Based on the graph below what can you infer about the availability of food and the variations in the types of beaks birds that live in this area may have? Food Availability Before Changing
Climate Conditions
Amount of Food
Types of Food
Insects
Berries
Nuts
Nectar
Time (50 Years Before brought
Seeds

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .