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kogti [31]
3 years ago
8

Which of the following is not true of reproduction in a pine tree? A) the polloen tube contains two diploid sperm. B) the zygote

grows into the embryo.
Biology
1 answer:
abruzzese [7]3 years ago
8 0
B. is not true so that is your answer.
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I need help with numbers 1, 2, 3, 4, and 5.
denis23 [38]
#5 the answer is glucose because it is a simple sugar and plays a role in cellular respiration and photosynthesis
5 0
3 years ago
What is the usual tone of a argumentative essay?
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Answer:

I would say that what the essay is about they're most likely going to be biased disagreeable or agreeable. The tone may be mad.

Explanation:

8 0
3 years ago
A pink flowered plant is crossed with a white flowered plant. what se the genotypes?
Angelina_Jolie [31]

Answer:

The genotype for the pink flower is Rr and the genotype for the white flower

is rr. This would lead to a 50% chance of the offspring having a phenotype of pink.

Explanation:

8 0
3 years ago
Both coal and diamonds are forms of elemental carbon. Coal is brittle while diamonds are considered to be the hardest Of all sub
Art [367]

arbon, as with many elements, can arrange its atoms into several different geometries, or "allotropes." In pure diamond, every carbon atom is covalently bonded to exactly 4 other carbon atoms in a very specific and energetically favorable geometry. The diamond cannot be broken or scratched unless many covalent bonds are broken, which is difficult to do. In another common allotrope, graphite, every carbon atom is covalently bonded to only 3 other carbon atoms, and the atoms are arranged in sheets that are not covalently bonded to each other. The sheets can be broken apart easily, ultimately meaning that graphite can be easily scratched. Coal is composed of particles of different allotropes of carbon, and some "amorphous carbon," which has no defined geometry in its atomic structure. Without a continuous network of covalent bonds, coal is easily scratched (i.e. it is not hard).



8 0
3 years ago
The immediate energy system (ATP-PC) relies on:
swat32

Answer:

c. the high-energy phosphates stored in muscle cells

Explanation:

Phosphocreatine (PC) or creatine phosphate is a compound rich in energy. It has energy stored in it which can be used to phosphorylate ADP into ATP. The phosphocreatine is stored in muscle cells when muscles are not working. The produced ATP serves as an energy source for muscle contraction. The creatine produced during ATP production is phosphorylated again into PC using ATP when muscles are resting.

4 0
3 years ago
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