B. Life forms have a common evolutionary ancestry.
C. Protein makes up the genetic material.
D. Evolution does not really occur.
Answer:
B. Life forms have a common evolutionary ancestry.
Explanation:
A. All organisms evolved from separate original ancestors.
-> We know this is not true. If organisms evolved from separate ancestors, they would have different genetic code.
C. Protein makes up the genetic material.
-> This was proven false in Hershey–Chase experiment.
D. Evolution does not really occur.
->This one's obviously false as speciation happens regularly.
B. helped to spread the Renaissance to northern Europe
C. weakened the prestige of the popes
D. strengthened the overseas trade of Italy
Answer;
Follicle- stimulating hormone (FSH)
Explanation;
-Follicle stimulating hormone is produced by the pituitary gland. It regulates the functions of both the ovaries and testes. Lack or insufficiency of it can cause infertility or sub-fertility both in men and women.
-Follicle stimulating hormone is one of the hormones essential to pubertal development and the function of women’s ovaries and men’s testes.
-In women, this hormone stimulates the growth of ovarian follicles in the ovary before the release of an egg from one follicle at ovulation. It also increases oestradiol production. In men, follicle stimulating hormone acts on the Sertoli cells of the testes to stimulate sperm production.
B. Earth is a closed system in terms of energy.
C. There is energy to support life on earth.
D. Energy is created but not destroyed in the earth system
Answer: C. There is energy to support life on earth.
The earth receives thermal energy from the sun via. radiation. This energy is captured by chlorophyll pigments of plants and other organisms to conduct photosynthesis. The sunlight energy is necessary for synthesis of food in the form of glucose. The glucose is converted into chemical form of energy as ATP which is required for respiration process in plants. Photosynthesis and respiration both are necessary processes to sustain life of plants, which further support life of other living organisms. Therefore, energy transfer support life on earth.
The type of RNA that carries genetic information to the site of protein synthesis is messenger RNA or mRNA in short.
The first step for this to occur takes place in the nucleus of the cell in a process called transcription. In this process, the genetic information for the synthesis of a particular protein is copied onto mRNA, in a triplet base format and it is in code,
mRNA then leaves the nucleus and enters into the cytoplasm of the cell where it attaches itself to a ribosome. A ribosome is the site where proteins are synthesized and is also nicknamed the "work bench" of the cell.
Another type of RNA called tRNA then reads the coded information on the attached mRNA and recognizes a triplet of bases on it and decodes the information. This process is called translation. tRNA then fetches the amino acid that corresponds to that triplet of bases from the cytoplasm and into the ribosome where the amino acid is linked to others to form a chain and thus a protein.