Answer:
Placental detachment.
Explanation:
In the final stretch of pregnancy, vaginal bleeding tends to worry doctors and mothers a little more, as it arouses suspicion of placental detachment - a serious condition that can lead to bleeding and disrupt the flow of nutrients and oxygen to the child. Depending on the situation, the doctor may need to have an emergency caesarean section. If the detachment is only partial, however, it is possible to proceed with the pregnancy, provided that medical follow-up becomes intensive.
Answer:
In humans, both sperms and ova contain 23 chromosomes.
Explanation:
During fertilization, the diploid chromosome number 46 is regenerated in the zygote. After 24 hours of fusion, human zygote starts to divide by mitosis, commencing the embryonic period. The zygote is divided into 2-cells, 4-cells, 8- cells and then 16-cells
Answer:
c. their shape, which relates to the lock-and-key model
Explanation:
The primary source of the specificity of enzymes is their shape, which relates to the lock-and-key model
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The proton is a subatomic particle found in the center of the atom.
In the physical sciences, subatomic particles are particles much smaller than atoms. There are two types of subatomic particles: elementary particles, which according to current theories are not made of other particles; and composite particles. Particle physics and nuclear physics study these particles and how they interact.
