Hummingbirds transfer pollen from one flower to another while feeding. What plant structure contains the pollen?

The rate of primary productivity is equal to the rate of secondary productivity. a. True b. False

What happens during crossing over and what is the significant?

One of the simplest weather forecasting techniques involves examining changes in pressure over time. Which instrument is used to collect this data? A. thermometer B. anemometer C. barometer D. hygrometer

In the early days of the solar system, many planetesimals orbited the Sun. Theory has it that one large planetesimal the size of Mars struck a glancing blow to the molten Earth. How did this event contribute to the formation of the Moon?

Lateral gene transfer is a process by which A - scientists make transgenic organisms. B-organisms within a species exchange genetic information during conjugation C - organisms acquire DNA from a different species.

If a person did not eat for several days, which sequence of events would occur? a. Glycogen stores would be depleted first, then structural proteins, and then stored lipids. b.

Which pair of terms best describes a wooden table? biotic and nonliving biotic and living abiotic and nonliving abiotic and living

Select the correct answer. Which term refers to a fact that naturally occurs in the universe? A. scientific law B. scientific inquiry C. conclusion D. hypothesis

The process of moving water from its source to some place where humans use it, such as homes and farm fields, is called

When Charles Darwin published the Origin of Species, he provided evidence for which of the following concepts related to evolution? (choose all that apply) a. descent with modification as a process for speciation b.