The right answer is vein (it contains blood and has valves).
The infra-cardiac veins of small and medium caliber possess this system of fight against gravity. The valves consist of a dense connective tissue, surmounted by endothelial cells, corresponding to a fold of the intima. They allow blood circulation in the sense organ / heart but prevent venous reflux.
Answer:
<em>Well, Since the elephant seals consume 200,000 calories from the squid and small fish, this means that the squid and the small fish get 2,000,000 calories from their food, thus they are able to sustain the population of elephant seals. Hope That Helps!</em>
Free-living flat worms = carnivores or scavengers
Have digestive cavity, mouth, pharynx
Parasitic Flatworms: = Feed on blood, tissue fluids, or pieces of cells from within a host
First one is axis, second one is light and energy (I think), medium sized star, I don't know the forth one, sorry, 1,300,000 times bigger than the earth, I don't know the sixth one, and 9940.73° F.
<h2>Homologous genes get Highly Conserved</h2>
Explanation:
- Eukaryotes are those organisms whose cells possess a nucleus which is enclosed within membranes.
- Plants such as Apple trees
- Animals such as Dogs and cats
- Fungi such as Mushrooms
- Protists such as Paramaecium
- Amoeba are the examples of Eukaryotes.
- Eukaryotic cell possess several rod shaped chromosomes.
- Eukaryotic cells contain membrane bound organelles such as Golgi apparatus and Mitochondria, Chloroplast.
- Asexual and Sexual types of reproduction is seen in Eukaryotes.
