0
Helium is a chemical element with the symbol He and is a colorless, odorless, and tasteless gas. It is the second lightest and second most abundant element in the observable universe. A micropyle, on the other hand, is a small opening in the surface of an ovule through which pollen grains enter for fertilization in plants. It is a specialized structure found in the reproductive organs of plants.
Add your answer:
Earn +20 pts
What are other differences between lithium and helium?
Lithium is a metal, while helium is a noble gas. Lithium has a lower atomic number and is more reactive than helium. Lithium is used in rechargeable batteries, while helium is commonly used in gas balloons and cooling systems.
Do alpha particles and helium atoms have same electrons?
No, alpha particles are helium nuclei composed of two protons and two neutrons with no electrons, while helium atoms have two electrons in addition to the two protons and two neutrons.
What is helium cost per 100g?
The cost of helium can vary depending on location, supplier, and quantity purchased. On average, helium can cost between $0.50 to $1 per 100g. However, prices can fluctuate due to factors like demand, availability, and market conditions.
What element has 2 protons 1 neutron and 2 electrons?
Helium-3 is the element that fits the description you provided. It has 2 protons, 1 neutron, and 2 electrons. Helium-3 is a rare isotope of helium found in very small quantities on Earth.
What type of bond forms between elements with electronegative differences between 0 and 0.3?
A nonpolar covalent bond forms between elements with electronegative differences between 0 and 0.3. In this type of bond, the shared electrons are equally shared between the atoms, leading to a symmetrical distribution of charge.
What is the tiny hole in the seed-coat called?
micropyle
What is the function of the micropyle?
The micropyle opening allows the pollen tube to enter the ovule for fertilization. It absorbs water for germination. It provides for the diffusion of respiratory gases.
Which stage of a butterfly has a micropyle?
During the first stage of the life stage the butterfly has a micropyle. The micropyle is a funnel shaped opening located at the bottom of the egg.
What are the differences between neon and helium?
Neon has 8 more protons and 8 more electrons than helium. It's heavier, but still lighter than air.
Do all seeds to have a hilum and micropyle?
Yes, all seeds have a hilum and a micropyle. The hilum is the scar on the seed where it was attached to the plant, and the micropyle is the small opening in the seed coat through which the pollen tube entered during fertilization.
What is the opening to the ovule of a conifer called?
The micropyle
Is the difference between helium in a jar in helium?
helium in a jar diff from helium atom
What is the tiny hole on the seed-coat?
The tiny hole on the seed coat is called the micropyle. It allows water and gases to enter the seed, aiding in the process of germination.
What are some differences between pop I and pop II stars?
Population I is younger and has more heavy elements. Population II is older and is almost entirely hydrogen and helium.
What is the tiny hole in the seed called?
micropyle
Does micropyle in the ovule help in diffusion of respiratory gases?
yes
What is the ploidy level of the micropyle?
The micropyle is a hole in the seed coat, it is literally nothing. Hence it is not made of cells and has no chromosomes.
