How does gaseous exchange take place in amoeba

In the african savanna, more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Which of these resources is used worldwide to make construction products, pottery, and porcelain

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?