What causes people to be color-blind
can be tested scientifically
The answer is 'Cambrian' explosion. This took place approximately 541 million years ago. 'Explosion' refers to the evolution of a large range of new major animal phyla. Scientists know this by the large number of diverse fossils from this period. Prior to this period, organisms were single-celled, but over the Cambrian Explosion, lasting about 80 million years, life forms diversified rapidly to resemble the life forms existing today.
We need carrier proteins for steroid hormones because they help in the transportation from the cell they were released from to their target cell.
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It is positive because our body needs 37C to perform metabolism properly so sweating helps to balance the temperature. We lose water but water is generally provided to body by drinking or any food that has water.
The abnormal condition in which a placenta separates from the uterine wall before the birth of the fetus is known as:
Placental abruption
I hope this helps! I'm happy to answer any other questions you might have :)