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3 years ago

What is a flower, how is it fertilized and why is it colorful/smell nice?

Biology

1 answer:

PilotLPTM [1.2K]3 years ago

7 0

Answer:

flower is the part of a plant that is bright in colour and provides the pollen that is moved from plant to plant for pollination

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The allosteric inhibitory effector BPG binds to both the A form and the F form. Both forms show a lower affinity for O2 in the p

Dmitry [639]

Answer:

HbA; lowers

Explanation:

The BPG in our blood stands for Bisphosphoglyceric acid. It is known as by its name as 2,3-Bisphosphoglyceric acid. It is present in our blood in the red blood cells. It binds with more affinity towards the de-oxygenated hemoglobin as compared to the oxygenated hemoglobin.

Hemoglobin in blood delivers oxygen to our tissues moire efficiently. It is abbreviated as Hb.

Thus BPG binds more tightly towards HbA or adult hemoblobin and which lowers the affinity for oxygen.

5 0

3 years ago

In the development of a cancer cell, the formation of new blood vessels is called

pantera1 [17]

In the development of a cancer cell, the formation of new blood vessels is called Angiogenesis, option B. When tumors are present in the body, circulation and the distribution of nutrients in the body is altered; thus, resulting in different kinds of disorders associated with cancer. With the presence of cancer, these tumors need more nutrients to spread and grow, which results in the formation of more blood vessels.

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3 years ago

Rabbits, turtles, fish, humans, and whales all share certain characteristics but also differ from each other. All of these speci

Delvig [45]

The levels of organisation are

Domain: Eukarya

Kingdom Animalia

Phylum :Chordata

Explanation:

They all share these levels of organisation because;

for the Domain Eukarya, they have;

→multi-cellular cells containing nucleus; and other membrane bound organelle.e.g Mitochondrial.

→their DNA located in the nucleus packaged as linear chromosomes bounded by histone proteins.

→mode of reproduction which is sexual.

They share Kingdom Animalia because;

→they have multi-cellular, specialised cells, bounded by plasma membranes.

→they have specialized tissues, organs, and system.

→they all undergo heterotrophic mode of nutrition as evident in the question 'that they must consume plants and animals as source of energy'

→they exchanged communication by nervous ssytem and 

→ use homeostatic mechanisms to regulate water balance of the body through the kidney.

→Humans,Rabbits,and whales are VIVIPAROUS; they give birth to young ones alive.

→Most fishes lay eggs to reproduce, they are said to be Ovoviviparous.

They belong to phylum Chordata because ;

→they all have noto chord; which serve as template for axial skeleton.

dorsal hollow nerve cord -template for the brain and spinal cord

→pharyngeal slits- templates for gill aches in bony fishes and components of inner ear in land animals.

→ tail length varies in these organisms.

8 0

3 years ago

Why are bacteria and archaea placed in seprate kingdoms

Bogdan [553]

Archaea have more complex RNA polymerases than Bacteria, similar to Eucarya.

5 0

3 years ago

Describe how Stella’s view of these plant cells and their parts changed as she transitioned through the three levels of magnific

mafiozo [28]

Answer:

The three different views show different level of magnification.

Explanation:

At the first level the structure of plant cell is not clear however upon more magification the view is clarified and the upper epidermis and the lower epidermis are both visible in the third view which is the most magnified. The parts of leaf cell are visible the most evident of them is the epidermis which protects the outside of the cell and also Palisade Mesophyll is visible which helps in photosynthesis.

3 0

3 years ago