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zloy xaker [14]
3 years ago
13

Suggest why mangrove roots may have difficulty in carrying out active transport?​

Biology
1 answer:
sergejj [24]3 years ago
5 0

Answer:

Thực vật ngập mặn hay còn gọi cây ngập mặn là các loại cây gỗ và cây bụi sống trong các vùng nước mặn ven biển trong vùng nhiệt đới và cận nhiệt đới, chủ yếu giữa vĩ độ 25° Bắc và 25° Nam. Các độ mặn khác nhau tạo ra nhiều loài thay đổi từ nước lợ đến nước mặn (30 đến 40 ppt), đến các môi trường có độ mặn lớn hơn gấp 2 lần độ mặn nước biển (đến 90 ppt), tại đây hàm lượng muối cô đặc bởi sự bốc hơi.[1][2]

Có một số loài cây gỗ và cây bụi thích nghi với môi trường nước mặn. Không phải tất cả các loài đều thích nghi, mặc dù thuật ngữ "thực vật ngập mặn" có thể được dùng để chỉ tất cả chúng, hoặc theo nghĩa hẹp hơn, nó chỉ dùng cho họ thực vật ngập mặn là Rhizophoraceae (họ Đước), hoặc đặc biệt hơn là chi Rhizophora.

Thực vật ngập mặn hình thành một môi trường sống nước mặn của rừng cây thân gỗ và rừng cây bụi hay còn gọi là rừng ngập mặn.[3] Rừng ngập mặn thường phân bố ở vùng ven biển tích tụ các trầm tích hạt mịn và chúng có vai trò bảo vệ các vùng đất bởi tác động của sóng năng lượng cao. Có thể gặp chúng ở các cửa sông và dọc theo các bờ biển thông thoáng. Thực vật ngập mặn chiếm khoảng 3/4 bờ biển nhiệt đới.[2]

Explanation:

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Consider a population of snowshoe hares in Montana. Their fur color changes in response to changes in day length. During the lon
Basile [38]

Answer:

Option (C).

Explanation:

Camouflage may be defined as the change in the coloration and illumination that are generally used by the animals to conceal themselves from their predator. Camouflage can be done according to the environment or their prey.

Snowshoe horse color changes as described in the question. The mutation in the hares that causes change in color according to the temperatures will be more reproductive advantage in their environment rather change in the day length.

Thus, the correct answer is option (C).

5 0
3 years ago
Can the work output of an engine be greater than the source of energy? A. yes, sometimes B. yes, always C. no, sometimes D. no,
ad-work [718]

no never is your answer

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7 0
3 years ago
What must happen to pyruvate before it can enter the kreb’s cycle? explain.
elena-s [515]

i think that before the Krebs cycle begins, pyruvic acid, which has three carbon atoms, is split apart and combined with an enzyme known as CoA.

4 0
3 years ago
Read 2 more answers
Proteins that are involved in packaging the eukaryotic chromosome into "beads" called __________ are __________.
Brilliant_brown [7]
<span>Proteins that are involved in the packaging of eukaryotic chromosome into "beads" called nucleosome are histones.</span>

 A nucleosome is a segment of DNA wound in sequence around eight proteins called histones. Together the DNA and the histones form  "beads"
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5 0
4 years ago
Where do the branches of the bronchial tree ultimately end? 2. list the steps of the pulmonary circuit of the cardiovascular sys
Aneli [31]
1. The branches of the bronchial tree ultimately ends at the alveoli.
Bronchial tree consist of bronchi, bronchioles, and alveoli. Bronchi are formed as the lower part of the trachea divides into two tubes. Bronchioles are smaller tube divisions of the bronchi. It walls contain smooth muscle and no cartilage. Alveoli are tiny ends of the alveolar ducts, which functions as the site for gaseous exchange. 

2. Blood flows from the left atrium; mitral (bicuspid valves), the left ventricle, aortic valve, aorta, veins and heart, right side of the heart, superior and inferior vena cavae, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary trunk, pulmonary artery, lungs, pulmonary veins, then back to the heart...

3. Arteries and the veins differ in structures and they way they functions; Arteries carry oxygenated blood away from the heart to the body (except pulmonary artery) while veins carry deoxygenated blood back from the body to the heart (except pulmonary veins). A structural differences includes; the veins contain valves while arteries lack. Arteries have narrow lumen while veins have wide lumen. Lastly, blood carried by veins has higher pressure compared to blood carried in vessels.

4. The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and the bronchioles. Blood moves in and out of the lungs throgh the pulmonary arteries and veins that connect to the heart.

5. The cartilage rings of the trachea
They are strong but flexible tissues which support the trachea or the windpipe while still allowing it to move and flex during breathing. Additionally these cartilage rings are C-shaped to provide room for the esophagus, which lies along the back side of the trachea.

6. Functions of the larynx includes;
To protect the airway from choking on material in the throat
to regulate the flow of air into our lungs
The production of sounds used for speech 
Larynx is part of the respiratory system and is located between the pharynx and the trachea. Humans use larynx to breathe, talk and swallow. 

7. Structures that make up the pathway of air through the respiratory system starting with the external nares; We start with; External nares, nasal cavity, internal nares, nasopharynx, laryngopharynx,oropharynx, larynx, trachea, primary bronchus, secondary bronchus, tertiary bronchus, bronchiole, terminal bronchiole, respiratory bronchiole, alveolar duct, alveolar sac and alveolus. 
6 0
3 years ago
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