Lithosphere: I am composed of rocks and minerals
Hydrosphere: I am all the different forms of water
Cryosphere: I am all that is ice
Atmosphere: I am mostly nitrogen and oxygen gases
Biosphere: I am composed of plants and animals, including humans
I hope this helps :)
Answer:
A. the heterozygote advantage
Explanation:
Heterozygote advantage is the condition where the heterozygous individual has higher relative fitness than both homozygous dominant and homozygous recessive individual. This means that the heterozygote individual has higher chances of surviving than both the homozygous counterparts. Sickle cell anemia is a recessive inherited disorder in which oxygen carrying hemoglobin has an abnormal structure. Hence, the resultant RBCs are not spherical but have crescent sickle shape. The oxygen carrying capacity of such RBCs is drastically reduced but they are unaffected by malarial parasite due to their abnormal structure.
- A person with both the recessive genes for sickle cell would not be able to survive due to insufficient oxygen transport in body.
- A person with both the dominant genes would be free of sickle cell anemia but in case of malaria would not be able to survive as the normal RBCs would be hijacked by the parasite.
- A hetrerozygote would survive both in malaria and sickle cell condition since he has enough normal RBCs for oxygen transport but also has sickle cell RBCs which are unaffected by malarial parasite.
Answer:
stress
Explanation:
u are studying some things that are keeping u sad
and if u don't open up ur gonna suffer from anxiety
Answer: D, lunar are 29.5 days, calendar are 28 to 31 days
Explanation: 1. average lunar month lasts 29.530575 days or 29 days, 12 hours, 44 minutes, and 2 seconds, a few days short of a calendar month. The orientation of the illuminated side of the Moon in the Northern Hemisphere. A lunar month is the time it takes the Moon to go through all its phases.
Answer:
B. Esophagus
Explanation
You digest food. I goes into your mouth down your esophagus and into your stomach that food goes on a long journey down. And you know what happens
