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Degger [83]
3 years ago
12

How does leap year work?

Biology
1 answer:
Lilit [14]3 years ago
6 0
It happens every 4 years
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________ thousands of tiny projections that add even more surface area to villi​
victus00 [196]

Answer:

Each villus, in turn, has thousands of even smaller projections called microvilli (singular: microvillus).

Explanation:

The villi contain capillaries, which are tiny blood vessels. Nutrients are absorbed into these capillaries across the surfaces of the villi and microvilli. Because there are millions of these tiny projections, they greatly increase the surface area for absorption.

6 0
2 years ago
Could someone please help me with this ASAP thank you!
Oksanka [162]

Answer:

11. Muscular Organ

12. Veins

13. Arteries

7 0
3 years ago
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Two students are discussing the processes that form the different rocks near mountains and lakes. Which choice below compares th
BARSIC [14]

Answer:

Processes of rock formation : Erosion & weathering, dissolution

Explanation:

Rocks are naturally occurring solid mass, or aggregate of minerals / mineraloil matter.

Processes that form rocks :

  • Erosion & weathering - breaks down mountains & boulders into sediments
  • Dissolution - Chemical weathering, acidic water wears away stones gradually
8 0
3 years ago
What is commensalism
IgorLugansk [536]

Answer:

An association between two organisms in which one benefits and the other derives neither benefit nor harm.

Explanation:

8 0
3 years ago
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In the formula, E K = 1/2 • m • v 2 if mass (m) was doubled, how much would kinetic energy
Viktor [21]

Answer:

mass doubled makes KE twice as large

velocity doubled makes KE 4 times as large

Explanation:

Try it with an example

m = 4

v = 8

KE = 1/2 m * v^2

KE = 1/2*4 * 8^2

KE = 1/2 * 4 * 64

KE = 128

Now double the mass

m  = 8

v = 8

KE = 1/2 8 * 8^2

KE = 1/2 8 * 64

KE = 4 * 64

KE = 256 double what it started out as.

Now do it again.

m = 4     That was the original mass

v = 16

KE = 1/2 4 * 16^2

KE = 2 * 256

KE = 512

When the velocity is doubled the KE becomes 4 times as big.

4*128 = 512

4 0
3 years ago
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