There are two types of cells, prokaryotic and eukaryotic. The first prokaryotic cell fossil records date back to about 3.5 billion years ago, while the first cells resembling eukaryotes appear about two billion years later. Although the types of cell share some similarities, compartmentalization is not a shared characteristic.


1. Describe the endosymbiotic theory.
2. Explain the relationship between the functions of endosymbiotic organelles and their free-living ancestral counterparts. Provide evidence that supports the endosymbiotic theory.

Answer:

consumers

Explanation:

consumers-- humans cannot make their own food, they rely on producers

Answer:

A or B not sure

Explanation:

Answer:

D. Mitochondrion

Explanation:

Mitochondria are surrounded by a double-membrane system, consisting of inner and outer mitochondrial membranes separated by an intermembrane space. The inner membrane forms numerous folds (cristae), which extend into the interior (or matrix) of the organelle.

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Metamorphosis is a process that occurs when one form of an organism changes into another form. A well-known example of metamorphosis is the transformation of a caterpillar into a butterfly.

This process begins when the caterpillar, a larval form, spins a cocoon to protect itself from the environment and begins to break down its body into a pupal form. As it develops in this pupal form, the caterpillar is transformed into a butterfly with wings and legs that allow it to fly. This process of metamorphosis is a fundamental stage in the life cycle of the insect and allows it to adapt to the environment.

Another example of metamorphosis can be found in amphibians, such as frogs and salamanders. These animals go through a process called “metamorphosis” which allows them to transition from an aquatic larval form to a terrestrial adult form. This process involves a number of physical changes, such as the development of lungs, a more defined head and body, and the growth of limbs.

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Answer:

100 energy i guesssss!!!!!!!

Answer:

Disequilibrium

Explanation:

Homeostasis is a relatively stable equilibrium

While Disequilibrium is unsteady or unstable

Answer:

disequilibrium

Disequilibrium is the answer because homeostasis is defined as keeping the internal environment fairly constant by constant adjusting to the physical and chemical changes of the body fluid . Homeostasis is basically balancing the body so disequilibrium will be the best answer for the opposite of homeostasis

Answer:

the answer to your question is number 2

Answer:

-Crest

-Trough

Explanation:

-Crest : A crest point on a wave with the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum.

-Trough:  A trough is the opposite of a crest, so the minimum or lowest point in a cycle.

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Answer:

crest and trough

Explanation:

Answer:

A greenhouse gas (sometimes abbreviated GHG) is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect[1] on planets. Without greenhouse gases, the average temperature of Earth's surface would be about −18 °C (0 °F),[2] rather than the present average of 15 °C (59 °F).[3][4][5] The atmospheres of Venus, Mars and Titan also contain greenhouse gases.

Explanation:

The term for propane and butane gases that can be liquefied under high pressure during the extraction of natural gas is liquefied petroleum gas (LPG).

Liquefied petroleum gas (LPG) refers to a mixture of propane and butane gases that can be compressed into a liquid state under high pressure. LPG is obtained as a byproduct during the extraction and processing of natural gas or crude oil.

The high-pressure compression of propane and butane gases allows them to be stored and transported in a liquid form, making them more convenient and efficient for various applications. LPG has a higher energy density compared to its gaseous form, making it a valuable source of fuel for heating, cooking, and industrial purposes. It is commonly used in residential, commercial, and industrial settings as an alternative to traditional fuels like coal or wood.

LPG is stored in specially designed tanks or cylinders and can be easily vaporized back into its gaseous form for use. The ability to liquefy propane and butane gases under high pressure enhances their storage, transportation, and versatility, making LPG a widely utilized and accessible energy source in many parts of the world.

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Answer:

The answer is A.

Explanation:

Grasshoppers are a food of mice. If the mice went extinct, then there will be a population boom of grasshoppers. At the same time, the number of plants will decrease because of this. Also, the snake will not be able to survive because of the lack of mice (other species can survive to this change, though).

(I hope this helps! I learned this a long time ago, so yeah!)

Answer:

to clasify is to create a group that pertains to a group with the same characteristics

Explanation:

The styloid process of the temporal bone is a thin, pointed bone protrusion located at the base of the skull just in front of the ear.  

The primary function of a styloid process is to provide attachment points for muscles and ligaments of the neck and face, more specifically, it serves as the attachment point for the stylohyoid ligament, which connects the hyoid bone to the styloid process, and for the stylomandibular ligament, which connects the mandible to the styloid process. It also provides attachment points for the styloglossus and stylopharyngeus muscles, which help to move the tongue and pharynx, respectively. Also, it helps to support the structures of the throat and neck, including the pharynx, larynx, and esophagus.

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The section of a chromosome that contains instructions for building proteins is called c) DNA.

DNA is the blueprint for producing proteins in cells. A gene is a segment of DNA that contains instructions for making a particular protein or RNA molecule. During transcription, the DNA sequence is converted into a complementary RNA sequence, which is then used as a template for building the protein. The genetic code determines which amino acids will be used to make the protein, and this code is carried by the sequence of nucleotides in the mRNA. The information contained in the DNA sequence is essential for the survival and function of the cell, and changes to the sequence can cause genetic disorders or diseases. Therefore, understanding the structure and function of DNA is crucial for understanding basic biological processes and developing new treatments for genetic diseases.

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The energy source is the concentration difference of hydrogen ions across the membrane.

The photochemical and electron transport reactions of oxygenic photosynthesis occur at the thylakoid membrane. The lipid composition of the thylakoid membrane is highly conserved among oxygenic photosynthetic organisms, with two galactolipids, one sulfolipid, and one phospholipid.

The primary functions of thylakoids are to trap light energy and convert it into chemical energy forms such as ATP and NADPH. Water is oxidized and oxygen is released during this process. Inside chloroplasts and cyanobacteria, thylakoids are membrane-bound compartments. They are the site of photosynthesis's light-dependent reactions. Both stages of photosynthesis involve the chloroplast. The light reactions occur in the thylakoid.

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watershed

A watershed includes the network of streams that drains that surface land area, and the groundwater and aquifers located underground that contribute water to those streams. Watersheds are separated from adjacent ones by a continuous ridgeline that forms the watershed's boundary.  

Can i get a brainest point plsssssssss

Answer:

4.they are made up of DNA wrapped around proteins

The light-dependent processes and the light-independent activities are the two main components of photosynthesis. ATP and NADPH are created when light energy is transformed into chemical energy.

The primary function of photosynthetic processes is to convert solar energy into chemical energy that may be conserved for later use. The biological systems on the planet largely receive energy from this method. By the norms of human engineering, it is not especially effective, but it gets the job done.

Photosynthesis takes place in chloroplasts, the structures in plants that contain the chlorophyll. The thylakoid membrane, a third this are that is included inside the double membrane that encircles chloroplasts, is present.

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The string like structures in the heart which encore both the tricuspid and mitral valves and prevent them from inverting is called as Chordae tendineae.

Chordae tendineae or tendinous cords are the string like structures which has fibrous connections in the heart, and it connects papillary muscles to the tricuspid and bicuspid valves. It also maintains the position of Atrioventricular valves in the heart.

These strings connect the valves such that when it opens up or closes, the normal condition of the valve is acquired failing which the malfunctions in the heart can occur. It ensures proper enclosure of the valves during systole. It also enables flow of blood in a single direction. The chordae tendineae prevent them from swinging back into the atrium cavity.

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Answer:

upright

Explanation:

In order to stay upright the bicycle has to experience friction.

Answer:

B. When limiting factors and interactions of organisms create balance within a community.

Supine arms in straps lower and lift is done in the sagittal plane of motion. This exercise involves the arms moving in the frontal plane, from a starting point of being at the sides of the body, to a position of being elevated above the head. During the exercise, the arms should remain in a straight line throughout the motion, and the elbows should remain slightly bent. The arms should be lowered under control, and the shoulder muscles should remain relaxed. As the arms are raised, the shoulder muscles should be engaged to lift the arms up. This exercise is beneficial for shoulder strength, and can help to improve posture and range of motion in the shoulder.

The exercise 'supine arms in straps lower and lift' is conducted in the sagittal plane of motion, which involves movement back and forth. Doing this exercise in a supine position with straps makes it challenging and effective.

The exercise 'supine arms in straps lower and lift,' is performed in the sagittal plane of motion. In anatomy, the sagittal plane is an imaginary plane that divides the body into left and right. When you are in a content-loaded supine arms position, with arms in straps, and start to lower and lift your arms, you are basically moving your arms forward and backward, which corresponds to movement in the sagittal plane.

Here, the straps lower your arms against resistance, making the exercise challenging and effective.

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Answer:

Explanation:

For the 1st one with the Cheetah: It would be a long tail because it helps them balance when they turn. Sinch Cheetahs move extremely quickly they need a balance to ensure they don't topple over when they turn, this tail provides this balance.

For the 2nd one with the bear: Thick coats on a bare will help provide warmth whenever they go to hybernate. Thin fur would leave room for freezing and wouldn't be able to help them maintain the proper body temperature.

The 3rd one with the clownfish: A round tail provides a bigger boost when swimming since it is able to push more water. A forked tail would create a gap when they swim so they would have to expend more energy than with a round tail.

The 4th one with the Finch: Since grubs live underground a thinner beak would be able to dig them out and stab them faster. This allows them to reach farther and get more food.

Answer:

D AZ FCSDF SDF F

Explanation:

just seeing how this works don't mind me

If you inhale a foreign object that completely blocks your right bronchus, you are likely to experience a range of serious medical consequences. The bronchi are the tubes that transport air from the trachea into the lungs.

The right bronchus is one of two primary bronchi and is located closer to the body's centerline than the left bronchus. Here are some of the effects you may experience:The obstruction of your right bronchus, which is one of two tubes that carry air into the lungs, will cause you to feel breathless, and your breathing will be labored or strained. You may be unable to inhale deeply or exhale completely, resulting in a feeling of suffocation, which could lead to panic.

Due to the obstruction, there may be a drop in oxygen saturation levels in your blood due to the lack of air supply to the lungs. Oxygen is carried from the lungs to the heart, which pumps it to the rest of the body. The lack of oxygenated blood can cause a condition known as hypoxia, which can lead to unconsciousness and even death.

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Answer:

Explanation:

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

Answer:

Without energy we or an animal can't do anything we would just be lazy.

Explanation:

The answer is active site

Answer:

D. A segment of DNA molecule

Explanation:

Gene is a segment of a DNA molecule that holds instruction needed for the synthesis of useful products (protein). Ideally, DNA is the storage material of genetic information in a cell. The DNA harbors the GENE, which itself is being expressed in order to use the information contained in it to produce useful products responsible for the phenotype of an organism.

A gene contains sequences made up of nucleotide bases that determines the sequence of amino acids to be produced, and ultimately the type of protein.

Answer:

A segment of DNA molecule

Explanation:

We perceive yellow when our L cones are stimulated at around 95% of their maximum and M cones at roughly 55% of their maximum (this ratio corresponds to a wavelength of about 580 nanometers).

Rods and cones are the two different categories of photoreceptors found in the human retina. Cones are in charge of vision in brighter environments, whereas rods are in charge of vision in low light. Mesopic refers to the range of light where both can function.

Rods:

Cones:

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