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morpeh [17]
3 years ago
13

Alexander Fleming discovered a type of that kills bacteria, which led to the development of Penicillin.

Biology
2 answers:
blagie [28]3 years ago
3 0

Answer:

mold juice

Explanation:

jeyben [28]3 years ago
3 0

Answer:

mold

Explanation:

he used was studying molds and how they formed when he accidentally discovered an antibiotic substance.

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The Various kinases can be activated by breaks in DNA.
Sonbull [250]

Answer:

The Various Kinases that is activated after the breaks in DNA is after the activation of ATM serine threonine kinase which helps in phosphorylation of other DNA replication check proteins, p53 protein (tumor suppressor protein) etc.

Explanation:

ATM activated by MRN complex at the site of DNA double stranded breaks by phosphorylation. MRN complex activity on ATM induces a conformational change in ATM kinase. So it can bind to its various substrate molecules that helps in DNA replication cycle arrest.

ATM phosphorylates CHK2 protein a product of CHEK2 gene, also known as effector kinases that phosphorylates and helps in deactivation of cyclin dependent kinases (CDKs) that helps in the prevention of progression of mitotic phase.

ATM also phosphorylates the inhibitors of p53 proteins which leads to the overexpression of p21, an inhibitor of (CDKs).

8 0
3 years ago
How can we help maintain healthy bay,estuary, and coastal ecosystem
Otrada [13]

The most obvious way we can establish and maintain a healthy coastal ecosystem is by recycling all recyclable materials and trying to live with as little waste as possible. Also, using clean transportation, such as biking and such, would help slow down air pollution; giving sealife clean air to breathe.

6 0
3 years ago
A plant absorbs energy from the sun. Where does the energy go from there?
user100 [1]
Well, since I am in 8th grade I can help, try gthis...

<span>The process by which a plant absorbs energy from the sun is, as you know, photosynthesis.

Remember the Law of Conservation of Energy - when energy is transferred, it is neither created nor destroyed but rather takes a new form.

In this case, the plant takes energy in from the sun (through sunlight, which transfers through radiation) and "leaves" the plant after the process has occurred in a form of potential energy - the oxygen produced in this process has potential energy.</span>
4 0
3 years ago
Read 2 more answers
An ecosystem engineer can cause a cascade of effects including abiotic and biotic changes.
Inessa05 [86]

Answer:

O True

Explanation:

Ecosystem engineers are able to modify the surrounding environment, either by creating new habitats or modifying/destroying existing ones to adjust them to their needs. These species can significantly alter their environments, having a large impact on the species richness as well as modifying the availability of abiotic factors (e.g., water, space, etc) of a particular area. In certain environments, ecosystem engineers can even act as keystone species. Some examples of ecosystem engineers include, among others, beavers, woodpeckers, corals, etc.

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3 years ago
A marine ecosystem off the California coast consists of leatherback turtles that feed on jellyfish, and killer whales that prey
denis23 [38]
A) a spurt in the number of jellyfish because there will be a decreased number of turtles to feed on them
7 0
3 years ago
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