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natima [27]
3 years ago
14

Ki,ss me if I'm wrong. But dinosaurs still exist right?​

Biology
2 answers:
mel-nik [20]3 years ago
8 0

I still think unicorns are real haha

Doss [256]3 years ago
6 0

Answer:

No, dinosaurs have died out a long time ago!

But did you know that dragonflies used to exsist back then? They were way bigger than they are now. Alot of animals are evolutionalized versions of their prehistoric forms!

Explanation:

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Which of the following best explains why the frog feels drained due to a lack of food?
crimeas [40]

Answer:

d

Explanation

lack of food = no energy = fatigue

6 0
3 years ago
Different kinds of fungi
Kisachek [45]

Answer:

Types of Fungi: Chytridiomycota, Zygomycota, Glomeromycota, Ascomycota, and Basidiomycota.

Explanation:

[Around 120,000 species of fungi have been described by taxonomists, but the global biodiversity of the fungus kingdom is not fully understood. ]

8 0
3 years ago
Cube A has a surface area to volume ratio of 0.5:1. Cube B has a side length of 20 mm.
Kaylis [27]
Surface area is 54cm^2, volume is 27cm^3

and surface area-to-volume ratio is 2

4 0
4 years ago
During the course of an action potential, the membrane potential rapidly rises and reaches a peak of about 40 mV before falling
elena-14-01-66 [18.8K]

Answer:

This is because the voltage gated sodium channels which opens for the influx of sodium ions, which caused  increased postivity of the axoplasm closed, with simultaneous opening  of potassium channels.

Therefore depolarization stopped, thus  propagation  and transmission of action potential (caused by depolarization) which cause the reversal of charges in the membrane (making the axoplasm  more negative) for the voltage rise to 40mV also stopped.

In addition the  simultaneous opening  of voltage gated potassium channels caused K+ to leave the axoplasm to the external environments. This makes the inner membrane to be negative further lowering the potential, to -75mv. This is  re-polarization.

Explanation:

7 0
3 years ago
During the course of an E. coli transformation laboratory, a student forgot to mark the culture tube that received the kanamycin
Gwar [14]

Answer:

The plate that contains Kanamycin in it will have growth of colonies of bacteria that have been transformed with the plasmid which has the kanamycin-resistant gene. The bacterial cells that did not get transformed with this plasmid will not be able to grow into colonies in the presence of kanamycin.

While the negative control, a plate with any other antibiotic,such as ampicillin or tetracyclin, added to it will not allow growth of any bacteria on it.

Hope that answers the question, have a great day!

3 0
3 years ago
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