Identify the three embryonic tissue layers of bilaterally symmetrical animals.

Q: Describe maximum parsimony.

A: Evolutionary trees are models that seek to reconstruct the evolutionary history of taxa—that is, spe...

Q: According to a report by Down to Earth, India faces an increasing threat from acid rain -- earlier...

A: Rain is fluid water as beads that have dense from barometrical water fume and afterward become weigh...

Q: How does enzyme influence a biological reaction.

A: The enzyme acts as a catalyst for a reaction. It has an active site where a substrate binds and is t...

Q: How did the prints become trace fossils?

A: Step 1 Fossils are remains, tracks, impressions, or traces of organisms that existed in the past. Th...

Q: What is a functional syncytium?

A: It is also involved in the removal of waste products from the body. It has three components: blood, ...

Q: Describe the causes and treatments of selected STDs

A: Various diseases as well as infections which are primarily transmitted through sexual intercourse wi...

Q: The endosymbiotic theory explains the:a. origin of the first prokaryotic cells.b. origins of mitocho...

A: Genome is referred to as the genetic material of an organism that can be DNA or RNA(viruses). The ge...

Q: If the telencephalon was removed from a 5-week-old embryo, which of the following structures would f...

A: Telencephalon also known as the cerebrum refers to the region of the brain that includes the cerebra...

Q: what stage are sister chromatids separated

A: Cell division takes place by nuclear as well as cytoplasmic division.  There are two types of cell d...

Q: Which nutrients are in plasma?

A: Nutrients can be defined as the compounds  present in foods which is essential to life and health, p...

Q: Although the stomach is normally thought of as the major player in the digestive process, the bulk o...

A: Although the stomach is normally thought of as the major player in the digestive process, the bulk o...

Q: In a negative feedback loop, the effector produces changes that are a. in the same direction as the ...

A: Introduction  Hormones play important role in normal physiology in our body. They control various ph...

Q: Wallace is the victim of a hunting accident. A bullet grazed his vertebral column, and bone fragment...

A: The vertebral column is the spinal column that is known to be the central axis of the skeleton of al...

Q: Provide examples of three types of carbohydrates, and identify the primary functions of carbohydrate...

A: Step 1 Carbohydrates are polyhydroxy aldehydes or ketones and their condensation products. Aldehyde ...

Q: Hybridomas are formed by fusing antibody-producingwhite blood cells with:(a) Viruses(b) Bacteria(c) ...

A: Hybridoma: A hybrid cell used as the basis for the production of antibodies in large amounts for dia...

Q: Distinguish among sensory, association, and motor areasof the cerebral cortex.

A: Cerebrum makes up about two third of the human brain, consists of two cerebral hemispheres joined by...

Q: Explain how pulmonary ventilation affects abdominal pressure and vice versa.

A: The human body is a well built machine in which all the organs coordinate together to make it work. ...

Q: Diagram the parts of a long bone, and list the functions of each part.

A: Long bones are one of the kinds of bones found in the skeletal system. It can be broadly divided int...

Q: Describe the blood cells associated with innate defenses, and detail how theyfunction.

A: Immunology is a section of biology that includes the study of molecules, cells, and organs that buil...