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Ray Of Light [21]
3 years ago
8

Types of placentation found in plants​

Biology
1 answer:
KATRIN_1 [288]3 years ago
6 0

Answer:

There are five types of placentation that occurs in flowering plants i.e. axile, marginal, parietal, basal, superficial placentation.

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The brakes on an automobile become hot when they are used continuously because the:
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The reason as to why the breaks of a vehicle becomes hot when they are continuously used is because of the fact that the kinetic energy that is being used is being converted to a thermal energy, causing the brakes of the vehicle to be hot.

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What does a negative value of change in shoot biomass indicate?
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Biomass is the total mass of a specific organism in the area. If there is a negative value of change in shoot biomass, that mean the mass of the shoot in this period are less than before. This indicate increases in predation/death which reduce the population of the shoot more than its growing rate. The cause could be an increases in predator population or decreases in food/resource.

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3 years ago
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Select the correct statement about osmosis. a. Osmotic equilibrium cannot be reached unless solute concentrations equalize acros
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c. Osmosis is the diffusion of water molecules across a selectively permeable membrane.

Explanation:

Osmosis is the passive transport of water molecules from the region of their higher concentration to that of lower concentration through a semi-permeable membrane. Osmosis does not include the movement of solutes. When two solutions with different concentrations of solutes are separated by a semi-permeable membrane, water moves through the membrane from a hypotonic solution to the hypertonic solution until equilibrium is obtained. This process is called osmosis.

3 0
3 years ago
Is diffusion active or passive transport of particles across the cell membrane?
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The answer to this question is

Is diffusion active or passive transport of particles across the cell membrane?
"Passive Transport"

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4 years ago
A defective Na+/K+ ATPase pump is isolated from a plasma membrane and studied. Careful measurements in the laboratory determine
Paul [167]

Answer:

The defective Na+/K+ ATPase is not able to dephosphorylate itself.

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A defective Na+/K+ ATPase that is able to pick and bind the K+ ions but is not able to shuttle them across the membrane should be defective to achieve its dephosphorylated form. Without releasing phosphate, the affinity of the pump for K+ ions is not reduced and the pump would not be able to release them to the opposite side of the membrane.  

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3 years ago
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