Scientific explanations must always be based on

Which structure is not unique to plant cells? chloroplast central vacuole cell wall nucleus

Pros and cons of being a microbiologist (need least at 3 examples for each)

One of the three main functions of stems is to A. carry out photosynthesis. B. carry water and nutrients between roots and leaves. C. store carbohydrates. D. store water.

Which of the following came first in the scientific study of living organisms? A. light microscope B. Cell Theory C. electron microscope D. model of DNA

What percentage of fish species live in freshwater ecosystems? A. 30% B. 40% C. 45% D. 35%

Name some proteins that are made at ribosomes.

Which describes organs in the human body? the largest living unit a group of cells that work together to perform a common function a group of tissues that work together to perform a common function the smallest living unit

Horses and donkeys can breed and produce sterile offspring known as mules. Horses and donkeys remain separate species because of this hybrid sterility, which is: 1. an allopatric barrier to reproduction. 2. a postzygotic barrier to reproduction. 3.

A group of cells working together is known as what

What do amoeba proteus, dinoflagellate, and euglena viridis have in common? a. they all can move and make their own food b. they all can move and use eye spot to locate food c. they all can move and be heterotrophic d.