Answer:
C
Explanation:
C The core
Answer:
The answee is Core.
Explanation:
Core is mainly made up of nickel amd iron which produces magnetic field in the Earth.
Which of the following enzymes unwind and open the DNA double helix at the start of DNA replication?
Group of answer choices
Helicase
Telomerase
DNA Polymerase
DNA Ligase
Answer:
Helicase
Explanation:
DNA helicase removes the hydrogen bonds that connect the bases of each DNA strand, which allows for the replication of strands
Answer: Helicase
Explanation: I just took a quiz and got it right :)
Summarize environmental change!
WILL MARK BRAINLIEST!,!
Do you think Biotechnology can be used in anyway in a case where someone has been bit by a venomous snake? If so how?
Answer:
Snake biting is a major public health problem for low-income countries. Till now only antiserum derived from animals are use for the treatment against snakebite venom.
But there are many innovation in biotechnology to manufacture antivenoms against venomous snake. Some of the innovations are as following:
Use of DNA immunisation techniques: In this technique, horses are immunised with toxin-encoding DNA and then antivenom is prespraed from their DNA.Recombinant antivenoms: in this technique antibodies in the animal-derived antivenom are replaced with recombinant human version and then entivenom will be prepared by cell cultivation.These innovation in biotechnology for the preapartion of antivenoms are easier to produce and more cost-effective.
Which event led to a sudden growth in the human population size? 1 point World War II the Irish Potato Famine The Black Death The Industrial Revolution
Answer:
it led into somebody not growing in the human population
Explanation:
What house does a shetland sheepdog belong too.
a. sporting
b. working
c. toy breed
d. herding
e. non-sporting
f. terriers
g. hounds
what is translation, in biology
Answer:
Translation is the process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis. The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding amino acid sequence that it encodes.
Help.. (correct answers only) Studying DNA to find evolutionary similarities among organisms is a
type of _____ evidence.
In which changes of state do atoms lose energy? Check all that apply
Answer:
Explanation: Atoms lose energy when they change from solid to liquid or gas and quid to gas. Explanation: Energy is always involved in changes of state.
Biodiversity can be leered by_____?
Answer:
C
Explanation:
Answer:
C. All of these
Explanation:
Hope this helps : )
What nutrients cause nutrient pollution when in excess
Answer:
Nutrient pollution is caused by excess nitrogen and phosphorus in the air and water. Nitrogen and phosphorus are nutrients that are natural parts of aquatic ecosystems. Hopefully this helps!
Jackson lives near the equator. Nighttime for Jackson is _____ 1. 24 hours long during the winter 2. 24 hours long during the summer 3. 12 hours long all year 4. 12 hours long for half of the year
Answer:
3
Explanation:
This because those at the equator have equal days and equal night.
Beyond their role in energy transfer, what other benefit do microorganisms that act as producers provide for ecosystems?
How are microorganisms involved in the movement of nitrogen from the atmosphere to the bodies of other organisms? Why can’t other organisms just get nitrogen from the air?
What is the benefit of using marine microorganisms such as Dumaliella tertiolecta to produce biofuels instead of using plants?
Answer:
The microorganisms present metabolic wastes that serve as the primary source of food for other living things.
Bacteria that live free in the soil or in symbiosis with plants are essential to fix nitrogen, both nitrates and ammonia. These bacteria take nitrogen directly from the air, originating compounds that can be incorporated into the composition of the soil or living beings.
This property is restricted only to prokaryotes and is widely distributed among different groups of bacteria and some archaeobacteria. It is a process that consumes a lot of energy that occurs with the mediation of the enzyme nitrogenase, which the rest of the living organisms that cannot do or comply with this process is because they lack said enzyme.
Dunaliella is a genus of microscopic algae of the Chlorophyceae class and of the order Volvocales. All are unicellular, although with very varied morphologies.
Morphologically, its main characteristic is that they lack a rigid polysaccharide cell wall.
The ecology of this genus of green algae is characterized by its high tolerance to salinity, with eukaryotic organisms having greater tolerance to salt. They are euryhaline, adapted to salt concentrations from 50 mM NaCl to almost 5.5 M NaCl.
Explanation:
By nitrogen fixation is meant the combination of molecular nitrogen or dinitrogen with oxygen or hydrogen to give oxides or ammonia that can be incorporated into the biosphere. Molecular nitrogen, which is the majority component of the atmosphere, is inert and not directly usable by most living things. Nitrogen fixation can occur abiotic (without the intervention of living beings) or by the action of microorganisms (biological nitrogen fixation). Fixation in general involves the incorporation into the biosphere of a significant amount of nitrogen, which globally can reach about 250 million tons per year, of which 150 correspond to biological fixation.
how does predation cause stability in an ecosystem
Answer:
Predation makes sure that no species becomes overpopulated.
Explanation:
For example, between a fox and a rabbit. If the fox was not the predator, the rabbit population would be out of control. Rabbits eat grass and stuff so too many rabbits will eat all the grass. There will be a chain effect. Foxes are needed to control the rabbit population and restore stability in an ecosystem
A farmer has applied a pesticide to control a pest population that is affecting her crops. The pest population has reacted as shown below.
A chart begins with 4 green bugs and 1 brown bug. The brown bug survives and produces brown offspring.
Which best describes the process that the pest population has experienced due to this environmental change?
genetic diversity
natural selection
natural resistance
gene flow
The correct answer is option B. natural selection.
What is Natural Selection?Natural selection is a natural process in which well-adapted organisms tend to survive and reproduce more than less-adapted organisms. For example, tree frogs can be eaten by snakes and birds. This change means that some individuals have more environmentally-adapted traits than others, and their offspring are scarce. There is no doubt that natural selection has shaped the evolution of humankind in our farther past.
Natural selection is an inevitable result of three principles. Most traits are inherited, producing more offspring than can survive, and offspring with more favorable traits survive and have more offspring than individuals with less favorable traits.
Learn more about Natural Selection here: https://brainly.com/question/23929271
#SPJ2
Answber:
the answer is B
Explanation:
breathing mechanism of fish
Answer:
Breathing Mechanism of Fish. Fish have gills which help them breathe oxygen directly from water without any need to surface. The fish takes water through its mouth, pushing it over the gills and back out through the gill slits. The oxygen enters the blood vessels after being filtered by the gills.
Explanation:
Fish have Gills
Answer:
Fish breathe with the aid of gills.
Explanation:
They take the water rich in oxygen through their mouth and pump it over their gills.
Starts at a promoter and ends at a termination signal
A. Transcription
B. Translation
C. Replication
Answer: The answer is A, Transcription
Which term refers to a soulution with more of the same kind of molecules outside the cell than inside the cell
hope this helps
answer: hypertonic
What happens in meiosis I that does not occur in meiosis II?
-cytokinesis takes place
-nuclei divide
-DNA is copied
-haploid cells form
Answer:
DNA is Copied
Explanation:
Which conditions are essential for the formation of hydric soils?
A. Hi concentration of CO2
B. Hi concentration of sediments
C. Low oxygen levels
D. Warm climates
Answer:
c
Explanation:
Why is it more ethical to test for the waste products of respiration rather than the reactants
Answer:
The knowledge of simple biological reactions tells us that the product of reactions results from the complete or partial use of the reactants. In some reversible reactions, products can be converted to reactants in equal volume. Hence, in reactions that cannot be reversed, as evident in respiration, its waste products can be used to indicate that indeed respiration did take place. When glucose is consumed it is broken down through a series of reactions to give carbon dioxide and water as waste products.
Explanation:
The sequence of amino acids was controlled by
the information in the
RNA molecules.
Answer:
RNA determines the sequence of amino acids in proteins and polypeptides by a two-step process: transcription of DNA produces mRNA in the nucleus, then translation of the mRNA to tRNA takes place in the ribosome in the cytoplasm. ... The sequence of amino acids was controlled by the information in the molecules
Answer:
the answer is RNA
Explanation:
When in U.S, history did pollution start to become an issue? Explain why pollution was not an issue prior to this time period.
Answer in at least 3 complete sentences.
Answer:
pollution began to be a problem in 1800's.
Explanation:
more people meant more rubbish. industry also added to this
You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 25%. Calculate the frequency of the "A" allele. *
1 point
0.5
0.4
0.25
0.6
Answer:
.5
Explanation:
Remember that p = dominant allele, q = recessive allele. Use the Hardy-Weinberg equations:
p^2 + 2pq + q^2 = 1 (AA + Aa + aa = 1)
So aa = q^2. Take the square root, and we'll have just q by itself.
√a^2 = √.25 = .5
So the frequency of the a allele (recessive) = .5.
p + q = 1
p + .5 = 1
p = .5
The frequency of the A allele is .5.
Which level of organization is seen in both arachnoidiscus ehrenbergi and the human stomach
Answer: cell tissue organ and organ system.
Explanation:
it's A:cell your welcome
This picture shows examples of......
a) law of Mendelian genetics
b) phenotypes
c) Punnett squares
d) chromosomes
what 3 things can make food an extra?
Answer:
Gemstone Soap. Many people make and sell their own soap. For it to take off and be a consistent …
DIY Gold Dotted Champagne Flutes. Do you live around vineyards? Are you someone who hosts …
DIY Gold Decorated Clay Jewelry Dish. If you wear a great deal of jewelry, you’ll appreciate this …
Makeup Brush Roll. I wear makeup, but I’m far from a makeup professional. However, my husband …
Explanation:
What are the three main properties of the atmosphere and how do they interact?
Answer:
The three properties of the atmosphere are temperature, air pressure, and humidity. Air pressure decreases with height because the mass of air above you decreases. The temperature varies, but it continues to increase near the end in the exosphere. Humidity is not directly affected by altitude
Hope it helps :)
Explanation:
What Is Air?
You probably don't think too much about air, but it's all around you. It takes up space and is pushing on you right now. There isn't air in space, and if you were to suddenly find yourself in the middle of space without a spacesuit, you'd be aware of how important air is to your survival. Obviously, you need the oxygen to breathe, but if there isn't any air to push on you, bad things start to happen. For starters, bubbles would form in your bodily fluids, and you would double in size. Yikes. Let's get a spacesuit on you ASAP!
So… what is air? Air is a mixture of gases, water vapor, and other substances, and it has specific properties, or characteristics.
Air is made up of gases
Air has mass
Air exerts pressure and has weight
Air can be compressed
Air is impacted by temperature
Wow, that's a lot of new terminology! Let's check out each point on that list.
Mass and Mixture of Gases
Mass is defined as how much stuff an object contains - and by stuff, I mean matter, like atoms and molecules. And even though you can't see it, air has a lot of atoms and molecules. Air is a gas (as opposed to a liquid or a solid) and contains about 78% nitrogen, 21% oxygen, and 1% argon. There are other trace gases in air, like helium, carbon dioxide, and neon, just to name a few.
Air also contains water vapor; the amount varies depending upon the location (think tropical, humid Hawaii versus the dry desert of Las Vegas). Finally, air contains other things, like dust, pollen, and bacteria.
What proof is there that air has mass? Well, if you blow up a balloon with air, the balloon expands. It's expanding due to the gases, water vapor and other materials that give air mass.
Pressure and Weight
Let's move on to pressure, or when something exerts a force on something else. All of those atoms and molecules we just mentioned are moving all around you. The pressure you're experiencing right now is due to all of those atoms and molecules bumping into you, as well as the weight of all of the air molecules and atoms above you.
And how do we know those atoms and molecules have weight? If you were to weigh an empty balloon and then fill it with air and reweigh it, you'd notice it gained weight. This is because, as long as there's gravity, everything with mass has weight (including air).
And here's a fun fact: at sea level all of the air above you exerts 14.7 pounds per square inch on your body (as well as everything around you). If you're below sea level, the number is greater (because you have more air pushing
Which situation involves mainly biotic factors? *
1 point
A drought causes crops to die, and as a result cattle go hungry.
A fungus wipes out a bat population, which allows the mosquito population to
increase and spread disease to people.
A drop in the pH of ocean water prevents coral from growing properly, which harms
the coral reef ecosystem.
Dust from a volcanic eruption blocks sunlight to Earth's surface, and as a result the
weather gets colder.
Answer:
A
Explanation:
because it increase alot of living organisms it A
Question 1:
On the basis of these data, which group of robins most likely shares a most recent common ancestor
with the Norfolk Island robins?
Hello. You forgot to enter the necessary data for this question to be answered. The data are shown in the figure attached below:
Answer:
Red-capped Robin is the group of Robins that share a more recent common ancestor with the Norfolk Island robins.
Explanation:
Red-capped Robin is the group of Robins that share a more recent common ancestor with the Norfolk Island robins, this can be seen by the degree of genetic similarity between these two species, since the Red-capped Robin has 98.2% of genetic similarity .
When two species have the same common ancestor, these species have great genetic similarity and the more recent this ancestry is, the greater the genetic similarity between the species.
Which best describes a recessive allele?
A) always inherited from a parent when a dominant allele is inherited from the other parent
B) never inherited from a parent when a dominant allele is inherited from the other parent
C) only determines phenotype when a dominant allele for the same trait is present
D) does not determine phenotype when a dominant allele for the same trait is present
Answer:
The correct answer is d.
Explanation:
above is the answer.
Answer:
its D
Explanation:
i did the unit test <^>