The correct answer for this question is (A) Groups of cells form tissues.
In multicellular animals, a group of similar cells alongwith inter-cellular substances perform a specific function. Such an organization is called tissue. All complex animals consist of only four basic type of tissues. These tissues are organized in specific proportion and pattern to form an organ like stomach, lung, heart and kidney. When two or more organs perform a common function by their physical and/or chemical interaction , they together form organ system, eg., digestive system, respiratory system, etc. Cells, tissues, organs and organ system split up the work in a way that exhibits division of labour and contribute to the survival of the body as whole.
Answer:C
Explanation: those species have similar characteristics therefore placed in the same group
Hypoxia is inadequate oxygen delivery to body tissues. The form of hypoxia that reflects poor oxygen delivery resulting from too few Rbcs of from Rbcs that contain abnormal or too little hemoglobin is the Anemic hypoxia. Hemoglobin plays a substantial role in carrying oxygen through out the body, and when it is deficient, anemia can result, causing anaemic hypoxia' if tissue perfusion is decreased. Iron deficiency is the most common cause of anemia.
Answer:
I think it's, the nonrandom mating is defined solely in terms of departures from HW proportions for neutral alleles, without reference to phenotypes. The impact is measured in terms of genetic parameters, such as genetic variance, expected gene flow, and Δ F, assuming the infinitesimal model and mass selection.