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kvv77 [185]
3 years ago
11

True or false lungs excrete from the body

Biology
1 answer:
Marrrta [24]3 years ago
7 0

Answer:

True

Explanation:

lungs are responsible for the excretion of gaseous wastes, primarily carbon dioxide from cellular respiration in cells throughout the body.

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Psychology 101: Is it normal for school age people to have crushes on their teachers or professors?
nataly862011 [7]

Answer:

yes

Explanation:

he/she just you're crush nothing serious about that it's just infatuation that you feel about him or her

7 0
3 years ago
When using myplate to choose fruits and vegetables, one should include a vitamin c source such as citrus fruit and a dark green
lorasvet [3.4K]

The citrus fruits are a good source of vitamin C.

The dark green leafy vegetables also have many important vitamins and minerals. They are an abundant source of vitamin C, A, K as well as (folate vitamin B9). Other than these, they also provide iron and calcium. The dark green leafy vegetables are also a great source of fibres. But, they are not very good source of ZINC or selenium.  

hence, the correct answer is option A. Vitamin


4 0
3 years ago
The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to
Sphinxa [80]

Answer:True

Explanation:

Nerve impulse must reach a certain threshold in a neuron before action potential can be generated to intiate conduction of action potential.

Therefore if mutiple impulses are generated and these are not upto thresholds , no matter how strong the stimulI are-NO ACTION POTENTIAL WILL BE GENERATED.

THIS IS ALL OR NONE PRINCIPLE

The all or none hypotheses can be best explain with flushing of the water closet after using it. If required volume of water is not pumped into the water closet storage above, no matter how long the handle is push, FLUSHING WILL NOT TAKE PLACE.Thus the threshold volume of water must be met.

6 0
3 years ago
How does cloning work and work are the basics​
Musya8 [376]

Answer:

How cloning works: In reproductive cloning, researchers remove a mature somatic cell, such as a skin cell, from an animal that they wish to copy. They then transfer the DNA of the donor animal's somatic cell into an egg cell, or oocyte, that has had its own DNA-containing nucleus removed. ... This young animal is referred to as a clone.  

Basics of cloning:

Isolation of target DNA fragments (often referred to as inserts)

Ligation of inserts into an appropriate cloning vector, creating recombinant molecules (e.g., plasmids)

Transformation of recombinant plasmids into bacteria or other suitable host for propagation.

Screening/selection of hosts containing the intended recombinant plasmid .

Explanation:

4 0
3 years ago
What currents are responsible for powering the movement of tectonic plates
arsen [322]
C. Convection currents. the currents responsible for powering the movement of tectonic plates is convection currents which occur in the mantle. As the hotter, less dense liquid rises it displaces the cooler more dense liquid which moves the tectonic plates out of allignment<span>
</span>
3 0
3 years ago
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