Its definitely not A, nor is it D because food webs and food chains can be either land or aquatic animals. i think its B because a food chain goes up and a food web includes more organisms
HEY DEAR..
1》 All stars die, and eventually — in about 5 billion years — our sun will, too. Once its supply of hydrogen is exhausted, the final, dramatic stages of its life will unfold, as our host star expands to become a red giant and then tears its body to pieces to condense into a white dwarf.
so options B is the correct answer.
2》protostar is the answer...
hope its helpfull
Calculate the average metabolic rate of a 65-kg person who sleeps 8.0h, sits at a desk 6.0h, engages in light activity 6.0h, watches TV 2.0h, plays tennis 1.5 h, and runs 0.50h daily, If the metabolic rate for sleeping is 70 J/s, for sitting is 115 J/s, for engage in light activity is 230 J/s, for watching TV is 115 J/s, for playing tennis is 460J/s and for running is 1150 J/s.
Answer:
171.8 W
Explanation:
The Average metabolic rate can be deduced by multiplying each entity performed at a some particular hour of time with their corresponding energy, all divided by 24 hours.
Average metabolic rate = 
= 171.8 W
Answer:
Organic compounds are those compounds having carbon and hydrogen atoms called Hydrocarbon and their derivatives. For example, Methane, Ethane, Glucose and sucrose while
Inorganic compounds are those compounds which have no carbon and hydrogen atoms. For example, carbondioxide, nitrious oxide, carbonmonoxide, carbonates and bicarbonates.
descends from common ancestor
bez they have same genes coding for same Protein that are present on blood of the organism
