Answer:
Salt water I think. Mostly oceans right?
Explanation:
1. Gases are exchanged inside the
lungs through the surfaces of
thousands of alveoli to allow the
diffusion of carbon dioxide and
<span>oxygen
2. </span>Wastes are removed through the excretory system after passing through
either the kidneys urine or the digestive tract feces
3.Blood is redirected after a change in blood pressure after birth. Blood
now flows through the pulmonary artery to the lungs to receive oxygen
4. The lungs alveoli, the intestines, the
pulmonary artery, and the excretory system
hope it helps
Answer:
the lungs take in oxygen into the body and the blood distributes oxygen to cells throughout the body
After the zygote begins to divide, a fluid-filled ball of cells, called blastocyst attaches to the uterine wall.
<span>It is the stage of implantation during the prenatal development. The blastocyst consists of an inner cell mass and the outer layer -the trophoblast. Trophoblast surrounds the inner cell mass and a fluid-filled cavity - blastocoele. Inner cell mass will form embryo and trophoblast gives rise to the placenta.</span>
Answer:
miRNAs are involved in A. transcriptional silencing
Explanation:
MiRNAs are single-stranded RNAs that are involved in gene regulation. This type of RNA allows the silencing of genes through complementarity with a transcribed RNA, thus promoting their degradation and reducing their translation levels.
