3 years ago

Which is the best example of natural selection

2 answers:

7 0

Answer:

The answer in ed-genuity is: A. some insects in a population survive temperature changes and pass their traits on to their offspring.

Explanation:

Just took the quiz in The Theory of Evolution :)

Talja [164]3 years ago

3 0

Answer:

the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.

Explanation:

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The magnetic field around a current carrying wire forms concentric circles about the wire. True or False

TEA [102]

Answer:

true

Explanation:

3 0

2 years ago

What is the acceleration of a ball rolling down a ramp that starts from rest and travels 0.9 m in 3 s?

cupoosta [38]

Given:
u = 0, initial velocity
s 0.9 m, distance traveled.
t = 3 s, the time taken.

Let a = the acceleration. Then
s = ut + (1/2)*a*t²
(0.9 m) = 0.5*(a m/s²)*(3 s)²
0.9 = 4.5a
a = 0.2 m/s²

Answer: 0.2 m/s²

3 0

3 years ago

A lightweight object and a very heavy object are sliding with equal speeds along a level frictionless surface. They both slide u

boyakko [2]

Answer:

No object rises a greater height. They both rise the same height.

Explanation:

Since the kinetic energy = work done by gravity

1/2mv² = mgh

h = v²/2g where h is the height and v the speed.

Since the speed is the same for both objects, the height moved is the same since the expression for the height moved is independent of their masses but dependent on their speeds.

So, no object rises a greater height. They both rise the same height.

8 0

4 years ago

In the skeletal system, these structures are responsible for connecting bones.

artcher [175]

The answer for the structures that are responsible for connecting bones is B

8 0

3 years ago

a) CALCULATE the acceleration of a 300,000 kg jumbo jet, just before takeoff when the thrust of each of its 4 engines is 36,000

Zanzabum

Answer:

a) 0.12m/s^2

b)0.0511m/s

c)0.4258 seconds

Explanation:

$acceleration= \frac{36000}{300000}$

= 0.12m/s^2

b) 184m/h

184/3600 = 0.0511m/s

$time = \frac{0.0511}{0.12}$

Time = 0.4258 seconds

5 0

3 years ago