Answer:
i think it is
Explanation:
What Four Structural Characteristics Do All Living Cells Possess? Cell Membrane. The cell membrane is a protective layer that surrounds the cell and protects each of its organelles. Cytoplasm. Cytoplasm is the thick fluid that is encased within the cell membrane and holds the cell organelles. Ribosomes. Ribosomes consist of a protein complex as well as chains of ribonucleic acid (RNA). ... Deoxyribonucleic Acid.
Answer:
Explanation:
In a cell, proteins are made in the cell's ribosomes. Ribosomes string together long chains of amino acids to synthesize proteins. The mRNA (messenger ribonucleic acid), tRNA (transfer ribonucleic acid) and the amino acids work together to form proteins.
Answer: Option B
Explanation:
The upper forelimbs of human beings and bats have similar skeletal structures but the same structure has resulted differently in whales.
This is because the natural selection in whales has resulted in change in anatomy and this change in whales has changed their anatomy.
The forelimbs of whales has changed into flippers and it helps whales in swimming.
The forelimbs of human beings, whales and bats have the common ancestors but because of different environment they evolved differently.
Lamarck represented the hypothesis that an organism can pass on acquired characteristics during its lifetime to its offspring. This theory was rejected, but nowadays discoveries in the field of epigenetics and somatic hypermutation confirmed part of it and highlighted the possible inheritance of behavioral traits acquired by the previous generation.
Answer:
Bacteria
Explanation:
Leucosomes are the white blood corpuscles or WBCs which is come out to protect the body from bacteria and other infections.
