Answer:
we do it to select the best seeds
the seeds floating on the top are bad seeds which are empty inside
the seeds that are on the bottom are good seeds they are heavy
Why would someone living in Zone 3 (last frost date is late
May) or Zone 4 (last frost date is early June) decide to plant
seedlings, which are young plants grown indoors from
seeds, rather than seeds directly into the ground?
What are 4 mutations?
Answer:
Germline mutations occur in gametes. Somatic mutations occur in other body cells. Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide
what is the biggest great white shark ever recorded
Answer:
19.7 FT.
Explanation:
According to experts, such as J. E. Randall, the largest, reliably measured Great White Shark, was 6.0 m (19.7 ft) in length, from Ledge Point in Western Australia
What species is the gray whale?
A Reptile
B Cetacean
C Lepidoptera
D Salmon
Answer:B Cetacean!
Explanation: Cetacean means marinemarine mammal and Gray Whales are mammals. #Im a teacher :)
Ex
DNA is composed of repeating structural units called
.
is the five-carbon sugar found in DNA.
Answer:
It is composed of repeated structural units called nucleotides.
Deoxyribose is the five carbon sugar found in DNA
Answer:
DNA is composed of repeating structural units called nucleotides
Deoxyribose is the five-carbon sugar found in DNA.
given the dna sequence of tcg what would be the mrna created
10. Organic compounds of what class contain only two elements?
3. In science, a theory is more like a scientific law than a hypothesis. A theory
explains a set of observations or events. It must be verified multiple times by
many different scientists. One scientist cannot create a theory on his or her own.
a) Look back at your hypothesis from question 2. Could this hypothesis become
a theory if you repeated your experiment 100 different times and got the same
results? Can a theory be created by just one person? (2 points)
Answer:
No
Explanation:
A theory cannot be made by one person, no matter how many times they repeat the experiment. Therefore, you repeating the experinment does not make it a theory. The experinment must be repeated by others and get same result as you to confirm it as theory.
What are three ways in which genes are expressed through adaptations?
Answer:
this my answer and if u are in class 10 then you aslo ask me questions of it ok by Explanation: The journey from gene to protein is complex and tightly controlled within each cell. It consists of two major steps: transcription and translation. Together, transcription and translation are known as gene expression.Describe the process of coronary circulation.
Explanation:
Blood is pumped from the left ventricle of the heart through the aorta and arterial branches to the arterioles and through capillaries, where it reaches an equilibrium with the tissue fluid, and then drains through the venules into the veins and returns, via the venae cavae, to the right atrium of the heart
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How might an environment be affected if humans introduce a new type of plant to the environment? A. The plant may compete with other plants for light. B. The plant may become another food source for animals. C. The plant may be poisonous and harmful to animals. D. all of these
Answer:
D. all of these
Explanation:
The reason is because all of the above are TRUE.
A. The plant may compete with other plants for light.
It feels like Plants and Trees are just stuff growing, but they actually compete with other plants, some don't do that much, but some do that, so that new plant may do it to get more light and might put more shade on other plants, which is dangerous for other plants.
B. The plant may become another food source for animals.
This is pretty normal, I mean, the thing here is that any plant is vulnerable to being eaten by an animal.
C. The plant may be poisonous and harmful to animals.
Yeah, like in choice B, the same thing, the plants are always Vulnerable to be eaten by hungry animals, and if an animal eats it... then it might get a disease or might just die.
So if these are all correct, then the answer HAS to be D. All of these
Answer:
D. All of these
(P.S. I got it right on Study Island)
Explanation:
When humans introduce non-native species to an area, there are many possible effects.
If a plant were introduced to an environment,
the plant may compete with other plants for light.the plant may be poisonous and harmful to animals.the plant may become another food source for animals.Which of the statements best describes the way you would engineer bacterial cells to produce a human protein?.
Answer:
Which of the following BEST describes the way you would engineer bacterial cells to produce a human protein? Use restriction enzymes to cleave both the donor DNA and the vector DNA.
Energy Flow in Ecosystems
Answer:
Energy flow in ecosystem is SOLAR ENERGY.
Select from the drop-down menu to correctly complete the statement.
A _____ is a group of individuals of the same type that live in a particular area.
please answer this correctly
Answer:
6. A. LATITUDE7. C. ANTARCTIC CIRCLE8. D. Topsoil, Subsoil, Parent materialExplanation:
6. Latitude is the measurement of distance north or south of the Equator. It is measured with 180 imaginary lines that form circles around the Earth east-west, parallel to the Equator. These lines are known as parallels
7. These zones are found in the North and South Poles. The South Frigid Zone is located between the Antarctic Circle and the South Pole, and the North Frigid Zone is located between the Arctic Circle and the North Pole.
8. As we know that the first layer of soil is topsoil , the middle layer of soil is subsoil and after the sub soil there is bedrock. Therefore, the correct arrangement of layers is top soil, subsoil, bedrock.
ihopeihelpsuAnswer:
See below ~
Explanation:
6. a. Latitude
7. d. Letters b and c
8. c. Organic, Topsoil, Subsoil
What occurs when solar radiation bounces off a surface?
texturization
absorption
reflection
energization
Pls helpthe sun hits the ocean at the equator more directly than at the poles. how does this support the flow of currents in the ocean?
The Sun creates a lot of thermal energy in the atmosphere and the oceans. Currents created as warm equatorial waters move to the north carrying heat. Due to this, the cold polar waters go south, and there get heated.
What is thermal energy?Thermal energy refers to the energy within a system and is responsible for its temperature.
The Sun heats up the air at the equator. This air will move toward the poles and cools down there with time.
In this process, the wind that occurs due to air currents will induce currents at the ocean surface.
The currents at this surface are propagated down deeper due to the differences in the forces on different parts of the water.
Thus, It is the main reason that the sun hits the ocean at the equator more directly than at the poles.
For more details regarding thermal energy, visit:
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Which gland/organ is responsible for the production of estrogen and ova?.
Answer:
Ovaries•function of the ovary is to produce the egg which develops in the Graafian follicle. The ovary is also responsible for the production of the hormones progesterone and estrogen.
What is the regulation of stable internal conditions inside an organism or a cell?
A. Responding to stimuli
B. Homeostasis
C. Obtaining and using energy
D. Cellular respiration
Answer:
(B) homeostasis
Explanation:
Homeostasis is the maintenance of a stable internal environment. Homeostasis is a term coined to describe the physical and chemical parameters that an organism must maintain to allow proper functioning of its component cells, tissues, organs, and organ systems.
What volume will 454 g (1 lb.) of H₂ occupy at 1.05 atm and 25.0°c
Answer:
Explanation:
V = 5.24 × 10^3L
What does X represent in this model?
A. air
B. light energy
C. oxygen gas
D. water
I'll mark you as brainliest, hurry up!!
What is a keystone species? Why are keystone species important? Give and example.
Answer:Key stone
Explanation:
Keystone species hold together the complex web of relationships in an ecosystem. They can be animals, plants or microorganisms. Examples of keystone species include starfish, sea otters, wolves and elephants.
Magnifying Living Things
In this activity, you will look at six samples from living things under a magnifying glass.
Estimated time to complete: 20 minutes
You will need these materials:
magnifying glass (At least 10× magnification)
a leaf
a twig or tree bark
the skin on your hand
a flower
a strand of your own hair (or a sample of pet hair, if you have a dog or cat)
a sample of your choosing
Data Collection
In this activity, you will magnify samples from the five living things listed below. You must also include one sample of your own choice. Your sample could be from a plant, animal, human, or anything that is living.
a leaf
twig or tree bark
the skin on your hand
a flower
a strand of hair
a sample of your choosing (Grass)
Part C
Part C
Did you observe any other characteristics of life in your samples?
Part D
For each of your samples, research how the structures you observed under magnification help the organisms carry out basic functions of life. Write your findings in the space provided.
Answer:
"bark" (and any subsequent words) was ignored because we limit queries to 32 words
Explanation:
-_-
olfactory cells and taste buds are normally stimulated by ________.
Answer:
The answer is substances in solution.
Explanation:
Olfactory cells and taste buds are normally stimulated by substances in solution.
Olfactory cells are normally stimulated by odorants, which are chemical substances that are volatile and capable of being detected by the sense of smell.
Taste buds, on the other hand, are normally stimulated by tastants, which are chemical compounds that can be tasted. Tastants include various molecules such as sweet, sour, bitter, salty, and umami compounds.
Both olfactory cells and taste buds play crucial roles in our perception of smell and taste, respectively, and they are stimulated by specific chemical substances that interact with receptors present in these sensory cells
To know more about odorants:
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How do I write out a physical description? I need this for a project.
Answer:
1. You don’t always have to be specific.
2. Use figurative language.
3. Describe facial expressions.
4. Make the descriptions match the tone.
5. Scatter physical descriptions throughout the prose.
6. Describe actions that reveal physical characteristics.
7. A first-person narrator can give biased opinions about appearances.
8. Describe clothing and accessories.
9. Describe the way characters move or carry themselves.
10. Remember that a little description can go a long way.
Explanation:
If you are describing someone...
which term refers to the fact that the therapist cannot disclose
Which is a reservoir for nitrogen?
A. lightning B. biomass C. nitrogen gas D. ammonium E. nitrogen-fixing bacteria
IT'S NOT C
What is the most basic form of of solar energy
A) passive solar cooling
B) passive solar energy
C) passive solar heating
Answer:B) passive solar energy
Hope this helps
(brainliest is appreciated!)
How many units of energy would there need to be in the first trophic level to end up with 1000 units of energy in the second? in the third? in the fourth?
Answer:
(First) 10,000--->1000--->100-->10 (fourth)
Explanation:
Each trophic levels gets reduced by factor of 10.
Thus if you start with 10,000 in first, then you end with 1000 in second, 100 in third and 10 in forth.
why is nicotine harmful for you
Common Side Effects: Nicotine is known to cause decreased appetite, heightened mood, increased heart rate and blood pressure, nausea, diarrhea, better memory, and increased alertness.