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What structure transports sperm in the ovule in flowering plants?
The pollen tube is a structure designed to help a particle of pollen, the male side of the plant fertilization process, to access the egg cell in the female part of the plant. The egg cells are typically protected by cell walls and shells designed to keep them in place and protect them from outside elements. Pollen particles create pollen tubes to reach through these walls and access the egg cell.
Who discovered particle movement in water?
The movement of particles in water was first observed by the botanist Robert Brown in 1827, a phenomenon now known as Brownian motion. Brown noticed pollen grains jiggling in water under a microscope, which was later explained by the random collisions of water molecules with the pollen particles.
Are all particles the same size?
No, particles can vary in size. They can range from atoms, which are extremely small, to larger particles like dust, pollen, or sand. The size of a particle can have various effects on its properties and behavior.
What bee structure observes pollen grains?
The bee sees pollen with its eyes. It carries pollen because the pollen stick to the hind legs!
What is pollen assemblage?
the mixture of pollen and spores.
What structure transports sperm in the ovule in flowering plants?
The pollen tube is a structure designed to help a particle of pollen, the male side of the plant fertilization process, to access the egg cell in the female part of the plant. The egg cells are typically protected by cell walls and shells designed to keep them in place and protect them from outside elements. Pollen particles create pollen tubes to reach through these walls and access the egg cell.
What is an air particle?
An air particle is a small piece of matter found in the air, such as dust, pollen, or smoke. These particles can be solid or liquid and can affect air quality and human health when present in high concentrations.
What would particle-laden be like?
Particle-laden refers to the presence of particles within a substance or environment. This can have various implications, such as affecting visibility, creating respiratory hazards, or influencing the behavior of fluids. For example, particle-laden air may contain dust, pollen, or pollutants, while a particle-laden liquid could have suspended solids or sediments.
Do mute people sneeze?
yes, they sneeze because it is just the expansion & sudden contraction forcing the air out. it happens when a dust particle or a pollen grain enters the lungs
Is unfiltered air homogeneous or heterogeneous?
Unfiltered air is heterogeneous because it is composed of a mixture of different gases, particles, and possibly microorganisms. This means that the components are not uniformly distributed throughout the air.
Who discovered particle movement in water?
The movement of particles in water was first observed by the botanist Robert Brown in 1827, a phenomenon now known as Brownian motion. Brown noticed pollen grains jiggling in water under a microscope, which was later explained by the random collisions of water molecules with the pollen particles.
What is the function of pollen grains?
Matured pollen grains contained sperm cells. When Pollen grains are sticky, you have pollen. Pollen grains are contained in the pollen sac, with the purpose of helping plants reproduce.
What is another sentence with the word pollen?
I hate pollen! Pollen is annoying!!
What is pollen rate?
There is no such sense of a pollen "rate," but there is of a pollen count. Which means the average pollen grains in a cubic meter!
What is the function of the pollen sacs in a flower?
the function of the pollen sac is to produce pollen (pollen grains). The pollen sac is the microsporangium of a seed plant in which pollen is produced. Most plants except coniferous plants contain four (4) pollen sacs.
Are all particles the same size?
No, particles can vary in size. They can range from atoms, which are extremely small, to larger particles like dust, pollen, or sand. The size of a particle can have various effects on its properties and behavior.
Is the average number of pollen grains in a cubic meter of air called the pollen rate?
No, the average number of pollen grains in a cubic meter of air is typically referred to as pollen concentration or pollen count, not pollen rate. The pollen rate could refer to the speed at which pollen is released or spread in the air.
