1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bezimeni [28]
3 years ago
13

Plz help I will mark you brainlist plz ​

Biology
1 answer:
Olin [163]3 years ago
6 0

Explanation:

i think the answer is compounds

You might be interested in
Reproductive structures in which spores form are known as
Inessa [10]
<span>d. sporangia. is a structure that can be found in unicellular and multicellular organisms that encloses spores. Organisms that form sporangia in their life cycles are plants, fungi and algae among others.</span>
6 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
Ecosystem is the ecosystem of a stream or river.
aliya0001 [1]

Answer:its a ijdjd

Explanation:

8 0
3 years ago
What is 96,989,200 written in scientific notation?
olasank [31]

I think the answer is 9.69892×10^7

8 0
4 years ago
True or false: The parachute on a dandelion seed makes it easily transported by animals.
Marat540 [252]

Answer:

False

Explanation:

The parachute on a dandelion makes it easily transportable by AIR.

The parachute helps in creating air resistance, and helps the dandelion to glide through the air. The presence of the parachute also plays an important role in the dispersion of its seeds.

8 0
3 years ago
Other questions:
  • What is special about nitrogen, and what is its main function in the atmosphere
    13·1 answer
  • Help mee plzzzzzz THERE IS A ATTACHMENT SO WAIT AT LEAST 30 SECONDS PLZZZZ
    5·1 answer
  • How does a leaf take in water
    7·2 answers
  • Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. In addi
    6·1 answer
  • When a gummy bear shrinks, is that considered hypertonic or hypotonic?
    15·1 answer
  • Taxonomy is the science that helps us understand in god's creation
    7·1 answer
  • 23. Describe two costs and two benefits of sexual reproduction.
    9·1 answer
  • In this lab, you are only looking at eukaryotic cells, plants are one type of eukaryote that you will be looking at. What are 2
    7·1 answer
  • What is the primary function of ground tissue?
    10·2 answers
  • The animal which is harmed by the other one but not killed immediately:
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!