Biology, 26.02.2020 02:44 alliemeade1
_ The cell walls of bacteria, fungi, and plant cells and the extracellular matrix 0119animal cells are all external to the plasma membrane. Which of the following icharacteristic common to all of these extracellular structures?A. They must block water and small molecules to regulate the exchange of matterand energy with their environment. B. They must permit information transfer between the cell's cytoplasm and thenucleus. C. They must provide a rigid structure that maintains an appropriate ratio of cellsurface area to volume. D. They are constructed of polymers that are synthesized in the cytoplasm andthen transported out of the cell. E. They are composed of a mixture of lipids and nucleotides
Answers: 1
Biology, 21.06.2019 19:00
Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria
Answers: 2
Biology, 22.06.2019 02:10
Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems
Answers: 2
Biology, 22.06.2019 09:10
Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.
Answers: 1
Biology, 22.06.2019 16:40
Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind
Answers: 2
_ The cell walls of bacteria, fungi, and plant cells and the extracellular matrix 0119animal cells a...
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