can a theory be created by just one person ?
Answer:
Theories can be created by just one person
YesExplanation:
What normally happens is that one person creates a theory, and as years go by new research comes out further advancing or modifying a theory. The theory then is created by many people. Which overall still means that theories can be created by just one person.
How does meiosis play a role in the evolution of a species
A. It increases the reproduction rate of the species
B.it increases the amount of genetic variation in the species
C. It reduces the amount of competition between members of the species
D. It increases the ability of individuals in the species to obtain resources
Answer:
The correct answer is - option B. it increases the amount of genetic variation in the species.
Explanation:
Meiosis is a type of cell division that takes place in sex cells or reproductive cells. There is crossing over takes place which is a process where the genetic exchange of chromosomes occurs between non-sister chromatids of homologous chromosomes.
The crossing over leads to the new genetic combinations of genetic material which result in the genetic variation in species. This variation plays a role in the natural selection and evolution of species.
-
. Glucose Lactic Acid + 2 ATP
1. What is the name of this formula?
Explanation:
anaerobic respiration as per my opinion .
hope this will be helpful to you.
The picture shows 4 different types of Point Mutations, what type of Point Mutation is letter A? *
Answer:
there is no picture attached
Explanation:
What is a genotype? Please help
Answer:
the genetic constitution of an individual organism.
Explanation:
so like A and B ,A is for mom that would be a genotype
what substances form the uprights of the DNA ladder
Question 1 4 Eagles and grizzly bears live together in the same habitat. Which of the following situations would lead to eagles and grizzly bears competing for resources? O Grizzly bears hibernate during the winter while eagles remain active. O Pesticides in the fish population affect eagles' eggs and decrease their population. O Both grizzly bears and eagles feed on the same species of salmon. O Laws prevent humans from being able to hunt eagles or grizzly bears
Answer:
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ANIMALSPHOTO ARK
Grizzly bear
Grizzly bears once lived across much of western North America until European settlements and aggressive hunting eliminated most of the population.
PHOTOGRAPH BY JOEL SARTORE, NATIONAL GEOGRAPHIC PHOTO ARK
COMMON NAME: Grizzly bears
SCIENTIFIC NAME: Ursus arctos horribilis
TYPE: Mammals
DIET: Omnivore
AVERAGE LIFE SPAN IN THE WILD: 25 years
SIZE: Five to eight feet
WEIGHT: 800 pounds
SIZE RELATIVE TO A 6-FT MAN:
IUCN RED LIST STATUS:? Least concern
LC
NT
VU
EN
CR
EW
EX
LEAST CONCERN
EXTINCT
CURRENT POPULATION TREND: Stable
What is the grizzly bear?
The grizzly bear is a North American subspecies of the brown bear. Grizzlies are typically brown, though their fur can appear to be white-tipped, or grizzled, lending them their name. Grizzly bears are protected by law in the continental United States—not in Alaska—though there have been some controversial attempts to remove those protections in recent years.
When the Australian wildfires occurred, what short-term effect did the
ecosystem experience?
A. Plants and/or animals relocated or died.
B. All of the plants died but the animal population increased.
C. There was no effect on the ecosystem.
D. The trees grew back quick and the animals were not affected
Answer:
A. Plants and/or animals relocated or died.
Explanation:
Plants and animals will eventually come back, so that is a short-term effect on the ecosystem.
Hope this helps! :)
Is electricity a "green " energy resource ? Explain why or why not.
Answer:
The U.S. voluntary market defines green power as electricity produced from solar, wind, geothermal, biogas, eligible biomass, and low-impact small hydroelectric sources. ... Such fuel sources include the sun, wind, moving water, organic plant and waste material (eligible biomass), and the earth's heat (geothermal).
Explanation:
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the energy required to lift an object is supplied by ATP, which is made by breaking down molecules of
a. carbon dioxide
b. oxygen
c. glycolysis
d. glucose
The energy provided by ATP is driven by the breakdown of glucose molecules. Thus, option D is correct.
ATP or Adenosine triphosphate is the energy molecule that is able to provide energy to the body. Varying pathways and cycles in the cell produce ATP.
Which molecules produce ATP?ATP production is carried out in the degradation of the complex molecules by the cell. The cycle is operated primarily in the cell for the production of ATP in glycolysis.
The ATP is produced in the glycolysis cycle with the breakdown of glucose molecules. Thus, option D is correct.
Learn more about ATP, here:
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PLZZZZZ HELP!!! WITH 5 STAR THANK AND MARK BRAINLIEST!!! Explain how form and function are related in human cells. Include examples.
Answer:Each cell carries out basic life processes that allow the body to survive. Many human cells are specialized in form and function, as shown in Figure below. Each type of cell in the figure plays a specific role. For example, nerve cells have long projections that help them carry electrical messages to other cells.
Explanation:
Answer:
I agree with the other person
have a good day :)
Explanation:
Give two examples of phospholipid soluble molecules? How can these molecules move across the cell membrane? What affects the direction of their movement
Answer:
1. Only small uncharged molecules can diffuse freely through phospholipid bilayers (Figure 2.49). Small nonpolar molecules, such as O2 and CO2, are soluble in the lipid bilayer and therefore can readily cross cell membranes. 2. Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm). 3. Objects change their motion because unbalanced forces act on them. There are four main factors that affect the motion of objects. These factors are force, friction, inertia, and momentum.
Explanation:
Hope this helps. ^_^
Answer:
Examples include steroids and Vitamins
Phospholipids ,as the name implies fall under the category of lipids. Phospholipids have a hydrophilic "head" which has a strong attraction to water molecules.The hydrophilic head contains a phosphate group which allows for reactivity with water molecules.
Phospholipids also contains two hydrophobic "tails" which has a strong repulsion to water. The tails are derived from fatty acids and are joined by a glycerol molecule. These compounds are less reactive to water molecules .
These properties make phospholipids to be soluble in both water and oil which favors the movement of molecules such as Steroids and Vitamins in and out of the cells through the process called Diffusion.
The direction of movement depends on the concentration of molecules as they usually move from a region of high concentration to a region of lower concentration to ensure there is equilibrium and proper functioning of cells.
Read more on https://brainly.com/question/21317207
i’ll mark brainliest
Answer:
1) Different
2) Different
3) The same
4) The same
Please don't forget to mark me brainliest!!!
Some bacteriostatic antibiotics work by binding to enzymes needed by bacteria to build proteins essential for their own growth and reproduction. These drugs act as inhibitors to the bacterial enzymes but they target enzymes we don't have. Now, imagine you overhear your friend saying "antibiotics kill bacteria so they must kill healthy human cells too and they must be avoided at all costs!" Kindly explain to your friend (who has very little science background) how it is possible to target bacteria based on enzyme specificity. Be sure to include how targeting these enzymes is effective at stopping the infection.
Answer: This statement ("antibiotics kill bacteria so they must kill healthy human cells too and they must be avoided at all costs!") is wrong and can be proven to be so in the following explanation about the mode of actions of antibiotics.
Explanation:
Antibiotics are drugs which are used for the treatment of diseases caused by bacteria microorganisms. According to their mode of action, they can either be bactericidal or bacteriostatic.
Bacteriostatic antibiotics work by binding to enzymes needed by bacteria to build proteins essential for their own growth and reproduction. Atypical example is the antibiotics, sulfonamide. This drug acts by inhibiting a critical enzyme called dihydropteroate synthase which are specific to the metabolic pathway of the bacteria cells for the synthesis of folic acid. This causes the bacteria to stop growing. Together with the actions of the immune system, the bacteriostatic actions of the antibiotics can effectively stop am infection without affecting the host cells.
Help me pls hajkskwksmsmsmskwmsksmsss
Answer:
The easiest one to correct would most likely be Class V, since in this type of mutation, the only problem or abnormality is the production of insufficient amounts of the needed CFTR.
Explanation:
Mutation Classes
Class I - Gene contains a stop signal that prevents CFTR from being made.
Class II - CFTR is made, but does not reach the cell membrane
Class III - CFTR is made and in the right place, but does not function normally
Class IV - Channel does not move substances efficiently or at all
Class V - CFTR is made in smaller than normal quantities
During
A _______
Moon,
Earth is between the Sun and Moon
and the side of the moon facing Earth is fully lit by the Sun.
Answer:
The word you are looking for is: Full
Explanation:
I majored in Biology
Compare mitosis with meiosis by filling in the chart below:
Mitosis
Meiosis
Characteristic
22. In what type of cells does this type of cell division
occur?
23. How many cells are formed at the end of the
process?
24. Are the resulting daughter cells the same or different
than the mother cell?
25. If the process begins with a diploid mother cell, will
the daughter cells be haploid or diploid?
26. Are tetrads formed?
27. Does crossing over occur?
Answer:
22:- in mitosis stem cells and somatic cells cell division occurs and in meoisis germ cells cell division occurs
23:- at end of mitosis 2 daughter cells formed and meiosis 4 daughter cells formed
24:- in mitosis cells are same and in meiosis cells are different
l know only those questions answers
what is the difference between anaerobic and aerobic respiration??
Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. ... Anaerobic respiration also produces energy and uses glucose, but it produces less energy and does not require oxygen.
What are themes of the 1st chapter of the War of the Worlds by H. G. Wells?
Answer:
Social Darwinism and Evolution
Explanation:
This are the themes of the 1st chapter of the War of the Worlds by H. G. Wells.
Is electricity a "green " energy resource ? Explain why or why not.
Answer:
The U.S. voluntary market defines green power as electricity produced from solar, wind, geothermal, biogas, eligible biomass, and low-impact small hydroelectric sources. ... Such fuel sources include the sun, wind, moving water, organic plant and waste material (eligible biomass), and the earth's heat (geothermal).
Explanation:
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20 POINTS AND BRAINLEST!
5. How is density affected when?
(a) the temperature increases
(b) the depth increases
(c) the latitude increases
(d) the salinity increases
Answer: he is not correct
Explanation:
incorrect bud
Which of the following statements about cellular respiration is correct?
This process occurs mainly in chloroplasts.
Plants and animals use this process to produce ATP.
Oxygen is a by-product of this process.
Plants use this process to produce carbohydrates
Answer:
Plants and animals use this process to produce ATP.
Explanation:
the first one is wrong because cellular respiration occurs in almost every cell
the third one is wrong because byproduct of cellular respiration is water, not oxygen(oxygen is used in the reaction)
fourth is wrong because carbohydrates are produced by photosynthesis
second option is right because cellular respiration provides energy(ATP) for cells to use(in order to perform lots of processes)
What determines the color of a rock?
Answer:
Rock color chart method
Explanation:
hope this helps
The modern model of the Plate Tectonic Theory suggests that the continents and the
major tectonic plates drift slowly on ?
Answer:
pretty sure it’s the lithosphere
Scientists have noticed that the entire DNA molecule has the same width, despite the fact that the four nucleotides are NOT the same width Now that you’ve created a model, explain why this makes sense (hint: it has to do with the number of rings for each nitrogen base)
I don't have access to your model, although I'm sure it's beautiful. Fortunately, this question can be answered without one.
A strand of DNA is a polymer consisting of monomeric nucleotide units. The nucleotides that are found in DNA are distinguished by their nucleobases: adenine (A), thymine (T), guanine (G), and cytosine (C). Each nucleotide in DNA is made up of a single nucleobase, a sugar (deoxyribose), and a phosphate group. These nucleotides form extremely long chains comprising phosphate-sugar linkages (covalent, phosphodiester bonds).
In native, double-stranded DNA, you have of these chains (or strands) arranged side-by-side such that the nucleobases on one chain are faced directly across corresponding nucleobases on the other chain, which enables hydrogen bonding between the bases.
There is a "rule" regarding which bases form hydrogen bonds with one another (Chargaff's rule): adenine with thymine and guanine with cytosine.
What does this have to do with the width of the DNA molecule?
The four nucleotides can be structurally classified into two categories: pyrimidines and purines. For our purposes, we only need to know that pyrimidines are six-membered rings and purines are a fusion of a six- and five-membered ring (basically, purines are pyrimidines attached to a five-membered ring). Thymine and cytosine are pyrimidines, and adenine and guanine are purines.
So, geometrically, adenine and guanine are larger (and, thus, "wider") than thymine and cytosine since adenine and guanine contain an extra ring. But remember our base-pairing rules: In native DNA, adenine (two rings) on one strand pairs up with thymine (one ring) on the other strand, and guanine (two rings) pairs up with cytosine (one ring) on the other strand.
Because there's a 1:1 ratio between A:T and G:C in double-stranded DNA, the DNA molecule consists of complementary base pairs that, in any given composition of, has equivalent widths. Put simply, the A=T pair has the same width as a G≡C pair because both base pairs are between one pyrimidine and one purine.
DNA (Deoxyribonucleic acid) is composed of four nucleotides, namely, adenine, guanine, cytosine, and thymine.
Adenine and guanine are purines while Cytosine and thymine are pyrimidines.Purines are composed of two rings while pyrimidines are composed of only one ring.Purine forms bond with pyrimidine, i.e Adenine binds with thymine and guanine binds with cytosine.Adenine and thymine form two hydrogen bonds while guanine and cytosine form three hydrogen bonds.Thus, the relative pairing of the purine and pyrimidine with each other keeps the width of the DNA constant.
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Why do you think milk is pasteurised?
What would happen if we did not add leap years
Conclude: An organism that breaks down organic matter into simpler materials (like carbon dioxide) is called a decomposer. Decomposers absorb nutrients from living things or the organic matter they leave behind. They do not need to kill to get their food.
Do your results suggest bears are decomposers? Explain your reasoning.
Answer:
No, because bears kill to get their food. They eat fish and they kill the fish to get them. If they left the fish carcass, decomposers would eat it. The bear makes the food for the decomposers, but it is not a decomposer itself... Does that make sense?
PLEASE HELP i need this fast i will give BRAINLIEST
Answer:
1 is
Explanation:
no. 1 is water cycle
no.2 is food chain
no.3 is carbon-oxygen cycle
no.4 is mineral cycle
WILL GIVE BRAINLY!! WILL REPORT RANDOM ANSWERS.
1. Which of the following was NOT a part of the summary on Darwin's Theory of Evolution?
Organisms produce more offspring than what can survive
Struggle for Existence - Organisms will compete for resources
Species that live today descended from a common ancestor, with modifications to their traits.
Adaptations are acquired through the use of those traits.
2. Which of the following is NOT one of the main points of Natural Selection?
Variation
Use and Disuse
Adaptation
Overproduction
3. Which type of evidence was Darwin' UNABLE to use, because of the time period, in which he lived? Check all answers that apply!
fossil record
biochemical evidence/ biochemistry
comparative embryology
anatomical structures - homologous/ analogous/ vestigial
Biogeography/ Geographic Distribution
Answer:
1adaptation are acquired through use of those traits (that was lamarck)
2 . use and disuse (that was lamarck)
3.biochemical evidence (the rest he would have been used, not completely but there would have been elements available there)
Explanation: