Which of these can be used to see how climate has changed over time? A. ice cores B. tree rings C. both of these

One reason vascular plants are larger than non vascular plants

Both birds and mammals have four-chambered hearts. but birds are more closely related to crocodiles, which have three-chambered hearts, than they are to mammals. the correct interpretation of these observations is that:

According to scientists why doesn't the greenhouse effect warm mars atmosphere

What are the three common types of lung cancer

Describe the ecological restoration of a tropical dry forest in costa rica

Which of the following is not conducive to new approaches to wildlife conservation and management? A) historical range of abundance B) estimation of the probability of extinction based on historical numbers C) use of age-structure information D)

If the enviroment changes what must a species do to survive A. migrate B. adapt C. change environment back D. species can not survive a change

What is the role of iodine in the gram stain process?

1. How far have we been able to drill through Earth's crust?

About if someone injury how you can take care it's about science