Answer the following question given this paragraph: 4.6 Connections between Cells and Cellular Activities Animal cells communicate via their extracellular matrices and are connected to each other via tight junctions, desmosomes, and gap junctions. Plant cells are connected and communicate with each other via plasmodesmata. When protein receptors on the surface of the plasma membrane of an animal cell bind to a substance in the extracellular matrix, a chain of reactions begins that changes activities taking place within the cell. Plasmodesmata are channels between adjacent plant cells, while gap junctions are channels between adjacent animal cells. However, their structures are quite different. A tight junction is a watertight seal between two adjacent cells, while a desmosome acts like a spot weld. Q: Plasmodesmata and gap junctions are channels between adjacent cells of what respective types? Choices: - healthy and sick - new and old - plant and fungus - plant and animal A:
plant and animal
(Question)
Answer the following question given this paragraph: The somatic nervous system also controls some unconscious movements, called reflexes. A reflex is a very rapid motor response that is not directed by the brain. In a reflex, nerve impulses travel to and from the spinal cord in a reflex arc , like the one in Figure below . In this example, the person jerks his hand away from the flame without any conscious thought. It happens unconsciously because the nerve impulses bypass the brain. Q: What is the term for the unconscious movements controlled by the somatic nervous system? Choices: - senses - mechanisms - tremors - reflexes A:
(Answer)
reflexes
Ques: Answer the following question given this paragraph: Bacteria are the most diverse and abundant group of organisms on Earth. They live in almost all environments. They are found in the ocean, the soil, and the intestines of animals. They are even found in rocks deep below Earth's surface. Any surface that has not been sterilized is likely to be covered with bacteria. The total number of bacteria in the world is amazing. It's estimated to be 5 10 30 , or five million trillion. You have more bacteria in and on your body than you have body cells!. Q: What is the most diverse and abundant group of organisms on earth, numbering in the millions of trillions? Choices: - viruses - pests - pathogens - bacteria A:
Ans: bacteria
(Q).
Answer the following question given this paragraph: A combination reaction makes a new substance from more than one reactant; a redox reaction rearranges electrons. Not all combination reactions are redox reactions, and not all redox reactions are combination reactions. Q: A redox reaction rearranges what subatomic particles? Choices: - neutrons - water molecules - protons - electrons A:
(A).
electrons
Ques:Answer the following question given this paragraph: Biochemistry is the study of chemical processes that occur in living things. Research may cover basic cellular processes up to understanding disease states so better treatments can be developed. Q: What is the study of chemical processes that occur in living things? Choices: - phrenology - physiology - cardiology - biochemistry A:

Ans:biochemistry
Answer the following question given this paragraph: 10.1 | Cloning and Genetic Engineering By the end of this section, you will be able to: Explain the basic techniques used to manipulate genetic material Explain molecular and reproductive cloning Biotechnology is the use of artificial methods to modify the genetic material of living organisms or cells to produce novel compounds or to perform new functions. Biotechnology has been used for improving livestock and crops since the beginning of agriculture through selective breeding. Since the discovery of the structure of DNA in 1953, and particularly since the development of tools and methods to manipulate DNA in the 1970s, biotechnology has become synonymous with the manipulation of organisms' DNA at the molecular level. The primary applications of this technology are in medicine (for the production of vaccines and antibiotics) and in agriculture (for the genetic modification of crops). Biotechnology also has many industrial applications, such as fermentation, the treatment of oil spills, and the production of biofuels, as well as many household applications such as the use of enzymes in laundry detergent. Q: The primary application of biotechnology is in what field? Choices: - physics - chemistry - psychology - medicine A:
medicine