What happens when light hits the pigment in photosystem II?
A. It alters the shape of the photosystem II, allowing the light to pass into the thylakoids.
B. It sets off a reaction that releases water molecules into the inner space of the thylakoids.
C. It alters the shape of the photosystem II protein, releasing the water-splitting enzyme.
D. It sets off a reaction that moves energy through the proteins of the thylakoids membrane.
Answer: D
Explanation:
When a photon hit photosystem II, light energy absorbed by one of the pigments in photosystem II, energy is carried from one pigment to another and reach down to the reaction center.
Answer:
It sets off a reaction that moves energy through the proteins of the thylakoids membrane.
Explanation:
Ape-x
how GMO affect evolution
Which term describes organ systems that work together and maintain steady internal conditions when external conditions change?
a.tissues
b.neurons
c.cooperation
d.homeostasis
Answer:
I believe it is D.
Explanation:
Homeostasis refers to the relatively stable state inside the body of an animal. Animal organs and organ systems constantly adjust to internal and external changes in order to maintain this steady state
Answer:
d. Homeostasis
Explanation:
Homeostasis is the process of maintaining a stable internal environment despite changes in the external environment.
Hope this will help. Please mark me brainliest.
Please i need help
What is the answer?
Answer:
50% I think
Explanation:
I put in on a square chart with rr at the top and Rr on the side. You'd get two offspring with Rr and two with rr. (Lowercase stand for ressesive traits and capital leters stand for dominant traits)
The ocean layer of rapid temperature change with depth is known as the _____. thermocline mixed zone deep zone trophic level
Answer:
Thermocline
Explanation:
True of False - Acne is a skin disorder/disease that affects the integumentary system.
Answer:
Hello There!!
Explanation:
I believe the answer is True.
hope this helps,have a great day!!
~Pinky~
Answer:
True
Explanation:
I think the integumentary system is part of the epidermal layer where acne occurs.
expliaca cómo influye la polaridad de las moléculas del agua en las siguientes propiedades
A genomic researcher is analyzing the genome of different species of raptors. She finds that a particular sequence in the Bald Eagle genome is identical to a sequence found in the Red Tailed Hawk, while most other sequences in those two genomes differ at many nucleotides. (The most recent common ancestor between Bald Eagles and Red Tailed Hawks was approximately 6.8 million years ago, which is plenty of time for mutation to generate DNA sequence variation.) Which of the following could explain the identical sequence in these otherwise differing genomes?
a. The sequence encodes a protein critical for the production of feather color.
b. The sequence encodes a gene that is critical for life and cannot be easily mutated while retaining function.
c. The sequence is from an intron of a gene that encodes a protein in connective tissue.
d. None of these
Answer:
d. None of these
Explanation:
Probably the identical sequence found in both species is an ultraconserved sequence.
An ultraconserved element is a particular DNI sequence that remains exactly the same through evolution, with almost no modification, and that is shared by at least two completely different species.
These ultraconserved DNI portions seem to be highly essential for life. However, their function could not be determined yet. Most of them do not codify for proteins, but they could play a significant role in gene regulation.
It is suggested that these sequences are so significant for life that only a small change would compromise the organism´s aptitude.
The statement 'the sequence encodes a gene that is critical for life and cannot be easily mutated while retaining function' could explain the identical sequences (Option B).
What is sequence homo-logy?The term sequence homo-logy makes reference to the similarity between nucleotide sequences due to a common origin.
If a sequence is identical between two or more species, then it exhibits a 100% sequence homo-logy.Sequence homo-logy enables the determination of the level of functional conservation in a given gene.In conclusion, the statement 'the sequence encodes a gene that is critical for life and cannot be easily mutated while retaining function' could explain the identical sequences (Option B).
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Scientists studying a wild population of mantled howier monkeys found the werage birth rate to be 0.22 and the average death rate to be 0.12. At the start of the study, the population consisted of 13 monkeys. Assuming no immigration or emigration, which of the following best describes the change in population size that will occur over the next year?
a. The population size will decrease because a population of 13 is too small to sustain itself.
b. The population will decrease because more monkeys are dying each year than are being born.
c. The population will increase exponentially because it is so small that there are likely few competitors and abundant resources
d. The population will increase because more monkeys are being born each year than are dying.
Answer:
d. The population will increase because more monkeys are being born each year than are dying.
Explanation:
The population of mantled howier monkeys will increase because more monkeys are being born each year than are dying. The birth rate is 0.22 whereas the death rate is 0.12 which leads to increase in the population of mantled howier monkeys. So due to higher birth rate of mantled howier monkeys than death rate, increase occur in the population of mantled howier monkeys if the resources such as food, water and space is present in large amount.
Question
Webbed feet are to ducks, as waterproof coats are to
geese
moles
anglerfish
0 0
Newfoundland dogs
Answer:
Newfoundland dogs
Explanation:
All primates have:
Group of answer choices
A dental comb
Flexible limbs
A grooming claw
Long snouts
Answer:
a dental comb. hope helpful answer
34. Which system supports the body and protects organs?
muscular
digestive
Jated
O skeletal
integumentary
Answer:
Explanation:
The skeletal system
The skeletal system works as a support structure for your body. It gives the body its shape, allowing movement.
Energy requires a balanced diet, physical activity, adequate sleep, satisfying work and opportunities for positive interaction.
ed
Select one:
out of
True
False
question
-on 2
While the amount varies, adults generally need
hours of sleep
vet
ered
Select one:
ts out of
a. four
b. between six and eight hours
Flag question
c. ten
Answer: 1. True
2. Between six and right hours
Explanation:
1. Energy simply refers to the ability to do work. It's the strength that's required to be able to sustain a mental or physical activity.
It should be noted that fir positive interaction, energy requires physical activity, a balanced diet, adequate sleep, satisfying work and opportunities. Therefore, the statement is true.
2. Even though the hours of sleep that's used by people typically varies, adults generally need about six to eight hours of sleep.
Broad spectrum antibiotics target only specific subsets of bacteria.
true
false
Answer:
I believe its true. But I am not entiretly sure.
According to the core-satellite hypothesis, Group of answer choices most species are common satellite species are found in many sites surrounding core sites core species are found at few sites abundance and occurrence are linearly related
Answer:
abundance and occurrence are linearly related
Explanation:
The core-satellite hypothesis states that several species will be widespread and several species will be scarce. This is based on the assumption or prediction that species habitation is distributed bimodally.
Hence, according to the core-satellite hypothesis, it is believed that "abundance and occurrence are linearly related."
As there is an increase in the level or number of species, the chance of occurrence or seeing their species increases.
If a drug was developed that interfered with the proper functioning of the microtubules found within the axons of neurons, how would you expect this to impact axonal transport processes
Answer and explanation:
If a drug that interfered with the functioning of microtubules found in axons were to be developed, I would expect that axonal transport would be inhibited or at least severely impaired.
Microtubules are proteins made of tubulin that are of key importance in the transport of different proteins, organelles, and synaptic vesicles (among others) to and from the neuron's soma through its axon. Microtubules are part of the cytoskeleton, they rearrange themselves in order to run along the length of the axon so motor proteins like kinesin and dynein can carry diverse structures all through the neuron.
If microtubules were to cease functioning, axonal transport would stop and many processes of great importance for the nervous system, such as neurotransmission, would be hugely affected. This would most likely produce neurological disease.
Please answer 8,9, and 10 for 20 points plus brainliest :) link=reported, those dont help
Answer:
8. T= d/s = 139/13 = 11.1 seconds (rounded to 1dp)
9. d= sxt = 3 x 15 = 45m
10. d= sxt = 2.5 x 5 = 12.5m
Explanation:
Why do we not fine too many meteorites on the surface of the earth
Answer:
Explanation:
The reason why we do not find any meteorites on the surface of the earth is because the meteorites burn up in the atmosphere of the earth before the come down so we can find them in the ocean or in space.
Answer and Explanation:
Many of the meteors burn up in the atmosphere before they can even turn into meteorites.
#teamtrees #PAW (Plant And Water)
Which of the following answers is the same level of organization as the
heart? *
Define human trafficking
Answer:
Is the trade of humans for the purpose of forced labour
The Law of Conservation of Energy states that energy cannot be created or destroyed, but energy can change *
A) its total mass
B) its total volume
C) from one form to another
D) from one state of matter to another
Answer:
C
Explanation:
Energy can change from one form to another.
The chemical reaction equation of photosynthesis is shown here:
6CO2 + 6H2O C6H1206
What information is not given in this equation,
It does not show if the reaction is reversible
It does not show the reactants needed for the reaction
It does not show that photosynthesis consists of many separate steps.
It does not show the number of molecules required to produce glucose.
Answer:
It does not show that photosynthesis consists of many separate steps.
Explanation:
Photosynthesis is the metabolic process whereby green plants manufacture their food from inorganic sources in the presence of sunlight as energy source. The chemical equation of the photosynthetic process is given as follows:
6CO2 + 6H2O → C6H1206 + 6O2
The above equation only shows a summary of the photosynthetic process, however, it fails to show that photosynthesis still requires a lot of separate steps to occur. For example, the water molecule undergoes photolysis while the CO2 molecule enters the Calvin cycle. Hence, this equation does not show that photosynthesis consists of many separate steps.
Answer:
C
Explanation:
EDGE2022
Environmental factors can also lead to genetic variation by?
Will give Brainlyiest please hurry
Answer:
Genetic variation among plant populations often occurs along different climatic gradients, such as temperature and precipitation gradients.
Environmental factors are often responsible for the patterns of genetic structure observed at small spatial scales (Sacks, Brown, & Ernest, 2004).
Which cell process is best modeled by the diagram? Cell Process outside of cell membrane inside of cell
passive transport
facilitated diffusion
osmosis
exocytosis
The cell membrane acts as a barrier and protects the cell from foreign substances. It regulates the entry and exit of proteins and compounds by regulating transport.
The correct option is:
Option D. Exocytosis
The cell process can be explained as:
When a solute travels from high to low electrochemical potential is called passive transport.When a solute moves passively with the help of membrane proteins across the membrane then they are called facilitated diffusion.When a solvent moves from a region of high to low water concentration is called osmosis.When secretory vesicles fuse with the plasma membrane and release the content into extracellular cavities is called exocytosis.Therefore, the process is of exocytosis.
To learn more about exocytosis follow the link:
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Answer:
Exocytosis
Explanation:
Took the quiz and got this correct.
why are the chances for a husband and wife having either a boy or girl 50:50?
What examples of species diversity do you see in these ecosystems and around your home?
Answer:
Two example of ecosystem with high species is Tropical Rainforest Ecosystems and River and Stream Ecosystems. Both has large number of different species and large number of individuals of different species. I hope the answer helps. Thank you for posting your question here.
Explanation:
The number of species or species richness in an ecological community is indicated by species diversity. E.g: A woodland forest with 4-5 different tree species, tropical rain forest, etc.
Ecosystems that are more diversified tend to be more productive.An ecosystem is more sustainable and stable when it has a greater diversity of species and production.The ability to endure environmental pressures like drought or invasive infestations increases with ecological diversity.An ecosystem's ability to respond to any disaster depends on its species richness.
Each species in communities with a diversity of species can utilize a varied proportion of the resources according to their needs. For instance, plants with smaller roots may access shallow soil to collect water and minerals, whereas plants with larger roots can access deeper soil.
Therefore, rich diversity is essential to human survival.
Learn more about ecosystem, here:
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#SPJ5
What two species work together and against each other?
Which statement best describes the atoms of the gas neon
Answer:
they move freely in all directions
Explanation:
this is the reason im right.
Functions of Proteins
list the functions of proteins in the text area below
Answer:
provide structure
fight disease
regulate cell process
transport substances
Explanation:
5. Which statement best describes the molecular structure of protein, along with one of the
functions of proteins?
a. It is a straight chain hydrocarbon that can help fight disease
b. It is a complex, folded chain that helps regulate cell processes
C. It is a simple carbon, hydrogen and oxygen molecule that creates movement
d. It is a chain of nucleotides and forms muscle, bone, and ligaments
Answer:
B
Explanation:
Proteins have 4 levels of folds, and help regulate cell processes.