Osmosis is the diffusion of water across a membrane.
Explanation:
The purines are ribose and deoxyribose
Answer:
An atom is the basic unit of a chemical element. Atoms are made out of three main parts: protons, neutrons and electrons. Protons and neutrons are contained inside the very center of the atom, which is called the nucleus.
Explanation:
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Answer:To increase self-production of food and enhance its food security, Singapore has employed the use of technologies such as vertical farming and aquaponics in urban farming, nutrient recovery from food waste, biodegradable food packaging from durian rinds, natural preservatives, insect farming, microalgae and cultivated.
Many other herbicide resistant transgenic crops are currently under development (e.g., Roundup Ready alfalfa, Roundup Ready lettuce, Roundup Ready rice, Roundup Ready wheat and imidazolinone resistant wheat). ... Crops used for livestock and dairy feed will also be modified for improved utilization by animals.
If biofuels are produced from feedstocks that would have been used for food, then biofuels directly reduce potential food supplies. This reduction occurs even if feedstock price increases result in an expansion of supply because the expanded feedstock supply will typically reduce the supply of other food crops.
Increasing numbers of people often drive up demand for food, which typically results in additional use of arable land and water. This is especially true in the absence of adequate food production technology and integrated programs that simultaneously address community needs for food and reproductive health.
Explanation:
Whale fossil records show large-scale evolutionary changes from their ancestors to their descendants. By inspecting one particular ankle bone, the astragalus, in whale fossil, its shape and structure end a long standing dispute. The whale evolved from artiodactyls and not mesonychids.
