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netineya [11]
3 years ago
11

A person who is homozygous for tnf-alpha (+/+) has which phenotype

Biology
1 answer:
padilas [110]3 years ago
3 0

They produce normal TNF-alpha protein

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When a person is cut, the injured tissue initially releases chemical signals into the bloodstream. These chemicals signal platel
guajiro [1.7K]

Answer:

Platelets would release signals to stimulate the production of more platelets

Explanation:

Positive feedback mechanism is one of the two types of feedback mechanisms (other being negative feedback mechanism) in which the products of a process stimulates more of that product to be synthesized or produced. In other words, the result of a reaction increases the secretion of more results.

In this case where the injured tissue of a cut initially releases chemical signals into the bloodstream. These chemicals signal platelets to be attracted to the injured area. However, if this is a positive feedback mechanism as explained above, Platelets would release signals to stimulate the production of more platelets.

4 0
3 years ago
1.A.)The sun's energy causes air molecules to move rapidly: temperatures are __________ and it feels _____________.
Kamila [148]
Sun's energy

<span>causes air molecules to move rapidly; temperatures are high and it feels warm</span>

6 0
3 years ago
Which is true of studies of height in children from around the
Mekhanik [1.2K]

Answer:

the first one is right..

4 0
3 years ago
Place the following taxa in order of "inclusion of fewest number of species" to "inclusion of most number of species". 1. Domain
aalyn [17]

Answer:

1)Genus 2)Family 3)Order 4)Phylum 5) Domain

Explanation:

Species is a large group of living organisms that can breed freely among themselves, exchange genes and produce offspring.

Taxonomic rank is the group of living organisms that are related to each other and most basic rank is species. The lower the rank the smaller it be and contain most similar organisms.

The higher rank comprises by combining of smaller ranks like in your question the family contain many genus and order contain many families and so on. Thatswhy most higher rank would contain maximum number of species.

6 0
3 years ago
What do sutures tell you about the structure of the skull?
Phoenix [80]
Human skulls is mainly Bone structure an immovable joint
4 0
3 years ago
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