During his trip on the HMS Beagle, Darwin found that . A plants and animals living in temperate regions were most similar to each other, regardless of the continent on which they were found.
B fossils found on a particular continent were clearly not related to the plants and animals living on that continent today.
C plants and animals were similar on every continent and in every type of region.
D plants and animals living on one continent seemed more closely related to each other, than to plants and animals living in similar regions on other continents.

Option D

Plants and animals living on one continent seemed more closely related to each other than to plants and animals living in similar regions on other continents.

Explanation:

From Darwin's discoveries, he noticed that there was a strong relationship between the environment and the characteristics of the living organisms present there.  He proposed that the environmental conditions affected the development of certain traits in organisms present there, in their quest for survival and adaptation.

These traits were passed down from parents to offspring, producing a population of organisms with similar character traits found around the same geographical location (continent in this case)

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

yes it is weird but true