What two organ systems work together to allow the body to move? Your bones and muscles work together to support and move your body. Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide. Your digestive system absorbs water and nutrients from the food you eat. When many organ […]

Do serotonin and dopamine work together? The relationship between dopamine and serotonin There are strong links between the serotonin and dopamine systems, both structurally and in function. In some cases, serotonin appears to inhibit dopamine production, which means that low levels of serotonin can lead to an overproduction of dopamine. What does dopamine do in […]

What is the function of active transport in moving? Active transport enables cells to move some materials against a concentration gradient. For example, cell can concentrate substances such as sodium and potassium ions in particular locations. What is active transport in biology class 9? “Active Transport is defined as a process that involves the movement […]

What happens if a lizard gets too cold? “When air temperatures drop below a critical limit, lizards lose the ability to move. Most commonly, the lowest daily temperatures occur at night while many diurnal (day-active) lizards are asleep,” lead study author and biologist James Stroud, a postdoctoral research associate at Washington University in St. How […]

What is the main reasoning behind applying the principle of parsimony when making a phylogenetic trees? When applied to reconstructing phylogeny, applying the principle of parsimony means that systematists select the tree (hypothesis) that minimizes the number of times that a character state changes. For example, it makes more sense for hair to have evolved […]

What percentage of human genome is protein coding? 1 percent How many protein coding genes are in the human genome? It includes almost 5,000 genes that haven’t previously been spotted — among them nearly 1,200 that carry instructions for making proteins. And the overall tally of more than 21,000 protein-coding genes is a substantial jump […]

What body system is responsible for control of other organs? The nervous system controls various organs of the body directly. The brain also receives information from many organs of the body and adjusts signals to these organs to maintain proper functioning. The skeletal system makes up the framework of the body and allows us to […]

When one base in a DNA molecule is replaced by another base it is called? ​Substitution Substitution is a type of mutation where one base pair is replaced by a different base pair. What would happen if there was a substitution of one base for another in one of the mRNA codons? What would happen […]

What are the membranes and compartments in a chloroplast called? Both chloroplasts and photosynthetic bacteria contain grana, neat stacks of flattened sac-shaped membrane compartments called thylakoids. How are the membranes inside the chloroplast involved in photosynthesis? In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and […]

What evidence might prove that soil creep is occurring? Creep is indicated by curved tree trunks, bent fences or retaining walls, tilted poles or fences, and small soil ripples or ridges. What type of erosion is creep? Creep, in geology, slow downslope movement of particles that occurs on every slope covered with loose, weathered material. […]