a, b, c, d. first to answer gets brainliest

The "special chlorophyll" molecules in the reaction center are what the photosystem will use to absorb all of the sun's energy.

A core complex and a periphery antenna system referred to as the light-harvesting complex I (LHCI) for PSI and the light-harvesting complex II (LHCII) for PSII, respectively, make up each photosystem.

Light-harvesting structures and reaction hubs make up photosystems. To two unique chlorophyll molecules in the reaction center, pigments in the light-harvesting complex transfer light energy.

Sunlight is captured in the chloroplast by pigment chlorophyll molecules arranged into photosystems.

Therefore, the light-harvesting complex, which consists of pigments, and the reaction center make up the photosystem.

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Answer:apical meristem

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Answer:

heterogenous mixture

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Answer:

An ecosystem consists of all the organisms in an area, the community, and the abiotic factors that influence that community. Ecosystem ecologists often focus on flow of energy and recycling of nutrients. Biosphere: The biosphere is planet Earth, viewed as an ecological system.

Answer:

Mitosis is the process in which the nucleus of a eukaryotic cell divides. Cytokinesis is the final stage of cell division, during which the cytoplasm splits into two and two daughter cells form.

Explanation:

hope this helps ya :)

Answer:

the one answered above is true

Answer: In urban planning, brownfield land is any previously developed land that is not currently in use that may be potentially contaminated.

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Answer:

The full term is "Adenosine triphosphate".

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floating freely in the cytoplasm.

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Answer:

I just got points for being useless

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LOL

Answer:

The moon is not officially considered a planet because it has many characteristics of a planet. The Earth-moon system is not double a planet.   The only last possible selection for our moon is that it is a satellite of Earth.

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Answer:

The answer is Epicenter

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Answer:

epicenter is the correct answer

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Plz mark brainliest if helps

Answer:

option D is correct

Explanation:

The statement which is not true about fluids is particles move easily past each other.

Fluids may be defined as any liquid or gas or generally any material that experiences a continuous change in shape when subjected to any object.

The properties of fluids indicate that all fluids can flow depending upon their densities. Some take the shape of their container due to fluidity. Fluids comprise liquid and gases.

Therefore, the statement which is not true about fluids is particles move easily past each other.

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Answer:

Carbon and nitrogen

Explanation:

Answer:its 45 g/cm power of 3

Explanation: density of a block with a mass of 36 g and a volume of 9 cm3? A. 45 g/cm3

Answer:Ocean trenches are driven by tectonics and are most commonly found along the Pacific Ocean in a zone known as the ring of fire. They are usually formed at the boundaries of convergent plates, at a region where a continental plate submerges beneath an oceanic plate.

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Answer:

Among the principal functions of the small intestine, we might mention the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.

Explanation:  

The whole digestive tube is approximately eleven meters long, from the mouth to the anus.

The small or thin intestine is the longest organ of the digestive tube. It can reach up to 7 meters long, up to 3 centimeters in diameter, and it characterizes by being folded. These folds are called villi, they project into the intestine light, and they are more concentrated in the first portion of the intestine, the duodene, decreasing to the final region of the organ.

Among the principal functions of the small intestine, we might mention the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.

The small intestine receives food from the stomach, and through peristaltic movements, it mixes and carries the material to different regions in the organ. The complex polymeric molecules are digested and transformed into simpler substances. The duodene receives secretions from intestinal glands such as bile and pancreatic juices and mixes them with digestive juices of its production. All of these secretions carry huge amounts of enzymes that will degrade food and transform it into soluble substances, such as amino acids. The intestine walls are covered by villi that increase the absorption surface area. Nutrients are absorbed by primary cells and transported to the bloodstream. Calciform cells secrete mucus to protect the epithelium during digestion. Villi also transport water from the blood to the intestinal tract, which helps in food decomposition. Enteroendocrine cells secrete hormones to the blood vessels and capillaries that enter each villus. When nutrients are small enough they go to enter the bloodstream.

Peyer's patches are nodules or cumulus of lymphatic tissue and other accessory cells, located under the mucosa of the gastrointestinal tract, specifically in the lamina propria of the thin intestine, in the jejunum region. These patches represent the mucosa´s immunity system. In the jejunum, these follicles are isolated from each other in the intestine and low concentrated. But in the terminal ileum (The last portion of the thin intestine) they get so close that they might form a plaque.

Answer:

B

Explanation:

The entire process is called gene expression. In translation, messenger RNA (mRNA) is decoded in a ribosome, outside the nucleus, to produce a specific amino acid chain, or polypeptide. The polypeptide later folds into an active protein and performs its functions in the cell.

During translation, the ribosome reads the mRNA and uses the information to assemble a protein.

Translation is the second step of protein synthesis. It takes place in the ribosome, a complex structure made up of proteins and RNA. The ribosome reads the mRNA, a molecule that contains the genetic information for a protein. The mRNA is translated into a protein by a process called codon-anticodon pairing.

Codons are three-base sequences in mRNA that code for specific amino acids. Anticodons are complementary sequences in tRNA molecules that bind to specific codons. When the ribosome encounters a codon in the mRNA, it brings in the corresponding tRNA molecule. The tRNA molecule carries the amino acid that corresponds to the codon.

The amino acid is then added to the growing polypeptide chain. The ribosome continues to move down the mRNA, reading codons and adding amino acids until the entire protein is synthesized.

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Answer:

Diffusion describes the movement of particles from an area of higher to lower concentration. That is what the ink is doing when it spreads throughout the jelly. Osmosis only occurs across a semipermeable membrane.

Answer:

osmosis is movement of particles through a semipermeable membrane from the region of high concentration to region of low concentration while diffusion is the movement of particles  from a region of higher concentration to a region of lower concentration.

Explanation:

here there is no semipermeable membrane hence the correct answer is diffusion.

Answer:

c

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Answer:

A- Provide energy

B- Store energy

C- enable movment

D- starches

E- DNA

Explanation:

Your welcome finish your work now.

Answer:

It turns out that Uranus is so weird because of a massive collision billions of years ago. A new study confirms that this collision with a huge object which was approximately twice the size of Earth.  

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Answer:

A. Species

Explanation:

Species is the most specific level of classification in taxonomy.

One mnemonic that can be used to remember the order of ranks is:

Dear King Philip Came Over For Good Soup

This stands for domain, kingdom, phylum, class, order, family, genus, species.

And, this is in order of the most broad to the most specific rank.

So, A is the correct answer.

Answer:

the Answer is A

Explanation:

because is you look up the classification levels  you will see species is the smallest

Answer: yeah I think you right

Explanation:

Answer:

please tell me if my answer is not helpful

Explanation:

Finish mRNA depletion & library generation in under 6.5 hours. Compatible with Illumina NGS systems. Request a sample. Higher success rates. Easier protocol. Includes cleanup beads. Includes adaptors. Feedback at each step. Lot to lot consistency.

please tell me if my answer is not helpful

Basalt is an example of what extrusive rock.

Extrusive igneous rocks form when magma reaches the Earth's surface a volcano and cools quickly. Most extrusive (volcanic) rocks have small crystals. Examples include basalt, rhyolite, andesite, and obsidian.

Answer:

osmosis and diffusion respectively

Explanation:

osmosis is the first one and diffusion is the second one

Answer:

Hello!

Explanation:

Surface tension in water owes to the fact that water molecules attract one another, as each molecule forms a bond with the ones in its vicinity. ... This inward net force causes the molecules on the surface to contract and to resist being stretched or broken. Hope this helps!

Answer:

55%

Explanation:

Answer:

[tex]\boxed {\boxed {\sf C=5\%}}[/tex]

Explanation:

There is a method to calculating base percentages known as Chargaff's Rule. It states:

[tex]A+T+G+C=100\%[/tex]

We know the DNA has 45% Adenine or A.

Adenine always pairs equally with Thymine. In other words, the percentage of adenine equals the percentage of thymine (45% Thymine or T).

[tex]45\%+45\%+C+G=100\%[/tex]

[tex]90\%+C+G=100\%[/tex]

Subtract 90% from both sides.

[tex]90\%-90\%+C+G=100\%-90\%[/tex]

[tex]C+G=10\%[/tex]

Cytosine(C) and Guanine(G) pair equally and their percentages will be equal. We can divide 10% by 2.

[tex]C+G=10\% /2[/tex]

[tex]C/G=5\%[/tex]

The percentage of Cytosine or C is 5 percent.