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
(Question)
Answer the following question given this paragraph: Q: Which carrier molecule becomes less effective at binding oxygen as temperature increases? Choices: - water - helium - hydrogen - hemoglobin A:
(Answer)
hemoglobin
Ques: Answer the following question given this paragraph: Isotopes have different numbers of neutrons in their nuclei. Q: Isotopes have different number of these in their nuclei? Choices: - protons - electrons - atoms - neutrons A:
Ans: neutrons
(Q).
Answer the following question given this paragraph: Q: Programmed cell death is also known as? Choices: - suicide - sepsis - necrosis - apoptosis A:
(A).
apoptosis
Ques:Answer the following question given this paragraph: Population size is the number of individuals in a population. For example, a population of insects might consist of 100 individual insects, or many more. Population size influences the chances of a species surviving or going extinct. Generally, very small populations are at greatest risk of extinction. However, the size of a population may be less important than its density. Q: Population size influences the chances of a species surviving, with very small populations generally at greatest risk of what fate? Choices: - adaptation - accumulation - mutation - extinction A:

Ans:extinction
Ques:Answer the following question given this paragraph: In order to study these characteristics, Mendel needed to control the pollination of the pea plants through artificial fertilization . Pollination occurs when the pollen from the male reproductive part of a flower, called the anthers , is transferred to the female reproductive part of a flower, called the stigma . Pea plants are self-pollinating , which means the pollen from a flower on a single plant transfers to the stigma of the same flower or another flower on the same plant. In order to avoid self-pollination, Mendel removed the anthers from the flowers on a plant. He then carefully transferred pollen from the anthers of another plant and using a small paintbrush, dusted the pollen onto the stigma of the flowers that lacked anthers. This process caused cross-pollination. The Figure below shows the location of the male and female parts of a flower. Cross-pollination occurs when pollen from one flower pollinates a flower on a different plant. In this way, Mendel controlled the characteristics that were passed onto the offspring. The product of cross-pollination is known as a hybrid. The ability to cross-pollinate pea plants allowed Mendel to study the offspring of two parents with different traits, such as a tall stem or a short stem. Q: The process of transferring pollen from the male reproductive part of a flower known as the anthers to the female reproductive part of the flower known as the stigma is referred to as what? Choices: - inoculation - fertilization - reproduction - pollination A:

Ans:
pollination