Answer:
proteins, because it helps in the regulatory function of the body.
Answer:
The Laura tried to grow micro-organisms in culture broth medium in Petri-plates but the microbial growth was not observed even on the fourth day of culture which could be due to:
1. Laura could have not provided the correct broth medium maintaining the with pH and salt concentrations.
2. Microorganisms did not get optimal growth conditions.
3. The bacterial source could have died after the collection which could have lysed after their death and thus no longer visible.
Answer:
The correct answer is - pine, maple, elm and many more are conifer plants.
Explanation:
Conifers are the plant is that is cone bear nonvascular trees. These are the plants with woody trees except a few shrubs. These plants are described as the plants with leaves that appear to be needle-like and thin with a cone that bears seeds.
In the conifer plants, there are many trees including pine, maple, elm, firs, junipers, cedars, spruce and many more. These plants lack vascular tissues however they bear seeds in cones.
Thus, the correct answer is - pine, maple, elm and many more are conifer plants.
Answer:
A) rigor mortis
Explanation:
Rigor mortis is the condition of the partial contraction of muscles when the muscles cannot contract or stretch. It occurs after death as the ATP supply to muscle cells stops. The leaky cellular membranes results in leakage of calcium ions from the sarcoplasmic reticulum into the sarcoplasm. The presence of calcium in sarcoplasm triggers the binding of myosin heads to actin. The myosin heads remain attached to actin and muscles are prevented to be relaxed.
