Answer:
Trees. 2.1 Introduction to trees. 2.1.1 Tree terminology. 2.1.2 A shorthand for trees. 2.1.3 Cladograms, additive trees
The answer should be C, When water in a lake freezes ,it floats, providing insulation for organisms below.
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I believe the answer may be B) increased blood flow to the wounded area.
The correct answer is B) Cells all contain a nucleus and cell wall.
The fungus has nucleus and cell walls but contains no chloroplast.
Answer:
Estrus Synchronization
Explanation:
This is the procedure of manipulating the reproductive hormones of the female animals so that, the heat period occurs at relatively the same time that is convenient and preferred by the producer. This is for timed ovulation needed for techniques of artificial insemination for artificial selection. Thus the producer is able to plan his insemination programme to suite his work engagements.
The common hormones for this procedure are; Prostaglandins F2α :<u>(which suppresses the oestrous cycle, to end, and restart the entire cycle and ovualtion again to suit the producer</u>). Progestins: (<u>which inhibit heat and ovulation until it is removed by the producer</u>) and also induces oestrous cycle in a non oestrous animals,and Gonadotropin Releasing Hormone.( for inducing oestrous cycle in non oestrous animals, and for stimulating eggs production when needed.
Its advantages includes
uniformity in kids rearing,
uniformity in slaughtering period,
availability of milk round the clock,
control of transmission of infectious diseases.