Question

IR
Q. 1: Define the following terms.
(i) Autotrophs
(ii) Heterotophs
(iii) Parasites
(iv) Symbiosis
(v) Pseudopodia
Q.2: Short answer type question.
(1) What factors are essential​

Answer 1

Ans 1)

i) An autotroph or primary producer is an organism that produces complex organic compounds using carbon from simple substances such as carbon dioxide, generally using energy from light or inorganic chemical reactions

ii) heterotroph is an organism that eats other plants or animals for energy and nutrients. ... Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs.

iii): A plant or an animal organism that lives in or on another and takes its nourishment from that other organism. Parasitic diseases include infections that are due to protozoa, helminths, or arthropod.

iv)Symbiosis, any of several living arrangements between members of two different species, including mutualism, commensalism, and parasitism. Both positive (beneficial) and negative (unfavourable to harmful) associations are therefore included, and the members are called symbionts.

v)A pseudopod or pseudopodium (plural: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that is developed in the direction of movement. Filled with cytoplasm, pseudopodia primarily consist of actin filaments and may also contain microtubules and intermediate filaments.

Ans -2) Essential Factors™ is our investigation model for understanding and analysing an incident. It is an ergonomic model and seeks to find those factors that were present in, or absent from, an incident sequence and were essential for the continuation of the sequence.