B. are more difficult to control than point sources. This is because A. is wrong (point source), and C. is wrong, because it doesn't necessarily cost less or more to identify the sources. D. may be right, as non point sources are natural, such as snow melts or rain.
Answer:
The cell was first discovered by Robert Hooke in 1665 using a microscope.
The first cell theory is credited to the work of Theodor Schwann and Matthias Jakob Schleiden in the 1830s.
Hooke had discovered plant cells -- more precisely, what Hooke saw were the cell walls in cork tissue. In fact, it was Hooke who coined the term "cells": the boxlike cells of cork reminded him of the cells of a monastery.
Answer:
23 chromosomes from father
23 chromosomes from mother
46 chromosomes in total
The process of <span>surrounding and engulfing of food particles </span>is defined as phagocytosis in biology. One of the protists where phagocytosis takes place are amoeba.Protists are not true animals, plants, not fungi. However this form of feeding are exhibited like animals. Answer is C.
