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Paraphin [41]
3 years ago
10

Cosmologists are scientists who study stars, galaxies, black holes, and other objects in the universe. In order to study the bil

lions and billions of stars, cosmologists use highly advanced telescopes and create computer models to trace the stars’ motion.
What is one type of limitation that requires cosmologists to use these telescopes?

money
time
the size of the system
ethical concerns
Biology
2 answers:
pishuonlain [190]3 years ago
6 0
Not sure about the answer but I think its the size of the system

8090 [49]3 years ago
6 0

Answer:

C. the size of the system.

Explanation:

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Scientists Galilel used the to observe the stars and planets
deff fn [24]

Answer:

In 1609, using this early version of the telescope, Galileo became the first person to record observations of the sky made with the help of a telescope. He soon made his first astronomical discovery.

8 0
3 years ago
The organic chemicals that help cell membranes to conserve internal fluids are:
guajiro [1.7K]

<u>Answer</u>:  

The organic chemicals that helps cell membranes to conserve the internal fluids are phospholipids.

<u>Explanation</u>:

Phospholipids are used to form plasma membrane of the cell. Plasma membrane surrounds the cell contents like various cell organelles, nucleus, ribosomes and proteins. A phospholipid molecules is made up if a polar head containing a phosphate group and the two non-polar tails made of long chains of hydrocarbon of fatty acids.

The another name for plasma membrane is phospholipid bilayer. The polar head is hydrophilic that interactes with polar environment while facing outside the bilayer while the non-polar tail is hydrophobic in nature which makes the internal hydrophobic region of cell membrane which faces inside the bilayer.

8 0
3 years ago
Placing a catheter into the aorta or directly into an artery or vein is called
Iteru [2.4K]
Nonselective catheter placement

 This can also be placed only into the aorta from any approach. Catheter placed into the arterial vessel and not manipulated to another arterial site. This also refers to the catheter that remains in the accessed vessel or that has made it into the aorta. In contrast to the selective catheter placement which is placed into a branch off the aorta or access the vessel. Each vessel arise from the aorta represents different vascularities.
4 0
3 years ago
MRSA is Methicillin Resistant Staphylococcus Aureus. Methicillin used to be nicknamed "gorilla-cillin". Which of the following s
Reptile [31]

Answer:

4. Methicillin is a strong antibiotic and MRSA developed resistance to it, making it harder to treat.

Explanation:

MRSA was first discovered in 1961. It's now resistant to methicillin, amoxicillin, penicillin, oxacillin, and other common antibiotics known as cephalosporins.

7 0
3 years ago
Read 2 more answers
30 POINTS!!!!!!!
otez555 [7]
Im not quite sure, but i believe its B. Acinar Cells_digesting carbohydrates
5 0
3 years ago
Read 2 more answers
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