1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jolli1 [7]
3 years ago
15

Can someone please help me with this?

Biology
1 answer:
mihalych1998 [28]3 years ago
5 0
1. "What makes certain people faster than others?"

2. Sally was concerned after she noticed her friend was faster than her.

3. The height of Sally's classmates

4. I would say quantitative because it is the time in numbers it took each person to run the mile.

5. The heights of her classmates, how much they excersize, etc.

6. Everyone ran one mile, all of the classmates are girls, etc.

7. There is no control group.

8. There was only one trial in this experiment.
You might be interested in
1. Wegener formed the theory of continental drift in 1912. What prevented research of the ocean floor, paleomagnetism, and earth
Citrus2011 [14]
This explanation and his theory were not widely accepted. Prior to Wegener, however, many had noted that the shapes of the continents seem to fit together, suggesting some schism in the past. 

<span>Continental drift was really not allowable as even an accepted theory until the 1950s. Most geologists accepted the theory as quite possible before 1970. Several factors point to the acceptance of the continental drift theory. </span>

<span>Fossil records from separate continents, particularly on the outskirts of continents show the same species. As well mineral specimens along the supposed break lines of the continents are nearly identical. Some identical species exist on certain continents, like an earthworm common to both Africa and South America suggesting the species could not have spontaneously arisen on both continents without some variations hope this helps</span>
6 0
4 years ago
Read 2 more answers
Which star is the closest distance to the Sun?Chara
rewona [7]
Chara 27.3 light years
Tau Ceti 11.9 light years
Zeta Leporis 70.2 light years
Epsilon Reticuli 59.5 light years

The answer is Tau Ceti.

8 0
3 years ago
Read 2 more answers
Ecosystems change when _______. a. living components of an ecosystem change b. nonliving components of an ecosystem change c. th
ICE Princess25 [194]

Ecosystems change when all of the above components listed change ie, living components of an ecosystem, nonliving components of an ecosystem, or their stability is disrupted.

Hence correct option is D.

  • A community of creatures and their physical environment make up an ecosystem.
  • Ecosystems can be terrestrial, aquatic, or marine and come in a variety of sizes.
  • The term "biome" refers to broad classifications of terrestrial ecosystems. Ecosystems, the dynamic network of living and nonliving things in a place, change gradually over time.
  • New plants and animals either thrive or suffer when they are introduced to a region. Sometimes thriving species suppress native species. The system as a whole starts to shift when this occurs.
  • If the living components i.e., flora and fauna of the ecosystem change then there will be increase or decrease in food availability and either surge in predators or no predators at all. hence it will greatly affect the ecosystem.
  • non living components such as temperature, water availability, natural calamities can also affect the ecosystem. it can lead to extinction or migration from one place while influx of immigration to another.
  • if the stability of ecosystem is disrupted due to change in living and non living components then also the ecosystem will be affected.

hence all of the above options are correct.

learn more about Ecosystems here:brainly.com/question/842527

#SPJ4

4 0
2 years ago
Question 7 (3 points)<br> Which of the following describes the law of original horizontality?
Naddik [55]

Answer:

"Folded sedimentary layers were originally laid down flat and later deformed." describes the law of original horizontality.

Explanation:

In terms of structural geology, the folds happens when the one over the another are piled up on a flat as well as planar structure i.e. sedimentary strata. Which sometimes are bent or may be curved because of the permanent deformation. Both upward as well as downward folds occurs in the sedimentary fold. Which is known as the anticline or the syncline. There are three major folds in case of the sedimentary layers they are monocline, anticline and syncline. Simple bend layers are called as the monoclines.

3 0
3 years ago
What are the two main types of cells
Ostrovityanka [42]

Answer: prokaryotic and eukaryotic

Explanation:

6 0
4 years ago
Read 2 more answers
Other questions:
  • How do bugs eat food?
    9·2 answers
  • When a group of young geese watch the first thing they see after being born in order to learn behaviors, they are _______.
    6·1 answer
  • Which of the following statements is true?
    7·2 answers
  • Define the word (Binomial name)
    6·1 answer
  • Check all the characteristics below that describe ATP.
    6·2 answers
  • Which movement decreases the angle between articulating bones?
    11·1 answer
  • What does chlorophyll mean in your own words?
    9·1 answer
  • What might an elevated skin temperature indicate beside a fever from a cold, flu, or other typical viral disease? How might you
    7·1 answer
  • Which description of a muscle action is not correct?
    15·1 answer
  • 36. What are the two smaller tubes that branch off of the trachea?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!