Q: What large organelle comprised of cup-shaped discs is found close to the nucleus of the cell, where it modifies proteins that have been delivered in transport vesicles? Read this paragraph and choose the correct option from the provided answers: The Golgi apparatus is a large organelle that is usually made up of five to eight cup-shaped, membrane-covered discs called cisternae, as shown in Figure above . The cisternae look a bit like a stack of deflated balloons. The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell. The Golgi apparatus is found close to the nucleus of the cell, where it modifies proteins that have been delivered in transport vesicles from the RER. It is also involved in the transport of lipids around the cell. Pieces of the Golgi membrane pinch off to form vesicles that transport molecules around the cell. The Golgi apparatus can be thought of as similar to a post office; it packages and labels "items" and then sends them to different parts of the cell. Both plant and animal cells have a Golgi apparatus. Plant cells can have up to several hundred Golgi stacks scattered throughout the cytoplasm. In plants, the Golgi apparatus contains enzymes that synthesize some of the cell wall polysaccharides. Choices: - mitochondria - ribosome - chloroplast - golgi apparatus A:
golgi apparatus

Q: Which germ layers are essential for animal embryos to grow and develop into a body? Read this paragraph and choose the correct option from the provided answers: The three germ layers are the endoderm, the ectoderm, and the mesoderm. Cells in each germ layer differentiate into tissues and embryonic organs. The ectoderm gives rise to the nervous system and the epidermis, among other tissues. The mesoderm gives rise to the muscle cells and connective tissue in the body. The endoderm gives rise to the gut and many internal organs. Organogenesis Gastrulation leads to the formation of the three germ layers that give rise during further development to the different organs in the animal body. This process is called organogenesis. Organs develop from the germ layers through the process of differentiation. During differentiation, the embryonic stem cells express specific sets of genes that will determine their ultimate cell type. For example, some cells in the ectoderm will express the genes specific to skin cells. As a result, these cells will take on the shape and characteristics of epidermal cells. The process of differentiation is regulated by location-specific chemical signals from the cell's embryonic environment that sets in play a cascade of events that regulates gene expression. Choices: - histone and melatonin - keratinocytes , ectoderm , mesoderm - cytoplasm and chloroplasm - endoderm, ectoderm, mesoderm A:
endoderm, ectoderm, mesoderm

Q: Q: What is the most important characteristic of a homogeneous mixture? Read this paragraph and choose the correct option from the provided answers: A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. The salt water described above is homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample. Often it is easy to confuse a homogeneous mixture with a pure substance because they are both uniform. The difference is that the composition of the substance is always the same. The amount of salt in the salt water can vary from one sample to another. All solutions would be considered homogeneous because the dissolved material is present in the same amount throughout the solution. Choices: - very reactive - high density - nonreactive - uniform composition throughout A:
A: uniform composition throughout

Question: Q: These microorganisms are abundant in the human digestive track and serve many roles. what are they? Read this paragraph and choose the correct option from the provided answers: Bacteria provide vital ecosystem services. They are important decomposers. They are also needed for the carbon and nitrogen cycles. There are billions of bacteria inside the human intestines. They help digest food, make vitamins, and play other important roles. Humans also use bacteria in many other ways, including:. Choices: - antioxidants - pathogens - tumors - bacteria A:
Answer: bacteria

*Question*
Q: Conifers are the dominant phylum of gymnosperms, with the most variety of species. most are tall trees that usually bear scale-like or needle-like leaves. the thin shape of the needles and their waxy cuticle limits water loss through this? Read this paragraph and choose the correct option from the provided answers: Conifers Conifers are the dominant phylum of gymnosperms, with the most variety of species. Most are tall trees that usually bear scale-like or needle-like leaves. The thin shape of the needles and their waxy cuticle limits water loss through transpiration. Snow slides easily off needle-shaped leaves, keeping the load light and decreasing breaking of branches. These adaptations to cold and dry weather explain the predominance of conifers at high altitudes and in cold climates. Conifers include familiar evergreen trees, such as pines, spruces, firs, cedars, sequoias, and yews (Figure 14.20). A few species are deciduous and lose their leaves all at once in fall. The European larch and the tamarack are examples of deciduous conifers. Many coniferous trees are harvested for paper pulp and timber. The wood of conifers is more primitive than the wood of angiosperms; it contains tracheids, but no vessel elements, and is referred to as "soft wood. Choices: - evaporation - transportation - sedimentation - transpiration A:
**Answer**
transpiration

(Question)
Q: Why do players with more mass often have a larger impact in football? Read this paragraph and choose the correct option from the provided answers: Figure 28.18 Momentum is an important concept for these football players from the University of California at Berkeley and the University of California at Davis. Players with more mass often have a larger impact because their momentum is larger. For objects moving at relativistic speeds, the effect is even greater. (credit: John Martinez Pavliga). Choices: - potential energy is lower - kinetic energy is lower - Velocity is larger - momentum is larger A:
(Answer)
momentum is larger