Which statement best describes the purpose of Earth's spheres?

They work together as open systems to cycle matter through ecosystems.
They work independently as closed systems to cycle matter through ecosystems.
They work together as open systems to move matter to living and nonliving parts of Earth.
They work independently as closed systems to move nutrients to living and nonliving parts of Earth.

Answer:

Shorter life spans

Explanation:

Everytime a cell dies, it needs to be replaced. Mitosis mainly occurs during cell growth/development, regeneration, or replacement.

Answer:9:3:3:1

Explanation: Just took the test!

Answer:

9:3:3:1

Explanation:

Answer: Progressives introduced reforms to address the ills of industrial capitalism. Their efforts led to anti-trust law suits (e.g., Northern

Explanation:

Answer:

The correct answer would be "Fish will have the greatest genetic diversity because they receive genetic material from a male and female source".

Genetic diversity is defined as the variation in the total amount of genetic information among the individual of the population.

In sexually reproducing population, genetic diversity is present in high amount as compared to asexually reproducing population.

It is because of two reasons:

The genetic make of an individual is determined by 2 parents (father and mother).

The event of crossing over takes place during formation of gametes.

Together, they lead to the development of new combinations of alleles in an offspring which is different from both the parents.

Thus, fish would have the highest genetic diversity in their population.

Explanation:

Answer:

(2) the placenta allows nutrients to diffuse from the mother to the embryo.

Explanation:

The placenta is a shared organ between the mother and the embryo. It diffuses the necessary nutrients from the mother to the future baby and the residues from this one to the mother, so that she can expel them. The placenta separates the mothers and the embryo blood, but it allows the diffusion of said nutrients and wastes through especial parts of the placenta with thin walls.

Answer:

venus

Explanation:

the time taken to rotate is longer than time taken to revolve

The electron transport chain (ETC) is the final step of cellular respiration and takes place in the mitochondrion.

Answer:

yes

Explanation:

if you would search a picture and how and what types of stuff you would need,that would help you

Answer:

A-Dendrites

B-cell body

C-nucleus

D- myelin sheath

E-node of ranvier

F-synapse

Explanation:

This image depicts a nerves anatomy

Answer:

Amylase is not the enzyme found in saliva it is ptyalin

Explanation:

the digestion of starch starts in the mouth.

the ptyalin hydrolysis the starch.

Answer:

no he got banned

Ex

planation:

Answer:

The products of photosynthesis serve as the reactants in cellular respiration to provide chemical energy.

Explanation:

Answer:

Nutrients such as glucose and amino acids as well as oxygen are pushed out from the blood into the tissue fluid. The rest of the fluid is collected by the lymphatic system. The lymph is similar to the tissue fluid. This is the relationship between tissue fluid and lymph.

Explanation:

Answer:

Impact of double-stranded mRNA before translation would inhibit the binding of tRNA to mRNA ti synthesize protein.

Explanation:

The mRNA is a molecule that, with the exception of viruses with double-stranded RNA, has only one chain. It is in charge of conducting to the ribosomes the sequence of nucleotides that makes possible the translation and the synthesis of proteins.

Once the ribosome translates the information of each codon of the mRNA, a transfer RNA (tRNA) molecule, with a complementary anticodon, provides the amino acid corresponding to the translated codon.

If the mRNA were double-stranded, the translation process would be altered, since binding of the tRNA with the amino acid it carries and mRNA codon would not be possible, as well as the protein synthesis.

Answer:Each muscle in the body is made up of cells called muscle fibers. Muscle fibers are long, thin cells that can do something that other cells cannot do—they are able to get shorter.

Explanation:

IM not sure if this would help but their you go.

Muscle fibers are the cells that make up each muscle in the body. Muscle fibers are long, thin cells with the unique ability to shrink. Most cells cannot do this.

Cross-striations are the most noticeable histological characteristic of muscle fibres, which are massive multinucleated cells. Many myofibrils with tiny cylinders made of bundle of myofilaments can be found in the cytoplasm.

Myofilaments are made up of both thick filaments primarily made of myosin and thin filaments primarily made of actin. Due to their regular overlap, which is kept in register from across diameter of the muscle fiber, the thick and thin filaments create the cross-striations.

Thus, the cells that make up each muscle in the body are known as muscle fibres. Long, thin cells called muscle fibres have the unusual ability to contract and expand. Most cells are unable to achieve this.

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Answer:

Explanation:

plants capture and store the energy they derive from light during photosynthesis in ATP molecules. ... When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP).

The green plants store the food that is produced during this process as the six carbon sugar called glucose.

The term photosynthesis refers to the process by which green plants produce food by the use of carbon dioxide and water.

In this process, the green plants store the food that is produced during this process as the six carbon sugar called glucose.

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Answer:

hih

Explanation:

what that means what ur talking bout

Answer:

What I'm confused

Answer:

C

Explanation:

I dont have a explanation becausr its right

Answer:

I would say D. A Thunderstorm

Explanation:

During a thunderstorm there are pretty high winds that can knock power lines down, lots and lots of rain, lightning that can easily strike down a power line, etc.

A simple rainfall could not hold enough power to block a radar signal

Sunshine does not effect anything see as it includes clear weather.

A tornado would also be another thing to consider though.

Hope this helped!

Answer:

D

Explanation:

i took the test hopefully its right

Answer:

When the chemical energy in food is transferred to cells in the body, the energy can be transformed into energy used by the body to do many things like run, ride a bike, do the dishes, pump the heart, and keep the body warm.

The chemical energy, which is needed by the organisms comes from the food. Food comprises organic molecules, which captivates energy in their chemical bonds.  

• The organisms generally use two kinds of molecules for chemical energy, ATP and glucose.  

• Both the molecules are utilized as fuels all through the living world.  

• Energy is the tendency to perform an activity. It is required by all the living species and every living cell to perform the processes of life.  

• Energy in the form of chemical energy is utilized to dissociate and form the molecules, and to transport several molecules through the cell membranes.  

• The organisms primarily use ATP and glucose for energy.  

Thus, the form of energy required by the living species to perform the essential activities of life is obtained from food.

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Answer:

sexual reproduction between two individuals from different continents

Answer:

A

Explanation:

I edited. I first put D if that helpes

Answer:

D

Explanation:

Answer:

The correxr answer is obsolete

Answer:

the answer is obsolete

Explanation:

obsolute-no longer produced or used