Answer:
The nucleus, cell membrane and cytoplasm.
Explanation:
The nucleus, cell membrane and cytoplasm are three elements that cannot be absent in a cell because they are necessary for the survival of the cell. The nucleus controls and regulates the activities happening inside the cell e.g. growth and metabolism etc. Cell membrane acts as a wall to protect the inner part of the cell from the external environment as well as allows nutrients and gases inside and outside the cell. Cytoplasm serves as a medium for the conduction of nutrients and waste from on place to another and also for the medium for organelles in which they floats.
Because humans eat both plants and meat
Answer:
amino acids
Explanation:
(if you are confused, I recommend watching the videos from Khan Academy and The Amoeba Sisters.)
Answer:
<h3>Plants reduce water loss by closing their stomata, developing thick cuticles, or by possessing leaf hairs to increase the boundary layer. Stomata are quick to respond to environmental cues to protect the plant from losing too much water, but still allowing in enough carbon dioxide to drive photosynthesis.</h3>
Explanation:
keep learning dude;)
Answer:
<h2>1. toward</h2><h2>2. DNA ligase</h2>
Explanation:
- DNA replication is a process in which the synthesis of the new strand takes place from parental DNA or strand.
- DNA polymerase is an important enzyme that is responsible for the adding of the nucleotide and thus forms a new strand.
- During the process of synthesis one strand is synthesized in continuous forms that goes toward the replication fork and called as a leading strand that moves in 3' to 5' direction.
- The other strand that is synthesized in pieces form that is known as lagging strand and the pieces of the DNA is joined by an important enzyme known as DNA ligase.
