During the development of human, the fetus is
prenatal human in between the embryonic state and during the birth. The stage
of development of a fetus begins at the gestational age of eleven weeks. The
fetal stage is recognized when an embryo develop to the point where the major
body organs is present.
Answer: A). cause the three bones of the middle ear to begin to vibrate.
Explanation: Sound is transmitted as waves from the outer ear through the ear canal to the ear drum. The sound waves causes the eardrum to vibrate and consequent vibration of the three tiny bones of the middle ear. The vibration of the three tiny bones causes the fluid in the inner ear to vibrate. The vibration of the fluid causes the tiny hairs to vibrate and and the vibration is converted to electrical impulses that are transmitted to the auditory nerve and to the brain, where they are intepreted as hearing (sound).
Answer:
The dura mater and pleural contain fluid which lubricates the brain and lungs respectively.
Explanation:
Dura mater is the outermost layer and a sac in the brain that envelope arachinoid and it's surrond venous channels which carried blood from the brain to the heart. The dura mater contain cerebrospinal fluid and drains it from the brain to the internal jugular vein
The pleural help in the proper functioning of the lungs and it supply pleural fluid which lubricates the lungs and allow for respiration.
Answer:
DD or Dd
Explanation:
Dimples is the dominant trait (D). Your friend has dimples so that means he or she should have at least one allele of the dominant trait to express that trait. So your friend would either be homozygous dominant (DD) or heterozygous dominant (Dd). Notice that there is a recessive allele in the second. Even with that present, dimples would be still expressed.
Both photosynthesis and respiration
