more organized and labeled kind of like identifying them classifying them keeps them all together in one group
Which statement describes a non-native species?
A. It is a poor predator.
B. It increases stability of a community.
C. It has been introduced to a new area.
D. It has no permanent home.
Answer:
c
Explanation:
a non-native species is a species that isn't familiar/native to the place. if it is introduced or moved to a new area, then it is non-native.
1.Non-living things, such as a car, often show characteristics similar to those of
living organisms.
a) State which characteristic of a living organism matches each of the descriptions
linked to a car.
(i)
burning fuel in the engine to release energy...
[1]
(ii)
headlights that switch on automatically in the dark.
(iii) filling the car's tank with fuel..
. [1]
(iv)
release of waste gases..
-- [1]
b) Identify one characteristic of living things that is not carried out by a
car......
... [1]
Answer:
burning fuel in the engine to release energy...
[1]
Explanation:
i think
