A gazelle is born with slightly longer legs which allow it to run faster than the other gazelles in the herd. This adaptation came may have come about becausea. the gazelle needed to be able to run faster.
b. the gazelle's parents were not able to outrun a cheetah.
c. there was a mutation in the gazelle's genetic code.
d. the gazelle did not get enough nutritious food after it was born.

Answers

Answer 1

Answer: Because there was a mutation in the gazelle's genetic code. It will be nice for the gazelle to run faster, but since the gazelle was born with longer legs, we know it's just a random mutation. The gazelle's parents have little to do with it, and the nutrition of the food it eats after it's born is irrelevant to how long its legs are at birth.

Answer 2

Answer:

Otherwise known as answer: C.

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What keeps Mars in orbit around the Sun? Select one:
a. friction
b. gravity
c. magnetism
d. solar power

Answers

The Sun's gravity combined with the tangential ("sideways") velocity of Mars.

Describe the sequence of events during a blood clot.

Answers

Answer: Hemostasis includes three steps that occur in a rapid sequence:

Explanation: 1) vascular spasm, or vasoconstriction, a brief and intense contraction of blood vessels; (2) formation of a platelet plug; and (3) blood clotting or coagulation, which reinforces the platelet plug with fibrin mesh that acts as a glue to hold the clot.

or:

The Blood Clotting Process

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You can short-circuit the buildup of rage when driving by ___________________________.

Answers

It would be the best to short-circuit the buildup of your rage when driving by staying focused on your driving task. Instead of doing a violent reaction, you may as well have a deep breath and let your stress out of you by singing or calming yourself.

A microbe is invisible to the human eye, how small must an object be to be invisible?

Answers

Answer:

A normal eye with regular vision can see objects about 0.1 millimeters, less than 0.1 mm objects are invisible.to the human eye.

Explanation:

The area of triangle LMN is 18 ft2 and the area of FGH is 24 ft2. If triangle LMN is equivalent to triangle FGH, what is the ratio of LM to FG?A. 3:4
B. 9:16
C. square root of 3:2
D. 4:3

Answers

Answer: Option 'C' is correct.

Explanation:

Since we have given that

Area of triangle LMN = 18 ft²

Area of triangle FGH = 24 ft²

Since Δ LMN and ΔFGH is equivalent triangles.

As we know the theorem which states that ratio of areas of equivalent triangles is equal to square of ratio of corresponding sides.

So, it becomes,

$(\Delta LMN)/(\Delta FGH)=((LM)/(FG))^2\n\n(18)/(24)=((LM)/(FG))^2\n\n(3)/(4)=((LM)/(FG))^2\n\n\sqrt{(3)/(4)}=(LM)/(FG)\n\n(√(3))/(2)=(LM)/(FG)$

Hence, Option 'C' is correct.

Answer:

Option C

Explanation:

As we know,

Theorem of equivalent triangle states that two similar triangle's area will be proportional to square of corresponding sites.

Thus ,

$(18)/(24) = ((LM)/(FG) )^2\n$

On taking square root on both the sides and solving the equation further , we get -

$\sqrt{(18)/(24) } = (LM)/(FG)\n(LM)/(FG) = \sqrt{(3)/(4) } \n(LM)/(FG) = (√(3) )/(2)$

Thus, option C is correct

Science when birds remain airborne and moving without flapping their wings, on what are they gliding?

Answers

Soaring is a science when birds remain airborne and moving without flapping their wings. They are maintaining thrust and gliding downward but staying aloft

Further explanation

Soaring birds is where the birds can maintain flight without wing flapping, because they using rising air currents. Many gliding birds are able to lock their extended wings by means of a specialized tendon. Some land birds such as vultures and certain hawks, sustain flight for long periods without flapping their wings.

For example soaring California Condor spreads its primary feathers so that each acts as a small, high-aspect-ratio wing. This reduces turbulence at the wingtips and helping the condor to stay aloft circling slowly in thermals.

Vultures have a low aspect ratio (ratio of length to width of the wing) which generally produce a lot of drag. Vultures overcome the problem of by flying with their primary feathers extended, creating slots between them. Each primary serves as an individual high-aspect-ratio wing. This high-aspect-ratio reducing wingtip turbulence and lowering the stalling speed of the wings. This helps vultures to circle in thermals, maintaining thrust by gliding downward, but staying aloft by sinking at a rate slower than the hot air rising.

Learn more

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Answer details

Grade: 9

Subject: biology

Chapter: animals

Keywords: birds

When birds glide, they use their weight to overcome air resistance. To do this, the birds must have a certain mass. That's why, usually, large birds do the gliding motion like vultures. Here, the upward aerodynamic force by the air resistance is equal to the weight.

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