Nearsightedness and farsightedness are caused by what ?
EXTRA POINTS IF YOU ANSWER

Answer:

All life we know of on Earth is mostly based on molecules containing the element carbon.

True.

Explanation:

Answer:

although no longer accurate today, the answer is most likely a.) coal.

Explanation:

hope this helps!

Answer:

Reservoir

Explanation:

Answer:

reservoir

Explanation:

Answer:

A sequence of three consecutive nucleotide base subunits in an mRNA molecule that together represent the genetic code for a particular amino acid.

Answer: because mammals have more complex biological structures; limb regeneration would require sophisticated controls to ensure that limbs and organs don’t grow out of control.

Explanation:

Arthritis or rheumatoid arthritis is a prevalent condition among the elderly.

The knee is one of the largest and most intricate joints in the body. The knee is the joint that links the femur (thigh bone) to the shin bone (tibia). The smaller bone that runs alongside the tibia (fibula) and the kneecap are the extra bones that make up the knee joint (patella).

Osteoarthritis is the most common kind of arthritis that affects the knee. Osteoarthritis is a degenerative disease in which the cartilage in the joint gradually deteriorates. It primarily affects persons in their forties and fifties. Osteoarthritis may be caused by excess stress on the joint such as repeated injury or being overweight.

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Answer:

This question lacks options, the options are:

a. AGC TCG

b. AGC TTA TAG

c. TTA TCG

d. AGC TTT CG

The answer is D.

Explanation:

A frameshift mutation is a type of mutation in which the order at which the sequence is read becomes altered. In other words, a mutation is said to be "FRAME SHIFT" if it alters the order of reading the sequence. Frameshift mutation is caused by either insertion or deletion mutation i.e indel

According to this question, a DNA segment has base order: AGC TTA TCG. Deletion mutation will cause one or more nucleotide to be removed, hence, affecting the order of reading the sequence (reading frame). For example, in AGC TTT CG, nucleotide base A has been removed via deletion mutation, causing the reading sequence to shift.

The copy that will exhibit a frameshift mutation through deletion is D. AGC TTT CG.

It should be noted that a frameshift mutation refers to a form of mutation where the order at which the sequence is read becomes altered. Frameshift mutation is caused by either insertion or deletion mutation.

From the information given, a DNA segment has a base order AGC TTA TCG. It should be realized that the deletion mutation will result in one or more nucleotides being removed, thereby, affecting the order of reading the sequence. Therefore, through deletion, this will result in AGC TTT CG.

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All - growth, exchange of gases, excretion, reproduction, and death (option d).

All living organisms undergo various life processes to maintain their existence. Let's analyze each option to determine which life processes are carried out by an organism's cells:

A. Only growth and exchange of gases: While cells are involved in growth and exchange of gases, they also participate in other life processes. This option is incomplete.

B. Only growth, exchange of gases, and reproduction: Cells play a crucial role in reproduction as they are responsible for the production of gametes and the process of cell division. However, there are additional life processes that cells also undertake.

C. Only growth, exchange of gases, excretion, and reproduction: This option includes excretion in addition to growth, exchange of gases, and reproduction. Cells participate in excretion by eliminating waste materials. However, there is one more life process that cells experience.

D. All - growth, exchange of gases, excretion, reproduction, and death: This option encompasses all the mentioned life processes. Cells are involved in growth as they undergo cell division and increase in number. They exchange gases through processes like respiration. Cells excrete waste products. They participate in reproduction through the formation of gametes and cell division. Lastly, cells also experience death as they have a limited lifespan.

Therefore, the correct answer is D. All - growth, exchange of gases, excretion, reproduction, and death.

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Answer:

A,C,D

Explanation:

I belive these are the right answers, you would not redo an experiment just because your hypothesis was wrong that would be silly.

This is a complicated question that's a little easier if you break it down!

Island One:

- Lizard tails are all green or black tipped.

- This island has many of each type.

Sailors Moved:

- two green-tailed lizards

- three black-tipped lizards

On Island Two, we know that the black-tipped lizards are more likely to survive since the question tells us that "the black-tipped lizards could use the black tip of their tail to distract predators while they made a quick escape and this particular island had many predators".

The green tailed lizards do not have this advantage, and the predators are eating more of them because of this (especially if there are a lot of predators!).

We also know that the lizards on the island were able to reproduce and form a large popuation- not all of them were eaten by predators.

Based on this information we can predict:

There are going to be a lot more black tipped lizards (or they may all be black tipped lizards) because they have an advantage in surviving longer.

Answer:

I beileve the answer is GGT

Explanation:

This is because the other letters are in the strand.

Answer: A

brainliest plss

Explanation:

Answer:

the first one movement toward a climax community

You feel a mosquito land on your arm. This stimulus is carried to the central nervous system (CNS) by the somatic sensory division.

'What is somatic sensory division?'

The somatic nervous system is a part of the peripheral nervous system that is involved in the voluntary control of skeletal muscle movement. It is in charge of all the bodily processes that we are cognizant of and have control over, including how our arms, legs, and other body parts move. The 43 distinct nerve segments that make up the peripheral nervous system—12 pairs of cranial and 31 pairs of spinal nerves—contribute significantly to our ability to carry out daily tasks. Both efferent (motor) and afferent (sensory) nerves make up the somatic nervous system.

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The measurement of the osmotic pressure gradient between two fluid compartments is determined by the difference between their respective solute concentrations.

What is osmotic pressure?

Osmotic pressure is a term used to describe the amount of pressure that must be applied to a solution to avoid water from moving through a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.

The pressure exerted by a solution on a semipermeable membrane as a result of the difference in solute concentrations between the two sides of the membrane is referred to as osmotic pressure.

What is a concentration gradient?

A concentration gradient is a measure of the difference in concentration of a solute between two separate regions. The rate at which the concentration of a solute changes as a result of the solute's movement is determined by the concentration gradient. The greater the difference in solute concentration between the two regions, the greater the concentration gradient.

What is a solute?

A solute is a substance that dissolves in a solvent, creating a solution. A solution is a homogeneous mixture of two or more components. In a solution, the solute is the component that is present in the smallest amount. The solvent is the component that is present in the largest amount.

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In cells, ATP is usually the immediate source of energy for an endergonic reaction.

ATP is an energy carrier and provides energy for cellular activities.

When a molecule of ATP (Adenosine 5′-triphosphate) breaks down it provides energy for an endergonic reaction.

A molecule of ATP is made up of hydrogen, oxygen, and phosphorous.

It is found in all organisms and is an important co-enzyme.

It binds with other enzymes to transfer its energy and does so by releasing a group of phosphate.

These molecules are also known as the currency of the cells as they contain energy packs of phosphate.

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The eosinophil counts were high in both patients who had consumed game meat contaminated with Trichinella because eosinophils are a type of white blood cell that play a crucial role in the immune response against parasitic infections.

When Trichinella larvae enter the body through contaminated meat, they migrate to various tissues, particularly muscles, where they encyst. The immune system detects this invasion and increases the production of eosinophils to combat the infection.

High eosinophil counts are a common sign of parasitic infections like trichinellosis, as they aid in the elimination of the parasites and help control inflammation caused by their presence. In summary, elevated eosinophil levels in both patients indicate an immune response to the Trichinella infection acquired from consuming contaminated game meat.

The eosinophils release granules that contain enzymes and toxic proteins, which help to destroy the parasite. The higher the parasite load, the greater the immune response, and the higher the eosinophil count. Therefore, the high eosinophil counts in both patients indicate a strong immune response against the Trichinella infection. Treatment typically involves anti-parasitic medication and supportive care to manage symptoms.

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Answer:

the answer is 'one half.'

Explanation:

The ‘head’ contains the sperm cell’s nucleus. The nucleus carries  

one half of an organism’s genetic material.

Glucose is broken down into pyruvate through a process called glycolysis. Glycolysis is the first stage of cellular respiration and it takes place in the cytoplasm of the cell.

During glycolysis, glucose is broken down into two molecules of pyruvate, and a small amount of ATP (adenosine triphosphate) and NADH (nicotinamide adenine dinucleotide) are produced. Pyruvate can then enter the mitochondria and undergo further oxidative reactions to produce more ATP through the process of cellular respiration, or it can be used for other metabolic processes in the body.

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Spatial summation is the process by which several presynaptic neurons simultaneously release neurotransmitter at several sites along the dendrites of a single postsynaptic neuron.

The process of spatial summation Spatial summation is a mechanism by which individual EPSPs from separate synapses summate at a particular point on the postsynaptic membrane to elicit action potentials. It's due to the convergence of many presynaptic neurons onto a single postsynaptic neuron.

Each individual synapse generates a postsynaptic potential, either an EPSP (Excitatory Postsynaptic Potential) or an IPSP (Inhibitory Postsynaptic Potential), which produces a local depolarization or hyperpolarization in the membrane potential of the postsynaptic neuron. When summated, a complete or net EPSP or IPSP will be produced, depending on the frequency and timing of the individual presynaptic potentials and whether they are excitatory or inhibitory.

In spatial summation, many presynaptic neurons stimulate a single postsynaptic neuron at the same time, resulting in an increase in the likelihood of an action potential occurring in the postsynaptic neuron. The synaptic potentials of different synapses add up when they arrive at the same location on the postsynaptic cell. If the summation exceeds the threshold for an action potential, it will fire in the postsynaptic neuron.

Overall, spatial summation only involves the excitatory postsynaptic potential and occurs because of the convergence of many presynaptic neurons onto a single postsynaptic cell.

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Answer:

A. Deletion mutation

Explanation:

Deletion mutation involve the removal of 1 or more base pairs.

Point mutation involve change in a DNA nucleotide sequence.

Insertion mutation involve the addition of 1 or more base pairs.

Here G in the 4th codon is removed so it is deletion mutation.

Answer:

cell

tissue

organ

system

human organism

Explanation:

unicellular organisms only have one cell since two or more cells form a tissue their level of organization is restricted to cell

cell

two or more cells form a tissue

two or more tissue forms an organ

two or more organs form a system which must work in coordination for efficiency

two or more systems make up a human organism

Answer:

light intensity

temperature

Explanation:

light is required for photosynthesis, and plant species have evolved for optimum growth in the light available in their climate or habitat

animals and plants have evolved to grow healthily at their optimum temperatures

If the year dates of the tree growth rings can be identified, the scientific discipline of dendrochronology can indeed be utilised to establish when a tree was cut down or died naturally. Seasonal climate shifts affect a tree's annual growth, which varies throughout the year.

The study known as dendrochronology, sometimes known as tree-ring dating, uses the annual growth rings that trees create to determine dates on a calendar (Nash 2000). This precise and sophisticated dating technique has been employed by archaeologists for nearly a century.

According to this theory, there must have been physical and biological mechanisms in place in the past that connect present environmental processes with the patterns of tree development that exist today. James Hutton first said this in 1785, and it is now often understood to mean "the current is the keys to the past."

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Citrate can move from the mitochondria into the cytosol, where citrate lyase cleaves it into oxaloacetate and acetyl-CoA, the ini- tiator of fatty acid synthesis.

Citrate is produced within the Krebs cycle from oxaloacetate and acetyl-CoA by citrate synthase (CS). it can be exported from the mitochondria through citrate carrier (CIC). Cytosolic citrate is broken down by ACLY to oxaloacetate and acetyl-CoA. Acetyl-CoA may be used as a substrate for fatty acid synthesis.

as an example, citrate, a TCA cycle intermediate, can pass across the mitochondrial membrane to the cytosol, in which it's far cleaved into OAA and acetyl CoA to aid a selection of biosynthetic methods, which include the synthesis of fatty acid and sterols.

Krebs cycle intermediates (KCIs) are said to feature as strength substrates in mitochondria and to exert antioxidants effects at the brain. the existing examine was designed to perceive which KCIs are powerful neuroprotective compounds in opposition to oxidative pressure in neuronal cells.

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The correct answer is A. To get energy.

They eat other organisms because they need food, and food is considered energy because it allows the fish to function more efficiently.

Because of the fluctuating rainfall and generally warm temperatures, fragile goods have a tendency to be destroyed.

Fluctuating:

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Answer:

n Hawaii you can find black sand beaches, because the sand comes from eroded basalt - lava from the volcanoes. ... That sand is made of olivine, an igneous rock that is rare on the surface of the earth because it breaks down up here, and is stable inside the earth (where the pressure is higher and the temperature hotter.)

Explanation: