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3 years ago

Which are characteristics of mammals? Check all that apply.

Physics

1 answer:

Neporo4naja [7]3 years ago

6 0

Answer:

one of the characteristics of a mammal is their several hollow bones another is their three chambered heart and the last is highly developed nervous system

Explanation:

the reason i picked those three is because not all mammals live their life on land and also mammals font have internal fertillization when they are done they take care of their babies and when they grow up they live their own life

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velikii [3]

Answer:

The correct solution is option A "10 meters".

Explanation:

The given values are:

Wave X,

Frequency,

$F_x=200 \ H_z$

Wavelength

$\lambda_x=35 \ m$

Wave Y,

Frequency,

$F_y=700 \ Hz$

Let its wavelength = $\lambda_y$

As we know,

⇒ $v=f \lambda$

For both waves, medium is same then

⇒ $v_x=v_y$

⇒ $f_x \lambda_x=f_y \lambda_y$

then,

⇒ $\lambda_y=\frac{f_x \lambda_x}{f_y}$

On substituting the estimated values in the above equation, we get

⇒ $=\frac{200\times 35}{700}$

⇒ $=\frac{7000}{700}$

⇒ $=10 \ m$

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3 years ago

Edwin Hubble was one of the first scientists to show that galaxies are getter farther apart from each other. (A.) True (B.) Fals

lara [203]

The answer is A: True

i hopes this helps :D

5 0

3 years ago

Read 2 more answers

Describe how cell membranes are selectively permeable

attashe74 [19]

<span>Cell membranes are selectively permeable because it allows some things to enter or leave the cell while keeping other things outside or inside the cell.</span>

5 0

3 years ago

A bus travel with an average velocity of 60km/h. How long does it take to cover a distance of 500km

Mnenie [13.5K]

Around 8 hours and 20 minutes

Explanation:

I divided 500 by 60 and got 8.3333333333 and i round it up to 8.20, so it is 8 hours and 20 minutes.

8 0

3 years ago

The initial volume reading in a graduated cylinder is 30 mL. The mass of an irregular shape of an unknown metal piece is 55.3 g.

Vadim26 [7]

Answer: