What are the effects of an asteroid collision and how can we prevent one in the future ?
Which of the following human activities reduces the level of
ozone in the atmosphere?
a. Using artificial lighting in scientific polar stations
b. Using large banks of solar cells for energy production
c. Releasing chlorofluorocarbons from aerosol cans
d. Destroying large areas of the equatorial rain forests
The following human activities reduces the level of ozone in the atmosphere is Releasing chlorofluorocarbons from aerosol cans.
Thus, option "C" is correct answer.
What is a definition of atmosphere?An atmosphere is the layers of gases covering a planet or other heavenly body.
Earth's atmosphere is made up of about 78% nitrogen, 21% oxygen, and 1 percent other gases.
Thus, option "C" is correct answer.
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Stacy wants to measure the rate of photosynthesis for her plant. Before she can begin, she needs to determine what key variable she should measure.
Which of the following questions should Stacy ask in order to determine the rate of photosynthesis in her plant?
Answer:C
Explanation:
If you don’t believe me look up “ what is needed to determine the rate of photosynthesis in a plant” hope I helped
Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be
observed. These features are an example of
a. artificial selection
b. homologous structures
C. vestigial structures
d. comparative embryology
Answer:
vestigial structure that is C
Define theory and hypothesis? ( Please give a simple answer:) )
my sister lives with my parents into negative
Answer:
My sister does not live with my parents
Think about all of the beneficial
adaptations that allow humans
to thrive on Earth. Identify
and explain 3 of these
adaptations.
Answer: Supplementary angles are two angles whose sum is 180 degrees while complementary angles are two angles whose sum is 90 degrees. Supplementary and complementary angles do not have to be adjacent (sharing a vertex and side, or next to), but they can be. ... The same is true for complementary angles.
Why is mitosis necessary during the development of a human?
Answer:
Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.
Explanation:
This food chain shows the interactions between organisms found in a pond ecosystem.
Algae -Water Boatman - Diving Beetle - Frog - Heron
Which organism would be affected first if algae was removed from the ecosystem?
diving beetle
frog
heron
water boatman
Global economic development has led to an increase in the use of fossil fuels
worldwide. Which of the following would be the best solution to this global
economic problem?
A. Encouraging developing countries to participate in global trade
B. Establishing international agreements to prevent overfishing
C. Forming strict regulations on greenhouse gas emissions
D. Creating an international seed bank to protect biodiversity
SUBMIT
Answer: C
Explanation: I think it’s C because there were like strict regulations on greenhpuse gas emissions.
How would you classify this organism based on the dichotomous key?
Select one:
A. Kingdom Plantae
B. Viruses
C. Kingdom Eubacteria
D. Kingdom Protista
Answer:
1. Kingdom Plantae
Explanation:
Example Dichotomous Key
Example objects to identify: apple tree, water-lily, fir tree, dandelion, astroturf, seaweed. Dichotomous keys may be simple or complex depending on what is being identified.
c) Taxol is a cancer medication that makes the structures in the cytoskeleton
more stable. This makes it harder for cells to form mitotic spindles. Why would
this be effective when fighting a tumor? (1 point)
Answer:
Explanation:
Taxol will be effective because it stops the uncontrollable cell division of cancerous cells. It makes it very difficult for cells form mitotic spindles and hence will make it very hard for the DNA to be divided. This will then stop division and causes it to die.
DNA: TAC TTT AAA CCG GGC ATC
mRNA:
Amino acids: HELP PLEASE
Answer: ATG AAA TTT GGC CCG TAG
I cannot tell you the amino acids because I don't see the table, but there is your code
Explanation:
During which phase does DNA replication occur?
A. Metaphase
B. Anaphase
C. Prophase
D. Interphase
Explanation:
interphase
During which phase does DNA replication occur?
Answer:
D is correct
Explanation:
True or false : Variations are different heritable traitu
Answer:
false
. is the correct answer
which of the following is true about macromolecules
Answer:
i think A
Explanation:
A macromolecule is a very large molecule, such as a protein. They are composed of thousands of covalently bonded atoms. Many macromolecules are the polymerization of smaller molecules called monomers.
pa brainlies po pls
The statement that is true as regards macromolecule is Amino acid are bonded together to make a protein.
What are macromolecule?macromolecule can be regarded as the big molecules which are the composition of smaller molecules.
For instance, very large molecule, such as a protein or carbohydrates.
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4. Many of your body’s responses operate off of either negative or positive feedback loops. When you are cold, you shiver. Explain why that happens.
Answer:
The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose. If these values get too high or low, you can end up getting very sick.
Homeostasis is maintained at many levels, not just the level of the whole body as it is for temperature. For instance, the stomach maintains a pH that's different from that of surrounding organs, and each individual cell maintains ion concentrations different from those of the surrounding fluid. Maintaining homeostasis at each level is key to maintaining the body's overall function.
Explanation:
shivering burns fat to help keep one warm
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
Khan academy
7 points each answer and brainliest
Which of these would most likely happen if Earth stops revolving around the sun but continues rotating on its axis?
A. only summers in the northern hemisphere
B. only summers in the southern hemisphere
C. no seasons in any part of Earth
D. two seasons in every part of Earth
PLZ ANSWER!!!!!!!! PLZ ANSWER
Can someone please put this in there own words?
Thank you.
For example, plasma membrane proteins carry out functions as diverse as ferrying nutrients across the plasma membrane, receiving chemical signals from outside the cell, translating chemical signals into intracellular action, and sometimes anchoring the cell in a particular location.
Answer:
All cells have plasma membranes. Can molecules enter and leave the cell? Yes. The plasma membrane (also called the cell membrane), is a lipid barrier where molecule organelles live. The golgi ( a cell organelle) helps move the proteins across the plasma membarane. Proteins cannot move through the plasma membrane barrier by themselves because they are not small enough like water.
Explanation:
Hope this helps. :) P.S. Can I be marked brainliest . . . ? :)
heyy everyone I need the ans as quick as possible so the qn is. What are the similarities between queen been and worker been. please help!!!!!!
Answer:
The female queen is large in size and specializes in reproduction and workers are small and engage in colony-maintaining activities.
Explanation:
Choose from these ecosystems:
Prairies
Forests
Beaches
Dunes
Lakes
Ponds
Rivers
Streams
Wetlands
Coral Reefs
Estuaries
Salt Marshes
Mangrove Swamps
Florida Ecosystems
Once given your Florida ecosystem, you will research and present the topics listed below about your ecosystem. Please include visuals.
Briefly tell us where in Florida your ecosystem is often found and general characteristics
---average amount of water
---general physical characteristics
---unique characteristics of your ecosystem
List and describe 3 common producers found in your ecosystem
---include information such as what type of species prey on these producers, what the producer needs in order to survive and thrive, etc.)
List and describe 6 common consumers found in your ecosystem
---In your descriptions please include what the animals are preying on, where they build shelters, what their niche is, etc.)
Try to find at least one decomposer and/or scavenger in your ecosystem
--- What is it eating/decomposing? How is this helpful to the ecosystem?
List and describe one example of mutualism, one example of commensalism and one example of parasitism in your ecosystem
---Name the species involved and explain the relationships
List any endangered, threatened or extinct species from that ecosystem
Explain 1 food chain in your ecosystem
Explain competition between species in your ecosystem
please help fast am giving 20 points and brainliest
Answer:
Wetlands and others competition
can someone help me fill this out?
Answer:
I Feel Bad For You My Dude
Does light skin color people can get cancer more easily than people who have darker skin?
2.
reproduction produces offspring with a mixture of the parent's traits.
a. Sexual
b. Asexual
C. Mixture
d. Budding
Answer:
a. Sexual
Explanation:
When can a solar eclipse occur
Answer: when their is a new moon
Explanation:
Total solar eclipses happen when the Moon completely covers the Sun, and it can only take place when the Moon is near perigee, the point of the Moon's orbit closest to Earth. You can only see a total solar eclipse if you're in the path where the Moon casts its darkest shadow, the umbra.
A frog that is native to the rainforests of Central America is a member of the genus agalychnis. This genus is part of the hylidae family, and this specific frog belongs to the species callidryas.
What is the scientific name for this frog?
Explain how the disruption can disturb the cycling of carbon ?
Answer:
Humans have breached this cycle by digging up fossil fuels and burning them, leading to carbon dioxide building up in the atmosphere faster than natural systems can soak it up. This has led to a net increase in greenhouse gases in the atmosphere, causing the planet to heat up.
Explanation:
Squirrels and birds feed on insects in a forest. Mild temperature and high humidity favors growth of insects.
What will be the effect of decreased humidity on the forest ecosystem?
A.
Population of insects will increase in the forest.
B.
Population of birds will increase in the forest ecosystem.
C.
Competition will increase between squirrels and birds for food.
D.
Squirrels will get more adapted to the changed environmental conditions
Answer:
competition will increase between squirrels and birds for food.
6. Phylogenetic trees are used for?
Phylogenetic trees show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.