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Effectus [21]
3 years ago
5

The electrostatic force that holds an ionic compound together like NaCI occur when

Biology
1 answer:
andrezito [222]3 years ago
4 0

Answer:

please don't delete until i say so pleaseeeeeeeeeeeeeeeeeeeeeeeeee

Explanation:

thank you. Ill give you point back if you dont

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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
Developing countries tend to have high birth rates. why?
Phoenix [80]

Answer:

In developing countries children are needed as a labour force and to provide care for their parents in old age. In these countries, fertility rates are higher due to the lack of access to contraceptives and generally lower levels of female education

Explanation:

5 0
3 years ago
Hemoglobin is produced by
Sliva [168]

Answer: Hemoglobin is produced in bone marrow by erythrocytes and is circulated with them until their destruction. It is then broken down in the spleen, and some of its components, such as iron, are recycled to the bone marrow.

hope it help you if not sorry

6 0
3 years ago
Do you think a solar furnace could work well where you live?
swat32
<h3>Answer:</h3>

i thank we could use one

Explanation:because we don't really have cold weather in okc

hope it helps ☺

7 0
3 years ago
Fdsci 101 what general trend do you observe relative to the masses of these species? question 3 options: all species basically h
Alexandra [31]

The third and last option is correct.


Species in the past (referring to dinosaurs) were more massive.

\bf~CO_{2} levels where higher in the past, which meant that plants prospered during that time since they had a easy access to food. That contributes to the fact that herbivores could grow bigger because there was more food. Which in turn, increases the size of early carnivores which eat bigger herbivores.




Hope it helped,


Happy homework/ study/ exam!

5 0
3 years ago
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