4. Why does sexual reproduction result in offspring with genetic variation? Use the examples that you studied to support your answer.

Answer:

two strands of DNA that are identical to each other

Explanation:

Replication is defined as the process in which two identical copies of DNA is formed from parent DNA strand. The end result of DNA replication is two strands of DNA that are identical to each other which are called  chromatids. The process of DNA replication is known as semi-conservative as the end result is consist of one new and one old chain of nucleotides.

Hence, the correct answer is "two strands of DNA that are identical to each other".

Answer:

Energy is lost at each trophic level.

Explanation:

hope this helps have a good rest of your day :) ❤

Energy is lost at each trophic level.

What is food chain ?

Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.

What is tropic level?

Trophic level is defined as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans.

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Answer:

right good job

Answer:

right

Explanation:

best feeling ever

Answer:

Mark’s dentist gives him a shot before performing a root canal. The dentist says the shot is anesthesia and that Mark won't feel any pain. Mark feels his gums going numb, while the rest of his body is working fine. What has the anesthesia actually done?

The anesthesia has blocked  interneurons from carrying signals to the brain .

Answer:

Photosynthesis converts Light and chemical energy in to food-energy molecule sugar and gives off Oxygen

Explanation:

6CO2 + 6H2O → C6H12O6 + 6O2

Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.

Carbon dioxide, water and light are all needed for photosynthesis to take place.

Photosynthesis happens in the leaves of a plant.

Answer:

The answer is D

Explanation:

I dont really care about the brainliest, I just wanted to help

Answer:

B i believe

Explanation:

Answer:

Mitosis : C, E and D

Binary fission : A and B

Answer:

Explanation:

Answer:

answer (UNDER)

Explanation:

Chemical bonds include covalent, polar covalent, and ionic bonds. Atoms with relatively similar electronegativities share electrons between them and are connected by covalent bonds. Atoms with large differences in electronegativity transfer electrons to form ions. The ions then are attracted to each other.

Answer:

Hormones are produced by glands and sent into the bloodstream to the various tissues in the body. They send signals to those tissues to tell them what they are supposed to do. When the glands do not produce the right amount of hormones, diseases develop that can affect many aspects of life.

Answer:

hope it helps

Explanation:

Hormones are produced by glands and sent into the bloodstream to the various tissues in the body. They send signals to those tissues to tell them what they are supposed to do. When the glands do not produce the right amount of hormones, diseases develop that can affect many aspects of life.

Answer:

50%

Explanation:

Answer:

a I do believe

Explanation:

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Energy can neither be created nor destroyed.

Energy can only be changed from one form to another.

Answer:

Freckles are small brown spots on your skin, often in areas that get sun exposure. In most cases, freckles are harmless. They form as a result of overproduction of melanin, which is responsible for skin and hair color (pigmentation). Overall, freckles come from ultraviolet (UV) radiation stimulation

Explanation:

Answer:

brainliest please

Explanation:

sunlight helps us tan and melanin helps us tan and freckles come from sun exposure and it's basically splotches of melanin

Answer:Each cell carries out basic life processes that allow the body to survive. Many human cells are specialized in form and function, as shown in Figure below. Each type of cell in the figure plays a specific role. For example, nerve cells have long projections that help them carry electrical messages to other cells.

Explanation:

Answer:

I agree with the other person

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Explanation:

Answer:

tRNA molecules attach to codons.

''A. the earth's crust is thin and could be compared to an eggshell'' is the correct answer.

The egg is considered a tiny model of the Earth. The thin shell of the egg represents the Earth's crust which is divided into plates. Both earth and egg have a thin and brittle shells. The crust of the earth is broken into various pieces like the cracked shell of a boiled egg. The mantle of the earth is like the egg white part whereas the core of the earth is present in the center like the egg yolk. The earth's crust is broken into pieces that geologists called it plates. The inside of the planet earth is layered like an egg. Scientists considered the surface of the Earth to be cracked like a big eggshell. They call these pieces tectonic plates that cover the Earth. The plates float slowly on the surface and sometimes crash with each other, and move away from each other.

So we can conclude that option A is the right answer about the earth's crust.

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Answer:

Iron, Magnesium, and Nitrogen

Answer:

D- Kingdom

none of the rest makes sense

Answer:

206 bones lol cool right

Answer:

Neurons are in charge of receiving stimuli from the environment, transforming them into nervous excitations and transmitting them to the nerve centers, where they organize themselves to give a response.The cycle of depolarization and hyperpolarization of the membrane and return to the resting membrane potential is called the action potential, an all-or-nothing reaction that can occur at rates of up to 1,000 pulses / second. Membrane depolarization that occurs as voltage gate Na + channels open at one point on an axon passively spreads a short distance and triggers the opening of adjacent channels, resulting in the generation of another action potential. In this way the depolarization wave, or nerve impulse, is conducted along the axon.

Explanation:

Neurons are highly specialized cells whose central function consists in the generation and transmission of signals, in order to communicate with the other neurons of the nervous system and with the outside of the organism. They are made up of three parts: the cell body, the dendrites, and the axon. Dendrites are extensions of the cell body with short, tubular branches, through which each neuron receives signals from other neurons. These signals are added or averaged, and in the event that the total intensity of the received stimulus is greater than a certain threshold, the neuron will generate and emit an electrical response signal. This signal will be sent through the axon, which will transmit the information to other neurons through chemical exchange. The axon divides near the end into thin branches that contact other neurons. The point of contact is called the synapse. At the synapse, there is a gap between the two cells called the synaptic cleft. The synapse is produced by the release of chemicals from the presynaptic neuron that excites the postsynaptic, transmitting the informational code. The arrival of an impulse at the end of a nerve fiber causes a chemical compound, a transmitter substance, to be released, which excites the neighboring neuron. The same neuron may have inhibitory and excitatory connections with different neurons, for which it will need to produce different chemicals that act as transmitters. A neuron receives and integrates multiple stimulations through the synapses, those received by the dendrites are added to those received in the soma so that the electrical potential of the cell membrane ends up exceeding the threshold and originates a nerve impulse in the area of ​​the axonal cone. Nerve impulses are electrical signals generated by the spike trigger sites (axon cones) of a neuron as a result of membrane depolarization, which are conducted along the axon to its termination. The transmission of impulses from the endings of a neuron to another neuron, a muscle cell or a gland occurs at the level of the synapses.

Answer:

88

Explanation:

Answer:

Answer is prokaryote.

Explanation:

I hope it's helpful!

Answer:

Archaea

Explanation:

The kingdom which contains multicellular eukaryotic organisms commonly known as animals Archaea The kingdom of prokaryotic unicellular organisms known for living in environments

Answer:

Due to global warming temperatures at the poles are rising and ice is melting is described below in complete explanation.

Explanation:

Global warming is generating Arctic ice to melt at a very fast pace, ice shows sunlight, while water consumes it. Polar bears might be extinct by 2200 because of melting ice, climate modification, research reflects. Fresh research recommends the Arctic animals are in high danger of being killed into extinction by the finish of the century.

Answer:

C

(3·x^2 - 2·x)·(2·x^2 + 3·x - 1)

= 3·x^2·2·x^2 + 3·x^2·3·x - 3·x^2·1 - 2·x·2·x^2 - 2·x·3·x + 2·x·1

= 6·x^4 + 9·x^3 - 3·x^2 - 4·x^3 - 6·x^2 + 2·x

= 6·x^4 + 5·x^3 - 9·x^2 + 2·x

Explanation:

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Answer:

A) reforestation

Explanation:

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