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Gekata [30.6K]
3 years ago
7

Which reproductive method is the only one available to mosses and ferns?

Biology
1 answer:
nlexa [21]3 years ago
6 0

Answer:

alternation of generation with both sexual and asexual reproduction

Explanation:

Both moss and fern belong to kingdom plantae. The gametophyte is dominant in moss and sporophyte in fern. The gametophyte produces games that fertilize forming an embryo. The embryo develops into a sporophyte that produces spores which then germinate forming a plant.

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Mkey [24]

As a parent you are responsible for another human for a lifetime. They rely on you to keep them healthy and to provide them with everything that they need to survive.

4 0
3 years ago
Which one of the following is the correct sequence of events that correlates to the sequence of events of a nerve impulse?
quester [9]

Answer:

the correct sequence of the events happened during nerve impulse is (d): 2,1,4,3

Explanation:

Originally K+ ions remains inward the membranes while Na+ ions remains outward to maintain a resting potential of membrane.

Upon stimuli Sodium channels open on membrane and Na+ diffuses inward leading to the depolarization of membrane that is it becoming more positive due to Na+ and K+ ions.

To regain it polarized state or in repolarization state Potassium channels open and K+ begun to diffuse outward while Sodium channels gets closed and Na+ ions remains inside the membrane.

Potassium channels are not efficient as compared to Sodium Channels, so an excess amount of K+ion move outward so Hyperpolarization state achieved.

As the both ions are on the wrong side and will not be available for the next nerve impulse. Hence in Refractory period by the help of Na+/K+ pum, both ions move back to their original place and membrane achieve its resting membrane potential state.

8 0
3 years ago
if your corpus collosum were severed,could your right postcentral gyrus know what your left hand was doing ?why or why not
Masja [62]

I would make an educated guess to say yes because the left and right hemispheres control opposite sides of the body.

3 0
3 years ago
The birth canal or opening from the uterus out of the body is called
miss Akunina [59]

Answer:

muscular canal,vagina.

Explanation:

3 0
4 years ago
Which of the following mechanisms is NOT used to propel lymph through lymphatic vessels? A. gravity B. small heart-like pumps C.
Colt1911 [192]

Answer:

B. small heart-like pumps

Explanation:

Small heart-like pumps is a mechanism that is NOT used to propel lymphs through lymphatic vessels.

5 0
4 years ago
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