What is the trophic level of the robin in this food chain? oak tree → caterpillar → robin → fox?

How does hydrogen bonds between water molecules occur

Cell membrane: cell::

What is the name for millions of stars held together by gravity A. Supernova. B. Constellation. C. Solar system. D. Galaxy.

What is the brain waves of a guy who is talking to their crush? And is it the same as a girls?

Your friend just spent a day at the beach but forgot to use sunscreen. That evening, she complains of a great deal of pain, and you notice that her skin is red and beginning to form large blisters. What type of burn has she suffered?

What is the illness where you get: blurred vision, shaky hands, tired, weak, pale, blood glucose high, stomach ache, low insulin, low appetite, jaundice, no urobilin in urine, not urobilinogen, excess cortisol secretion, high level of bilirubin,

Which of the following is an accessory organ of the integumentary system? a. corium b. sebaceous gland c. thyroid gland d. epidermis

What can people do to stay safe before and during a rainstorm with high winds and heavy rains?

The female sex cells or eggs are produced by

List three solutions that scientists are suggesting to solve the problems caused by monoculture farming