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Scientists hypothesize that a certain species of animal existed in the past. But, fossils of the species have never been found. Which two statements could explain why?

Fossils of the species have never been found because:-

a. There were few members of the species.

d. Their bodies decompose quickly.

For an organism to become fossil it is important that it do not decompose before it get buried by sediments.

A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age.

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Why is growth and reproduction of a cell cycle?

Which of these increases as a submarine dives deeper into the ocean?

A: The number of plants in the water
B: The freshness of the water
C: The water temperature
D: The water pressure

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What photosynthetic structures would be present in a protist that gets its
energy from food it makes?

A. Chloroplasts
B. Cilia
C. flagella
D. Pseudopods

How fast was the planetesimal going in kilometers per hour when it collided with Earth?

HURRY NEED ANSWER ASAP !! What is climate ?

Uses movement of water or wind to spin a turbine conductor insulator transformer generator​

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Which statement is a scientifically accurate description of velocity?
A: The golf pro missed the shot even though the ball was only one meter away from the cup.
B: The skier traveled downhill along the 80-meter track to the finish line in just 3.5 seconds to win the competition.
C: With just two second left on the clock, the basketball player moved quickly down the court to sink the ball in the basket.
D: After traveling at 120 kph for the entire 30-minute race, the racecar driver ended the race at the same point she started.

In digestion why do some food molecules decrease by the same amount that others increase.

Water is a polar molecule. On one side there is a positive electrical charge. On the other side there is a negative charge. Water is the only substance on Earth that is stable in all three states. Earth is the only planet in the solar system that has water in all three states.

How has water allowed life to become so diverse and complex on Earth? Cite evidence from the text that best supports this idea.

You are on an expedition with a friend. As scientists, you are both learning about glaciers and their characteristics. You are both surprised to see in person that glaciers can look blue in color. Why is this the case? How will you explain your findings to your colleagues?

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Characteristics of Cell Division. Highlight the ones for Mitosis. Underline for Meiosis. Highlight/Underline if both Mitosis/Meiosis.

Goes through stages of PMAT (Prophase, Metaphase, Anaphase, Telophase)
Creates 2 Identical Daughter Cells
Has half the amount of chromosomes as parent cell
Produces gametes
Creates 4 Daughter Cells
Used for Growth and Repair
Has same amount of chromosomes as parent cell
Creates Diploid Cells
Creates Haploid Cells
Divides twice
Cytokinesis divides the cytoplasm equally between the new cells

What term refers to elements in group 18 that only react with other elements under special laboratory conditions?

When two people use the same dichotomous key to identify the same object, is it possible (should it be possible) for them to have different final answers? Explain?

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1. What layer of the Earth do the more denser objects go?

2. What layer of the Earth do the less denser objects go?

which type of severe weather is related to high pressure systems

How do sprouting plants exhibit positive gravitropism?

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Summarize cellular respiration and describe how it is part of the carbon cycle.

tobacco has been linked to many health problems. what is the most complete list of forms of tobacco that cause cancer?
a. cigarettes and snuff
b. chewing tobacco and snuff
c. cigarettes and chewing tobacco
d. cigarettes, chewing tobacco, and snuff

Image by Mariana Ruiz Villarreal
Which phase of mitosis is shown in the diagram?
O anaphase
O metaphase
O telophase
O prophase

Can someone write me a 4 sentance paragraph about sun, plants, animals, and decomposers.

True or False: Matter is changed into various forms but the total quantity remains unchanged. How do we animals depend on photosynthesis?

PLEASE HELP. ITS FOR MY SIS. PLEASE NUMBER EACH ANSWER FOR NO CONFUSION.

1.An apple contains about 20 grams of carbohydrates. How much energy does it provide?

2.Compare and contrast macronutrients and micronutrients.

3.Explain why you need fiber in your diet even though you can’t digest it.

4.Why is water considered a nutrient?

Conduction is the transfer of heat between substances with different temperatures. Heat moves from the warmer to the cooler substance through direct contact.

Which feature forms as a result of conduction between magma and water?

di ke
hot spring
caldera
batholith

Living factors that affect the growth of organisms are called
A. abiotic factors
B. biotic factors

10. Plants make energy-storing during photosynthesis.
A. Glucose
B. Mitochondria
C. Oxygen

1. Using the words below, explain the differences between these 2 changes to Earth's
surface.
I words to use: Scale of Change, Fast, Slow, Large, Small, Erosion, Chemical Weathering, Physical
Weathering.