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3 years ago

solid water is less dense than liquid waterdiscuss one way this property is important for living organisms:

Biology

1 answer:

jekas [21]3 years ago

8 0

Explanation:

When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density

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“a phylogeny is just a hypothesis” what does that statement mean

andreev551 [17]

Answer:

Scientists consider phylogenetic trees to be a hypothesis of the evolutionary past since one cannot go back to confirm the proposed relationships.

Explanation:

Basically it is a hypothesis from before hypothesis actually were called hypothesis

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3 years ago

Species with homologous structures most likely:

nikitadnepr [17]

Species with more likely homologous structures share a common ancestor.

D. share a common ancestor.

<h3>What are example homologous structures?</h3>

The most correct definition for homology would be: They are structures of individuals, of different species or not, that were inherited from a common ancestor. The human arm is homologous to the horse's front leg. The bat's wing is homologous to the whale fin.

With this information, we can conclude that homologous have same embryological origin of structures from different organisms, and these structures may or may not have the same function

Learn more about homologous structures in brainly.com/question/7904813

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2 years ago

Read 2 more answers

A performer, seated on a trapeze, is swinging back and forth with a period of 8.90 s. If she stands up, thus raising the center

iren2701 [21]

Answer:

8.800s

Explanation:

When the performer swings, she oscillates in SHM about Lo of the string with time period To = 8.90s.

First, determine the original length Lo, where for a SHM the time period is related to length and the gravitational acceleration by the equation

T = 2π×√(Lo/g)..... (1)

Let's make Lo the subject of the formulae

Lo = gTo^2/4π^2 ..... (2)

Let's put our values into equation (2) to get Lo

Lo = gTo^2/4π^2

= (9.8m/s^2)(8.90s)^2

------------------------------

4π^2

= 19.663m

Second instant, when she rise by 44.0cm, so the length Lo will be reduced by 44.0cm and the final length will be

L = Lo - (0.44m)

= 19.663m - 0.44m

= 19.223m

Now let use the value of L into equation (1) to get the period T after raising

T = 2π×√(L/g)

= 2π×√(19.223m/9.8m/s^2)

= 8.800s

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3 years ago

Which is the best description of the two organisms highlighted in orange?

never [62]

Answer:pls add a picture so we can see the organisms

Explanation:

5 1

2 years ago

What would happen if the bases in DNA strands were connected by a bond other than a hydrogen bond?

tekilochka [14]

The correct answer is It would be more difficult for DNA to unzip since it would require more energy to break the bonds.

That is because it would most probably be a covalent bond and such a bond is stronger than a hydrogen bond which means that more energy would be needed to break it.

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2 years ago

Read 2 more answers