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ANTONII [103]
3 years ago
8

Use the image below to answer questions 4-6.

Biology
1 answer:
const2013 [10]3 years ago
3 0

i think it is 3a because when they are all together they are in like a clump so

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Describe the differences between the sporophyte and gametophyte generations of seedless tracheophyte plants and be sure to discu
kykrilka [37]

Answer and Explanation:

Tracheophyte plants, also known as vascular plants, are those that possess a supportive tissue that can also conduct fluids -The Xileme- and another tissue that conducts nutritious elements produced by photosynthesis -The Phloem-. These plants have a root (basically underground), a stem (aerial), and leaves. All of them together form the corm. And the corm counts with these vascular tissues to which we referred before.  

There are different types of Tracheophyte plants, some of them produce seeds to reproduce and disperse -Spermatophyta-  and some others reproduce and disperse by spores -Pteridophyta-. This last seedless group corresponds to ferns and other similar plants.

Pteridophytes characterizes for having a sporophyte that has stems with leaves and a root. It also has primitive xylem composed by tracheids and phloem, both of them formed by vascular bundles located in a central cylinder.

Spores are its dispersion units and are responsible for colonizing new areas. They also constitute the resistance units under extremely unfavorable conditions.  

Their life cycle is composed of the asexual phase (sporophytic phase) and the sexual phase (gametophytic).  

  • The <u>sporophyte</u>, the dominant asexual generation, it is a perennial and diploid structure. Its aerial part might disappear during unfavorable seasons, but it reappears during spring or summer.  The sporophyte is in charge of asexual reproduction
  • The<u> gametophyte</u>, instead, is and haploid structure, ephemeral and must be in the water for its survival, and for sexual reproduction to be successful. In the presence of water, masculine gametophyte -antherozoids- are released and they swim to the archegonium to meet the ovocell. Antherozoids can swim because they have flagella. After fertilization, a new sporophyte is produced.  

3 0
3 years ago
Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having develo
kobusy [5.1K]

<u>Answer:</u>

<em>The biologists clarify these similarities as a homologous pair. This is based on the principle of convergent evolution.</em>

<u>Explanation:</u>

<em>Convergent evolution</em> is understood by the phenomenon of development of similar organs in different species in different period. Those<em> homologous pair </em>have same structure but can have different function in the different <em>species of organism. </em>

The bone of human arms, wings of the bat and dolphin flippers contain many of same bones which have developed from the same embryo tissue but the function for each is <em>different in different species.</em>

5 0
3 years ago
Select the correct answer from each drop-down menu.
Neko [114]
The two correct terms for nitrate poisoning in newborn infants are BLUE BABY SYNDROME AND METHEMOGLOBINEMIA. ... Presence of high dose of nitrate in the body drastically reduces the amount of oxygen that is found in the blood, this make the color of the baby to become bluish.
7 0
3 years ago
A leaf falls from a tree and lands on the sidewalk. Identify an action-reaction pair in this situation.
Nuetrik [128]
<span>The leaf exerts a force on the sidewalk; the sidewalk exerts a force on the leaf.</span>
3 0
3 years ago
This body of knowledge is an example of
ollegr [7]

Answer:

A body of knowledge is the accepted ontology for a specific domain. A BOK is more than simply a collection of terms; a professional reading list; a library; a website or a collection of websites; a description of professional functions; or even a collection of information.

Explanation:

dont know if this is right

5 0
3 years ago
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