Natural selection
Bc it is
What is true of all organisms in the kingdoms Protista, Plantae, Fungi, and Animalia?
A. They are multi-celled.
B. They are photosynthetic.
C. They have cells that contain membrane-bound organelles.
D. They contain cells that lack membrane-bound organelles.
<span>As
I know Gregor Mendel - Austrian naturalist, botanist and a religious leader, a
monk, founder of the doctrine of heredity (Mendelism). By applying statistical
methods for the analysis of results of the hybridization of pea varieties,
formulated the laws of heredity. In 1856, Mendel began his experiments in
crossing different varieties of peas, differing in a single, strictly defined
criteria (for example, the shape and color of seeds). Precise quantitative
account of all types of hybrids and statistical processing of the results of
experiments that he conducted for 10 years, allowed him to formulate the basic
laws of heredity - the splitting and combining of hereditary
"factors". Mendel showed that these factors are separated and not
crossing merge and disappear. Although the crossing of two organisms with
contrasting features (for example, yellow or green seeds) in the next
generation of hybrids appears only one of them.</span>
Answer:
The testes are oval organs about the size of very large olives that lie in the scrotum, secured at either end by a structure called the spermatic cord. Most men have two testes. The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm.
Explanation:
