Give a short overview of the scientific achievments of Halley

Answers

Answer 1
Answer:

Halley — the traditional pronunciation of the name usually rhymes with valley — was born Nov. 8, 1656, in Haggerston, Shoreditch, London, England. His father was a prosperous soapmaker and property owner. Halley was tutored privately at home before entering St. Paul's School, where he excelled in mathematics and astronomy.

Halley entered Queen's College, Oxford, in 1673, when he was 17 years old. He brought with him a fine collection of astronomical instruments purchased by his father. While still an undergrad, he became a protégée of John Flamsteed, the Astronomer Royal. Halley made important observations at Oxford, including an occultation of Mars by the moon, and published papers on the solar system and on suns


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What represents a possible chromosome number of a species that uses sexual reproduction and why

HELP 7 MORE MIN AND I FAIL

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A high concentration of hydrogen ions means a solution is very acidic

In short, Your Answer would be Option A

Hope this helps!
The answer is very acidic.

A MA has opened and used part of a new multidose vial. The MA should ______ the vial.

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I think the MA should write the current date on the vial. It is important for the Ma to write the current date so as to keep track, and in case the MA requires to use it for reference when he/she wants to use it again. It is therefore important for an MA or nurses to label the vial by writing the date of use.

what is the biological definition of a species? a.a group of organisms that look alike b.a group of similar organisms that live in different areas c.a group of similar organisms that live in one particular area d.a group of organisms that can mate with each other and produce fertile offspring

Answers

Answer:

Option D, a group of organisms that can mate with each other and produce fertile offspring

Explanation:

Organisms belonging to a certain species are sexually compatible in mating or interbreeding. They have the natural potential to mate and produce offspring that can further mate with each other to produce further fertile offspring and this process must go on. An organism that reproduce asexually cannot be easily classified into  a species. Also  hybrid organism (that reproduce both sexually and asexually)  cannot be classified into species.

Hence, option D is correct

D. A group of organisms that can mate with each other to produce fertile offspring. 

Bones protect internal organs and help the body move. true or false?

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True. This is because bones provide the structural support and act as levers- along with your muscles, you can move. They protect internal organs by creating a hard framework around them, in a way.
Hope that helped you.

The process by which water seeps deep underground is called _____.a. infiltration
b. evaporation
c. precipitation
d. condensation

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A) infiltration
that should be the correct answer

Answer:

The answer is A. infiltration Hopefully this helps!

These two cells have several features in common. They also differ in several ways. The two cells share all but one feature listed below. What is that feature?A) contain DNA
B) enclosed in protein capsule
C) undergo cellular respiration
D) produce proteins in ribosome

Answers

Answer:

The correct answer would be B) enclosed in a protein capsule

Almost all living cells contain DNA as their genetic material. DNA control and coordinates the function of the cell. The two cells also must contain the DNA.

Cellular respiration refers to the set of biochemical reactions by which the cell generates ATP or energy. All the living cells produce energy through cellular respiration, however, they may utilize the aerobic or anaerobic form of respiration.

A ribosome is found in all the living cells including animal cells, plants, bacteria et cetera. They form the site for protein synthesis in all the cells.

The protein capsule is not a universal feature of all living cells. Thus, it may be present in one cell type and absent in another cell type.

Answer:

The answer is B) Enclosed in protein capsule.

Explanation:

If you look at all the other options, they are present in all the cell types. Be it a plant cell or an animal cell or bacterial cell, they all contain the genetic material DNA, they undergo or exhibit cellular respiration which is responsible for the release of energy and all the cell types contain ribosomes which is the site of protein synthesis. Only some cell types are enclosed by protein capsule like some viruses but not all cell types, thus the answer is B.