Answer:
C. four single covalent bonds
Explanation:
Carbon atoms can form four single covalent bonds.
Answer:
4.Cell wall protects the cell whiles organelles are found in the cell itself which is having the cell wall
The answer is a half-filled circle.
In the pedigree charts, squares present males and circles present females. If a female is healthy, the circle is empty (white). If a female is affected with a trait, the circle is filled-in (usually black). However, if a female is a carrier of a disease, which means that one allele is dominant and one is recessive, then the circle is half-filled.
The four factors are availability of food, water, shelter and space. The effect they have on the population includes: lower birth rates, increasing death rates or leading to emigration
