When an individual is dehydrated, his or her intravenous fluids should be isotonic, because either a hypertonic or hypotonic IV would both cause damage to the individual’s red blood cells. Isotonic solutions are used: to increase the EXTRACELLULAR fluid volume because of blood loss, surgery, dehydration, fluid loss that has been loss extracellularly.
Answer choices:
- A frame shift mutation in the X chromosome of a cheek cell
- A chromosomal mutation in the Y chromosome of a kidney cell
- A point mutation in the first chromosome of a sperm cell
- A substitution mutation in the third chromosome of a uterus cell
Answers:
A point mutation in the first chromosome of a sperm cell
Explanation:
Only mutations that affect the germ line are passed on to the next generation. Therefore, only mutations in the egg and sperm of an individual have the potential to affect the next generation.
Mutations in cheek cells, kidney cells, and uterus cells might cause cell death or cancer. This genetic material is not passed on to the next generation, only the egg and sperm contribute this material. Therefore, only mutations here will affect the generation.
Prokaryotes are single celled organism that lacks a membrane bound nucleus, mitochondria, or any other membrane bound organelle. Examples of prokaryotes include all single-celled organisms, most of which are bacteria. The principle ecological role of prokaryotes is to break down organic matter.
EXPLANATION:
Various steps involved in the identification of unknown bacteria are:
Various steps involved in the identification of unknown bacteria are:Isolation: The importance of this step is to isolate pure colonies of bacteria. ...
Various steps involved in the identification of unknown bacteria are:Isolation: The importance of this step is to isolate pure colonies of bacteria. ... Staining Reactions: ...
Answer: option A - threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems
Explanation:
Invasive species refers to organisms that appears at a particular habitat that has just undergone an environmental unfavorable condition.
These INVASIVE SPECIES poses THREAT to the native organisms, because they usually possess:
better resistance to disease,
higher reproductive rate, etc.
So, even when native organisms migrate or dies, Invasive species REMAINS. As a result, they threaten the maintenance of a biologically diverse ecosystem
