Q: What is a measure of the force of gravity pulling on an object of a given mass? Read this paragraph and choose the correct option from the provided answers: Newton's second law of motion explains the weight of objects. Weight is a measure of the force of gravity pulling on an object of a given mass. It's the force (F) in the acceleration equation that was introduced above:. Choices: - scale - effect - solidity - weight A:
weight

(Question)
Q: Animals that molt their exoskeletons belong to which clade? Read this paragraph and choose the correct option from the provided answers: Figure 27.13 Animals that molt their exoskeletons, such as these (a) Madagascar hissing cockroaches, are in the clade Ecdysozoa. (b) Phoronids are in the clade Lophotrochozoa. The tentacles are part of a feeding structure called a lophophore. (credit a: modification of work by Whitney Cranshaw, Colorado State University, Bugwood. org; credit b: modification of work by NOAA). Choices: - protists - spirogyra - trichina - ecdysozoa A:
(Answer)
ecdysozoa

Ques: Q: What occurs when so much water enters a stream or river that it overflows its banks or when deep snow melts very quickly in spring? Read this paragraph and choose the correct option from the provided answers: A flood occurs when so much water enters a stream or river that it overflows its banks. Flood waters from a river are shown in Figure below . Like this flood, many floods are caused by very heavy rains. Floods may also occur when deep snow melts quickly in the spring. Choices: - drought - avalanche - storm - flooding A:
Ans: flooding

(Q).
Q: Scientists found that the youngest rocks on the seafloor were where? Read this paragraph and choose the correct option from the provided answers: The scientists used geologic dating techniques on seafloor rocks. They found that the youngest rocks on the seafloor were at the mid-ocean ridges. The rocks get older with distance from the ridge crest. The scientists were surprised to find that the oldest seafloor is less than 180 million years old. This may seem old, but the oldest continental crust is around 4 billion years old. Choices: - trenches. - mid - ocean sediments - mid - ocean glaciers - mid-ocean ridges A:
(A).
mid-ocean ridges

Ques:Q: An estimated 99 percent of the species that have ever lived on earth no longer exist, showing that what event is common? Read this paragraph and choose the correct option from the provided answers: Even though large life forms have been very successful on Earth, most of the life forms on Earth today are still prokaryotessmall, relatively simple single-celled organisms. Fossils indicate that many organisms that lived long ago are extinct. Extinction of species is common; in fact, it is estimated that 99% of the species that have ever lived on Earth no longer exist. Choices: - accumulation - over fishing - pollution - extinction A:

Ans:extinction

Ques:Q: What is a measure that has both size and direction? Read this paragraph and choose the correct option from the provided answers: Force is a vector, or a measure that has both size and direction. For example, Colton pushes on the ground in the opposite direction that the scooter moves, so that's the direction of the force he is applies. He can give the scooter a strong push or a weak push. That's the size of the force. Like other vectors, a force can be represented with an arrow. You can see some examples in the Figure below . The length of each arrow represents the strength of the force, and the way the arrow points represents the direction of the force. Choices: - length - velocity - wave - vector A:

Ans:
vector