The accumulation of several mutations in the main gene on the virus's surface may be able to give H7N9 the ability to spread like human flu viruses do, passing from person to person through coughing and sneezing.

8 0

2 years ago

Read 2 more answers

Levart [38]

I'm assuming your test is done by now, but the answer is B. An ion forms when an atom has a positive or negative charge. In other words, an atom is an ion whenever the amount of protons and electrons are unequal.

7 0

2 years ago

Justify your choice by writing a hypothesis to explain how it has stopped Claire from breaking down her food. The hypothesis is

Troyanec [42]

The complete question is attached to the answer.

Answer:

The correct hypothesis would be - the food (proteins) are not completely broken down in the intestine due to intestinal Protease production is lower than normal in Claire.

Explanation:

According to the image, we can find that the normal intestine fluid has the same pH as the pH of claire's Intestine fluid which is suitable for the breaking down of the food or protein in particular. It is also found that there is some amount of protein digested which suggests that there is no mutation in the active site.

According to the graph, claire is able to break down or digest the food completely if 1mg proteases enzyme is used so it proves the enzyme is produced less than normal. On the basis of this information, the correct hypothesis would be -

"The food (proteins) are not completely broken down in the intestine due to intestinal Protease production is lower than normal in Claire."

8 0

3 years ago

How do we know global warming is real

notka56 [123]

Answer:

Because of the vast differences in the seasons

Explanation:

Global warming doesnt only pertain to the rise in heat levels but the major diffrence in each season. this means winters are extreamly cold and summers are unbearably heated

7 0

2 years ago