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evablogger [386]
2 years ago
7

What is heartwood !???????

Biology
1 answer:
andreyandreev [35.5K]2 years ago
3 0
Nonliving central wood of a tree or woody plant usually harder and darker than a sapwood

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Đột biến số lượng nhiễm sắc thể là gì
iren2701 [21]

Answer:

Là những biến đổi số lượng xảy ra ở một hoặc một số cặp nhiễm sắc thể hoặc toàn bộ nhiễm sắc thể của mỗi loài. Đột biến nhiễm sắc thể bao gồm 2 loại:

+ Đột biến cấu trúc nhiễm sắc thể.

+ Đột biến số lượng nhiễm sắc thể.

Explanation:

4 0
2 years ago
A pine forest on the coast is destroyed by a tsunami. After the tsunami small plants began to grow followed by some small trees
kompoz [17]
The answer is disturbance (biological agent) It disturbed the forest coast, which then led the forest to have a low resilience rate and grew back after a long period of time. but instead of pine, there was oak trees.
7 0
3 years ago
There are twenty amino acids in living organisms. Ten of these are referred to as essential amino acids. Why are they called ess
Dahasolnce [82]

Answer:

B

Explanation:

3 0
3 years ago
Read 2 more answers
slit2 overexpression results in increased microvessel density and lesion size in mice with induced endometriosis.
solmaris [256]

The overexpression results in increased micro vessel density and lesion size in mice with induced endometriosis.

Endometriosis is a benign gynecological disorder.

  • it's far characterized through the ectopic presence of endometrial glands and stroma out of doors of the uterine hollow space and is carefully related to dysmenorrhea, pelvic pain, and subfertility.
  • In endometriosis, the involvement of vascular endothelial mobile growth issue (VEGF) and different angiogenic mediators has long been recognized endometriotic angiogenesis entails numerous pathways and the blockade of simply one single pathway won't effectively suppress Endometriosis
  • Slit is a secretory glycoprotein which include 3 members, Slit1, Slit2, and Slit3, and become at first found to be secreted repellents in axon steerage and neuronal migration It has been shown to be an endogenously available inhibitor of leukocyte chemotaxis.
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To know more about Endometriosis  visit :

brainly.com/question/10381022

#SPJ4

6 0
1 year ago
What type of polymer is made by bonding an alkene to one or more alkanes or alkenes? A. di-polymers B. multi-polymers C. additio
olganol [36]
Hello! 

The type of polymer that is made by bonding an alkene to one or more alkanes or alkenes is called addition polymer

Addition polymers are those whose polymerization reaction doesn't produce low molecular mass compounds but the bonding of molecules one after the other. Such a reaction implies that there is a rupture in the bonding between monomers (the building blocks of the polymer) to allow the formation of a chain. 

Bonding an alkene to one or more alkanes or alkenes is an example of an addition polymerization. 

Have a nice day!
6 0
3 years ago
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