Answer:
A trait that gives an organism a reproductive advantage in the current environment
Explanation:
- Adaptations are mutations that helps an organism, such as animals or plants to survive in its environment due to a reproductive advantage.
- Adaptations may be structural or behavioral adaptations. Structural adaptations are features or the physical part of an organism that boosts its survival. Behavioral adaptations on the other hand, are responses made by an organism to help it survive or reproduce.
Answer:
B) Pure culture.
Explanation:
Obtaining a pure culture involves culturing the organism on the bacteriologic agar. Initially blood agar is used because it supports the growth of many bacteria and the type of hemolysis can be observed.
In order to obtain pure cultures, following steps are done :
1)The bacteria are normally streak onto solid media.
2) Inoculating loops are used for streaking.
3) Then the plate is incubated at desired temprature.
4) Then after sometimes , colonies are visible wherever <u>a microbial cell capable of growth on particular medium was deposited on the agar surface.</u>
As in the above scenario , a bit of isolated colony is taken and is inoculated in a separate medium thus a pure culture is formed.
Hence option B) Pure culture is the right answer.
Explanation:
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
Answer:
D. 3; 508
Explanation:
A population compromises of the number of organisms of same species which can interbreed living in a particular geographical area. These members can interbreed to reproduce fertile offspring. A population can occur both in small and large areas.
Here, Linda observed three different populations: porcupines, pinion pines and beetles. The total organisms in her study comes from adding all the organisms from the three different populations. Thus, total organisms she studied is:
25 + 151 + 332 = 508.
Hence, Linda's study encompasses 3 populations and 508 organisms.
