tracheids are a structure in plants which...
carries the gametophyte
is the gametophyte thallus of a fern
carries fluids and enables vertical growth by providing vascular tissue
expands roots via mychorhizzae which increase their absorbing capacity
12 multiple choice 10 points
the first plants clearly evolved directly from an organism, that, if it existed today, would be classified as a multicellular....
green algae
brown algae
red algae
gymnosperm
13 multiple choice 10 points
to reproduce sexually, bryophytes require

Question

tracheids are a structure in plants which...
 carries the gametophyte
 is the gametophyte thallus of a fern
 carries fluids and enables vertical growth by providing vascular tissue
 expands roots via mychorhizzae which increase their absorbing capacity
 12 multiple choice 10 points
 the first plants clearly evolved directly from an organism, that, if it existed today, would be classified as a multicellular....
 green algae
 brown algae
 red algae
 gymnosperm
 13 multiple choice 10 points
 to reproduce sexually, bryophytes require

Accepted Answer

### First Question (Tracheids):
# Brief Explanations:
Tracheids are part of the xylem (vascular tissue) in plants. They transport water and minerals (fluids) and help in vertical growth by providing structural support via vascular tissue. The other options are incorrect: gametophyte - related options are about reproductive structures, mycorrhizae relate to roots and fungi, not tracheids.
# Answer:
Carries fluids and enables vertical growth by providing vascular tissue

### Question 12 (First Plants' Ancestor):
# Brief Explanations:
The first plants evolved from multicellular green algae. Green algae share many biochemical and structural similarities with plants (e.g., chlorophyll a and b, cell walls with cellulose). Brown algae (e.g., kelp) are not plant ancestors, red algae are different, and gymnosperms are later - evolved plants, not the ancestor of the first plants.
# Answer:
A. Green Algae

### Question 13 (Bryophyte Sexual Reproduction):
(Note: Since the options are not fully visible, but based on knowledge: Bryophytes (like mosses) require water for sexual reproduction because their sperm need water to swim to the egg. If options included "water" or related, that would be the answer. But as the options are cut off, assuming the standard question, the key is water - dependent fertilization.)
(If we assume the common options, e.g., if options were like "water", "wind", etc., the answer would be water. But since the options are not fully shown, we can only explain the concept: Bryophytes have flagellated sperm that need a film of water to move from the antheridium to the archegonium for fertilization.)

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

First Question (Tracheids):

Answer:

Question 12 (First Plants' Ancestor):