The practice of deliberately stimulating the immune system using microbial components or inactive microbes is called

The tundra is cold year-round. it has short cool summers and long, severe winters. The tundra has a permanently frozen sublayer

harkovskaia [24]

I’m pretty sure it is B. Please double check answers tho. It’s been a while since I learned adaptations. Also, if u go to my profile, it says I am 43. I am not a 43 year old middle schooler lol

4 0

4 years ago

Need Answer ASAP only 3 min

pentagon [3]

Answer:

H.

Explanation:

other ones don't match up with the correct functions.

6 0

3 years ago

What artery supplies the chin/jaw region of the head with blood?

Ede4ka [16]

The artery that supplies the chin and jaw region of the head with blood is the facial artery which is a branch of the external carotid artery. All blood from the head arises from the common carotid artery wherein it is divided to internal carotid artery (major blood supply of the brain along with the basilar artery on the posterior side) and external carotid artery (major blood supply of the head other than the brain).

The external carotid artery has 8 major branches (from inferior to superior): (1) superior thyroid artery, (2) ascending pharyngeal artery, (3) lingual artery, (4) facial artery, (5) occipital artery, (6) posterior auricular artery, (7) maxillary artery, and (6) superficial temporal artery.

Attached is a simplified photo of the branches of the external carotid artery.

5 0

3 years ago

Voltage across the cell membrane is determined by the concentration of which 2 types of charged particles?

lisabon 2012 [21]

The answer is; Sodium (Na+) and Potassium (K+) Ions

These cations are pumped out of the cell by Na+-K+ transmembrane protein pumps leaving the inside of the cell electronegative in relation to the extracellular matrix. This membrane potential is significant especially for neurons. Depolarization of the membrane enables transmissions of an impulse along the neurons.

8 0

3 years ago

in reaction a, each sodium atom gives one electron to a chlorine atom. in reaction b, an isotope of oxygen decays to form an iso

vekshin1

The answer is b.reaction b releases more energy than reaction a releases.

The reaction a is an example of a chemical reaction while the reaction b is an example of a nuclear reaction.
Some main differences between the chemical and nuclear reactions are:
- The nuclear reaction releases more energy per gram.
- The nuclear reaction takes place in the nucleus of the atom, while in chemical reactions include electrons.
- In the nuclear reaction, part of the mass is converted into energy, which violates the law of conservation of mass.

Therefore, the nuclear reaction (reaction b) will release more energy than the chemical reaction (reaction a).

4 0

4 years ago

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