BIOLOGY HIGH SCHOOL

The microorganisms present on day 5 were(1) newly added from the sterile culture medium
(2) offspring of antibiotic-resistant individuals
(3) organisms that were all present on day 1
(4) offspring with no resistance to the antibiotic

Answers

Answer 1
Answer: The microorganisms present on day 5 were "(4) offspring with no resistance to the antibiotic" since antibiotics would have eliminated an unfit contenders. 

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Messenger RNA carries a(n) ___________ of the DNA’s instructions out of the nucleus to the ___________.a. exact copy; ribosomeb. transcript; ribosomec. exact copy; mitochondriad. transcript; mitochondria
Substances that enter the cell without the expense of cellular ATP, but are too large to directly pass through the membrane, use ________________________ in order to gain access to the inside of the cell?
The right ventricle pumps blood to the (body,lung) while the left ventricle pumps blood to the (body,lung).
A type of covalent bond where electrons are shared unequally. T/F
These plants lack flowers and seeds. which of the following is described by this statement?

Which of the following organelles assembles proteins? ribosomes Golgi apparatus nuclear envelope or endoplasmic reticulum

Answers

The right answer is Ribosomes

The ribosome is a complex composed of RNA and ribosomal proteins, associated with a membrane (in the granular endoplasmic reticulum) or free in the cytoplasm. Common to all cells (prokaryotes and eukaryotes), the ribosome (and especially its composition) varies according to the organisms, even if it is always composed of two distinct subunits.

The ribosome is a huge ribonucleoprotein complex that allows the translation of mRNAs into proteins.

Final answer:

The organelle responsible for protein assembly is the ribosome. It exists either freely in the cytoplasm or attached to the rough endoplasmic reticulum, which also plays a role in protein modification. The Golgi apparatus further modifies and packages proteins, while the nuclear envelope regulates flow of substances.

Explanation:

Out of the organelles you listed: ribosomes, the Golgi apparatus, the nuclear envelope and the endoplasmic reticulum, it is the ribosomes that are responsible for protein synthesis. Ribosomes can either be found freely in the cell cytoplasm or attached to the endoplasmic reticulum (ER), forming what is known as the rough endoplasmic reticulum (RER). The ER, specifically the RER, plays a role in further modification of proteins. Meanwhile, the Golgi apparatus is involved in further protein modification and packaging, and the nuclear envelope acts as a barrier between the nucleus and the cytoplasm, controlling the flow of substances in and out of the nucleus.

Learn more about Protein synthesis here:

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Which is caused by the earth's rotation?A.


deflection of the winds to the left in the Northern Hemisphere


B.


uneven heating of both hemispheres by the sun


C.


deflection of the winds to the right in the Southern Hemisphere


D.


deflection of the winds to the right in the Northern Hemisphere

Answers

It would be B!!! While the earth is rotating you are changing the times of days and change in the seasons occur after the earth has rotated so many times on it's axis.
I think it would be B think of the different seasons.

A fluid secreted into the small intestine during digestion that contains cholesterol, emulsification agents, and phospholipids is ________.A. bile
B. pancreatic juice
C. intestinal juice
D. gastric juice

Answers

Bile is created by the liver and stored in the gallbladder-- it emulsifies the fatty agents. 

Testosterone directly affects the

Answers

The testosterone level directly affects the ability of having a satisfying sex. It affects the men reproductive systems.
It affects the men's reproductive system.

Which mutation causes either the inclusion of an extra chromosome in offspring or the deletion of an entire chromosome?

Answers

The answer to the question stated above is non-disjunction. 

Non-disjunction causes either the inclusion of an extra chromosome in offspring or the deletion of an entire chromosome. Non disjunction during either meiosis I or meiosis II creates gametes that will generate trisomies if fertilized.
The answer is Nondisjunction

What two instruments made navigation much easier in the 1900s?Global Positioning Satellite (GPS) and two-way radio
The chronometer and the astrolab
The cross-staff and the compass.
The chronometer and the compass.

Answers

The two instruments that made navigation much easier in the 1900s were Global Positioning Satellite (GPS) and two-way radio. 
A global positioning satellite and the two way radio is the instruments that made navigation easier in the 1900s. This technology would help sailors to find their way on the vast ocean voyages.
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Where is the electron transport chain for cellular respiration located?
Im doing a review for earth science i dont know what this answer is and cant find it in my book but what is rebound?