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3 years ago

What are the evolutionary relationships of green algae and vascular plant?

1 answer:

6 0

The phylogenetic tree on the right depicts the evolutionary relationships between charophytes and plants. It is thought that the first true plants were derived from a charophyte. ... Chlorophyll a is common to other photosynthetic organisms, but chlorophyll b is shared only by green algae and plants.

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How does oxygen move from the respiratory system to the circulatory

slamgirl [31]

Answer:

D. By diffusion across a capillary wall

Explanation:

D is the best answer because gas exchange takes place in our lungs. Our lungs have alveoli which have a network of tiny blood vessels called capillaries, here the O2 diffuses the capillary wall to enter the bloodstream, and similarly CO2 diffuses out and we exhale it our from our lungs.

8 0

3 years ago

Improved bone regeneration through amniotic membrane loaded with buccal fat pad-derived MSCs as an adjuvant in maxillomandibular

muminat

Mesenchymal stem cells and HAM together may improve bone repair, especially in the horizontal dimension. Additionally, this technology lessens secondary bone resorption and the quantity of collected autogenous bone.

HAM:

Background: Human amniotic membranes (HAMs), a biological membrane with potential for cell therapy, osteogenesis, and healing, have come under the spotlight as a way to improve the results of treating bone abnormalities. The goal of the current study is to clinically evaluate the possibility of HAM loaded with stem cells from the buccal fat pad (BFSCs) as an osteogenic covering for only bone transplants to maxillomandibular bone lesions.
Materials and methods: The current investigation included nine patients with jaw bone abnormalities. Iliac crest bone graft with HAM covering (n = 5) and iliac bone grafts coated with HAM loaded with BFSCs (n = 4) were the two study groups that the patients were divided into. Cone beam computed tomography was carried out for radio morphometric characterization five months after the grafting and before the installation of the implant.
Results: The mean increase in bone width was found to be significantly greater in the HAM + BFSCs group ( $4.42$ ± $1.03$ mm versus $3.07$ ± $0.73$ mm, p < $0.05$ ). Further, the changes in vertical dimension were greater in the HAM + BFSCs group ( $4.66$ ± $1.06$ mm versus $4.14$ ± $1.03$ mm, p > $0.05$ ).

Learn more about HAM here brainly.com/question/25199209

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7 0

2 years ago

How are permineralized fossils formed

matrenka [14]

Process. Permineralization is a type of fossilization involving deposits of minerals within the cells of organisms. Water from the ground, lakes, or oceans seeps into the pores of organic tissue and forms a crystal cast with deposited minerals. Crystals begin to form in the porous cell walls.

3 0

3 years ago

A sample of wood contains 12.5% of its original carbon-14 what is the estimated age of this sample

Jobisdone [24]

The age of the wood would be 17,151 year's old.

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6 0

3 years ago

Which of the following identifies the structural hierarchy that makes up the pulmonary system in order of increasing complexity?

Tems11 [23]

Answer:

B, lung cell, lung tissue, lung, pulmonary system

Explanation:

Lung cells are also called as pleural cells. Lung cells to form lung tissue which then forms the lung and lung and its function forms the pulmonary system. The complexity increases from cell to organ system.

Pulmonary system plays a major role in respiration. Lung cells once damaged are slow to regenerate. Alveoli are the sacs in the lungs that take up the oxygen from the inspirited air and then transfers it to the tissue.

5 0

3 years ago

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