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Shkiper50 [21]
3 years ago
8

What is a naturas or human-made body of water surrounded by land

Biology
1 answer:
Sonbull [250]3 years ago
5 0
I believe you are looking for a man made lake or reservoir.
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Explain the process of "Natural Selection." Use and underline/highlight the following words correctly in your explanation: (6 wo
MArishka [77]
Due to the overproduction of offspring with only finite resources, species begin to engage in competition for survival. In order to increase their chance of survival, certain species will begin to develop genetic variations that allow them survival advantages.
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3 years ago
Snapdragons are popular garden plants that produce brightly colored flowers. When a plant that is homozygous for white flowers i
elena-s [515]

Explanation:

Incomplete dominance is an intermediate effect of the dominance where the allele for a trait does not express its complete effect of a paired allele as a result both the alleles show their equal effect on the trait.

The generations are produced having a third trait as observed in the case of snapdragon flowers. In the case of flowers  

The allele which  

1. Determines the red color will be- R

2. Determines the white color will be- r

The monohybrid cross will have parents with genotypes:  

1. Red flower- RR

2. white flower-rr

The F₁ generation will have offsprings with genotype-  

RR X rr = Rr (Pink flower)

The F₂ generation will have offsprings with-  

Rr x Rr= RR, Rr and rr.

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3 years ago
What are the characteristics of a buckeye leaf?
quester [9]
The Buckeye Leaf Characteristics are is it has 5 leaf stems, it is dark green, and has long thin leaves, and it is similar to a marijuana leaf

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3 years ago
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Red marrow tissue interacts with which 2 body systems
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Answer:

I believe it interacts with the lymphatic system (because it creates lymphocytes) and the circulatory system (because it creates red blood cells).

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18. Refer to Models 1 and 2 to complete the chart below. Write yes or no in the box for cach cell.
Ostrovityanka [42]

The most primitive cells are prokaryotic. They are simple, with no organelles and no nucleus. Animal and plant cells are eukaryotic, but they express some differences such as the cell wall, chloroplasts, or centrioles.

---------------------------------------------

<u>BACTERIA CELLS</u>

  • Bacteria are prokaryotic cells.

  • Prokaryotic cells lack a nucleus, nucleolus, and organelles.

  • They only present plasmids, ribosomes, and genetic material in their cytoplasm.

  • DNA not surrounded by membrane

  • They have a cell wall that protects the cell and a cell membrane that surrounds the cytoplasm. Some of them can also present a capsule.

  • Some of them have flagellum.

  • These organisms are capable of inhabiting places with e<em>xtreme temperature, salinity, acidity, or pH, among others. </em>

<u>ANIMAL </u><u>AND </u><u>PLANT CELLS</u>

  • Both the animal and plant cells are eukaryotic.

  • They carry their genetic material in the nucleus and mitochondria.

  • Organelles are located in the cytosol, and both of them are surrounded by a protector cell membrane.  

However, they have some differences:

⇒Cell wall : <em>A </em><em>rigid structure</em><em> that provides </em><em>support </em><em>and </em><em>protection</em><em>.</em>

• Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible so they can adopt different shapes.

• Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.

⇒ Chloroplast: these are organelles that accumulate chlorophyll.

• Animal cells do not have chloroplasts because they do not photosynthesize.

• Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as the source of energy.

⇒ Vacuoles:  

• Animal cells have many and small vacuoles whose function is to store water, ions, and waste intracellular substances.  

• Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.

⇒ Other differences are:

  • The animal cell has centrioles, while the vegetable cell does not.  
  • Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.

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