Answer:
They help to stop harmful germs from entering the body
Explanation:
- The skin can prevent bacteria and microorganisms from entering the body (unless it is damaged)
- Mucous membranes line the mouth and nose and are coated with secretions that fight microorganisms and harmful bacteria
- Tears help to clear debris from the eye to prevent infection
Answer:
A
Explanation:
Thick clouds can trap lots of heat. This has a warming effect on earth.
Answer:
C. The results of a model event may not be similar enough to the results of the actual event.
Explanation:
The problem with models is that sometimes we trust them too much! Sometimes they are not accurate for long-term actual events. This is answer choice C.
- Models are never more accurate than reality, so rule out A.
- The model is based on our predictions of the actual event, so rule out B.
- The model being "too similar" to the actual event is what we want! So rule out D.
Answer:
Translocation
Explanation:
Translocation is a chromosomal defect in which part of a chromosome breaks off and reattaches backward on the same chromosome.
Translocation can happen due to many reasons like:
A) Some of the changes that arise around the time of conception or production of sperm or egg.
B) The inheritance of altered chromosome from father or mother.
Translocations can be divided into two forms:
- Reciprocal translocation
- Robertsonian translocation.
In reciprocal translocations, fragments of two chromosomes break off from two different places, break and swap each other's segments. While in Robertsonian translocation one chromosome attached with other.
Hope it help!
A) Active transport
Osmosis - active transport - substances move from low to high concentration
