Answer:
Explanation:
HIV causes disease which is transmitted through the exchange of the certain type of bodily fluids like blood, semen, saliva, breast milk, and vaginal fluids. Nasal mucous, and tears does not transmit the HIV.
The sex partners which conduct unprotected sexual practices are at the high risk of transmitting the HIV. The partners may transmit the HIV by vaginal penal intercourse, penal anus intercourse, oral sex, and mouth kissing.
<span>B. pulmonary circulation
This is the circulatory system that brings blood into the heart and pumped it out to the entire body through systems of branching out veins and arteries. The aorta is the primary artery, like a major river, which then flows the oxygenated blood out into smaller arteries and veins.</span>
Answer:
Domains
Explanation:
Living organisms are divided into three domains:
Archaea
Eubacteria
Eukarya
Organisms are divided into these three domains based on genetic similarities or closeness. Archaea and Eubacteria are domains that consist of prokaryotes or prokaryotic cells.
Prokaryotes in the domain Archaea differ from those in Eubacteria because of certain characteristics like their ability to live in extreme environments and the absence of the peptiglycan in their cell walls.
Prokaryotes in the Eubacteria domain have peptidoglycan walls and RNA unique to them.
Organisms uner Eukarya, as the name suggests, have eukaryotic cells meaning the have an enclosed or membrane-bound nucleus.
I believe the answer is a. thick layer of blubber
Mammal is an warm-blooded animal that need to keep their body warm. Organ that could insulate the heat would be beneficial to keep the temperature, like layer of fat or thick fur. The example of marine mammals would be dolphin, whale, sea lion and polar bear. Thick fur will not give much benefit for mammals in water, so only polar bear have thick fur. But all of them has thick layer of blubber, so option A will be the most appropriate.
SS=1/4 Ss=2/4 ss=1/4, hope this helps :)
