<span>pulmonary - lungs -- circulatory helps transport as well.
if it help u plz pick as best tnx</span>
Volume
mass
size
weight
length
Answer:
B) I and II
Explanation:
Male reproductive system produce gametes in the testis which is the part of male reproductive system. Testis are two in number normally which compose of seminiferous tubules which have spermatogenic cell which are responsible for the production of spermatids with the help of sertoli cells present in the seminiferous tubules.After production of gametes the spermatid are delivered to the female reproductive system by copulating organ which in human is penis.the sperm 1st produces in the semeniferus tubules then transfer in to the rate testies ,epidydemis then vas deference and then urethra and then outside the body.
C
Pesticides, such as DDT, often have harmful effects on aquatic ecosystems because they accumulate in animals and build up in toxic concentrations as they pass through the food chain. This is referred to as <u>bioaccumulation</u>.
Explanation:
As the DDT is ingested it accumulates in the body tissues because the body of the organisms is unable to break down and excrete the chemicals fast enough or at all. This bioaccumulation also goes up the food chain/web as higher organisms prey on the lower organism on the web. For example, the aphids feed on the leaves sprayed with DDT. They are then preyed on by beetles and flies and bugs. These bugs are then eaten by birds. Eventually, the DDT will be found in the tissues of the birds, even in higher concentrations (due to biomagnification).
Learn More:
For more on bioaccumulation check out;
brainly.com/question/12536211
brainly.com/question/10234175
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