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notsponge [240]
2 years ago
13

An enveloped virus is dependent on the envelope for its ability to infect a host cell. Which virus most likely uses this mechani

sm?
HIV
polio
rabies
Ebola
Biology
2 answers:
Roman55 [17]2 years ago
6 0

The correct answer is option A- HIV virus.

HIV virus is an example of enveloped virus, that has the ability to infect a host cell by attaching itself to it and fusing with the host cell. Once infected, the virus leaves the host cell and moves to another cells to infect them. The HIV virus contains glycoprotein spikes to attach to the host cell.

MariettaO [177]2 years ago
4 0

Answer:

A. HIV

Explanation:

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Match each interaction that poses a limiting factor to its characteristic.
shusha [124]

Answer:

The proper matching is given below.

Explanation:

Predation   Typical plant defence include(thorns,sticky substances) and chemicals(toxin,bad tastingchemicals) adaptation.

Competition  When individuals fight for a common resource,the weaker one experience loss or affected adversely.

Disease       pathogens can be transmitted to host by direct contact between hosts o through soil,water,air or any other surface.

Symbiosis    This interaction is of three types : mutalism,Commensalism and parasitism.

6 0
1 year ago
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Alcohol dehydrogenase (ADH) is an enzyme that aids in the decomposition of ethyl alcohol (CH3OH) into nontoxic substances. Methy
Thepotemich [5.8K]

Answer:

d. Competitive inhibition will decrease because the proportion of the active sites occupied by substrate will increase.

Explanation:

Enzymes are bio catalysts in living cells responsible for aiding biochemical reactions.

Their active sites are primary protein  3D structure  for binding with substrates during   reactions.

Enzymes reactions are usually affected by inhibitors(e.g methyl alcohol) which compete with the active site with the actual substrate(ethyl alcohol) ,

This is an example of competitive inhibition. The more ethyl alcohol available, the more active sites  occupied, therefore denying the inhibitor methylalchol  chances to the active site, thus preventing the formation of toxic formaldehyde, and more of non toxic substances from formation of more ADH-METHYL ALCOHOL COMPLEXES at the active sites

8 0
1 year ago
How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrus
ad-work [718]

Answer:

Radiometric dating methods

Explanation:

Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.

The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.

The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.

8 0
1 year ago
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How many total atoms are in the following compound?<br><br> 2K2CO3
frutty [35]

Answer:

There is 3 because K2 is its own atom and it has 2 K2 and Co3 is its own and there's one

Explanation:

This is what I was taught

7 0
1 year ago
What gas do animals give off in the light?
Sliva [168]

Answer:

Animals give off carbon dioxide and plants make oxygen by carbon dioxide.

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1 year ago
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