the idea of molecular clock genes has been studied for decades but the hypothesis remains a controversal topic in evolutionary biology. why do you think that is the case?

Option A : the fern transitined from gametophyte generation to sporophyte generation.

The Parker probe.

Explaination:

A spring is a natural discharge point of subterranean water at the surface of the ground or directly into the bed of a stream, lake, or sea. Water that emerges at the surface without a perceptible current is called a seep. Wells are holes excavated to bring water and other underground fluids to the surface.

The image shows a cross-section of land scape.

Answer : 900 kg pumpkins

B)Phosphorus has a larger atomic mass.

As we move right in the periodic table, both atomic number and atomic mass increases. Magnesium comes under S-block elements (Group 2) and Phosphorus comes under P-block elements (Group-15).

Astronomers are able to detect the dimmer star because its gravity causes the bright star to . Astronomers can also spot the dimmer star by observing a phenomenon called a(n) binary.

when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis. Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.

Answer : a).Bar graph.... kind of display would be the best way to represent the data.

The lining of the trachea consists of a type of tissue called pseudostratified (ciliated) columnar epithelium.

Air is thinner at higher altitudes which means there are fewer oxygen molecules per volume of air. This means that when athletes train at these high altitudes, their body produces more red blood cells. These extra blood cells stay in the body for up to 20 days.