Answer the following question given this paragraph: Both alpha and beta decay change the number of protons in an atom's nucleus, thereby changing the atom to a different element. In alpha decay, the nucleus loses two protons. In beta decay, the nucleus either loses a proton or gains a proton. In gamma decay, no change in proton number occurs, so the atom does not become a different element. Q: Both alpha and beta decay change the number of what in an atom's nucleus? Choices: - neutrons - Gamma decay - electrons - protons A:
protons
(Question)
Answer the following question given this paragraph: Earthquakes are primarily the result of plate tectonic motions. What type of stress would cause earthquakes at each of the three types of plate boundaries?. Q: What phenomenon is primarily the result of plate tectonic motions? Choices: - eruption - tsunamis - volcanoes - earthquake A:
(Answer)
earthquake
Ques: Answer the following question given this paragraph: Q: What cellular structure is used during endocytosis to allow molecules to enter the cell? Choices: - nucleus - tissues - membranes - vesicles A:
Ans: vesicles
(Q).
Answer the following question given this paragraph: Watch this video (http://openstaxcollege. org/l/rotating_DNA) that animates the three-dimensional structure of the DNA molecule shown in Figure 1.15. Some cells contain aggregates of macromolecules surrounded by membranes; these are called organelles. Organelles are small structures that exist within cells. Examples of organelles include mitochondria and chloroplasts, which carry out indispensable functions: mitochondria produce energy to power the cell, while chloroplasts enable green plants to utilize the energy in sunlight to make sugars. All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms. (This requirement is why viruses are not considered living: they are not made of cells. To make new viruses, they have to invade and hijack the reproductive mechanism of a living cell; only then can they obtain the materials they need to reproduce. ) Some organisms consist of a single cell and others are multicellular. Cells are classified as prokaryotic or eukaryotic. Prokaryotes are single-celled or colonial organisms that do not have membranebound nuclei; in contrast, the cells of eukaryotes do have membrane-bound organelles and a membrane-bound nucleus. In larger organisms, cells combine to make tissues, which are groups of similar cells carrying out similar or related functions. Organs are collections of tissues grouped together performing a common function. Organs are present not only. Q: What are single-celled or colonial organisms that do not have membranebound nuclei? Choices: - arthropods - viruses - eukaryotes - prokaryotes A:
(A).
prokaryotes
Ques:Answer the following question given this paragraph: - Momentum equals mass multiplied by velocity. It is a vector, direction must be considered. Always define a positive direction and be consistent. Q: Mass multiplied by velocity equals what force? Choices: - kinetic energy - bounce - inertia - momentum A:

Ans:momentum
Answer the following question given this paragraph: Sperm are tiny cells. In fact, they are the smallest of all human cells. They have a structure that suits them well to perform their function. Q: What type of cells are the smallest of all human cells? Choices: - egg - dna - meristematic - sperm A:
sperm