In the first analysis, all of the F1
flies from the students’ crosses have the identical phenotype with respect to body color and wing shape, but the F2
flies have four different phenotypes. Describe how fertilization contributes to this genetic variability.

In school, Brendan has been conditioned to get up from his seat every time he hears the school bell ring.

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One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds, they occupy different niches.

Answer : 900 kg pumpkins

The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell.

D).increasing the pH with in the cell.

Explaination:

Angelica suffers from lupus disease.people with this disease are extremely sensitive to sun light.

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.

the tiles to the correct boxes to complete the pairs.
Match the arteries and veins to their functions...

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

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.