CHAPTER ONE THE CHEMICAL COMPONENTS OF THE CELL Biology Form Three Student Book

1 answer:

7 0

1. Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
2. The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you.

You might be interested in

How do we use self-schemas to process information about ourselves?

WITCHER [35]

Answer:

Explanation:

Self-schemas allow individuals to manage, organize and interpret various information regarding to themselves through various memories, beliefs, and experiences that have been formed and gathered over the years. All of this information is processed in the middle frontal lobe of the brain, which is why people with damage to this area tend to have an altered perspective of themselves.

8 0

3 years ago

Which statement can be best supported by the fossil record

kirill [66]

Answer:

Many organisms that lived in the past are now extinct .

Explanation:

please mark me as brainliest

5 0

3 years ago

When nucleotides polymerize to form a nucleic acid _____.

AleksAgata [21]

Answer:

<h2>a covalent bond forms between the sugar of one nucleotide and the phosphate of a second</h2>

Explanation:

8 0

3 years ago

Science: Match the parts of the eye to their functions: Structure: 1. Iris 2. Cornea 3. Lens 4. Retina 5. Photoreceptors 6. Opti

alexgriva [62]

Answer:

iris - b

cornea - f

lens - e

retina - c

photoceptors - b

optic nerve - h ( definately know dis one)

rod cells - e

pupil - a

cone cells -g

i tried

Explanation:

5 0

3 years ago

A rabbit eats a carrot for food. What happens to the molecules of the food?

Naddik [55]

I’m not sure but I’m guessing the answer would be the first one !

7 0

3 years ago

Read 2 more answers