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Lorico [155]
3 years ago
7

Elements in the same period have the same ________________________.

Biology
2 answers:
statuscvo [17]3 years ago
8 0

Answer:

All of the elements in a period have the same number of atomic orbitals.

Explanation:

For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons. As you move down the table, every row adds an orbital.

Ainat [17]3 years ago
7 0

Answer:

Elements in the same period all have the same number of valence electrons.

Explanation:

"Elements present in horizontal rows are called as periods so elements belonging to the same period have same number of shell as the electrons are added in the same shell of the element."

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kotykmax [81]

Answer: The tracheids have important functions in the plant.

Explanation: The mechanical support is provided by the lignified walls of tracheid cell. the helps in other functions of the plant such as transporting water and getting the solute from the root to the stem and eventually the leaf of the plant.

The tracheids are most useful in the gymnosperms where elements need to be transported.

Identifying a tracheid in a cross section is quire easy as the tracheid cells fit into each other neatly and piled up similarly and have identical shapes as well which makes them obvious from other cells.              

The two examples of tracheid plans could be

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The most common thing that could be found in traceid plant is that this cells are mainly present for transporting either water other solutes in the plant body.

4 0
3 years ago
What is the only way that carbon dioxide is removed from the carbon cycle?
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Explanation:

Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

8 0
3 years ago
Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophy
zavuch27 [327]

Answer:

Earliest- gametophyte dominance, sporophyte dependence

Middle- sporophyte dominance, gametophyte independence

Recent-  sporophyte dominance, gametophyte dependence

Explanation:

The life cycle of plant alternates between the two phases: the haploid gametophyte which produces gametes and the diploid sporophyte which produces spores.  The evolution of land plants shows how these are dependent on each other in terms of the requirement of nutrition.

In bryophytes, the gametophyte is the dominant phase on which the sporophyte depended. Later in pteridophytes, the sporophyte became dominant which is present in the later evolved groups namely the gymnosperms and the angiosperms. The gametophyte was independent on the sporophyte but in angiosperms and gymnosperms, it is dependent.

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3 years ago
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trapecia [35]

Answer:

B

Explanation:

The statement typically depicts Ohm's law which can be mathematically represented as, I = V/R or V = IR. This representation means that as the current increases, the voltage also increases.

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3 years ago
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