Keystone predators effect their habitat by keeping the population of animals down.
Answer:
Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.
There are 11 organelles in total,
vacuoles: they store water
Chloroplasts: trap energy from the sun to produce food for plant cell
Cell wall: provides support and protection to the cell membrane,
Cell membrane: thin flexible barrier around a cell, controls what enters/ leaves the cell
Nucleus: 'The control center', carries the DNA of the cell
Ribosomes: Found in all cells, their jobs are to make protein
Endoplasmic Reticulum: The internal delivery system of the cell
Golgi complex: Transports materials throughout the cell
Lysosomes: Break down food into particles the cell can use. another function is they destroy old or dying cells
Mitochondria: Breaks down food to make ATP
and last but not least cytoplasm a jelly like fluid in the cell that keeps the organelles suspended
Answer:
Proteins
Explanation:
Proteins are made up of many repeating units (monomers) of amino acids that are joined by peptide bonds.
Hope this helps :)
Answer:
Vitamin C
Explanation:
The following symptoms are found in the disease known as scurvy which is characterized as a vitamin deficiency disease caused by skin rashes bleeding gums, joint pain, and stiffness more. It is caused by Vitamin C also known as ascorbic acid plays various roles in the development and growth and repair of the body cells and tissues. It is a water-soluble vitamin and deficiency of the vitamin result in scurvy or skin disease.
