Disadvantage of external fertilization?

A paramecium is a single-celled, freshwater protist that lacks a cell wall but contains a contractile vacuole.

A healthy cell spends most of its lifetime in

1. In an ecosystem, there are many factors that affect how many organisms can survive there. Which of the following is one of those factors? A. availability of water B. number of times humans have seen the area C. color of flowering plants D.

What is the definition of vesicle

Identify a scenario in which a model could be used in a scientific investigation o better understand a concept

If a population is growing at 2% how long will it take their population to double

What problem does distilled water in a patient's bloodstream create?

What does it mean when we say that DNA replication is semiconservative

Which of the statements are true? Yeast cells that produce more unsaturated fatty acids than saturated fatty acids in response to cold have greater cold tolerance.

Describe the technique used to care for instrumentation and supplies that have been exposed to the inside of the intestinal tract.