Energy is passed up a food chain or web from lower to higher trophic levels, and an example of chemical energy is food nutrients. Given these facts, _ are passed from lower to higher trophic levels among the following options: - fossil fuels - rays or beams - nutrients - environment - animals - heat produced - Most plants - Light
nutrients

(Question)
Lakes are formed by precipitation and runoff, and for example, Lake Tahoe is a huge lake originating from mountain stream runoff. Given these facts, what does Lake Tahoe originate from among the following options: - hydrogen and oxygen - It's manmade - An ocean - tectonic plates coliding - A hurricane - A mountain stream - Water expanding - body water
(Answer)
A mountain stream

Ques: Excretion is the process of removing wastes and excess water from the body, and all organisms excrete wastes. Given these facts, what is one thing all organisms do among the following options: - Eat food through the mouth - converting mass to energy - Remove waste from the body - Walk on two legs - eat plants or other animal - by keeping them warm - produce offspring - Hatch from eggs
Ans: Remove waste from the body

(Q).
Scales are used for protection by scaled animals, and generally, reptiles are thought of as being land dwelling animals with scales. Given these facts, reptiles have what for protection among the following options: - shells - cartilage - the skin - hair - fur - scales - keratin - beaks
(A).
scales

Ques:Freezing causes a solid to form, and lower temperature thresholds are at freezing. Given these facts, what causes a solid to form among the following options: - sunlight - evaporative cooling - gases - Physical weathering - water evaporation - lower temperature thresholds - exposure to cold - fissures of hot, acidic water

Ans:lower temperature thresholds

Ques: Gymnosperms are vascular plants that produce seeds in cones, and softwoods, on the other hand, are gymnosperms . Given these facts, what type of plant produces seeds in cones among the following options: - Softwoods. - Conifers - Aloe. - Most plants - Sunflower seeds. - white - epidermal - Fern plant.
Ans:
Softwoods.