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Eva8 [605]
3 years ago
13

When inserting a pacemaker there are two possible approaches: _______________ and _______________ with the codes divided accordi

ng to the surgical approach?
Biology
1 answer:
Svetlanka [38]3 years ago
7 0
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.  
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The reaction that releases energy for use by the cell occurs in which site?
Nimfa-mama [501]

Answer: A. Golgi Apparatus

Explanation:

8 0
2 years ago
Abnormalities present in the cells that line the uterus may prevent the production of offspring by directly interfering with whi
Dmitry [639]

Answer: Implantation

Explanation:

The uterus is the main site for the implantation of the embryo. It is the place where the embryo spends 9 months in the mother.

When the male and female gamete combine they form a zygote. It gets implanted in the uterus and then there is cell division and the development of embryo takes place there only.

Any abnormalities in this region will interfere in the process of implantation.

7 0
3 years ago
Explain how the independent alignment of homologs, and also crossing-over during the first meiotic division, each contribute to
BartSMP [9]

Answer: Homologous chromosomes are randomly distributed to daughter cells, this means different chromosomes segregate independently of each other. And they exchange segments of DNA during crossing over. This recombination creates genetic diversity because genes from each parent are exchanged.

Explanation:

Meiosis is a type of cell division that produces gamete cells, which are sex cells (egg and sperm)

Chromosomes that form a pair and are found together are called homologous chromosomes, and they are inherited from each parent. During prophase of meiosis I, the homologous chromosomes exchange segments of DNA in a process called crossing over. This recombination creates genetic diversity because genes from each parent are exchanged. <u>It results in new combinations of genes on each chromosome.</u>

After that, during the anaphase of meiosis I, the two chromosomes line up on the equatorial plane of the cell. Then, they are separated and each will go to a new daughter cell. So homologous chromosomes are randomly distributed to daughter cells, <u>this means different chromosomes segregate independently of each other.</u>

3 0
3 years ago
State one rease why an individual's pulse rate increased during exercise
Scilla [17]
The heart must beat faster during exersise because by increasing the heart rate the body is able to increase cardiac output and deliver the necessary blood flow to the mucles





7 0
3 years ago
Read 2 more answers
List three different functional types of insect (a) legs, (b) wings, and (c) mouthparts and give an example of each.
Feliz [49]
The legs of an insect are used to taste things walk jump and climb.
wings are for flying and sometimes camouflage 
The mouth parts are for piercing and sucking their prey
7 0
3 years ago
Read 2 more answers
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