Hypothesis
Because a hypothesis is an educated guess/ what you think or want to explain what may happen
Answer:
93 billion light years
Explanation:
The proper distance—the distance as would be measured at a specific time, including the present—between Earth and the edge of the observable universe is 46 billion light-years (14 billion parsecs), making the diameter of the observable universe about 93 billion light-years (28 billion parsecs).
Answer:
Explanation:
5c What is crop rotation?
Crop Rotation is the growing of different crops in succession on a piece of land to avoid exhausting the soil and to control weeds, pests, and diseases.
State two advantages of crop rotation
Increases soil fertility
Increases crop yield
Increases soil nutrients
6ai What is population?
Population is a particular section, group, or type of people or animals living in an area or country.
Species is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
Answer:
Macula densa cells, lower and renin.
Explanation:
Macula densa cells in the kidney detect lowers blood pressure which causes renin to be released from the juxtaglomerular cells which is an enzyme. The arterial cells observe the drop in blood pressure, and the decrease in Na concentration is transfer to them by the macula densa cells. The juxtaglomerular cells then release an enzyme called renin. Renin converts angiotensinogen which is a peptide, or amino acid derivative into angiotensin-1.
So many new species were being discovered, it was impossible to arrange them all in a hierarchy based on relative complexity of species.
