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VARVARA [1.3K]
4 years ago
5

What occurs in the menstral cycle day 1-4 for unfertilized egg in ovary?

Biology
1 answer:
Sladkaya [172]4 years ago
3 0
On day one the levels of oestrogen and progesterone are low, having dropped quickly at the end of the last cycle. Low oestrogen level causes FSH release from the pituitary gland.
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Which statement correctly describes how attractions that hold particles break? (1 point)
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The attractive forces that hold molecules together are electrostatic forces, when particles move fast enough, these forces can no longer keep particles together.

The forces that hold molecules together in a given state of matter are purely electrostatic forces. These forces keep the molecules together in a given state of matter.

Recall that the molecules of a substance are in constant random motion. When particles move fast enough, these forces can no longer keep particles together.

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3 years ago
Fill in the blank
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Answer:

Osmosis is the diffusion of water molecules across a permeable membrane from an area of higher concentration of water molecules to an area of lower concentration of water molecules concentration until equilibrium is reached

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3 years ago
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Streptomycin is an antibiotic that interferes with the function of the 30s subunit of the prokaryotic ribosome. what is the cons
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Streptomycin is an antibiotic that used for treat batcerial infection includes - tuberculosis,  Mycobacteriujm, Avium complex, Endocarditis, Brucellosis, plague, tularemia , etc.

Streptomycin is an antibiotic that belongs to a class of drug which is known as amino glycogen antibiotics. It affects kidney toxicity and ear toxicity. It used as a standard antibiotic cocktail when it combine with penicillin.

Streptomycin has two action mechanism .Its binds adjacent to 30s decoding site .16S rRNA and S12 protein  within the bacterial 30S ribosomal subunit. Streptomycin only inhibits its growth of bacteria when it including prokaryotic ribosomes to mRNA.

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2 years ago
If a plants cells cannot fight a pathogen, what will the cells do?
alexgriva [62]
It is B, I am pretty sure
8 0
4 years ago
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What is the difference between a photoheterotroph and chemoheterotroph, and what are examples of these?
RoseWind [281]
<span>When classifying organisms like this, you are looking for two main descriptors of their lifestyle: how they get their energy and how they get their carbon. A phototroph is an organism that acquires its energy through harvesting photons. A chemotroph harvests energy from chemical bonds.

The term heterotroph is used to describe organisms that acquire carbon from organic substances (namely from other organisms). An autotroph is an organism that has the ability to fix atmospheric carbon CO2 into an organic form.

When you combine these terms, you get a word that describes how an organism harvests energy and carbon. So, a chemoheterotroph is an organism that acquires energy from chemical bonds, and uses acquires organic carbon from an external source (usually, in this case, the energy and carbon come from the same source, e.g., glucose). A photoheterotroph is an organism that gains energy from photons but gains carbon from an external organic source.

Most bacteria, fungi, and animals can easily be described as a chemoheterotroph. A specific bacteria would be Pseudomonas aeruginosa.

Photoheterotrophs would only be found in the prokaryote domains. An example would be Heliobacter. Just to note, there are very few genera of photoheterotrophs. Remember, they gain most of their energy from light (photons), and their carbon from an external organic source (i.e., they do not fix carbon).

</span><span>Basically, photoheterotrophs get energy from light and chemoheterotrophs get energy from breaking chemical bonds.
</span>
I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
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