Answer:
Tundra
Explanation:
Permafrost is a layer just beneath the surface of the ground that never thaws.
Answer:
There are a bunch of things.
Explanation:
Smoking and Tobacco.
Diet and Physical Activity.
Sun and Other Types of Radiation.
Viruses and Other Infections.
Hope this helps!
Transversal: A line that intersects two or more points at distinct points is called a transversal.
Answer:
What is the difference between the terms Matter and Element?
- Anything that occupies space and has mass is called matter. It can be solid, liquid or gas.
- Element is smallest classification of matter, which cannot be sub-divided into simpler components by chemical means.
What is an atom?
- An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.
What are the 4 most common atoms to the human body?
- The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you. They are found throughout your body, mostly as water but also as components of biomolecules such as proteins, fats, DNA and carbohydrates.
What are molecules?
- A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.
What is a chemical reaction?
- A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another.
According to the Rules of Atoms, will the carbon in carbon dioxide be around in a million years? How likely is it the carbon dioxide molecule will be around? What is your reasoning?
I don't know, this one you can answer yourself
Explanation:
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.
