Effective against viruses.
Heyo. c:
The only way for gases to diffuse in and out of the leaf is through small openings on the underside of the leaf, the stomata. These stomata can open and close according to the plant's needs. The tissues of the leaf inbetween the epidermal cells, into which gases diffuse from the stomata, are called mesophyll.
Observe wild dolphins, porpoises, and seals from safe distances of at least 50 <span>yards. You could u</span><span>se binoculars or telephoto lenses for a better view of the animals, l</span><span>imit overall viewing time to no more than 30 minutes. </span><span>Avoid circling or entrapping marine mammals between watercraft, or watercraft </span>
<span>and shore , a</span><span>void abrupt movements or loud noises around marine mammals . You need to try and AVOID</span><span> separating mother/calf pairs and m</span><span>ove away cautiously if behaviors are observed that indicate the animal is </span>
<span>stressed. You can also try to avoid them even if they do come to you. it's more than three, but there ya go :)</span>
That would be A.
The adult forms of seedless vascular plants(such as ferns) have water conducting tissues(xylem and phloem) that nonvascular plants do not.
They both have a gametophytic and sporophytic stage and their sperms swim in water using their flagellum.
Zygote always forms from fertilization of an egg(nucleus of sperm and egg merge to create diploid zygote).