Answer:
the digestive system absorbs nutrients from food.
the circulatory distributes these nutrients. this maintains a cycle of balance or homeostasis and keeps glucose levels relatively steady unless you have diabetes
Answer:
Option-C
Explanation:
Hamilton gave the mathematical expression for the altruistic behaviour or trait in a population which suggested that the alleles for altruistic behaviour will be favoured by the natural selection if BR-C > 0.
The mathematical expression for the altruistic trait is rb> c
where r - relatedness, b- the benefit to recipient and itself also and c-cost to an actor.
In the given question, all the cases meet the condition of Hamilton's rule except one which is the In- law bee-eaters which raise the young near to the nest as the parents who can raise the young ones are not benefited personally from the action of the young as the young one treat them as non-kin. This does not fulfill the condition of the Hamiltons rule.
Thus, Option-C is correct.
Explanation:
The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.
Answer:
i would have to say B
Explanation
Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down. Convection currents within the earth move layers of magma, and convection in the ocean creates currents
Answer:
1a. False
1b. False
Explanation:
They are genetic clones which make them identical so there is no difference in phenotype which is the key mechanism for evolution to occur through natural selection.
- since they are of one phenotype(genetically identical) genetic drift can not occur. For genetic drift to occur, there must be a change in the frequency of one allele within a population over a period of time and this genetic variation must occur randomly for a genetic drift to occur.
