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Nuetrik [128]
3 years ago
9

How does blood enter and exit the heart?

Biology
2 answers:
Irina-Kira [14]3 years ago
8 0
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. ... As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated
Naily [24]3 years ago
5 0
Super vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonic valve
Pulmonary artery
Lungs
Pulmonary vein
Left atrium
Bicuspid valve
Left ventricle
Aortic valve
Aorta
Rest of the body
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How does biomass in a community change as succession proceeds?
fenix001 [56]

A

It increases because the biodiversity of the community in the environment during succession increases.

Explanation:

During primary succession, the nutrients in the rocks are gradually released as pioneer plants help break up the rocks into soil. These nutrients are taken up and more species of plants are able to thrive in the environment including the perennial and biennial plants. These plants provide food and shelter for higher organisms (hence many longer food webs and chains) and this is why biodiversity increases with increased succession until the climax community is reached. Increased biodiversity means increased biomass.  

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For more on ecological succession check out;

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8 0
3 years ago
At what plate boundaries do you find the most explosive volcanoes?
Volgvan

Answer:

A) divergent

Explanation:

Divergent plate boundaries are where you find the most explosive volcanoes.

8 0
3 years ago
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According to the cladogram above, scientists use fossil evidence to anatomically bridge the gap between what two organisms?
Verizon [17]
The answer is B (<span>fish and amphibian) :)</span>
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Blooms in ponds are caused by___. a.archeabacteria b.cyanobacteria c.cocci d.viruses
baherus [9]
B.cyanobacteria



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6 0
3 years ago
photosynthesis is the process in which plants and other producers make their own food. which molecule is the food for the produc
GREYUIT [131]

Answer:

glucose is the food for producers. they make their own food with the photonic energy from the sun. this energy is then passed to primart consumer, then secondary consumers, then tertiary consumers. energy decreases as it climbs the food pyramid. only 10 percent of the previous tier is carried onto the next tier.

for example if plants had 10,000 kilocalories, grasshoppers would get 1,000 kilocalories,

frogs would get 100 kilocalories,

and snakes would get 10 kilocalories.

kilocalories are a unit of energy.

i hope this helped! have a nice day

8 0
4 years ago
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