Which of the following is not a natural cause of extinction?
a.competition due to overpopulation
b.introduction of non-native species
c.catastrophic events
d.disease
Answers
Answer:
Introduction of Non-native species would be the answer. ( B )
Explanation:
Now let's break it down.
A. Competition due to overpopulation
Competition due to overpopulation, as competition of resources rises, species will fight among each other, and slowly, population will go down. But I don't see the reason of why it would cause an extinction... perhaps a decrease of population. See, once populations starts decreasing, resources will increase. And ONCE resources increase, populations starts increasing, and there goes competition. Resources decreases, populations decreases, and the whole process repeats. So I'm not quite sure whether it will cause extinction of a species.
B. Introduction of Non- native species.
So what does it mean by Non-native species?
It means that species that have no effect and doesn't exist in the ecosystem. So that will definitely not affect the population whatsoever.
C. Catastrophic Events
Well, common sense. Many people died of tsunamis, tornado and other natural disasters every year. Too many disasters can cause the population to cease.
D. Disease
This we can relate, especially the Coronavirus. Many humans died of the deadly virus. Same goes to animals. If a disease gets too deadly, population will decrease and drive the species to extinction.
So, the Answer would be B.
HOPE THIS ANSWER HELPED :)Among the given options, the one that is a natural cause of extinction would be:
b). Introduction of non-native species.
'Non-native species' are described as the species that are introduced to an ecosystem different from its native habitat.
These species are severe threat to the existing ecosystem of the new habitat including plants, animals, aquatic life, etc. where they've been shifted.
Thus, it is not a natural cause as these species are not naturally introduced but the humans introduce them.
They turn so dominating to get their food and other things that it lead not only harmful but also lead to the extinction of the native species.
Hence, option b is the correct answer.
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Related Questions
Environmental influences begin at birth and continue throughout life.
Please select the best answer from the choices provided
True or False.
Answers
Answer:
On ed2020 the answer is false.
Explanation:
what makes the red blood cell special, why is it special, how is it different than other cells, what is its primary function. (Minimum 5 sentences)
Answers
I hope that helped :(
up to about three thousand million years ago there was no oxygen in Earth's atmosphere today about one-fifth of the atmosphere is oxygen gas. suggest what caused this change???
pls help
Answers
Answer:
Oxygen makes up about one-fifth the volume of Earth's atmosphere today, and is a central element of life as we know it.
But that wasn't always the case. Oxygen, although always present in compounds in Earth's interior, atmosphere, and oceans, did not begin to accumulate in the atmosphere as oxygen gas (O2) until well into the planet's history. What the atmosphere was like prior to oxygen's rise is a puzzle that Earth scientists have only begun to piece together.
Earth coalesced a little more than 4.5 billion years ago from bits of cosmic debris. Liquid oceans existed on the planet almost from the beginning, although in all likelihood they were repeatedly vaporized by the massive meteorites that regularly clobbered the planet during its first 700 million years of existence. Things had settled down by 3.8 billion years ago, when the first rocks that formed under water appear in the geologic record. (They exist in what is now southwest Greenland.)
If Earth had water, it must have had an atmosphere, and if it had an atmosphere, it must have had a climate. What was Earth's early atmosphere made of? Nitrogen (N2), certainly. Nitrogen makes up the bulk of today's atmosphere and likely has been around since the beginning. Water vapor (H2O), probably from volcanic emissions. Carbon dioxide (CO2), also emitted by volcanic eruptions, which were plentiful at that time. And methane (CH4), generated inside the Earth and possibly also by methane-producing microbes that thrived on and in the seafloor, as they do today.
Carbon dioxide, water vapor, and methane played an important role in Earth's subsequent development. Four billion years ago, the Sun was 30 percent dimmer, and therefore colder, than it is today. Under such conditions, Earth's water should have been frozen, yet clearly it wasn't. The water vapor, carbon dioxide, and methane acted as greenhouse gases, trapping heat and insulating the early Earth during a critical period in its development.
Of oxygen, meanwhile, the early atmosphere held barely a trace. What did exist likely formed when solar radiation split airborne molecules of water (H2O) into hydrogen (H2) and oxygen (O2). Hydrogen, a lightweight gas, would have risen above the atmosphere and slowly been lost to space. The heavier oxygen gas, left behind, would have quickly reacted with atmospheric gases such as methane or with minerals on Earth's surface and been drawn out of the atmosphere and back into the crust and mantle. Oxygen could only begin to accumulate in the atmosphere if it was being produced faster than it was being removed'—in other words, if something else was also producing it.
That something was life. Although the fossil evidence is sketchy, methane-producing microbes may have inhabited Earth as long ago as 3.8 billion years. By 2.7 billion years ago, a new kind of life had established itself: photosynthetic microbes called cyanobacteria, which were capable of using the Sun's energy to convert carbon dioxide and water into food with oxygen gas as a waste product. They lived in shallow seas, protected from full exposure to the Sun's harmful radiation. (To learn more about these organisms and the fossil evidence for them, watch the accompanying video "Early Fossil Life.")
True or False, there are genes in our bodies that stop cells dividing too
fast?
Answers
Answer:
true
Explanation:
true true true true true
Which of the following is an example of how enzymes are catalyst?
a)Enzymes can alter the free energy change (ΔG) for a chemical reaction.
b)Enzymes increase the free energy of the reactants to make the reaction go faster.
c)Enzymes provide the activation energy for the reactions they facilitate.
d)Enzymes lower the activation energy so that reactants absorb enough energy to reach transition state.
Answers
Seafood Watch recommends which seafood _______.
a. to buy or avoid
b. to catch and sell
c. to harvest sustainably
d. is safe to eat
Answers
Answer:
a
Explanation:
to buy or avoid
Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.
What is seafood?Seafood is food obtained from the sea. Unsustainable fishing methods, such as dragging and dynamite fishing, entrap or kill various species that are not necessarily targeted by the fishing industry. By identifying varieties of seafood that have been caught sustainably, Seafood Watch promotes them over those that have not.
The theory is that since only fisherman who employ sustainable practices are financially rewarded, they will outperform rivals. Based on rigorous scientific standards for environmental sustainability, our Seafood Watch program assigns grades to seafood collected or raised all around the world.
Our suggestions can be used by customers and business owners to locate seafood that has been farmed sustainably. Numerous species are included in the exhaustive list, along with information about where in the water they were caught—from the wild or from farms—and how they were harvested.
Therefore, Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.
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what body systems ate most pikely involved in sensing and responding to a sharp object
Answers
Answer:
The nervous system, the integumentary system, the muscular system (and the skeletal system) are all involved in responding to a sharp object.
Explanation:
What is the function of a protein?
Answers
Explanation:
Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place, and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.
Hope this helps!! :)
What is the main negative effect of slash and burn deforestation in rain forests?
The erosion of thin, fragile tropical topsoils
Heavy smoke in the air causes respiration problems for humans
A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂
Bare land warms absorbs heat and warms the surrounding air faster than forested areas.
Answers
Answer:
A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂
Answer:
A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂
Explanation:
i had this on a quiz and it was right =]
Describe each of the following:
Sickle Cell Anemia
Diabetes
Acne
HELP!!
Answers
Answer:
1. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent moons.
Treatments: Blood transfusion
Symptoms: Pain
2. Diabetes is the condition in which the body does not properly process food for use as energy. Most of the food we eat is turned into glucose, or sugar, for our bodies to use for energy. The pancreas, an organ that lies near the stomach, makes a hormone called insulin to help glucose get into the cells of our bodies.
3. Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. It causes whiteheads, blackheads or pimples. Acne is most common among teenagers, though it affects people of all ages.
Please help me
Where in a cell does most ATP production take place? Question 6 options:
A. nucleus
B. mitochondria
C. lysosomes
D. cell wall
Answers
Answer:
The answer is B mitochondria
Explanation:
Most of the ATP in cells is produced by the enzyme ATP synthase, which converts ADP and phosphate to ATP. ATP synthase is located in the membrane of cellular structures called mitochondria.
Describe the design solution engineers and scientists developed to prevent contamination of Cleve
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Answer:
Water_Work_Conservation.MAJELA.Answers.docx - 1 Describe...
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the answer is in this link
Judy took some dead grass and soaked it in water for a few days. Then she looked at it under a microscope. She saw some tiny things moving around under the microscope. How could Judy tell whether what she was looking at were living things? Check all of the following that could be used to decide whether the things Judy saw were living. (
Answers
Answer:
Living Cells created from the dead grass
Explanation:
Because the water has nutrients.
The presence or absence of freckles is determined by one gene. The allele for freckles (F) is dominant and the allele for the absence of freckles (f) is recessive. A couple has several children. All of the children have freckles because their parents' genotypes can only produce children with freckles. Which of these are most likely the genotypes of the two parents?
Group of answer choices
A: ff and ff
B: Ff and ff
C: FF and ff
D: Ff and Ff
Answers
Another name for a fertilized egg is a
Answers
Answer: The fertilized ovum, now called a zygote, is ready for the first mitotic cell division.
how would you describe the motion of a transverse wave
Answers
Answer:
Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. ... Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.
Explanation:
hope it helps you.
A silk fiber is made from?
Answers
Answer:
The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).
Explanation:
Hope this helps :D ( I just copied and pasted)
Answer:
Fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons
Explanation:
What do the three nucleotide bases on an mRNA molecule (called a codon) provide a code for?
six amino acids
two amino acids
three amino acids
one amino acid
Answers
Answer:
c. three amino acids
Explanation:
i know this from my exam in fifth grade. your welcome ;)
An mRNA is made up of the 4 nitrogenous bases A,U,C and G where the thymine is replaced by U for uracil. An mRNA molecule is made up by a codon of three amino acids.
What is amino acid ?An amino acid is made up by the acidic as well as basic group where the acidic group is carboxylic acid and the basic group is amine group.
A codon is made up by the three amino acids where the three of the amino acids together called as codon makes up a nucleotide together and the molecule it codes for makes a long chain of proteins together making up the structure of the desired machinery as per signals and the mechanisms that are assigned to it.
A codon makes up the together the amino acid and then the chain and together it makes up the protein where the long polypeptide makes up the structure that is tertiary in nature.
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Which of the following words describe most of the trillions of cells in your body?
A. Specialized
B. Undifferentiated
C. Pluripotent
D. Embryonic
Answers
Answer:
A. specialized
Explanation:
A cell is the basic unit of life. However, there are many different types of specialized cells. This means they are modified by size, shape, or function according to their purpose. Specialized cells make up tissues, tissues make up organs, and organs make up the systems that work together to make up our bodies.
Which substance is a product of glycolysis?
A. Lactate
B. Oxygen
C. Pyruvate
D. Water
Answers
It will produce two pyruvate two nadh two atp
So C
Which of the following cells have a nucleus?
- Animal cell
- Bacteria cell
- Plant cell
Which of the following cells have a cell wall?
-animal cell
- bacteria cell
- plant cell
Answers
Answer:
Animal and Plant cells both have a nucleus, and only the Plant cell has a cell wall.
Explanation:
Hope this is correct. If it is, please give me Brainliest.
Answer:
An animal cell and plant cell both have a nucleus. Plant cells have a cell wall because the cell wall helps protect and support the plant cells.
The law of conservation of mass states that:
O Mass can be created but energy can only be transferred
O Energy can be created but mass can only be transferred
Matter and energy cannot be created nor destroyed, only transferred
Matter and energy can be created and destroyed, not transferred
Answers
Answer:yesThe law of conservation of mass states that:
O Mass can be created but energy can only be transferred
O Energy can be created but mass can only be transferred
Matter and energy cannot be created nor destroyed, only transferred
Matter and energy can be created and destroyed, not transferred
Explanation:
How is a spider's webs made?
Answers
Explanation:
spider webs produces silk thread to build their webs. The silk is produced in silk glands with the help of the spiders Spinnerets....The threads a spider used to construct its web begin as a liquid with a dry quickly in the air.
what are energy-giving nutrients
Answers
Answer:
The nutrients that provide energy are commonly referred to as macronutrients (carbohydrates, lipids, and proteins). Carbohydrates and proteins provide a similar amount of energy per gram of food.
Explanation:
Which are examples of harmful mutations? Check all that apply.
Answers
Answer:
Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:
Answer:
Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:
Explanation:
How long did it take to purify Interferon? *
7 years
17 years
27 years
37 years
Answers
Fossils provide a record of animals that are ___ or no longer living
A. Petrified
B. Extinct
C. Modern
Answers
Answer:
B. Extinct
Explanation:
Exctinct means no longer exists.
In this case, fossils provide the proof that exctinct animals species used to exist but no longer do. For example, dinosaurs are the prime example of this.
Change TCA-GAT from DNA into mRNA
Answers
Answer:
AGU-CUA
Explanation:
An mRNA sequence is made using a DNA sequence as a template. The sequence is dictated by complementary base pairing.
DNA uses the bases A, T, C and G. A is complementary to T and G is complementary to C.
RNA uses the bases A, U, C and G. A is complementary to U and G is complementary to C.
When transcribing DNA to RNA:
C is paired with GG is paired with CA is paired with UT is paired with ATherefore, TCA-GAT is transcribed to AGU-CUA
Photosynthesis uses all of the following____ except
A carbon dioxide
B chemical energy
C light energy
D water
Answers
Answer:
The answer is B
Explanation:
It uses carbon, light, and water but not chemical because it doesn't produce.
Which muscle is the most capable to provide the most strength for a frog to jump?
a)lower forelimb
b)upper forelimb
c)calf muscle
d)thigh muscle
Answers
Answer:
D. thigh muscle
Explanation:
