Answer:
Oxygen
Explanation:
Oxygen is the by product of photolysis during photosynthesis whereby water molecules are split to form protons (H+ ions), electrons and oxygen (by product).
Oxygen is not needed during any of the reactions in photosynthesis and Calvin cycle and will not affect the rate of photosynthesis or possibility of photosynthesis occurring. However, it will affect the process of aerobic respiration instead.
Carbon dioxide is needed in carbon fixation during the Calvin cycle. Without it, 6 carbon sugars cannot be formed.
Water is needed for photolysis to produce protons (maintain the electrochemical gradient) and electrons (to replenish lost electrons)
Chlorophyll are pigments that harvest light energy to excite electrons produced from photolysis of water to be passed down the electron transport chain.
Light is needed as a source of energy to energise the electrons
Viruses cannot live on their own, and instead need to infect a/n _______ to replicate.
The two primary life cycles of viruses are the lytic cycle, also known as the virulent cycle, and the _______ cycle, also known as the temperate cycle.
A/n _______ is a virus that infects bacteria.
Answer: Host Cell, Lysogenic, Bacteriophage
Explanation: Viruses cannot live on their own, and instead need to infect a/n Host Cell to replicate.
The two primary life cycles of viruses are the lytic cycle, also known as the virulent cycle, and the Lysogenic cycle, also known as the temperate cycle.
A/n Bacteriophage is a virus that infects bacteria.
Answer:
host cell
lysogenic
bacteriophage
cell wall
resistance
emerging
Viruses evolve and reproduce. They have genes encoded on nucleic acids.
They are not able to reproduce without a host. They don't have their own cytoplasm.
Prokaryotes have beneficial roles in the carbon and nitrogen cycles. They help to make the carbon in the air usable by plants and break down nitrogen into the reactants that can be used by other organisms.
Viruses recognize specific receptors that are embedded in their host's cell membranes. These receptors are normally used by the cells as gateways, but viruses can insert their DNA or RNA into them. That they must recognize specific receptors limits them to only infecting the species that have that particular receptor. They can infect cells because they're designed in such a way to only infect species and cells. Once inside the cell, the virus can begin reproducing.
Metagenomics has advanced our understanding of how prokaryotic organisms exist and function in natural ecosystems. We are coming to understand that different species assemblages are associated with different health outcomes.
Explanation:
PF. please give brainliest :)
Which term describes a pure substance that is made up of only one type of atom?
Answer:
pure substance describe that atom is made up of only one type of atom.
Answer: A pure substance is something that occurs in nature.
Explanation: An element is made up of one type of atom only and cannot be spout further. A compound has the combined properties of the elements from which it is made. Atoms show the macro properties of an element
What do manufacturers use water for
Answer:
water is used for fabricating, processing, washing, diluting, cooling, or transporting a product. Water is also used by smelting facilities, petroleum refineries, and industries producing chemical products, food, and paper products.
A pure substance where atoms of two or more elements are chemically bonded to one another?
A mutation causing an addition or a deletion of one base pair resulted in the production of a nonfunctional mutant protein. The sequences of the normal and mutant proteins are given below. Normal: Met - Tyr - His - Glu - Val Mutant: Met - Phe - Thr - Lys - Cys - Lys - Trp - Arg - .....
Was this mutation cause by an insertion or a deletion?
Answer:
Explanation:
The mutation was caused as a result of deletion of one letter of the codon A from tyrosine leading a shift in the reading frame.
Normal is
Normal - Met - Tyr -His- Glu- Val
Aug- Uac- Cac - Gaa -Gug
When a is removed from Tyrosine codon we have a shift in the reading frame to form a mutant with a new codon and protein.
Mutant - Met- Phe - Thr - Lys -Cys
Aug- Ucc- Acg - Aag -Ugu
Mutation is a sudden change in the genie of an organism that can be heritage by offspring from their parent.
Suppose that out of 10 trees planted in a yard, only five survive. What kind of hypothesis could you make about this observation or event? Remember that a hypothesis need to have a certain format
Answer and Explanation:
Hypothesis: Half of the trees could not survive because the yard is exposed to extreme environmental conditions to which the plants were not able to adapt.
A hypothesis is a scientific conjecture, not verified, that requires corroboration. It is a possibility, but not a fact.
A hypothesis must express what is expected to occur in a perfectly comprehensive manner. There must be a logical relation between variables. It must be objective.
There are different kinds of hypotheses: descriptive, correlative, differentiative, or causative.
The hypothesis example proposed for the trees´ survival situation, belongs to a causative hypothesis, where cause and effect relations between variables are proposed. In this case, as the environmental conditions in the yard were too extreme, half of the trees could not survive.
Answer:
Based upon the experience with the trees, I’d make the hypothesis that my yard was not sustainable enough to support all of the trees, so only half lived.
Explanation:
Yes, this is a very late answer, but I hope it can help somebody :)
From: 2021 :)
What happens after the mRNA transcript is formed in the nucleus to mark its destination
help me please.......
Answer:
Pathogens
Explanation:
The antibodies destroy the antigen (pathogen) which is then engulfed and digested by macrophages. White blood cells can also produce chemicals called antitoxins which destroy the toxins (poisons) some bacteria produce when they have invaded the body.
A forest has many trees and bushes that produce nuts. This a major food source for many species, including a
The provided question is incomplete as there can be more than one answer to this question, however a generalized answer is given:
Answer:
Birds like wood pecker and jay, animals like monkey, chipmunks, and rabbits.
Explanation:
A forest is a large part of the land with various kinds of trees, bushes. In the forest various kind of animals, birds, and insects are found. All these diverse animals rely on trees, bushes, or each other for there food.
Many trees and bushes produce nuts in a forest that plays a major role in food source for many species of animals and birds such as jay and woodpecker bird. In animals chipmunks, monkeys and rabbits are major species.
their is one establish method to solve all scientific problems? true or false
Answer:
False
Explanation:
There one established a method to solve all scientific problems a False.
Define scientific problems?The Scientific Method is the method in which scientists do an experiment.
It's a logical series of steps that ensures scientists don't miss anything and keep things organized.
Thus, this is a false statement.
To learn more about Scientific Method click here:
https://brainly.com/question/82021
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The wooly mammoth and the modern-day elephant share a common ancestor. Mammoths were large mammals that lived in cold areas. They were protected by thick layers of fur. What adaptations enabled elephants to evolve and survive in today’s climate?
Answer:
Answer here:
Explanation:
African Elephants evolved large ears to fan themselves in the heat of the African Savanna plains. They also evolved thick skin as protection from predators, and quiet pads on the bottom of their feet to help them silently walk.
I hope this helped, if you need more please let me know!
Hebb's postulate from 1949 states "When an axon of cell A is near enough to excite cell B and repeatedly or persistently takes part in firing it, some growth process or metabolic change takes place in one or both cells such that A's efficiency, as one of the cells firing B, is increased." Give an example of how synaptic plasticity results in: a. Growth processes b. Metabolic changes
Answer and Explanation:
Synaptic plasticity can be defined by the dynamic state capable of producing and enhancing selectively the direction and the activity of neurons in neural circuits.
Synaptic plasticity may play important roles during growth because it is a feature that has the potential to act as a feedback in order to excite and inhibit functions associated with signaling pathways. For example, it has been shown that neurotrophins modulate the synaptic plasticity, thereby controlling the growth and development of the central nervous system.
Synaptic plasticity may also be associated with metabolic changes. For example, the synaptic plasticity enables to modify those cellular preferences associated with the use of energy derived from fats and carbohydrates in the cell.
Please help me !!!!!!
idk the answer
Explanation: srry
Answer:
I think the answer is reduce
Oxygen-rich blood is transported from the lungs by the _____.
pulmonary vein
pulmonary artery
trachea
bronchi
Answer:
Pulmonary artery
Explanation:
Answer:
B. Pulmonary Artery
Explanation:
just cause i had to learn this
Examples of homozygous recessive?
Answer:
Please mark as brainliest....thanks!!!
Explanation:
An organism can be homozygous dominant if it carries two copies of the same dominant allele, or homozygous recessive if it carries two copies of the same recessive allele. Heterozygous means that an organism has two different alleles of a gene.
A homozygous recessive allele combination contains two recessive alleles and expresses the recessive phenotype. For example, the gene for seed shape in pea plants exists in two forms, one form (or allele) for round seed shape (R) and the other for wrinkled seed shape (r)
Credit:
Genotypes and phenotypes
Homozygous: A Genetics Definition - ThoughtCo
What will happen if reading the code in two pairs of nucleotides is not sufficient
Answer:
The nucleotide triplet that encodes an amino acid is called a codon. Each group of three nucleotides encodes one amino acid. Since there are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate (more than one codon per amino acid, in most cases).
Explanation:
Quando é necessária a análise dos efeitos de substâncias, naturais ou artificiais sobre animais ou vegetais, aquáticos ou terrestres que compõem a biosfera estamos nos referente a
Resposta:
Ecotoxicologia
Explicação:
A ecotoxicologia é o estudo das interações que os seres vivos possuem não só entre si, mas também com o ambiente em que esses seres vivem.
Estudos de ecotoxicologia buscam compreender os diferentes tipos de reações causadas por substâncias químicas, bioquímicas e os processos biológicos que podem ocasionar essas reações, considerando a sensibilidade que diferentes organismos possuem a essas substâncias e os potenciais toxicológicos delas.
What is the term used to describe the build-up of a higher concentration of H+ on one side of the inner membrane of the mitochondrion than on the other side during the electron transport chain?
Answer:
electrochemical proton gradient
Explanation:
The electrochemical proton gradient is defined as the difference in the proton concentration or hydrogen ions (H+) concentration across a inner mitochondrial membrane during the electron transport chain.
The electrochemical proton gradient is build due to the active transport of ions across the cell membrane which is useful for ATP synthesis during the electron transport chain by the coupling of the electrochemical gradient across the membrane.
Hence, the term used is electrochemical proton gradient.
Answer:
chemiosmotic gradient
Explanation:
The other guy is wrong, he caused me to fail a quiz, lol but I re-did the test and got a 100% on it so yeah enjoy!
An organism changes significantly from the parent generation to the offspring generation and the stabilizes what type of evolution is this
Answer:
Punctuated equilibrium
Explanation:
This is an example of punctuated equilibrium, in which the development of a new species occurs very quickly and then stabilizes in subsequent generations.
Which is a correct statement about mutation?
A: Mutation decrease variety in the population.
B: Mutation increase variety in a population.
C: Mutation ensure alleles never change.
D: Mutation are always bad.
Answer: B: Mutation increase variety in a population.
Explanation:Mutations are changes to an organism's DNA and are an important driver of diversity in populations. Species evolve because of the accumulation of mutations that occur over time. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.
Early scientists were conflicted about the mechanism by which cells were created, with some scientists holding the viewpoint that cells were spontaneously crystallized in what was known as free cell formation. Robert Remak discovered ways to fix and observe cell membranes in various stages of cell division. These findings led Rudolf Virchow to proclaim in 1855, Omnis cellula e cellula (every cell comes from another cell), thus completing the tenets of cell theory.
Answer: All cells come from preexisting cells.
Explanation:
The given paragraph is about cells develop from the preexisting cells. The doubling of the genetic material in the S-phase is the triggering mechanism for cell division. In the process of mitosis the genetic material get reduced. The daughter cells vary by the amount of genetic material they receive. This proves that the new cells form from the pre-existing cells.
Research findings suggest that symptoms of schizophrenia are more likely to be present when the individual has a genetic predisposition to schizophrenia and also experiences a stressful environmental event. These findings are consistent with a model of _______________________. Group of answer choices probandwise concordance gene-environment interaction reactive genotype-environment correlation active genotype-environment correlation
Answer: gene-environment interaction
Explanation:
Schizophrenia is a disorder associated with the psychology and mental make up of the person. The person interprets the reality abnormally. This is associated with hallucination, disordered behavior and delusions.
The gene and the environmental interaction both play an important role in development of this disorder. The environment factors like stress can be dominant over the gene expression. If a person has genes for development of schizophrenia along with the stressed environment then the chances of development of schizophrenia will be prominent.
WILL VOTE MOST BRAINLIEST
Many hardwood trees are large in size and can live upwards of 300 years. Oak trees can sometimes take up to 20 years to produce their first seeds. The reproductive strategy of the oak tree is best described as which of the following?
A) an r-selected reproductive strategy
B) a K-selected reproductive strategy
C) a reproductive strategy that allows the oak tree to exceed the carrying capacity of the environment.
Disadvantages of asexual reproduction are
Answer:
Explanation:
it does not lead to genetic variation in a population.
the species may only be suited to one habitat.
disease may affect all the individuals in a population.
Answer:
No different genees are used so no new offspring with newer or better immunity or characteritics are born is almost like a clone just like thier parent.
Explanation:
who causes someone to have a bar head
Answer:
the barber
Explanation:
he cuts hair
How does the use of nonrenewable resources compare to the use of renewable resources?
Answer:
the letter answer would be C for anyone on edge 2020.
C. the overuse of renewable resources can lead to problems similar to those associated with the use of nonrenewable resources.
good luck!
What is Comparative Anatomy?
Answer: comparative anatomy is the study of similarities and differences in the anatomy of different species. It is closely related to evolutionary and phylogeny.
Answer:
Comparative anatomy is the study of similarities and differences in the anatomy of different species. It is closely related to evolutionary biology and phylogeny
Explanation:
features of seed dispersed by animals
Answer:
Animals disperse seeds in several ways. First, some plants, like the burr at left, have barbs or other structures that get tangled in animal fur or feathers, and are then carried to new sites. Other plants produce their seeds inside fleshy fruits that then get eaten be an animal.
Recombinant DNA molecules:_________.a) contain DNA combined from two different organisms b) are made using restriction endonucleases to generate 'sticky ends' or 5' overhangs c) are made using enzymes that recognize sequence palindromes d) need ligase activity during their construction to seal the sugar-phosphate backbone e) all of the above
Answer:
a) contain DNA combined from two different organisms
Select all that apply.
The male and female parts of a flower are the _____.
· pistil
· stamen
· receptacle
· sepal
· petal
· tendril
Answer:
For the male part of a flower, it is called a stamen. For a female, it would be called the pistil.
the female and male part is the stamen and pistil
