What is 4 in 5 which is following false?

Biology

1 answer:

svet-max [94.6K]3 years ago

8 0

B. they are never underlined or italicized

You might be interested in

What is the Jet Stream

Norma-Jean [14]

A flow of exhaust gasses from a jet engine

8 0

2 years ago

Read 2 more answers

How can scientific conclusions be reliable, but also able to be changed with the introduction of new evidence

aleksklad [387]

Answer:

scientific conclusions are reliable as they are helpful for many things however it is true that after the evolution of new ideas the old theory have some changes or may change fully or may be proved wrong but yeah the old theories are still helpful for many reasons and things.

so I think scientific conclusions are reliable

8 0

2 years ago

1. 1 Water makes up between 70-90% of the weight of most life forms, and nearly all chemicals present in living matter are solub

boyakko [2]

Answer:

The correct model is D.

Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.

Explanation:

A water molecule is composed of one atom of oxygen and two atoms of hydrogen.

A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.

The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.