Which is one function of steroids?

waterproofing leaves and feathers

insulating and protecting bones and organs

serving as chemical messengers

providing energy storage

Under normal conditions, why would you not find trachodon fossils with woolly mammoth fossils?

A 28-year-old female presents with severe chest pain and shortness of breath. She is diagnosed with pulmonary embolism, which most likely originated from the:a. Left ventricleb. Systemic arteriesc. Deep veins of the legd.

Which statement would least likely be used to describe variation? O Variations are inherited differences between individuals of the same species. O Variations that decrease reproductive success are more likely to be passed on.

Which of the following is a biological catalyst? a). RNA b). Enzymes c). Antibody d). Steroid

Which is an example of population density? Question 19 options: country with a large population maximum number of wolves in a forest total number of alligators in Florida two jaguars per thousand hectares

What might happen to an ecological pyramid of numbers in a forest ecosystem if most of the deer were killed due to hunting by people and disease?

Which of the following is a true statement about cellular respiration? Group of answer choices Cellular respiration occurs only in plant cells. Cellular respiration occurs only in animal cells.

1. The first organisms on Earth were mostly likely

If the probability of an offspring is 50% homozygous dominant for black coat color and 50% heterozygous dominant for black coat color what is the ratio?

What did Thomson contribute to the model of the atom? A. The neutron B. The electron cloud C. The electron D. The nucleus