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katovenus [111]
4 years ago
10

Why do you think plant cells need a cell wall as well as a cell membrane? What do you think would happen to plants if they did n

ot have a cell wall?
Biology
1 answer:
german4 years ago
6 0
Plant cells usually only have cell walls because of how they grow towards the sunlight. The cell wall is there to provide the cell with strength to support its weight.
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Unlike incomplete metamorphosis, complete metamorphosis
Ludmilka [50]
<span>B. produces an adult that's completely different from the larva.
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Amphibians live near water sources because they need an area where they can lay and protect their eggs. The early stages of an amphibian's life is spent mostly underwater. This is where they mature and slowly develop into land organisms. In the early stage of their life, they breathe through their gills and they do not have limbs yet. As they grow gradual changes in their body structures are prominent, this process if called metamorphosis.</span>
8 0
4 years ago
Compare and contrast the events of the light reaction with the events of the dark reaction
galben [10]
Dark reactions<span> make use of these organic energy molecules (ATP and NADPH). This </span>reaction<span> cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy while NADPH provides the electrons required to fix the CO2 (carbon dioxide) into carbohydrates.</span>
6 0
3 years ago
The muscular, hollow organ that temporarily holds the urine is the:
Masteriza [31]
Answer is Urine Sac .
4 0
4 years ago
Thermal denaturation experiments can be used to follow the transition of double-stranded DNA into single-stranded DNA. Which par
tia_tia [17]

Answer:

I, II and III

Explanation:

The melting temperature of a DNA double helix is affected by several factors that affect the hydrogen bonds and /or the other interactions involved in maintaining the helical structure. Two DNA strands of a helix are held together by the hydrogen bonds between the complementary nitrogenous bases. The pH of the solution would affect the hydrogen bonds. If the pH is too acidic, the hydrogen bonds acceptor atoms will accept protons from the solution and would not be able to make hydrogen bonds.  

The ionic strength of the solution represents the ions present in it. If the solution has positively charged ions, the negative charges of phosphate residues of the DNA backbone will be neutralized. This would make the double helix more stable. Similarly, a longer DNA strand would have a higher melting temperature as more heat will be required to break more hydrogen bonds as compared to a shorter DNA strand.  

3 0
4 years ago
in a phylogeny, information about relatedness is portrayed by the pattern of branching, not by the order of taxa at the tips of
MA_775_DIABLO [31]

On a phylogeny, the number of nodes separating two taxa indicates how closely related they are.

<h3>What are taxa ?</h3>

A given taxon typically includes several taxa of lower rank. Taxa are arranged in a hierarchy from kingdom to subspecies. Certain taxonomic categories, which are listed in descending order and include kingdom, phylum (in plants, division), class, order, family, genus, species, and subspecies or race, are universally accepted for the classification of protists, plants, and animals.

Kingdom, phylum, class, order, family, genus, and species are the orderly groups, going from largest to smallest. 2. Each level is referred to as a taxon (plural: taxa) or taxonomic category in taxonomic nomenclature.

To know more about taxa you may visit the link:

brainly.com/question/1673512

#SPJ4

6 0
1 year ago
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