____________________ is a series of chemical reactions that convert light energy, water, and carbon dioxide into glucose and oxygen. Photoperiodism Cellular respiration Photosynthesis Pollination
Answer:
Photosynthesis
Explanation:
7. An extremely rare X-linked recessive genetic disorder known as Norrie disease affects the eyes
and can lead to blindness and in some cases hearing loss. There are only 400 known cases of
Norrie disease worldwide. Explain why it is virtually impossible for a baby girl to be born with
Norrie disease.
Answer: Girls need to inherit two affected chromosomes to develop the disease, and it may also happen that the affected chromosome is inactivated in the eye (if it has only one)
Explanation:
Norrie's disease is an inherited eye disorder affecting males, which is characterized by abnormal or immature development of the retina (light-sensitive nerve tissue lining the back of the eye) and possible deterioration of the iris (colored part of the eye) and eyeballs. X-linked recessive inheritance is one of the ways in which a genetic trait or condition is passed from parent to child when there are mutations in a gene on the X chromosome from either the father or the mother. Females possess two X chromosomes, while males possess one X and one Y chromosome. In males, the presence of a mutation on the X chromosome causes the disease, since it is the only X they possess. In females, both X chromosomes need to be affected if it is a recessive condition.
So, the disease is inherited in an X-linked recessive manner, which means that almost all affected individuals are male. However, the sons of affected males will not have the mutation since they only inherit the Y chromosome, while all their daughters will be genetic carriers of the mutation because they inherit the affected X chromosome, although without clinical symptoms but being carriers. On the other hand, the mother will pass one of her two X chromosomes (which may or may not be affected) randomly to both her male and female offspring (if they are male, they will be affected and if they are female they will be carriers unless they also inherit an X chromosome from their father). So the only way for females to develop the disease is for their two copies of the gene to be mutated if both parents have the mutation.
But female carriers could be affected by inactivation of their X chromosome with the correct sequence. X chromosome inactivation is a random process that happens separately in individual cells during embryonic development. That is, one cell may inactivate the paternal X chromosome, while others may inactivate the maternal X chromosome. This is because a dosage compensation is necessary, since the Y chromosome in males is not homologous to the X, it does not have the same genes, so if females would express both X chromosomes, they would have twice as many genes as a male. All the descendant cells of each of these original cells will maintain the same pattern of X chromosome inactivation.
In females, one X chromosome is inactivated in each tissue in an arbitrary manner. Then, in addition to having to inherit two affected chromosomes, it may also happen that the affected chromosome is inactivated in the eye (if it has only one).
Briefly describe ANY environmental condition that affects photosynthesis.
Answer:
Light intensity
Explanation:
without enough light a plant cannot photosynthesise very quickly even if there is plenty of water and carbon dioxide
What are some short and long term positive benefits of the printing press
short-term and long-term positive contribution of the printing press was and is the ability to disseminate knowledge quickly. Through the printing press, more people could have access to new ideas, and those ideas radically changed the landscape of the Holy Roman Empire.
Who is known as the father of Natural selection?
Answer:
Darwin's theory.
Explanation:
explain why variagated plants accumulate less food than non variegated plants under similar conditions
Explanation:
they have less chlorophyll in them. Thats the green stuff that turns sunlight into energy, via photosynthesis, so less 'green' means less ability to make food. As rate of chlorophyll in non-variegated leaf is more than that of variegated leaf,as more sunlight is trapped in case of non-variegated leaf
Please answer correctly and quickly
Answer:
C.
Explanation:
Need help ASAP! Will mark brainliest;) No links please, will report
Which represents a misuse of antibiotics which could lead to antibiotic resistant?
A. Finishing the antibiotic prescription even if you are feeling better days before the prescription ends.
B. Physicians prescribing antibiotics to treat influenza (virus)
C. Taking antibiotics only when a bacterial infection is present
D. Physicians prescribing antibiotics to treat strep throat (bacteria)
Answer:
Bacteria and fungi are germs found inside and outside of our bodies. ... Antibiotics are critical tools for preventing and treating infections caused by specific bacteria in people, animals, ... How can taking antibiotics contribute to antibiotic resistance? ... Never pressure your doctor to prescribe an antibiotic.
People also ask
Explanation:
giving brainliest
Which part of the body connects the bones together and prevents them from rubbing against each other?
Blood
Cartilage
Muscle
Spinal cord
Answer:
b! (cartaladge)
Explanation:
Answer: Cartilage
Explanation: It’s a soft pad in between your joints that prevents them from rubbing together. Usually it is warn out in your years of life.
6. Below, fill in the missing bases from this DNA molecule.
Answer: g and c, c and g, a and t, t and a, g and c, c and g, a and t, c and g, t and a, c and g, g and c, c and g, a and t. brainliest?
Explanation:
The missing bases from this DNA molecule are filled as below:
GC, CG, TA, AT, TA, GC, CG, AT, CG, GC, TA, CG, GC, CG, and AT. What is a DNA molecule?A DNA molecule may be defined as a molecule that comprises the biological instructions that construct each species unique in terms of genetic sequences.
The nucleotide bases are always bound to each other in a complementary form, i.e. A is bonded to T with the help of two hydrogen bonds, while C is bonded to G with the help of three hydrogen bonds.
Apart from this, according to Chargaff's rule, the amount of adenine is always equal to the amount of thymine, while the amount of guanine is always equal to the amount of cytosine.
Therefore, it is well described above.
To learn more about Nucleotide bases, refer to the link:
https://brainly.com/question/15025326
#SPJ5
Which statement describes a possible effect of climate change? Choose all that apply:
A pond of water drying out due to changes in average temperature.
A bear eating lots of food to store fat before hibernation because it needs to stock up on energy for winter.
A beetle adapted to warm temperatures living longer in its habitat and thus killing populations of trees.
Squirrels burying pine cones to be able to eat them later.
Answer:
a pond of water drying out due to changes in average temperature
How are the Hawaiian honeycreepers an example of adaptive radiation?
There were a large variety of honeycreepers that first inhabited the island. They found many different niches, so they were all able to survive.
The honeycreepers that first inhabited the island were able to adapt as the island changed, so that population of birds was able to survive.
There was a diversification of honeycreepers (each with different beak shapes) to help fill various ecological niches.
Answer: In adaptive radiation, many different species evolve from a single ancestor species. Each new species evolves to exploit a different niche, such as food source. In the example above, Hawaiian honeycreepers evolved a range of bill forms in response to available food sources on the Hawaiian archipelago. The honeycreepers dispersed from one founder species, and evolved in response to natural selection based on different food sources in their isolated habitats provided by water. Seed-eating birds evolved thick, short beaks.
climate change storys
We pollute the environment with greenhouse gasses to the earth's climate is getting warmer
10 points for each answer no links
Ethan began making a model to show the processes which resulted in the formation of oceans.
Which of the following would be the next step in the process?
A. The crust is broken down
B. Earths crust moves
C. Earths plates meet
D. Seafloor spreading
Answer:
c
Explanation:
all steps of protien synthesis
answer:
it occurs in two stages: transcription and translation
explanation:
transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. it includes three steps: initiation, elongation, and termination. after the mRNA is processed, it carries the instructions to a ribosome in the cytoplasm.translation occurs at the ribosome, which consists of rRNA and proteins. in translation, the instructions in mRNA are read, and tRNA brings the correct sequence of amino acids to the ribosome. then, rRNA helps bonds form between the amino acids, producing a polypeptide chain.3. In a food web which organisms are decomposers?
These are usually multicellular animals such as earthworms, crabs, slugs, vultures, etc.
Hope it helps![tex] \huge\color{purple}{보라 해}[/tex]How would you expect the number of births to compare to the number of deaths in a population that was changing?
2. Why is it important to have diversity within a population?
a. Better chances of survival in a changing environment
b. Mutations
c. To reach carrying capacity
d. To encourage evolution
Answer: I believe the correct answer is A
Explanation:
Which of the following mixtures forms a solution?
A. melting ice
B.
sand and water
C. boiling water
D. alcohol in water
Answer:
D. alcohol in water
Explanation:
All the other answers do not form a solution. Melting ice, as well as boiling water, is still pure water. Sand and water are two different substances, however, sand does not dissolve in water to create a homogeonous solution, leaving alcohol and water, which DO combine into a homogeonous solution.
How does bios mass energy work? what is the political obstacle keeping biomass from being used ?
a) Biomass is renewable organic material that comes from plants and animals. ... Biomass contains stored chemical energy from the sun. Plants produce biomass through photosynthesis. Biomass can be burned directly for heat or converted to renewable liquid and gaseous fuels through various processes
b) Obstacle keeping biomass from being used ?
Biomass energy is not as efficient as fossil fuels. Some biofuels, like Ethanol, is relatively inefficient as compared to gasoline. It is not entirely clean. Can lead to deforestation. Biomass plants require a lot of space.what is the answer to this
Answer:
to allow implantation of the embryo
the first box is correct
(b)
The allele for blue eyes is recessive (b).
The allele for brown eyes is dominant (B).
A woman has blue eyes.
What are the woman's alleles?
Tick one box.
BB
Bb
bb
Which of the following describes an impact of floods on ecosystems?
Answer:
Soil erosion.
Explanation:
Soil erosion is the impact of floods on ecosystems because the floods moves very fast which takes soil with itself. Due to soil erosion, the productive layer of the soil or the layer in which nutrients are present are eroded which has a negative impact on the plants due to unavailability of nutrients. The floods moves very fast and the soil has no the ability to hold its particle tightly which leads to erosion of the soil that negatively affected the ecosystem.
I need help asapp
pls no links
correct answer gets brainest!✨
Answer:
i think its a
Explanation:
tell me if im wrong
Define the following and give an example of each.
Answer:
Omnivore - An animal that eats both plants and animals.
Scavenger - An animal that feeds on dead animals/plants.
Herbivore - An animal that only feeds off of plants.
Answer:
Explanation:
An omnivore is an animal and or person that eats meat and plants.
A scavenger is an animal the feeds on dead organisms.
A herbivore is an animal that only eats plants.
Plants lose water from their above ground surfaces in the process of transpiration. Most of this water is lost from stomata, microscopic openings in the leaves. Excess water loss can have a negative effect on the growth, development, and reproduction of a plant. Severe water loss can be fatal. Environmental factors have a major impact on the rate of plant transpiration. text... The curve below illustrates the rate of transpiration related to the percent of open stomata on the leaf of a particular plant. Explain why the curve levels off with increasing percentage of open stomata per area of the leaf.
Answer:
E
Explanation:
thanks again for your help and support you in whatever way you can get a good night's sleep and I will talk to you later I
The curve level off with an increasing percentage of open stomata per area of the leaf because the population decreases because of death. The unaffected plant species gain resources.
What is transpiration?Plant roots absorb a considerable amount of water from the soil. This water travels to various parts of the plant via sap ascending. The entire amount of water absorbed by the plant exceeds its requirement.
Only a fraction of this water from vapor is absorbed by plant aerial parts such as (stem, leaves, buds, and flowers), which account for around 95% of total absorbed water. This is known as transpiration.
Therefore, because the population reduces due to death, the curve flattens out with an increasing percentage of open stomata per area of the leaf. Plant species that are not harmed gain resources.
To learn more about transpiration, refer to the link:
https://brainly.com/question/13891305
#SPJ2
Draw conclusions: Natural selection is the process by which favorable traits tend to
increase in frequency over time.
How does this experiment illustrate natural selection?
Answer:
it illustrated natural selection because the most favorable traits live longer than the unfavorable traits.
Explanation:
Which best explains why all of the Earth’s freshwater is not available for human use?
Answer:
2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.
Explanation:
99% of liquid freshwater on Earth is Stored as Ground water
Much of it probably isn't accessible to us Human.
About 71 % of Earth is covered in water, and the Ocean holds most of it but this is salt water, almost all fresh water is stored underground
Which is the best definition of a phylogenetic tree?
Answer: A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.
Explanation:hope I helped (can I get braincrown)
Definition: A phylogenetic tree is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor
Hope this helps!
A breed of mice have fur colors that are white, brown, and speckled brown and white. What type of inheritance does fur color follow? What are the alleles for the speckled brown and white mice?
Answer:
The type of inheritance that the fur color follows is codominance. The alleles of the speckled brown and white mice are WB, where both alleles are expressed.