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UkoKoshka [18]
3 years ago
10

How long can sperm live outside of the body?

Biology
1 answer:
liraira [26]3 years ago
6 0
About 20 minutes<span>Sperm can live outside of the body for only about 20 minutes to an hour, depending on how exposed the semen is to the air and other environmental factors. To avoid the slightest risk of pregnancy, a woman should make sure that ejaculated semen doesn't get at all close to her vagina.</span>
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Which statement is supported by the diagram
Vikki [24]
We need the statements and the diagram bro
3 0
3 years ago
Sound is a mechanical wave. Therefore it ———
Elenna [48]

D must travel through a medium is your answer

Hope this helps

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Have a great night

-Kayla :)

5 0
3 years ago
A 2-kg bowling ball sits on top of a building that is 40 meters tall.
Alchen [17]
Okay, so this is physics. What is the meaning of KE? It's Kinetic Energy. What is the meaning of GPE? It's Gravitational Potential Energy. So how do you calculate either, and what are their significances? Kinetic -> motion, Gravitational potential energy -> energy that can be used to do work due to gravity. So is the bowling ball moving, or is it someplace it can fall from, or both?

Kinetic energy is calculated as 1/2 * mv^2, where m is the mass of the object, and v is the velocity. Potential energy for conservative forces is the product of the force and the distance over which it can do work. Thus in the case of GPE, it is the weight multiplied by the height, as gravity is a conservative force. What is the weight? It's not equal to the mass.

Hopefully these hints will get you thinking.
8 0
3 years ago
in pea plants round seeds are dominant and wrinkled seeds are recessive. the cross rr x rr, what percentage of the offspring wil
In-s [12.5K]

Answer:

0%

Explanation:

Round = Dominant

Wrinkled = recessive

Recessive = r

Dominant = R

homozygous dominant = RR

homozygous recessive = rr

Heterozygous= Rr

Since both seeds are homozygous recessive (rr)

In your punnet square, one lower case r will go on the top and the left side

r r

r

r

Something like that.

Go across your four boxes and you will end up with;

rr, rr

rr, rr

In order for it to be round, at least one box would need to have to be a heterozygous(Rr) or be a homozygous dominant.

7 0
1 year ago
4. Which of the following sensory receptors would lead you to squint in bright light?
notka56 [123]

Answer:

3 - Photoreceptors.

Explanation:

Photoreceptors are a sensor that is connected to your retina. They sense light and send the message to your brain. The sensors automatically squint your eyes if something will blind you.

The correct answer is 'photoreceptors'.

3 0
3 years ago
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