what molecule absorbs sunlight for photosynthesis
The primary molecule responsible for absorbing sunlight and initiating the process of photosynthesis is chlorophyll.
What is photosynthesis?Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose or other sugars. The primary molecule responsible for absorbing sunlight and initiating the process of photosynthesis is chlorophyll.
Chlorophyll is a pigment found in the chloroplasts of plant cells, as well as in the thylakoid membranes of algae and certain bacteria. It absorbs light in the blue and red wavelengths and reflects green light, which is why plants and other photosynthetic organisms appear green. The energy absorbed by chlorophyll is used to drive the synthesis of glucose and other sugars from carbon dioxide and water, a process called carbon fixation. Other pigments, such as carotenoids and phycobilins, also contribute to the absorption of sunlight in photosynthetic organisms.
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Animal cells contain all of the following structures EXCEPT a
A) nucleus.
B) cell wall.
C) mitochondria.
D) Golgi apparatus.
Which one is different from this list: Lion, Wolf, Tiger, Horse
Driving involves taking some risks __________.
A. Only when you are fatigued
B. Each time you get behind the wheel
C. Only when you are drinking
D. Only when you are under the influence of illegal drugs
B. Each time you get behind the wheel.
What are the risks involved in driving?Driving involves a number of risks, including the possibility of accidents due to human error, mechanical failure, or environmental factors such as weather. Some common risks associated with driving include fatigue, distraction, impaired driving due to drugs or alcohol, reckless or aggressive driving, and driving in hazardous conditions.
Other risks include the possibility of getting lost or stranded, running out of fuel, or encountering road closures or detours. Additionally, there is always the risk of theft or damage to your vehicle, as well as the potential for injury or death to yourself or others on the road. It is important to be aware of these risks and to take steps to minimize them while driving.
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What does autosomal recessive, autosomal dominant and sex-linked mean?
Autosomal recessive inheritance requires two recessive alleles to express a trait, whereas autosomal dominant inheritance requires only one dominant allele.
The terms autosomal recessive, autosomal dominant, and sex-linked refer to different patterns of genetic inheritance.
Autosomal recessive inheritance means that a trait is linked to a gene on one of the non-sex chromosomes (autosomes), and two copies of the recessive allele (homozygous recessive) are needed for an individual to express the trait.In autosomal dominant inheritance, only one copy of the dominant allele is needed for expression of the trait, so affected individuals can be either homozygous dominant or heterozygous.Sex-linked inheritance, often X-linked, means the gene causing the trait is located on a sex chromosome, typically the X chromosome. X-linked recessive disorders are more common in males (XY) because they only have one X chromosome, and a single recessive allele will express the trait. Females (XX), on the other hand, must inherit two recessive alleles to express the trait; otherwise, they are carriers if they inherit one recessive allele.X-linked recessives are expressed in males who inherit only one X chromosome while females must inherit recessive X-linked alleles from both parents to express the trait. This is exemplified by conditions such as red-green color blindness and hemophilia.
How would our lives be different if we had never realized the existence of microorganisms
If a population of 1,000 individuals has 160 rr genotypes, assuming simple dominance by the A allele, what is the frequency of the dominant phenotype in the population?
The frequency of the dominant phenotype in a population of 1,000 individuals with 160 homozygous recessive genotypes is calculated using the Hardy-Weinberg principle to be 84%.
Explanation:To calculate the frequency of the dominant phenotype in a population, one can utilize the Hardy-Weinberg principle. Given that we have 160 rr homozygous recessive individuals in a population of 1,000, we can determine the frequency of the recessive allele (q). Since rr is homozygous recessive, the frequency of recessive homozygotes (q²) is 160/1000 = 0.16. To find q, we take the square root of q², so q = √0.16 = 0.4.
Using p + q = 1, where p is the frequency of the dominant allele, we can calculate p as 1 - q. Therefore, p = 1 - 0.4 = 0.6. The frequency of the dominant phenotype would be represented by those with AA or Aa genotypes. To find the total frequency of the dominant phenotype, we calculate p² (frequency of AA) and 2pq (frequency of Aa).
The frequency of AA (p²) would be 0.6² = 0.36 and the frequency of Aa (2pq) would be 2 × 0.6 × 0.4 = 0.48. Adding these together gives us the frequency of the dominant phenotype which is 0.36 + 0.48 = 0.84 or 84%. Thus, the frequency of the dominant phenotype in this population is 84%.
heat rising in a hot-air balloon is an example of _____ A. conduction B. convection C. radiation D. solar. IF YOU GET IT RIGHT YOU CAN GET BRAINLIEST, FAN, ETC. JUST TELL ME
Answer: Convection
Explanation: Heat rising in a hot-air balloon is an example of ( convection). I just took test I got it right
Heat rising in a hot-air balloon is an example of convection. So, the correct option is (B).
What is Convection?Convection is defined as single or multiphase fluid flow which occurs spontaneously due to the combined effects of physical property heterogeneity and body forces on the fluid, such as density and gravity.
This is also define as the transfer of heat by the movement of a fluid which can be liquid or gas between areas of different temperature. It may be natural or forced which involves a bulk transfer of portions of the fluid.
There are two types of convection which are as follows:
Natural convectionForced convectionSome examples of Convection like hot air rising above a fire, ice melting. Sea breeze or land breeze which is caused by a difference in pressure, blood circulation in warm-blooded animals.
Thus, Heat rising in a hot-air balloon is an example of convection. So, the correct option is (B).
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Identify all of the sinks for the CO2.
Answer:
The main natural carbon sinks are plants, the ocean and soil. Plants grab carbon dioxide from the atmosphere to use in photosynthesis some of this carbon is transferred to soil as plants die and decompose. The oceans are a major carbon storage system for carbon dioxide.
Explanation:
i know im very late but thats the answer
When nuclear power is harnessed, it is captured in the form of _____. steam that turns a turbine electrons that escape through a steel funnel heat that conducts over plastic tubing X-rays
Answer:
steam that turns a turbine
Explanation:
Answer:
When nuclear power is harnessed, it is captured in the form of _____.
heat that conducts over plastic tubing
steam that turns a turbineX-rays
electrons that escape through a steel funnel
Explanation:
what term describes the difference in elevation between the lowest and highest parts of an area?
How many
pairs of spinal nerves off the spinal cord
There are 31 spinal nerves, divided into different regions of the vertebral column. Each one emerges from the vertebral column through the intervertebral foramen.
Explanation:There are 31 spinal nerves, which are named for the level of the spinal cord at which each one emerges. The spinal nerves are divided into different regions of the vertebral column.
There are eight pairs of cervical nerves, twelve pairs of thoracic nerves, five pairs of lumbar nerves, five pairs of sacral nerves, and one pair of coccygeal nerves. Each spinal nerve emerges from the vertebral column through the intervertebral foramen at its designated level.
what are some similarities and differences between the G1 and S stages of interphase?
Final answer:
The G1 phase of interphase is primarily focused on cell growth and preparing the necessary components for DNA replication, with no visible change under the microscope. The S phase is where DNA replication occurs, producing two identical sister chromatids for each chromosome and duplicating centrosomes. Both are preparation steps for cell division, but they differ in function; G1 accumulates resources, while S utilizes them to replicate DNA.
Explanation:
The G1 phase and S phase are both crucial stages in interphase of the cell cycle. During the G1 phase, also known as the first gap, the cell is metabolically active, increasing in size and synthesizing proteins while accumulating the necessary building blocks of chromosomal DNA. Little change is visible under a microscope during this phase; however, the cell prepares for DNA replication by accumulating the necessary materials and energy reserves.
The S phase (synthesis phase) is when DNA replication actually occurs. Each chromosome's DNA is duplicated to form two sister chromatids, attached at the centromere. The cell also duplicates its centrosomes, which are important for mitotic spindle formation during the subsequent mitosis. This phase is essential as it ensures that each new cell will receive an identical set of genetic information.
While both phases are part of interphase and are preparation steps for cell division, their key functions differ. The G1 phase focuses on growth and preparation for DNA synthesis, whereas the S phase is where the actual replication of DNA and centrosomes takes place. Additionally, G1 phase is about accumulating resources and the S phase is about utilizing those resources to synthetize a complete copy of the cell's DNA.
when you exercise explain why both your heart rate and breathing rates increase
Help ASAP!!!PLZ Which of the following could result from an algal bloom in a river?
A) The algae purify the water
B) the local plants produce flowers early
C) fish and other aquatic life die off
D)plant and animal pop increase
How does the body respond to changes in its environment
Answer:
Receptors are groups of specialised cells. They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus. Sense organs contain groups of receptors that respond to specific stimuli.
Several events happen during sexual reproduction in flowering plants. Put these processes in the correct order, ending with the process seen here.
A) fertilization - pollination - seed production - germination
B) pollination - fertilization - seed production - germination
C) fertilization - seed production - pollination - germination
D) germination - pollination - fertilization - seed production
The correct answer is B
When a chameleon eats butterfly, what happens to the number of butterflies in the population? How could a sudden decrease in butterflies affect chameleons?
Which sentences describe the differences between photosynthesis and cellular respiration
This is a molecule that contains both amino and carboxylic acid functional groups. They are the building blocks of protein.
The answer is . Amino Acids
Many bacteria are able to pass small pieces of the hereditary information on their DNA from one bacterial cell to another. This can sometimes result in an increase in the number of drug-resistant bacteria. What name is given to the process by which one bacteria transfers DNA to another
Answer:
The correct answer is: conjugation.
Explanation:
Bacteria are organisms capable of exchanging information with other individuals of their species, and they can do so through many mechanisms.
Conjugation is one of the ways in which bacteria can exchange information.
Conjugation refers to the transfer of DNA thanks to the direct contact between two bacteria and is mediated by plasmids (DNA molecules that are not chromosomal and locate in the bacterium's cytoplasm).
The conjugative plasmid resides in the donor cell. This donor cell produces a sex pilus that attaches to the recipient cell and thus they communicate to transmit the DNA from the donor to the recipient.
This process has clinical relevance since conjugation may increase the number of drug-resistant bacteria.
What happens when wine is contaminated by aerobic bacteria?
Which of the following natural factors is likely to support coastal dune formation?
A. Winds blowing offshore
B. Vegetation around the beach
C. Strong winds blowing in all directions
D. Higher rate of erosion than deposition
Answer:
I think the answer is of letter B
Which of the following is the correct meaning of transpiration?
the absorption of water through the stomata
the mixing of carbon dioxide and water through in the stomata
the evaporation of water through the stomata
the loss of carbon dioxide through the stomata
Suppose earth landmasses someday all move together. Describe the changes that will occur in earths oceans in earths land masses. Use the map and the theory of plate tectonics to explain your ideas.
Which system is responsible for respiration in frogs?
Lungs
Tracheae
Skin
Gills
What is the result when a single cell reproduces by mitosis?
Answer:
two cells with genetic material identical to the parent cell
Explanation:
In what point during the digestive process does your body begin to receive energy from the food?
Small intestine is point during the digestive process does your body begin to receive energy from the food.
What is Small intestine?
Between the stomach and the large intestine, also known as the colon or large bowel, is a specially designed tubular structure known as the small intestine that is responsible for absorbing the nutrients from your meals.
Its length is roughly 20 to 25 feet, and its circumference is comparable to your middle finger. The duodenum, jejunum, and ileum are its three segments.
The duodenum, which is the first segment of the small intestine, starts at the stomach's pylorus and loops around the pancreas before joining the jejunum in the left upper section of the abdominal cavity.
Therefore, Small intestine is point during the digestive process does your body begin to receive energy from the food.
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Talking about all things lunar, which of these forms of madness is related to the moon?
A) Hysterica
B) Lunacy
C) Insanity
D) Biebermania
Answer;
B) Lunacy
Lunacy is the common form related to madness
Explanation;
-Belief in the “lunar lunacy effect,” also sometimes referred to as the Transylvania effect, persisted in Europe through the Middle Ages, when humans were widely reputed to transmogrify into werewolves or vampires during a full moon.
Rocks that are more resistant to erosion are more likely to create
Cliffs
Slopes
Ledges
Rock fragments that have fallen to the bottom and accumulated on a slope at the base of the cliff due to weathering of the main cliff.
What is Rocks?The cliff's bedding of sedimentary rock strata can be observed as horizontal lines that can be followed.
This refers to the topsoil being washed away as a result of environmental variables that cause nutrients to be lost.
For instance, quartz is more durable than micas, which are more durable than feldspars. Due to all the other factors, it is impossible to rank different rock types according to their resistance to weathering.
This is used to describe how topsoil is being lost as a result of environmental variables that cause nutrients to be lost.
Therefore, option A is correct.
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