There are two approaches used when inserting a pacemaker; the epicardial approach and the transvenous approach. Epicardial approach involves the opening the chest cavity and placing a lead on epicardial sac of heart while the transvenous approach involves accessing a vein and inserting an electrode into the vein. Epicardial approach for inserting pacemakers are divided based on approach to heart thoracotomy, upper abdominal or endoscopic.
Closer examination will reveal that this animal has the presence of chelicerae but the absence of antennae. The chelicerae are usually segmented pincerlike appendages.
Chelicerates are animals that have two body segments; i.e., a cephalothorax and an abdomen.
Chelicerata is a division within the Arthropoda. These animals have six pairs of appendages.
All chelicerates have eight legs and lack antennae.
Spiders, mites, scorpions, and relatives are chelicerates.
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Answer:
i think it is the first one
Explanation:
cows make manureand algae is a decomposter for it
Puberty is defined as the physical changes that occur in the
body as sexual development is stimulated by hormonal changes. Through puberty,
a child's body undergoes the process maturity into that of an adult, who is capable
of sexual reproductive functions.
Answer: B
Explanation:
B describes the RNA processing, which only occurs during eukaryotes and invovles the splicing out of introns and putting together of extrons.
