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
anygoal [31]
3 years ago
10

What do paleontologists use to define the boundaries between geologic time intervals?

Biology
1 answer:
ryzh [129]3 years ago
8 0

Answer:

Explanation:

The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.

You might be interested in
What is an organism’s niche?
AURORKA [14]

Answer:

The term niche, when used in the science of ecological biology, is used to define an organism's role in an ecosystem. Not only does its niche include the environment that a given organism lives in, but it also includes the organism's "job" in that environment

Explanation:

credit to Thought.co

5 0
3 years ago
Read 2 more answers
What color is an index contouring line usually?
attashe74 [19]

Answer:

hope that helps?

Explanation:

A contour line (also isoline, isopleth, or isarithm) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. It is a plane section of the three-dimensional graph of the function f(x, y) parallel to the (x, y)-plane. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. The contour interval of a contour map is the difference in elevation between successive contour lines.

8 0
3 years ago
Please match the white blood cells with the statements that most accurately describe them to test your understanding of the beha
Artyom0805 [142]

Following are the statements:

1. Main phagocytes in circulation

2. Like eosinophils, they are involved in inflammation and allergic reactions

3. Phagocytic cells that leave circulation and differentiate into macrophages

4. Display no antigen specificity but are active against tumor and virally infected cells

Answer:

1. Neutrophils

2. Basophils

3. Monocytes

4. Natural killer cells

Explanation:

Neutrophils can be described as the most abundant type of white blood cells. They make up to 55%- 75% of the immune system.

Basophils can be described as white blood cells which are made in the bone marrow.

Monocytes can be described as white blood cells which are the largest and differentiate into macrophages and myeloid lineage dendritic cells.

Natural killer cells can be described as white blood cells which play a role in providing innate immunity.

8 0
3 years ago
Which of the following organs controls body temperature, water level, and carbon dioxide level
polet [3.4K]

The kidney or the liver one of those are correct you didn't give options

3 0
3 years ago
Where is ciliated epithelium found and what role does it play?
Andru [333]

Answer:

Explanation:

Firstly, let us break down the components:

A cilia is a hair-like structure positioned on a tissue for locomotive purposes

Epithelium is a type of tissue

Therefore, a ciliated epithelium is a kind of tissue that contains hair-like structures called cilia for locomotion. They can be found in our respiratory tracts lining, the fallopian tube of human females, brain etc. where they mainly perform the function of moving particles.

They help move foreign particles like dust from our respiratory tracts, they help move the egg from the ovary to the uterus of women, they also move cerebral spinal fluid in the brain.

Ciliated epithelium contains goblet cells, that secretes mucous to provide the moist medium for locomotion

7 0
3 years ago
Other questions:
  • What type of reasoning is used in this example?
    11·1 answer
  • When water moves across the cell membrane, it does so through a particular structure. Which statement best describes the movemen
    6·1 answer
  • Predict the chemical formula of butyne, having one carbon-carbon triple bond.
    15·1 answer
  • Explain ​how​ scientists got the space station up in space. What ​problem​ did they
    13·1 answer
  • How does the contractile vacuole in a single-celled organism function to maintain homeostasis?
    8·1 answer
  • The Super-Volcano erupts in Yellowstone National Park. Lava, ash, etc. devastates 2/3 of the USA leaving newly cooled rock
    14·1 answer
  • In the female reproductive tract . fertilization normally occurs in the
    10·1 answer
  • What are membrane-bound organelles? Help please
    15·1 answer
  • Many birds migrate to warmer climates in the spring. Find two reasons why. Group of answer choices To get away from seasonal pre
    10·1 answer
  • the activities in the cell cycle occur during a specific phases. In which phase of the cell cycle is DNA replicated?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!