Biology

Climax communities in a biotic succession are usually characterized by?

A. a constant change in the appearance of the communities B. different species that are constantly changing C. a stable…

4 years ago

Grasses recover quickly from bush fires in the savanna because of their?

A. perennating organs B. rapid growth rate C. fibrous roots D. succulent stems Correct Answer: Option A - perennating organs

4 years ago

The causative agent of typhoid fever is?

A. salmonella B. entamoeba C. escherichia D. shigella Correct Answer: Option A - salmonella

4 years ago

An organism which exhibits extracellular digestion is?

A. spirogyra B. paramecium C. amoeba D. rhizopus Correct Answer: Option D - rhizopus

4 years ago

A characteristic that best exemplifies the evolutionary advancement of mammals over other vertebrates is the?

A. viviparous mode of reproduction B. possession of paired limbs C. terrestrial mode of life D. possession of a heart…

4 years ago

One primitive feature of the coelenterates is the possession of?

A. a dorsal mouth B. radial symmetry C. bilateral symmetry D. a false foot Correct Answer: Option B - radial…

4 years ago

Which of the following vertebrates has the most simple structured heart?

A. reptile B. fish C. mammal D. amphibian Correct Answer: Option B - fish

4 years ago

The evidence that supports the advancement of ferns over mosses is derived from?

A. comparative anatomy B. molecular records C. biochemical similarities D. physiological records Correct Answer: Option A - comparative anatomy

4 years ago

The role of the Golgi complex in a eukaryotic cell is to?

A. conduct irons in and out of the cells B. transport genetic materials out of the cell C. provide attachment…

4 years ago

The part of the mammalian skin involved in temperature regulation is the?

A. sweat gland B. hair papilla C. hair follicle D. sebaceous gland Correct Answer: Option A - sweat gland

4 years ago