The Answers to Darwin's Theory quiz!
1. B. coat color for blending in with dry grass
2. C. Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.
3. B. overpopulation
4. B. competition among individuals for available food sources
5. B. fur color that closely matches the eucalyptus bark color
6. B. Island finches resembled mainland finches, but were not the same species.
7. D. He proposed that natural selection is the primary mechanism of evolution.
8. A. a process that selects variations that help with survival and that spreads the variations to more offspring
9. B. birds that have longer beaks
10. D. point 4
Edge 2021
According to the concept of "survival of the fittest," if a population of birds eats worms that they find deep under ground by using their beaks, birds that have longer beaks would be more likely to survive, which is present in Option B.
What is natural selection?Natural selection is a process in which the only organisms that can adapt to the environment and its changing conditions are chosen by nature, such as in the case of the Darwinian finches. when different types of birds are present in the ecosystem and all can get their favorable food source, but when an adverse climate occurs and food is only available in deep ground, only long-beaked birds can survive because they can get food. This explains the survival of the fittest by the natural selection.
Hence, as per “survival of the fittest," if a population of birds eats worms that they find deep under the ground by using their beaks, birds that have longer beaks would be more likely to survive, which is present in Option B.
Learn more about the process of natural selection here.
https://brainly.com/question/2725702
#SPJ6
Explain how bacteria can be both harmful and helpful.
The species of bacteria that colonize our respiratory and digestive systems help set up checks and balances in the immune system. White blood cells police the body, looking for infections, but they also limit the amount of bacteria that grow there. Likewise, bacteria keep white blood cells from using too much force. Bacteria also help out by doing things cells are ill-equipped to do. For instance, bacteria break down carbohydrates (sugars) and toxins, and they help us absorb the fatty acids which cells need to grow. Bacteria help protect the cells in your intestines from invading pathogens and also promote repair of damaged tissue. Most importantly, by having good bacteria in your body, bad bacteria don’t get a chance to grow and cause disease.
Some species of bacteria in your body can result in diseases, such as cancer, diabetes, cardiovascular disease, and obesity. Usually, these diseases happen only when the normal microbiome is disrupted, but that can occur even from antibiotics. Antibiotics kill bacteria, and some of those will be good bacteria that we need to protect our health. When that happens, the bad bacteria that normally are kept in check have room to grow, creating an environment ripe for disease.
Bad bacteria can exist at low levels in your body without causing harm or can grow too much and wreak havoc. Staphylococcus aureus can cause something as simple as a pimple or as serious as pneumonia or toxic shock syndrome. P. gingivalis can cause gum disease, and was recently linked to pancreatic cancer (read our article find out more). Similarly, when not suppressed by good bacteria, Klebsiella pneumonia can cause colitis, and subsequently lead to colorectal cancer.
In addition to allowing disease-causing bacteria to flourish, the elimination of good bacteria throws the immune system out of whack. The result can be simple allergies or very debilitating autoimmune diseases. Without the right balance of bacteria, your body might suffer from constant inflammation.
Inflammation is the body’s alarm system, which calls white blood cells to heal a wound or to get rid of infection. Chronic inflammation, however, can make the body more susceptible to autoimmune diseases and cancer, such as causing inflammatory bowel disease which if uncontrolled can cause colon cancer.
4. What is the probability that an offspring will have a yellow seed? (1 poin
25%
37.5%
075
4. Transcribe and Translate a Gene. How is mRNA different from DNA? (Hint read the side-bar on this page for help) What is the correct starting position for translation? Write the amino acids used to assemble your protein in the order below. Where does translation take place?
what is the cause and effect of stop codone mutation?
Answer:
Nonsense mutations occur when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal. Consequently, most nonsense mutations result in nonfunctional proteins.
Hope this helped! :)
In the experiment, which of the following variables should remain consistent?
the types of plants used
the temperature of the water and vinegar
the type of soil used
All of these choices are correct.
All of the above is correct
Select from the options below: O A. I have a purebred dog/cat. O. B. I have a rescue purebred dog/cat. O " C. I have a "shelter" adopted dog/cat. D. I don't have a dog/cat.
Answer:
A
Explanation:
lol Purebred bloodhound
Hope you have a great day :D
what would happen if an electric fish was always negatively charged instead?
Answer:
Electric eels are part of a group of animals called electric fish.These cells pump positively charged sodium atoms, called ions, from inside themselves to the outside.
Explanation:
Brainliest? plz
Electric fish is a part of the group of animals which are responsible for producing charge. These organisms pump positively charged sodium ions from inside themselves to the outside environment.
What is electric fish?
An electric fish is an fish that can generate electric fields and transfer current through themselves. Most of the electric fishes are electroreceptive, which means that these fishes can sense the electric fields present in the environment. The only exception here is the stargazer family which is not electroreceptive.
The examples of electric fish includes Electric eel, that belongs to the genus Electrophorus, South American knifefishes responsible for the production of powerful electric shocks to stun prey.
If the electric fishes are supplied with the negative charge always then they will pump positive charge to neutralize the effect of that charge.
Learn more about Electric fish here:
https://brainly.com/question/14788080
#SPJ2
carlos made a diagram to compare two kinds of fish. which label belongs in the area marked Z?
a. scales
b. no jaw
c. swim bladder
d. skeleton made of bones
PLEASE HELP
Answer:
B
Explanation:
i also do edge
Of all of the energy given off by the Sun directed towards Earth, approximately only 50 percent of the energy penetrates directly to
the surface of Earth. What is the best explanation for what happens to the rest of the energy?
A) Energy is lost during while traveling through space.
B) Energy is reflected or absorbed by Earth's atmosphere.
C) Some of the energy is reflected back into space by the Moon.
D) Energy is lost through the process of overcoming the Sun's large gravitational force.
Which structure of the lymphatic system functions as the site of development of T lymphocytes during childhood and the preteen years, but is replaced by fat as an individual grows older?
thymus
bone marrow
spleen
adenoids
Answer: thymus
Explanation: T cells adapt in the immune system just like the thymus
Answer:
Thymus
Explanation:
I don't actually know so I'm sorry if it is wrong
Have a great day!!!!!
It is advantageous for a predator to prey exclusively on a single prey species.
Answer:
Assuming this is a true/false question, the answer would be false.
If a predator only preyed on one species, it would be at a disadvantage if the prey it feeds on gets wiped out in that region.
Therefore, your answer is False.
1. Which part of the cell membrane acts like bridge and only allows certain materials in and out
2.
Because a membrane is picky and only lets in certain materials the membrane in considered_______
Answer:
1.phospholipid bilayer
2. selectively permeable
A scientist is treating rice plants with a chemical that causes mutations. What is the possible benefit of this treatment? A. clones B. transgenic plants C. increased genetic variation D. increased hybridization
Answer:
Explanation:
Its either B or C, look closely at the question and at the answers, you can narrow it down from then.
A scientist is treating rice plants with a chemical that causes mutations. The possible benefit of this treatment is transgenic plants. Hence, the correct option is B.
What is mutation?A mutation is a change in the DNA sequence that makes up a gene. It can result from errors in DNA replication or exposure to mutagenic agents such as chemicals or radiation, or from spontaneous changes.
Transgenic plants are the plants that have been genetically modified to express specific traits or traits that are not found in the original species. This is done by introducing foreign DNA or chemicals that change the plant's genome. This process is called genetic engineering.
Transgenic plants have become an important tool in agriculture and biotechnology, providing new opportunities for food production, environmental protection and economic growth. Hence, the correct option is B.
For more details regarding the mutation, visit:
https://brainly.com/question/21628654
#SPJ6
what were some of the earliest life forms? and what were they like
List 3 organisms that are made of plant cells:
Answer:
Seed Plants
Ferns
Mosses
Thallophytes
Explanation:
In the experiment "What Effect Does Vinegar Have on Plant Growth?" some plants were given only water, some were given only vinegar, and the others were given various mixtures of water and vinegar. Which of the following groups is the control group in the experiment?
50% water and 50% vinager
100% water
100% vinager
or 25% vinager and 75% water
Answer:
50% water and 50% vinegar
Explanation:
A wave carries from one place to another. Mechanical waves carry energy through
Answer:
Mechanical waves bring energy from one place; the media or space conduct electricity through electromagnetic radiation.
Explanation:
Energy flow is parallel to wave motion. To pass across, the wave needs a source. Electromagnetic radiation bring energy to the surroundings; they conduct electricity via media and room by mechanical waves.
Answer:
Energy
Matter
Explanation:
i did the lesson
What do we mean when we say that the resulting ADP molecule is recycled?
PLEASE ASAP NEED HELP PLEASEEE !!!!
Answer:
Hunting in groups, keen eyesight, chemicals to paralyze prey
Explanation:
Answer:
Hunting in groups
Keen Eyesight
and Camouflage
Explanation:
These are all the main adaptations that predators are born with. The rest of them do not help them at all. PLease give brainliest :)
is pathogen a bacteria and a virus? Or just a virus or just a bacteria ?
Answer:
Both a Bacteria and Viruse
Explanation:
Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.
A pathogen is both bacteria and virus but there are other pathogens as well. Pathogen is a very broad term and is just any organism that causes decease.
Anyone know I’m confused
Answer:
the correct option is
A. All plant cells have at least one vacuole but only some animal cells have vacuole
Answer: C
Explanation:
All have them, although they vary in size and function
What occurs during the digestion of proteins?
A) Specific enzymes break down proteins into amino acids
B) Specific hormones break down proteins into simple sugars
c) Specific hormones break down proteins into complex carbohydrates
D) Specific enzymes break down proteins into simple sugars
Answer:
Specific enzymes break down proteins into amino acids
The process happens in the digestion of proteins, specific enzymes break down proteins into amino acids.
What are enzymes?Enzymes are the proteins that are helpful in the increasing the rate of any reaction. Enzymes also present in the body, they help in digestion of different substances in the body. Different enzymes work on different substances.
Thus, the correct option is A) Specific enzymes break down proteins into amino acids.
Learn more about protein
https://brainly.com/question/17095120
#SPJ2
How would a lack of contact inhibition result in the growth and spread of cancerous cells?
Explanation:
Contact inhibition is a process of arresting cell growth when cells come in contact with each other. As a result, normal cells stop proliferating when they form a monolayer in a culture dish. Contact inhibition is a powerful anticancer mechanism that is lost in cancer cells
Contact inhibition is the property of normal healthy cells where the cells cease growth after coming in contact with each other. A lack of this property results into uncontrolled growth of cells.
What is Contact inhibition?
Contact inhibition is the property of normal healthy cells which enables the cells to cease proliferation and growth when they come in contact with each other. This property is lost by the cell when the cells undergo malignant transformation. As a result, this leads to uncontrolled proliferation and solid tumor formation in the body.
In the in-vivo culture of cells, contact inhibition arrests cell growth and as a result, normal cells stop proliferating when they form a monolayer in the culture dish. Contact inhibition is a powerful anticancer mechanism which is lost in cancer cells.
Learn more about Contact inhibition here:
https://brainly.com/question/20453950
#SPJ2
What is antibiotic resistance and why should we be
worried?
Answer: Antibiotic resistance is when bacteria develops a resistance or an immunity against antibiotics. If this evolution/adaptation becomes widespread, our healthcare system could see a mass rise in deaths due to us not being be able to effectively treat the bacteria which is causing harm.
Explanation:
I learned about this
What is the force of a ball with a mass of 5 N if it accelerates at 10 m/s/s?
- Use what you have learned about dominant and recessive alleles to explain why Ravyn
is albino when neither of her parents is abino?
Answer:
Please find the explanation as to why Ravyn is albino when neither of her parents is abino below
Explanation:
According to Gregor Mendel in his law of dominance, a DOMINANT allele is a form of a gene (allele) that masks the phenotypic expression of another in a gene while the RECESSIVE allele is the allele being masked. This means that an allele can be present in a gene but in a masked or recessive condition.
According to this question, Ravyn happened to be an albino when neither of her parents is albino because BOTH of his PARENTS are HETEROZYGOUS for the skin color trait i.e. they both contain the allele for normal skin color, which is dominant, and the allele for albinism, which is recessive. Note that a recessive trait will only express itself when in a pure breed condition, hence, both parents contributed the reccesive allele (albinism) to produce the recessive condition in Ravyn.
In a nutshell, Ravyn is an albino because his parents are heterozygous and both passed on the recessive alleles to him.
what is the difference between climate and wheather
Answer:
Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location.
:P
What is carbon dioxide
Answer:
Carbon dioxide is a colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas.
Answer:
The air that you breathe out. Also it is what plants breathe in.
Explanation:
Hope this helps!!
(Brainliest) Fusion is a nuclear reaction where small nuclei join together and release energy.
Group of answer choices
True
False
Answer:
it's true
Explanation:
i searched it up
1. Carbon is a very important element in biology. What are some of the reasons that organisms need carbon? please help me
Answer:
"All living orgasms contain carbon and all virtual molecules in the body contain carbon, sugar, DNA, proteins, Fats..."
Explanation:
Hope this helps :)
