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Angelina_Jolie [31]
3 years ago
14

A normal systolic blood pressure for a 30-year-old is between:

Biology
1 answer:
Neko [114]3 years ago
6 0
The answer is 90 and 140 mm Hg.
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Students in a science class visited four local ecosystems. The students observed the species present in each ecosystem and recor
Reptile [31]

the answer is A

this is because in ecosystem 1 there are only predators and no other species are observed. therefore predators have less food to eat thus they will die of hunger or move to another ecosystem

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Which of these is a characteristic of body cells that require large amounts of energy?
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Answer:They have a large number of mitochondria.

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Help pls help pls question is above
harkovskaia [24]

Answer:

A

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What is constat mean?​
BARSIC [14]

Answer:

con·stant

/ˈkänstənt /

adjective

occurring continuously over a period of time.

"the pain is constant"

Similar:

continual

continuous

persistent

sustained

abiding

round-the-clock

ceaseless

unceasing

perpetual

incessant

never-ending

everlasting

eternal

endless

unending

unabating

nonstop

perennial

unbroken

uninterrupted

unrelieved

interminable

unremitting

relentless

unrelenting

without respite

sempiternal

steadfast

steady

resolute

determined

persevering

tenacious

dogged

unwavering

unflagging

unshaken

Opposite:

inconstant

fitful

noun

a situation or state of affairs that does not change.

"the condition of struggle remained a constant"

Similar:

unchanging factor

unchanging state of affairs

unchanging situation

Explanation:

5 0
3 years ago
How can driving a car affect the carbon cycle?
alekssr [168]

Hey there, thx for posting your question to Brainly, i've posted some information below and an explanation, hope it helps you<3

Carbon moves from the atmosphere to plants. In the atmosphere, <em>carbon is attached to oxygen in a gas called carbon dioxide (CO2)</em>. Through the process of <u>photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.</u>

<u>Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.</u>

<u>Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.</u>

<u />

<u>Hey!</u><em> Hope i was able to help, have a good one.</em>

8 0
3 years ago
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