Answer:
The structural unit of photosynthesis is the chloroplast. Prokaryotic and eukaryotic photosynthetic organisms possess flattened sacs or vesicles called thylakoids, which contain photosynthetic pigments. Chlorophyll molecules are attached to specific proteins embedded within membranes, along with carotenoids and other components necessary for photosynthesis.
Explanation:
Chloroplasts are typical and exclusive organelles of plant cells that possess chlorophyll. Because of them, plants are capable of carrying out the photosynthesis process, a process that transforms light energy into chemical energy contained in ATP molecules. The inside is filled with a gel called a stroma. It presents a DNA independent of the nucleus and plastoribosomes. Immersed in the stroma, there are flattened sacs called thylakoids or lamellae, the interior of which is called lumen. Thylakoids can spread throughout the stroma or stack in bundles called grana. In the membrane of grana or thylakoids are located the enzymatic systems that capture the energy of the sun and carry out the transport of electrons to form ATP.
If a mother is using drug during her pregnancy, her baby can be born with addiction syndrome towards the same drug. Explain.
What characteristic of water helps in regulating cell temperature and maintaining homeostasis?
Someone please help i need a claim, evidence, then a reasoning !
Answer:
The characteristic of water that helps regulate the temperature of the cells and maintain homeostasis is specific heat (Claim).
Explanation:
Specific heat is a physical property that is defined as the amount of heat needed to raise one gram of a substance by one degree Celsius. In the case of water, its specific heat is higher than that of other substances, being its value 4.186 joules/gram °C, or also 1 calorie/gram °C.
- Claim: The property of water that allows cells to regulate temperature and maintain homeostasis is specific heat.
- Evidence: a high specific heat value of water means that in bodies that possess this molecule in large quantities it is more difficult to raise the temperature
- Reasoning: Living beings are formed mostly by a high percentage of water, much of it in the intracellular compartment. The specific high heat of the water makes it difficult to have sudden changes in the internal temperature, even when the environmental temperature is high, which is a property of water that allows thermoregulation and maintains the balance or homeostasis.
According to Jeffrey Gray, a British neuropsychologist, the behavioral inhibition system (BIS) is activated by danger signals ________, resulting in the experience of anxiety. a. within the amygdala only b. arising from both the brain stem and the cortex c. descending from the cortex d. ascending from the brain stem
Answer:
c. arising from both the brain stem and the cortex
Explanation:
The behavioral inhibition system(BIS) according to Jeffery Gray can be explained as neuropsychological system which gives the prediction of response from individual to signal of anxiety-relevant in a particular area or environment. He stressed that BIS have a relationship of sensitivity to punishment along with avoidance motivation. The The behavioral inhibition system is usually activated when individual is experiencing negative event/ stimuli, boring moments, or punishment. Then by the time the body respond to the cues of the negative stimuli involving punishment, then the (BIS) brings avoidance of the negative event. When there is activity of( BIS) then there will be heightened sensitivity to punishment as well as nonreward experience.
It should be noted that the behavioral inhibition system (BIS) is activated by danger signals arising from both the brain stem and the cortex resulting in the experience of anxiety.
Why was miasma theory replaced?
O John Snow collected data that showed that germs cause disease.
O John Snow collected data that showed there was another cause to disease.
O New technology showed that miasma cannot exist.
O New technology showed that germs cause disease.
Answer:
Miasma theory was replaced because John Snow collected data that showed that germs cause disease.
Explanation:
The theory of miasma was proposed in the past when some scientists —like doctors Thomas Sydenham and Giovanni Maria Lancisi— thought that disease was the product of emanations originated by the decomposition of organic matter. This theory was based on the fact that diseases predominated in places with poor hygienic conditions.
John Snow, an english physician, was one of the main contributors to the microbial theory of disease. In 1854, while a cholera epidemic was occurring, he collected data and organized it statistically and then concluded that the disease was caused by germs present in drinking water. This data was contrary to the miasma theory, which would eventually be displaced by the microbial theory of the disease.
3. Tupai is part of the Leeward Islands. For years, people were not
allowed on this island. Recently, it has been opened to tourists. How
will increased development and human interactions likely affect
succession on this island?
A. Lichens will increase quickly, creating a climax community.
B. Mature trees will decrease, creating a pioneer community.
C. Biodiversity will decrease as the number of species decreases.
D. More diverse species will move into the area as biodiversity increases.
Answer:
C. Biodiversity will decrease as the number of species decreases.
Explanation:
When Tupai which is part of the Leeward Islands is opened up to tourists, the need for infrastructural development will arise in the area.
For instance, there will be a great need to build hotels and resorts for the tourists, hospitals to handle medical emergencies, houses for residents that may move into the area in order to provide essential services to the visiting tourists.
All these will further decrease the biodiversity in the area as entire communities of organisms will be displaced and ecosystems destroyed in the wake of infrastructural development. This will ultimately lead to a decrease in biodiversity and number of species.
EMERGENCY!!!!! Pregnant female bears do not go into deep hibernation in the winter like other bears. why might this be a physiological adaptation for mother bears?
a. the pregnant bear's metabolic rate would rise too high, and the fat stores would be gone quickly
b. the fat stores that bears building up in the summer and fall would be wasted on a pregnant bear
c. pregnant bears need to maintain a higher metabolism that nonpregnant bears
d. pregnant bears are unable to build up fat stores during the summer and fall moths.
Answer:
c. pregnant bears need to maintain a higher metabolism that nonpregnant bears
Explanation:
I just did it
Root systems can generate new cells. A. True B. False
Answer:
The Answer Is (A) True .
2. When you look at white light through a glass
prism, you see a rainbow of colors called a
a. spectrograph.
b. spectrum
c. parallax
d. light-year.
Answer:
spectrum
Explanation:
I think its C) spectrum
Answer: the answer is a spectrum
Explanation:
Cuz it’s a spectrum
I will mark brainest if you get it right
Sunlight, water, and wind are examples of inexhaustible forms of energy. What does inexhaustible mean?
A. We will run out at any minute.
B. We will run out in 100 years.
C. We will never run out.
D. We will run out in 20 years.
Answer:
c
Explanation:
C. We will never run out.
sooooooooooo can i get bralist
What is in blood that makes the different blood types ?
A) The type of enzyme(s) on the surface of the blood cell
B) The type of DNA inside
C) The chemical makeup of the blood molecule
D) The shape of the blood cell
Help please!
I know one of the answers is that the lower temperature means the reaction will happen slower, but what’s the second answer?
Answer with Explanation:
Hydrogen peroxide is considered "unstable," thus, storing it in the refrigerator provides two advantages:
1. It slows down thermal decomposition.
The rate of decomposition slows down when the temperature is lowered. It increases when the temperature rises.2. It prevents photolytic decomposition.
Photolytic decomposition happens when hydrogen peroxide is exposed to sunlight or bright light. It therefore increases the rate of reaction. Therefore, hydrogen peroxide should be stored in a cool and dark place, such as the refrigerator.PLEASE HELP
"Watermelon snow" in Antarctica is caused by a species of photosynthetic green algae that thrives in subzero temperatures (Chlamydomonas nivalis). These algae are also found in high altitude in year-round snowfields. In both locations, UV light levels tend to be high. The reddish-pink color of these algae is due to the presence of carotenoid pigments, which absorb blue light while reflecting red light. Those pigments protect the chloroplast from ultraviolet radiation, as well as absorbing heat, which provides the algae with liquid water as the snow melts around it. This molecular variation in plants illustrates
A. relative fitness because the molecular adaptations in chlorophyll pigments have passed to the next generation
B. innate variability because plants have evolved molecular differences to an environmental stimuli
C. unselective adaptation because plants have evolved molecular differences to adapt to different wavelengths of light
D. inclusive fitness because differences in chlorophyll pigments increase the proliferation of beneficial traits in the population
The Answer is D
im not sure this is correct answer
What is the function of tRNA?
a bring an amino acid to the ribosome
b catalyze the assembly of amino acids into a protein
c carry genetic instructions for building a protein
Answer:
[tex]\boxed {\boxed {\sf A. \ Bring \ an \ amino \ acid \ to \ the \ ribosome}}[/tex]
Explanation:
tRNA, or transfer RNA, plays an essential role in the process of protein synthesis (creation).
After DNA is transcripted and translated, the messenger RNA is created in the nucleus and sent to the ribosome. The mRNA has codons or sets of three nucleotides. Then, the tRNA enters. The tRNA has an amino acid (the monomer of proteins) and an anticodon (three nucleotides that are complementary to the mRNA).
The codon and anticodon create base pairs, and the amino acids attach to form a protein.
Based on this information, the best answer choice is A. bring an amino acid to the ribosome
can someone tell me the answers i need to turn this in asap?
Answer: 1. The population will increase because of the safeness. 2. Some animals might starve or become unhealthy because lack of resource. 3. A lot of animals will eventually die.
Explanation:
Good luck btw!!
Write the important of biology in our daily lives with respect to agriculture and industry
Answer:
Biology is an interesting subject that has been intriguing scientific minds for several centuries
Explanation:
Despite exponential developments in technology over the past few centuries, the origin of life on earth is still one of the biggest mysteries yet to be unraveled.
The basis of our very origin and existence on earth lies within the depths of the biological sciences. Biology has an endless array of species( at least as of now because there are an estimated 8.7 million species on earth out of which only 1.9 million species have been discovered, so there is a long way to go!).
Every creation which is a part of nature is so adorable and unique in its own way.
Biology exists every second - when we inhale and exhale each time, respiration is taking place within our bodies, each cell receives oxygenated blood and releases carbon dioxide and other excretory wastes.
Let aside other species, we haven't yet understood our own bodies completely!!How is it that our hearts work so tirelessly throughout our life span, how is it that we are able to interpret even minute emotions and gestures without even understanding the mechanism behind it!.How is it that each one of us is able to perceive things differently?What exactly is consciousness?..The list of questions seeking their answers is endless!
Biology helps us to sort things out and find answers to such questions.
Humans aren’t the only living things biology is concerned with. It also tells us all about plants and animals – how they live, what they’re made up of, and how they interact with mankind and each other. This enables us to make the most of our planet’s natural resources while trying to minimize the impact we have on the environment.
An independent variable is:
A. Remain the same to make an experiment a fair test.
O B. Measured to show the effect of a change.
C. Collected to draw conclusions.
D. Changed to test a hypothesis.
Answer:
The answer is (changed to test a hypothesis)
Explanation:
thats what the definition is
FIFTEEN POINTS!! What is the benefit of CAM photosynthesis?
Increases the rate of sugar produced by photosynthesis
Increases the efficiency of CO2 absorption in the daytime
Reduces the amount of water lost due to hot, daytime conditions
All of the above
Answer:
All of the above
Explanation:
CAM leaves the stomata closed during the day. They are most common in hot, arid environments. During the night, when their stomata are open, these plants take up CO2 and incorporate it into a variety of organic acids.
How do plants turn sunlight into energy?
This needs to have a chemical equation, reactants, and products.
e levels of organization from largest to smallest and describe each.
Answer:
i can get a few months ago
true or false Photosynthesis combines oxygen and carbon dioxide to make ATP.
False
Photosynthesis involvs plants taking in sunlight and carbon dioxide, not oxeygen and carbon dioxide. Oxygen is a byproduct of photosynthesis.
May I have brainliest please? :)
what is genotype ?
hey fantasia
Answer:
a genotype is a type of gene that u can't see but phenotype is a type of gene difference that u can see by ur eyes
can i have brainliest if it helped
stay safe
Answer:
ham na jante hua ka batau
tik byy
What do the smooth ER and the ribosomes have in common
Answer:
they work together to synthesize proteins. the smooth ER store lipids
Explanation:
Andrew spent a day at the beach with his family and noticed thermal energy all around him. Which of the following best describes a type of heat transfer he may have experienced?
Answer:sorry i don’t knowew
Explanation:
Flatworms can be cut in half, creating two new individuals, by _____.
fragmentation
binary fission
multiple fission
budding
Answer:
Fragmentation .
Explanation:
Answer:
Fragmentation
Explanation:
The process of fragmentation is indeed the process of breakage of an organism into various fragments that over time gets developed into a complete organism. Thus, this process is also referred to as the process of splitting.
PLEASE HELP ME! ILL GOVE BRAINLIEST
What aspect of electricity did Ben Franklin’s experiment demonstrate?
Answer:
By conducting the kite experiment Franklin proved that lighting was an electrical discharge and realized that it can be charged over a conductor into the ground providing a safe alternative path and eliminating the risk of deadly fires.
Explanation:
If the Pacific plate is moving at a speed of 5 centimeters per year, how many kilometers will the Pacific plate travel in 1 million years?
Answer: 50 kilometers
Explanation:
From the question, we are informed that the Pacific plate is moving at a speed of 5 centimeters per year. The number of kilometers that the Pacific plate will travel in 1 million years would be calculated as:
= 5 × 1,000,000
= 5,000,000 centimeters
Since 100000 centimeters = 1 kilometer, we would convert 5,000,000 centimeters to kilometers. This will be:
= 5,000,000 / 100,000
= 50 kilometers
You are watching the baseball World Series with your friends and you are amazed at how anyone can hit a fastball. You are arguing with your friends about which systems are most important in hitting the ball. Your friend said the nervous system is involved. Which statement most accurately provides evidence to help support your friend’s claim?
A.
The eyes, part of the nervous system, send messages directly to the arm muscles to swing the bat.
B.
The eye and arm, both part of the nervous system, tell the spinal cord to swing the bat.
C.
The brain and spinal cord, both part of the nervous system, direct the muscles in the arm to swing the bat.
D.
The brain, part of the nervous system, sends a message to the eyes to detect the ball and then the nerves swing the bat.
The correct option is D. The brain, part of the nervous system, sends a message to the eyes to detect the ball and then the nerves swing the bat.
What is brain?
The brain is a sophisticated organ that manages every bodily function as well as thought, memory, emotion, touch, motor skills, vision, respiration, temperature, and hunger. The central nervous system, or CNS, is made up of the spinal cord that emerges from the brain.
There are two distinct parts of the central nervous system: gray matter and white matter. Gray matter in the brain refers to the thicker, outer layer, and white matter to the thinner, inner layer beneath. This arrangement is reversed in the spinal cord, where the gray matter is located within and the white matter is on the outside.
Therefore, The correct option is D. The brain, part of the nervous system, sends a message to the eyes to detect the ball and then the nerves swing the bat.
To learn more about brain, refer to the link:
https://brainly.com/question/11950231
#SPJ2
A 2. Which of the following are features that help scientists classify annelids into their respective classes? O presence of setae and tentacles presence of setae and parapodia presence of setae and septa presence of coelom and parapodia
Answer:
presence of setae and parapodia
Explanation:
Annelids are groups of organisms under the phylum "Annelida". They are organisms that possess the following characteristics or features: setae, parapodia, coelom, tentacles etc. However, via the possession of not of the setae and parapodia, annelids have been classified into four major classes viz: Polychaeta, Oligochaeta, Hiradinea and Archiannelida, on the basis of their setae and parapodia mainly.
- Polychaeta: possess numerous setae and parapodia
- Oligochaeta: few setae, no parapodia
- Hiradinea: No setae, no parapodia
- Archiannelida: No setae, no parapodia
Hence, the presence of setae and parapodia will enable the scientists classify annelids into their respective classes.
Answer:
presence of setae and parapodia
Explanation:
Scientists determine what class Annelids are categorized into based on whether or they have parapodia and/or setae.
is photoshynthesis a chemical change ? yes or no ?
Answer:
Yes, photosynthesis is a chemical change
Explanation:
Photosynthesis is the process through which plants convert light energy into chemical energy. Here is the chemical reaction involved: water and carbon dioxide combine to form glucose and oxygen. Since new chemical species are formed, photosynthesis is clearly a chemical change.
What type of transport uses energy to move substances across the cell membrane
Answer:
it is called the active transport
Explanation:
primary active transport directly uses a source of chemical energy ATP to move molecules across a membrane against are gradient