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erik [133]
3 years ago
11

What is the basic building block of life

Biology
2 answers:
Westkost [7]3 years ago
7 0

I'm pretty sure it's Cells

yaroslaw [1]3 years ago
7 0

Cells are the basic building block of life.

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An ecologist notes an increase in algae growth in a river adjacent to a farm that uses fertilizers. what can she infer from this
qwelly [4]
<span>One can infer from this situation the following things: first, the fertilizers used in the farm eventually get to the adjacent river. Second, these fertilizers may be providing some benefitial conditions to the algae, allowing it to grow exponentially and strongly.</span>
8 0
3 years ago
Define the 3 signals for activation and the 3 outcomes of the complement system.\
sp2606 [1]
* More than 40 proteins and glycoproteins involved in the complement system are synthesized by the liver, macrophages, epithelial cells, they are present in the blood in plasmatic form, membrane, some have an enzymatic activity, regulator or membrane receptorThese are elements of the humoral innate immune response, they fight infections, purify immune complexes and apoptotic bodies.
<span>There are indeed three ways to activate the complement:</span>
Classical pathway: Activated by Immunoglobulins in immune complexes, aggregated Immunoglobulins, DNA, CRP, apoptotic bodies .......it involves nine fractions, starting with C1, then C4, C2, C3, to form a classical C5 convertase, then, activation of C5, C6, C7, C8, C9.

Alternative pathway: activated by polysaccharides (bacterial endotoxin), vascular wall poor in sialic acid, aggregated IgE ...C3b like is the first component in the alternate channel cascade, it will create an amplification loop, and form an alternative C5 convertase.

Lecithin pathway: Activated by mannose, fucose (carbohydrate of microorganisms)The first component is the complex MBL / MASP1 / MASP2: "mannose-binding protein": works according to the same principle as the complex C1 of the classical way (MASP2 cleaves the C4 and the rest of the cascade is equivalent to that of the classical way).

the three ways have the same outcome: A C5 convertase (formed by one of the pathways) cleaves C5 into C5a and C5b: C5b is deposited far from other fractions on the antigenic surface. The fixation of C5b in the cell is followed by that of C6, C7, C8, and C9 (9 molecules of C9): formation of the membrane attack complex (MAC) ==> Death of the cell by osmotic shock
8 0
3 years ago
The ovaries are small organs that produce egg cells in females. Removal of
nlexa [21]

Answer:

B

Explanation:

if you were a female and had this done to you, you would then understand.

3 0
3 years ago
What is the purpose of the replication
stepan [7]

The purpose of the replication bubble is that it forms where replication is taking place (option A).

<h3>What is replication?</h3>

Replication is the process of producing replicas or duplicate of DNA or RNA molecules.

DNA replication is a very important process that occurs prior to cell division. During replication, the double stranded DNA is separated into two single strands.

Each copy called the leading and lagging strand becomes the template for the synthesis of new DNA strands.

However, a structure called replication bubble is a formed during the separation of two DNA strands by the helicase enzymes.

Therefore, the purpose of the replication bubble is that it forms where replication is taking place.

Learn more about replication at: brainly.com/question/16464230

#SPJ1

8 0
1 year ago
A red blood cell will undergo crenation in _____
miss Akunina [59]
A red blood cell<span> placed in a hypertonic solution </span>will<span> shrink in a process called</span>crenation<span>. </span>A red blood cell<span> placed in a hypotonic solution </span>will<span> swell and potentially burst in a process called hemolysis. ... Indicate whether </span>crenation<span>, hemolysis, or neither </span>will<span> occur.</span>

5 0
3 years ago
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