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marin [14]
2 years ago
7

. A researcher studies the evolutionary relationships between influenza viruses by comparing the genomic sequences of the viruse

s found in pigs, ducks, and humans in a given year. When evaluating the viruses that had infected these hosts the previous year, she identifies a cross-species transfer from humans to pigs. This information supports the hypothesis that cross-species transfer leads to more severe disease if during the previous year _______ suffered a severe influenza pandemic.
Biology
1 answer:
Rainbow [258]2 years ago
8 0

Answer:

pigs

Explanation:

Influenza is an infectious disease caused by influenza viruses, which can be divided into four types A, B, C and D. In humans, influenza A and B viruses are known to cause epidemics, while A viruses are known to cause pandemics. Influenza viruses are also found in birds and mammals (e.g., dogs, cats,  cattle pigs and horses). Cross-species virus transmission refers to the transmission process of infectious viruses between hosts from different species. Several viruses that may cause severe diseases in humans have originated from animal species, e.g., avian influenza A virus that can be transmitted to humans through an intermediate host (e.g., pigs). Other examples of cross-species virus transmission include the Ebola virus and Hantaviruses. It has been suggested that cross-species transmission is a common phenomenon in rapidly evolving viruses.

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How long did it take N.E.A.R. to reach Eros?
Katen [24]

Answer:

Explanation:

NEAR remained in this orbit for 10 days and then was backed out in stages to a 100 km circular orbit by September 5, 2000. Maneuvers in mid-October led to a flyby of Eros within 5.3 km of the surface at 07:00 UT on October 26.

Launch date: February 17, 1996 20:43:27 UTC; ...

Closest approach: June 27, 1997 12:56 UTC; .

8 0
2 years ago
In which kingdoms are all organisms multicellular?
Pepsi [2]
Multicellular organisms are referred to as eukaryotes while the opposite, unicellular organisms, are called prokaryotes. Among all the kingdoms, I believe the kingdom which all organisms are multicellular are Animalia and Plantae.
5 0
3 years ago
Solid, crystal-like substances that are formed in the kidneys due to not drinking enough water or high levels of protein, sodium
Ludmilka [50]

Answer:

The correct answer is - stones.

Explanation:

Kidney stones are medically called renal calculi or urolithiasis. These are normally hard and very small minerals and salts made stones that deposites inside your kidneys. Kidney stones can be formed due to several reasons such as an unhealthy diet with higher salt, soda, and sugar constituents, high dose of minerals, dehydration, or less drinking water

To decrease the risk of forming kidney stones or if one is experiencing kidney stone should drink enough water which helps to remove formed or forming deposits of minerals.

3 0
2 years ago
Read 2 more answers
True or false Cycads are mostly found in tropical regions
egoroff_w [7]

Answer:

true i think

Explanation:

5 0
2 years ago
The hypothesis that germs desease is theory Before many scientists believed in the idea spontaneres the appearance of organists
il63 [147K]

Explanation:

The Germ Theory of Disease  indicates that microbes are the causal agents in human disease.  In modern healthcare, Germ Theory has led to a breakthrough in the treatment of infectious diseases with antibiotics such as penicillin, and the prevention of disease outbreaks through proper sanitation and vaccination.

Further  Explanation:

Biology's unifying principle states that cells are the basic units of biological organisms. Cells sharing a similar origin, group together in the body to form tissues; these typically share physical features and are arranged in regular patterns. All living things, grow, respire, reproduce etc. these processes are carried out by cells, which are thus integral to their survival.

Before the discovery of cells by Robert Hooke in 1665 with a simple microscope, many scientists had long believed that life rose spontaneously over extended periods of time. Circa 1668 Francesco Redi, challenged the idea of spontaneous generation of maggots from rotting meat by placing meat in various sealed open, partially sealed and sealed containers. Sealed containers did not show the presence of maggots, and he theorized that these were likely from eggs laid on the meat by flies. This was the development of the theory disproving abiogenesis (cells arise from other living cells); this eventually proved the unifying principle we know today.

Cell theory states that living things are comprised of cells, as their smallest units capable of functioning. Microscopy helps to prove this, as cells and their varying components can readily be seen, observed and later classified.

Learn more about cellular life at brainly.com/question/11259903

Learn more about tissue types at brainly.com/question/8487952

#LearnWithBrainly

4 0
3 years ago
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