Why is an ecological pyramid is smaller at the top than at the bottom

How does the egg of a flower become fertilized? as soon as the pollen reaches the stigma after the pollen grain descends down the style when the pollen tube grows into the ovule when the seed germinates

Matter is anything that takes up

Describes any situation in which the total number of leukocytes in the circulating blood is less than normal

What does a large-scale mutation affect? A. the nucleotides with either a substitution, deletion or insertion B. sections in the chromosomes C. one or a few nucleotides in the RNA D. one or a few nucleotides in the DNA

If diagnosed with cancer what foods increase the spread of cancer

The majority of water found on Earth is: ice water vapor fresh water salt water

The countercurrent arrangement of the two limbs of the loop of Henle becomes a multiplier of electrolyte concentration due to which other characteristic? A. water permeability of the descending limbB. water impermeability of the ascending limbC.

Which of the following best explains why the latitude of a region influences its climate? A. The latitude of a region determines its proximity to the ocean. B. The latitude of a region determines the landforms present in the area. C.

Erosion occurs naturally but can be made worse by human activities. What types of human activities worsen the rate of soil erosion?

What does rotting and burning biomass emit?