Answer:
The main producers in the marine ecosystem are plankton, whereas in the African savanna system, it's trees and grass. And in the marine ecosystem, sunlight is not available for all producers
Explanation:
Which is NOT TRUE about upland landscape positions?
A May be subject to erosion
B Normally the oldest and most strongly developed
C Area of accumulation of soil material
D Includes summits and side-slopes
Answer:
A. May be subject to erosion
Explanation:
When you use the five senses to describe something is ____________________observation.
Answer:brilliant
Explanation:
describe the role of soil organisms in soil structure and development
Answer:
One of the most important roles of soil organisms is breaking up the complex substances in decaying plants and animals so that they can be used again by living plants. This involves soil organisms as catalysts in a number of natural cycles, among the most prominent being the carbon, nitrogen, and sulfur cycles.
Explanation:
True or False: Both predator and prey
species experience the same pattern of
"boom and bust" cycles.
Answer:
true
Explanation:
Identify the following groups by name and give the number of valence electrons in each...
1. Group 1 (1A):
2. Group 2 (2A):
3. Group 3-12:
4. Group 14 (4A):
5. Group 15 (5A):
6. Group 16 (6A):
7. Group 17 (7A):
8. Group 18 (8A):
(this is talking about the periodic table
Answer:
it's really simple, all you need to do is look at the periodic table. for example, group 1A has 1 valence electron. 2A has 2, 3A has 3, and so on.
The track star runs 100m at a rate of 10.4m/s. How long did it take to run 100m?
Answer:
Time, t = 9.62 secs.
Explanation:
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the equation;
[tex]Speed = \frac{distance}{time}[/tex] ....equation 1
Making time the subject formula;
[tex]Time = \frac{distance}{speed}[/tex] .....equation 2
Given the following data;
Distance = 100m
Speed = 10.4m/s
Substituting into equation 2;
[tex]Time = \frac{100}{10.4}[/tex]
Time, t = 9.62 secs.
What is a gene? What is its purpose?
I
Which of these is a harmful interaction? (4 points) Competition Mutualism Commensalism Symbiosis
Answer:
Commensalism Symbiosis
Explanation:
Answer:
Symbiosis
Explanation:
If climate change increases the overall temperature of the earth, glaciers can melt
into the ocean. If that happens, what would be the spheres involved?
A. cryosphere and hydrosphere
B. geosphere and atmosphere
C. cryosphere and biosphere
D. hydrosphere and atmosphere
The climate change increases the overall temperature of the earth, glaciers can melt into the ocean. The spheres involved cryosphere and hydrosphere. Thus option A is correct.
What is cryosphere?Cryosphere is defined as solid precipitation, snow, sea ice, lake and river ice, icebergs, glaciers and ice caps, ice sheets, ice shelves, , and seasonally frozen ground are all components of the Earth's climatic system.
It can also be defined as the area of the earth's surface marked by the presence of water.
Hydrosphere is defined as the total mass of water on, beneath, and above the surface of a planet, minor planet, or natural satellite.
It can also be defined as the component of the Earth made up of all liquid water.
There are basically three types of hydrosphere.
LiquidVaporIceClimate change is defined as the long-term temperature and weather pattern shifts These changes could be natural, such as oscillations in the solar cycle.
Thus, the climate change increases the overall temperature of the earth, glaciers can melt into the ocean. The spheres involved cryosphere and hydrosphere. Thus option A is correct.
To learn more more about cryosphere, refer to the link below:
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if a person happens to have a blood type which is AB+, can we consider it as a case under the codominance pattern of inheritance? why or why not?
PLEASE PLESAE HELP ME
Fungi are able to digest food outside of their body and then absorb it, what term describes this process?
a). Absorptive heterotroph
b). autotroph
c). chemotroph
d). carnivores
Answer:
a.) Absorptive heterotroph.
Explanation:
please answer this for me
Answer: Organ
Check my answer
Explanation:
Which system is represented by the diagram below?
Male
Female
Hypothalamus
Pituitary gland
-Pineal gland
Thyroid gland
Adrenal
gland
Pancreas
Reproductive
glands
-endocrine
-exocrine
-respiratory
-immune
Answer:
The endocrine system.
Endocrine system is the system that release specific molecules called hormones and helps in control and co-ordination. The represented diagram is of endocrine system.
What is endocrine system?Endocrine system is a network of glands and its associated organs. It includes hypothalamus, pituitary gland, pineal gland, thyroid gland etc.
The main function of endocrine system includes:
Making hormone.Sending them to bloodstream.regulation of release of hormone.Thus option a is correct.
For more information about endocrine system, visit:
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List the four reasons why humans should protect ecosystems.
Answer:
Explanation:
Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes.
Coral is a keystone species for the Great Barrier Reef. Many organisms and ecosystems in the reef rely on coral for a variety of reasons. Ocean acidification bleaches coral and kills coral. Explain the impact this would have on the biodiversity of the ecosystems within the Great Barrier Reef.
Answer:
The impact this would have on the biodiversity of the ecosystems within the Great Barrier Reef is that knowing its takes million of years for coral reef to develop it would be devastating as a end result because many organisms and sea lifes rely on the Great Barrier Reef for survival.
2. Why must the satellite use electromagnetic
waves instead of sound waves?
Answer:
Since electromagnet waves do not need a medium they can travel through space. Sound waves can't travel through space because they need a medium.
Explanation:
The satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.
What types of electromagnetic waves are used by Satellites?The types of electromagnetic waves that are used by satellites are known as radio waves. These waves are utilized in order to carry out satellite signals with a speed of 3000,000km/sec.
Electromagnetic waves facilitate the required amount of speed and characteristics which ease the transmission of information required by the satellites. Radio waves are traveling through the vacuum of space with the fastest speed at which the information via the satellite can be transmitted. Radiowaves are also used for spacecraft communications as well.
Therefore, the satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.
To learn more about Electromagnetic waves, refer to the link:
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This molecule is a and it is classified as
A.) saturated fatty acid, lipid
B.) saccharide, carbohydrate
C.) unsaturated fatty acid, carbohydrate
D.) unsaturated fatty acid, lipid
Which condition is associate; with most warm fronts?
A. cloud formations bringing precipitation
B. tornado formations
C. violent air mass collisions D. low temperatures
Match the names and descriptions to the correct phase of a star's life cycle.
PLATO. please help!
Answer:
pic 1 red giant, a star whose outer shell has expanded and cooled
pic 2: supernova, a shock wave produced by extremely high temperatures
pic 3: black hole, a high mass star that has collapsed from gravity
pic 4: white dwarf, a low mass star that has shed its outer layers
Explanation:
What is science responsible for?
O technological evolution
O technological revolutions
O tragical revolutions
The basic building block of all matter and the smallest unit of matter is
Atom b. Matter c. atomic number d. molecule
a.
1. List the major ways in which humans are damaging the environment
2. Floods can devastate an ecosystem, however they can also have a positive impact. Please explain the positive impacts major floods can have on the ecosystem.
3. How do seasonal changes in temperature, water availability and sunlight affect ecosystems?
4. Propose 5 ways that humans can help minimise the negative effects both natural events and human impact can have on ecosystems.
Answer:
1. The large number of the pollution going into the air becaue of overfarming, and the high demand for unrenewable resources.
2. The positive impacts that floods can have is that they can water plants for places in drought like places such as California. For areas that are vastly dry, rain could be essential to humans, plants and animals in need of it.
3. These changes affect the ecosystem puts the ecosystems in a rather different situation than the ecosystem and those supported by it to adapt to the newcomings occuring of different seasonal changes and much more.
4.
-There can be alternatives to not destroying unrenawable resources.
-Use electrical cars that don't pollute the air.
-Be resourceful with their water and don't use more than needed.
-don't litter.
-recycle.
which perspective says that babies are biologically equipped for using language but also need experience?
Answer:
Interactionist
Explanation:
How much work is required to push a 300 N box 10 m across the floor?
Answer:
3000J
Explanation:
W = F x D
W = 300N x 10m
W = 3000J
A collaborative commercial construction venture is like which of the following?
Answer:
(B) two organisms working together
Explanation:
took the test and got it right
Which two of the three elements have SIMILAR CHEMICAL PROPERTIES (valence electrons)?
1. Li - Na - Mg
2. F - Br - O
3. P - As - Se
4. Ra - Ba - Cs
Answer:
1. Li - Na
2. F - Br
3. P - As
4. Ra - Ba
Your assignment in biology lab is to design an experiment that would detect whether a substance is breaking down, or digesting, a protein. Which of the following experimental designs would be your best choice?
Answer:
b. Test tube A: Water and soy protein
Test tube B: Water, egg white, and pepsin
Test tube C: Water, egg white, acid, and pepsin
Procedure: Observe each test tube for changes in the protein every 15 minutes.
Explanation:
Fill in the blank spaces in the table.
Neutron
Protomis
Atomic Mass
1
1
6
6
Element
Hydrogen
Carbon
Calcium
Fluorine
Potassium
Oxygen
20
40
9
19
19
39
8
16
Which subatomic particle identifies the atom?
og e
Answer:
hydrogen =1 1
carbon=6 6
calcium=20 40
fluorine=9 19
potassium=19 39
oxygen=16 8
The Tacoma narrows bridge collapsed due to?
A. Refraction
B. Reflection
C. Diffraction
D. Resonance
True or False:
Cold fronts often bring stormy weather.
Answer:
true, Since the other person said false here's Evidence:
Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms. At a warm front, there may be low stratus clouds. Usually, the skies clear once the front has passed.