BIOLOGY HIGH SCHOOL

Is formed when one or more than one atom bonds to another atom.

Answers

Answer 1
Answer:

A molecule is a fundamental concept in chemistry that represents the smallest unit of a chemical compound that retains the properties of that compound. It's formed when two or more atoms come together and bond with each other.

Atoms are the basic building blocks of matter. They consist of a nucleus composed of protons and neutrons, surrounded by a cloud of electrons. Atoms can combine with each other through chemical bonds to form molecules. One of the most common types of chemical bonds is the covalent bond. In a covalent bond, atoms share electrons to achieve a more stable electron configuration.

In ionic bonding, atoms transfer electrons to each other, resulting in the formation of ions with opposite charges. These ions are attracted to each other, creating an ionic bond. The arrangement of atoms within a molecule is crucial to its properties and behavior. The type and arrangement of bonds determine the molecule's shape and how it interacts with other molecules.

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Answer 2
Answer:

Explanation:A special case of polar forces occurs in what is called the hydrogen bond. In many situations, when hydrogen forms a covalent bond with another atom , electrons move toward that atom, and the hydrogen acquires a slight positive charge. The hydrogen, in turn, attracts another atom, thereby forming a kind of bridge between the two.

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A population of snails is experiencing disruptive selection in terms of their shell patterns. Which statement is most likely true about the population? Two different shell patterns are increasing in frequency, while the most common pattern is decreasing. The frequency of the most common shell pattern is becoming higher than all other patterns. The frequency of a new shell pattern is becoming higher than all other patterns. Two different patterns are combining into one very common pattern.

Answers

Answer;

Two different shell patterns are increasing in frequency, while the most common pattern is decreasing(CA).


The statement that is most likely true about the population is that two different shell patterns are increasing in frequency, while most common pattern is decreasing.

Explanation;

Disruptive selection involves changes in population genetics such that the extreme values of a trait are favored over the intermediate values.

Disruptive selection often drives speciation.

It may also occur when environmental changes favor individuals on either end of the phenotypic spectrum.

Describe two conditions necessary for a chemical reaction to occur

Answers

Gas and/or Temp change or color change

________ produce proteins by following coded instructions that come from the nucleus of the cell.A) Actins
B) Flagella
C) Microtubules
D) Ribosomes

Answers

Answer:

The correct answer would be D) Ribosomes.

Ribosomes serve as the site of translation in prokaryotes as well as eukaryotes.

It produce proteins or polypeptide chains with the help of mRNA (messenger ribonucleic acid) and tRNA (transfer ribonucleic acid).

It gets attached or assembled near the start codon of the mRNA. mRNA provides the instruction from the DNA (deoxyribonucleic acid) to the ribosome in the form of codon sequence.

The codon sequence are then decoded with the help of tRNA which then adds specific amino acid to the growing polypeptide chain.

As soon as the ribosome reaches stop codon, it releases the mRNA and polypeptide chain.

The peptide chain then undergoes various post-translation changes to become a mature and functional protein.
Out of the choices given, ribosomes are the ones to produce proteins by following coded instructions that come from the nucleus. The correct answer is D. 

What do holes in volcanic rock illustrate about the conditions in which it was formed??

Answers

Some magma, which is called lava when it reaches the earth’s surface, is shot high into the air from pressure and gasses that accompany many eruptions. The air cools the magma and hardens it while it still contains the gasses that were present in the magma as bubbles. The resulting rock is filled with an infinity of holes which were once gas bubbles in the airborne lava.
Explanation:

The most straightforward thanks to making a case for this can be as a result of some volcanic rocks (pumice specifically) are actually rock foam. like several artificial foams, it's created once an extremely viscous soften fluid at air mass is violently depressurised and cold, avoiding the liquid kind to settle in a very compact condition. The holes, as in any foam or sponge, are empty as a result of on the first liquid kind they were full of gasses. once an activity, those gasses left the rock and therefore the cavities are full of air.
Some magma, which is called lava when it reaches the earth’s surface, is shot high into the air from pressure and gasses that accompany many eruptions. The air cools the magma and hardens it while it still contains the gasses that were present in the magma as bubbles. The resulting rock is filled with an infinity of holes which were once gas bubbles in the airborne lava.

_____ is the waste that is created in the process of making products.(1 point)
pre-consumer waste
post-consumer waste
e-waste
rucksack

Answers

Answer:

Pre-consumer waste is the waste that is created in the process of making products.

Explanation:

Pre-consumer waste is that waste that is produced in the process of production and processing of products, without these have yet reached final consumers. That is, it is the waste generated as a result of production and not the use of a good.

Which phrase best summarizes the theory of evolution by natural selection?A.Over extended periods of time populations change.

B.Survival is done by the strongest.

C.All life comes from life.

D.Species evolve and become better adapted to their environment.

Answers

The correct answer is (d.) species evolve and become better adapted to their environment. It best summarizes the theory of evolution by natural selection. It simply implies that organism changes over a period of time and evolve in a better way because of their adaptation to their environment.
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