1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NemiM [27]
4 years ago
13

True or false? investigators trying to track the early spread of hiv found hiv-infected blood samples from as early as 1956, in

the blood of a widely traveled norwegian sailor who died of immune deficiency.
Biology
1 answer:
Anastasy [175]4 years ago
3 0
False  
The diseases, announced by Dr. Stig Froland, Dr. Paul Jenum and associates, shows that AIDS happened in disengaged occasions far and wide some time before general wellbeing authorities saw it years back.   
In the Norwegian case, a mariner conceived in 1946, was first observed by Dr. Froland in 1966. He experienced general swelling of the lymph organs, respiratory diseases and different other health issues. Both his wife and child has complications as well from the ailment and all members of the family passed on in 1976.
You might be interested in
Question 3
andrey2020 [161]
The answer to this question is damp
7 0
3 years ago
Read 2 more answers
When a wave in the ocean travels toward the beach, why does a floating seagull not get pulled with it?
Arturiano [62]

Answer:

maybe do B, not all of the same water molecules travel with the same wave

Explanation:

6 0
3 years ago
Read 2 more answers
Abiogenesis refers to how living organisms arose from inanimate matter. Place the sentences in order according to how life on Ea
horrorfan [7]

Answer:

(A) -> (D) -> (C) -> (B)

Explanation:

First off, given that the problem requires us to explain how life on Earth may have arisen <u>from terrestrial origins</u>, we can discard sentence (E), as impacts from meteorites would count as extraterrestrial origins.

Then it's just a matter of describing the steps by which simple compounds turned into more and more complex structures, that would in turn lead to the origin of life.

Simple inorganic compounds (such as CO₂, or NH₃) were exposed to energy, because of that they formed simple organic molecules, like carbohydrates or amino acids.

These organic molecules, in turn, would self-assemble into more complex structures, such as proteins.

Lastly, there's the phenomenon of Compartmentalization, where large organic structures became enclosed within a membrane-like structure, separating them from the 'outside' medium and thus creating primitive cells.

5 0
3 years ago
What is the reason behind the high surface tension of water
otez555 [7]
The polarity of the water molecule helps it to cohere to nearby water molecules, forming a skin over it.
7 0
4 years ago
What were some recent events where scientific facts were changing??
kiruha [24]

The recent events where scientific facts were changing our new discoveries on the moon and the new species of early humans have been discovered.

<h3>What are scientific facts?</h3>

Scientific facts are those facts that are based on scientific theories and experiments. These facts are true, and they came from organized and systematic knowledge.

Scientific facts were always changing s new discoveries happen. Scientist discovers new things every day.

Thus, the recent events are new discoveries on the moon, flying, and land in the martian area. A new species of early humans have been discovered.

To learn more about scientific facts, refer to the link:

brainly.com/question/23206660

#SPJ1

6 0
2 years ago
Other questions:
  • At 25 °C the rate constant for the first-order decomposition of a pesticide solution is 6.40 x 10-3 min-1. If the starting conce
    5·1 answer
  • What is also known as trisomy-21
    6·1 answer
  • Explain why living organisms contain more hydrogen atoms than any other atoms, yet 65% of s typical organisms mass in oxygen
    6·1 answer
  • Which organism obtains its energy from other organisms?
    5·1 answer
  • A moraine is associated with a slow-moving sheet of ice called a
    13·2 answers
  • The basic body structure of the fly in the figure above is determined by a cluster of:
    15·1 answer
  • H2 + O2 → H2O
    10·1 answer
  • In agricultural areas, farmers pay close attention to the weather forecast. Right before a predicted overnight freeze, farmers s
    14·1 answer
  • Which inference can be drawn based on the information in the advertising?
    14·1 answer
  • Which of the following could NOT increase the rate of photosynthesis?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!