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asambeis [7]
2 years ago
6

When using a dichotomous key to identify organisms, what do we look at?.

Biology
1 answer:
satela [25.4K]2 years ago
8 0

Answer:

Its based the organism's observable traits

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Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match each type of skeletal marking to its functi
SIZIF [17.4K]

Answer:

Tubercle: allows tendons to attach to bone

Foramen: Allows blood vessels and nerves to travel through bone.

Fossa: Allows to bones to form a joint.

Explanation:

The tubercle or tuberosity in the human seletal system, is a protrusion that allows for attachment of skeletal muscles. The muscles attach by tendons, where the enthesis is the connective tissue between the tendon and bone.

Foramina inside the body of humans and other animals typically allow muscles, nerves, arteries, veins, or other structures to connect one part of the body with another.

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2 years ago
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protoporphyrin ix fluorescence and photobleaching during interstitial photodynamic therapy of malignant gliomas for early treatm
Marysya12 [62]

Prior to therapy, a high PpIX fluorescence was observed in three patients; however, after iPDT, this fluorescence was entirely photobleached. These patients' viable tumor sections had high PpIX concentrations (mean PpIX uptake per tumor: 1.4-3.0 M).

<h3>Briefing:</h3>

However, no or just minimal PpIX uptake (0-0.6 M) could be seen in the remaining two cases. Strong PpIX uptake patients demonstrated therapeutic response and long-term clinical stabilization (no progression at 29, 30, and 36 months); the remaining two patients experienced early treatment failure (death after 3 and 9 months).

<h3>Describe fluorescence:</h3>

Two steps make up the chemical process of fluorescence first, a chemical fluorophore such a protein or carotenoid absorbs shorter-wavelength light (excitation), and then some of the absorbed energy is released as longer-wavelength light (emission).

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4 0
1 year ago
A cell's digestive enzymes are closed in a membrane-bound organelle. How can these molecules function in the cell?
leva [86]
<span>The membrane bound organelle you refer to is the Lysosome. The lysosome fuses with a vacuole where it digests the contents. </span>
6 0
3 years ago
What does sustainability mean? please give examples too
satela [25.4K]
Hi there!

Sustainability means that something or someone has the ability to keep something going. 

For example, a plant could have good life sustainability because it has a special poison, keeping predators away from it.

You could be self sustainable by growing your own crops, collecting your own water, and making things you need.

Hope this helps!
5 0
3 years ago
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Biology help with this please
hram777 [196]

Vacuoles

Explanation:

Vacuoles are storage vessels within the cell that store nutrients and waste products. It does not have a role in ATP production. So, the answer is VACUOLES...

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