Answer:
While doing medical research on the human subject, following limitations are unavoidable:
a). Privacy: The privacy of the subject involved in the research should be maintained.
b). the subject must be allowed to the minimal exposure to risks and it must be tested on animals first to avoid deaths.
c). The risk associated with the physiological and physical well being of the subject must be considered.
d). The subject must be well instructed about all the risk and procedure involved in the research.
Red, green, and brown algae have accessory photosynthetic plastids containing different pigments than the chloroplasts.
<span>It is known that chlorophyll absorbs red light and reflects green. That's why plants containing chlorophyll are green. </span>At a depth of the sea where these algae live, there is no red light but different. Red, green, and brown algae have other pigments that can absorb that different light and which allow these algae to maximum use sunlight.
Homozygous is the same heterozygous is different. Such as TT and tt are homo and Tt is heterozygous.
<span>1. taxonomy is a branch of science concerned with classification of organisms
hence (5) Classification matches with Taxonomy
2.Species is the biological term referring to the basic unit (smallest rank) of classification:
hence (1) smallest unit of classification matches with Species
3.Arthropods are animals which have an exoskeleton, segmented body and paired jointed legs
hence;
(2) segmented digestive system, appendages, matches with Arthropoda and Animal characteristics
4. Tracheophyta refers to green plants which have conductive tissues (vascular tissues) for conducting water and nutrients through them.
The description " (4) Green, conductive tissue, seeds, flowers, and (7) largest division of plants term, they match with Tracheophyta and Plant Characteristics
5. in taxonomy (organisms classification) the Order, ranks in between Class and Family, hence of families makes an Order.
Therefore, (6) groups of families matches with Order</span>
