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<u><em>In Mitochondria, the electron transport chain takes place.</em></u>
Answer:
Massive stars transform into supernovae, neutron stars and black holes while average stars like the sun, end life as a white dwarf surrounded by a disappearing planetary nebula. All-stars, irrespective of their size, follow the same 7 stage cycle, they start as a gas cloud and end as a star remnant.
Explanation:
Answer: All the above options are correct about the characteristics of Lumbriculus variegatus.
Explanation:
Lumbriculus variegatus also called the black worm belongs to the phylum Annelida and is used by biologists to illustrate:
-blood vessel pulsations,
-swimming reflex,
-peristaltic crawling behavior,
-giant nerve fiber action potentials.
These studies where carried out on them due to the characteristics they possess. These includes:
-its blood circulates in a closed circulatory system
-Freshwater worm found throughout North America and Europe
-Prefers the shallow habitats found at the edges of ponds, lakes, or marshes
-Feeds on decaying vegetation and microorganisms.
In that situation the risk of cord compression during the child birth. Serious umbilical cord problems can result in brain damage or the death of baby.
Umbilical cord occurs when the baby weight on the placenta or the vaginal walls put pressure on the cord during pregnancy labor or delivery. Cord compression during pregnancy is common problem. Sing of umbilical cord compression may include less activity form the bay observed as a decrease in movement or an irregular heart beats.
Umbilical cord compression is a medical term used to describe a condition in which a baby's umbilical cord becomes flattened by pressure of the baby.
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