Q: Answer the following question given this paragraph: Double Fertilization After pollen is deposited on the stigma, it must germinate and grow through the style to reach the ovule. The microspores, or the pollen, contain two cells: the pollen tube cell and the generative cell. The pollen tube cell grows into a pollen tube through which the generative cell travels. The germination of the pollen tube requires water, oxygen, and certain chemical signals. As it travels through the style to reach the embryo sac, the pollen tube's growth is supported by the tissues of the style. In the meantime, if the generative cell has not already split into two cells, it now divides to form two sperm cells. The pollen tube is guided by the chemicals secreted by the synergids present in the embryo sac, and it enters the ovule sac through the micropyle. Of the two sperm cells, one sperm fertilizes the egg cell, forming a diploid zygote; the other sperm fuses with the two polar nuclei, forming a triploid cell that develops into the endosperm. Together, these two fertilization. Q: What does the triploid cell develop into during fertilization? A:

OPTIONS:
- membrane
- tubers
- zygote
- endosperm

A: endosperm

input: OPTIONS:
- proteins acids
- synthesize acids
- fatty acids
- nucleic acids Now, answer this question: Answer the following question given this paragraph: DNA and RNA are nucleic acids. DNA stores genetic information. RNA helps build proteins. Proteins, in turn, determine the structure and function of all your cells. Proteins consist of chains of amino acids. A protein's structure and function depends on the sequence of its amino acids. Instructions for this sequence are encoded in DNA. Q: Both dna and rna are what type of acids? A:
A:
output: nucleic acids

Answer the following question given this paragraph: In alpha decay, energy and an alpha particle are emitted by a nucleus that is unstable because it has too many protons. An alpha particle consists of two protons and two neutrons, so it is actually a helium nucleus. Q: What is an alpha particle with two protons and two neutrons called? A:

OPTIONS:
- chloride nucleus
- hydrogen nucleus
- hydrogen nucleus
- helium nucleus

Answer: helium nucleus

Problem: OPTIONS:
- organisms
- atoms
- microorganisms
- alkanes
Q: Answer the following question given this paragraph: The three smallest alkanes are methane, ethane, and propane. Some hydrocarbons have one or more carboncarbon double bonds (denoted C=C). These hydrocarbons are called alkenes. http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gobch04_s06_f02shows the formulas and the molecular models of the two simplest alkenes. Note that the names of alkenes have the same stem as the alkane with the same number of carbon atoms in its chain but have the ending -ene. Thus, ethene is an alkene with two carbon atoms per molecule, and propene is a compound with three carbon atoms and one double bond. Figure 4.7 Formulas and Molecular Models of the Two Simplest Alkenes. Q: Methane, ethane, and propane are three of the smallest what? A:
Answer: alkanes

Problem:OPTIONS:
- evidence
- hypothesis
- theory
- scientific law

Answer the following question given this paragraph: A scientific law is a specific statement that is thought to be never violated by the entire natural universe. Everyday laws are arbitrary limits that society puts on its members. Q: What term describes a specific statement that is thought to be never violated by the entire natural universe? A:
****
A: scientific law

Problem:OPTIONS:
- osteoclast cells
- monocyte cells
- dendritic cells
- stem cells

Answer the following question given this paragraph: Q: What serves to replace nonreproducing specialized cells as needed in the adult body? A:
****
A:
stem cells