Answer:
A
Explanation:
The purple gene was dominant, so though the plants got "factors" from both parents, only the purple gene was expressed in their phenotype (purple petals).
Why is it dangerous to a fetus for the pregnant mother to drink alcohol?
what supports and protects the chest cavity?
Answer: The bones of the chest — namely the rib cage and spine — protect vital organs from injury, and also provide structural support for the body.
Explanation:
Which of the following activities is most likely to result in nutrient pollution?
a. cutting down trees
b. pouring motor oil down the drain
c. excess fertilizer use
d. none of the above
aha aha i need help please
Answer:
?explaining ????????????
if an atom contains 5 protons, 4 neutrons, and 3 electrons. its atomic mass is
Answer: 9
Explanation:
atomic mass= protons + neutrons
5+4 =9
Which of the following best describes soil fertility?
O An inexpensive way to maintain plant health and maximize crop productivity
O The amount of nutrients available in a soil
O A measure of soil quality which stays constant throughout a growing season
O The quality or ability of a soil to provide nutrients to plants
Answer:
O the amount of nutrients available in soil
Explanation:
good answer
Measure of soil quality which stays constant throughout a growing season is best describes the soil fertility.
What do you mean by soil fertility?Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality.
A fertile soil will contain all the major nutrients for basic plant nutrition (e.g., nitrogen, phosphorus, and potassium), as well as other nutrients needed in smaller quantities, e.g., calcium, magnesium, sulfur, iron.
The following properties contribute to soil fertility in most situations: Sufficient soil depth for adequate root growth and water retention; Good internal drainage, allowing sufficient aeration for optimal root growth.
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Red-green color blindness is an X-linked recessive disorder.
A Punnett square is shown. The columns are labeled X Upper B and Upper Y. The rows are labeled x Upper B and x b.
What is the probability of the offspring having red-green color blindness for the cross that is represented by the Punnett square?
0 percent
25 percent
50 percent
75 percent
Answer: 25%
Explanation: This is the correct answer on Edge 2020 (just took the unit test review and made a 100%) ^-^.
X-linked recessive disorder refers to the genetic condition in which mutations or errors are associated with the gene are present on the X chromosome. The male will be affected by the disorder, while the females can be carriers.
In the given Punnett square, there is a 25% chance that the offspring can be -red-green color blind.
Red-green color blindness in people refers to the difficulty in distinguishing the colors like red, green, orange, and yellow. People with color blind have a normal life and there is no proper cure for the condition.
Thus, the percentage of the offspring that will be red-green color blind is 25%.
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I need a huge explanation!! I’ll give brainliest.
Answer:
Deep-ocean tsunami detection buoys are one of two types of instrument used by the Bureau of Meteorology (Bureau) to confirm the existence of tsunami waves generated by undersea earthquakes. These buoys observe and record changes in sea level out in the deep ocean.
Explanation:
hope this helps.. if correct give me brainliest plz!!!!
How many different kinds of atoms does an element contain?
A) 2
B) 1
C) 8
D) 4
Answer:
an element contain 2 atoms
Answer: Your just a kid who doesn't know anything
why does paper bread tableyellow?
Answer:
yes
Explanation:
i did this and got it right.
Name the enzymatic reactions that turn a large substrate into two or more smaller products
Answer:
you have a question you can ask
Answer:
sugar
Explanation:
it among the amino acids
Ice floats because
a.)ice is hydrophobic
b.) water is more dense as a solid
c.)ice is hydrophilic
d.)water is less dense as a solid
And Explain
Answer:
D
Explanation:
Because ice less dense than the water.
⚠️40 POINTS!!⚠️
As part of an adventure challenge, you find yourself dropped into a unknown place. There are birds and wolves. The air is
cold, and the ground is very hard. What biome have you landed in?
Answer: The Arctic Tundra.
i will give brainliest to whoever can answer this science riddle first and accurately :)
I’m at the beginning of earth’s timeline, but at the end of life’s start. I was there when a T-rex began, but in the middle of it’s asteroid end. What am I?
I believee it's the Cretaceous Period?
All of the dinosaur periods are at the start of Earth's timeline, and "the end of life's start" suggests the end of dinosaurs, meaning, when the asteroid hit. So it's probably one of the Mesozoic periods.
The T-rex first appeared in the Cretaceous Period, and the asteroid hit somewhat during middle of the Cretaceous Period.
I hope I'm right, and I hope this helps!
differences between reproduction in mammals and amphibians.
Answer:
the answer is a little weird but hope this helps
Explanation:
While all of these animals reproduce sexually (meaning that the species consists of males and females and mating involves the fetilization of eggs by sperm), reptiles and mammals reproduce through internal fertilization (inside the female) whereas amphibians practice external fertilization.
Answer:
While all of these animals reproduce sexually (meaning that the species consists of males and females and mating involves the fetilization of eggs by sperm), reptiles and mammals reproduce through internal fertilization (inside the female) whereas amphibians practice external fertilization
Cual de estos no se podria observar en un microscopio optico crestas mitocondriales, poros de la membrana nuclear, cromosomas de una celula animal condensados durante la mitosis, las dos capas lipidas que forman la membrana plasmatica
Answer:
Crestas mitocondriales, poros de la membrana nuclear y las capas lipídicas que forman la membrana plasmática no son visibles al microscopio óptico.
Explanation:
El límite de resolución de un microscopio óptico es de, aproximadamente, de 0,2 μm (es decir 10⁻⁶ m). Es decir, que en un microscopio óptico sólo podrán verse células y estructuras celulares mayores a 0,2 μm, y en algunos casos serán visibles sólo con tinciones especiales.
Por ende, entre las cuatro estructuras que se nos presentan en el problema sólo los cromosomas de una celula animal condensados durante la mitosis pueden verse al microscopio óptico.
Tanto las crestas mitocondriales como los poros de la membrana nuclear y las capas lipídicas que forman la membrana son estructuras muy pequeñas y visibles solamente al microscopio electrónico.
Petrified wood is a beautiful material that forms over thousands of years. It occurs when forests get covered in rock and sediment. Which statement is true?
1. It is a mineral now that the Earth has changed it
2. It is not a mineral because the material was organic
3. It is a mineral as long as it displays the crystal structure
4. It is not a mineral because it has a definite composition
Answer:
4. It is not a mineral because it has a definite composition
PLEASE HELP QUICK!!!
How is earths surface most likely to change as the water freezes and expands on a mountain side over time?
Erosion will cause the ice to crack the rock
Physical weathering will cause the ice to crack the rock
Chemical weathering will cause the water to dissolve the rock
Disposition will cause the water to break the rock into sediment
The earths surface most likely to change as the water freezes and expands on a mountain side over time because Physical weathering will cause the ice to crack the rock.
What is soil erosion?Erosion is nothing more than the displacement of land that happens from one place to another. In nature, the erosive process occurs by the natural action of the sun, winds and, mainly, rainwater.
It is a natural procedure, however, human action contributes to its intensification. The uncontrolled erosion process causes great damage to the environment, as it acts on the wear of the soil, makes it difficult to maintain species of animals and plants, in addition to disrupting human activities.
In this case, Erosion involves the wearing down, transport and deposition of soils and rock particles. So, the Physical weathering will cause the ice to crack the rock.
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how is the plant able to obtain each ingredient
Answer:
light enters a plant through its leaves O2 enters the plant through the stomata's or open pores
and water enters through the roots then up the stem to the tubes to leave
Explanation:
hopefully this helps
The Plants able to obtain each ingredients from the atmosphere. the light from the sunlight, [tex]CO2[/tex] from the stomata, and the water from the roots.
Stomata allow plants to absorb [tex]CO2[/tex] from the atmosphere. Water is taken from the earth by plants and transmitted to their leaves via their roots. The only source of light that the chlorophyll and other green parts of the plant absorb is sunlight.
Plants use sunlight, water, and carbon dioxide to perform photosynthesis.
They produce Chlorophyll, the pigment that makes plants green, by using stored carbon, hydrogen from water, and magnesium from the soil. They make Adenosine triphosphate, which is vital in energy transfer, by combining phosphorus, oxygen, and carbon.
Thus, Plants take nutrient from the atmosphere . light from the sunlight, [tex]CO2[/tex] from the stomata, and the water from the roots.
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Which is an abiotic factor that can be found in a rain forest ecosystem?
O A. Algae
O B. Oxygen
O C. Animals
O D. Bacteria
As human travel increases, the number of introduced species likely,
A) Decreases
B) Increases
C) Stay the same
D) Is eliminated
Answer:
B), increases
Explanation:
because as human travels the More they introduce new specis
2. An atom consists of 21 protons 22 neutrons and a number of electrons which
information will be MOST helpful in determining the atom's identity
The number of protons and neutrons
The number of protons
The number of electrons
The number of valence electrons
CUERALL
Answer:
the number of valence electrons cuerall
Give two examples each of centrifugal force
Answer:
Centripetal Force Vs Centrifugal Force.
Explanation:
Answer:
♡ hi there, fairy! ♡
- two examples of centrifugal is when mud flicks off of a car tire
and when a car drives around a curve. hope i could help!
-madi/madeline
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧
Explanation:
if chlorophyll did not work properly during the process of photosynthesis, how would this affect the plant's ability to make glucose?
Answer:
it would not turn green an nutrients would be lost because chlorophyll helps the plant with their food
The ______ ______
surrounds the nucleus and is
made of two lipid bilayers.
Why is DNA in this world?
Answer:
According of what I remember
DNA is vital for all living beings even plants. It is important for inheritance, coding for proteins and the genetic instruction guide for life and its processes. DNA holds the instructions for an organism's or each cell's development and reproduction and ultimately death.
True or False...The Stereoscope/Dissecting Microscope is used to view small specimens.
i guess the statement is false
Which is an environmental factor that would MOST LIKELY have an adverse impact on the stability of an ecosystem?
The climate change would most likely exhibit an adverse influence on the stability of an ecosystem.
Climate change impacts on ecosystems:Climate change influences ecosystems in numerous ways. Warming may make the species to migrate to higher elevations or latitudes where temperatures are more favorable.
Climate change is resulting in the elevation of sea level, resulting in intrusion of seawater into the freshwater system, which is forcing the key species to relocate. Thus, removing the prey or predators, which are essential for the stability of the ecosystem.
Due to climate change, the vegetative biomes in the United States is predicted to change across 5 to 20 percent by 2100. A specific species due to climate change ca ripple through a food web and influence a broad array of other species, thus, disrupting the food web.
Change in climate and shift in ecological conditions could support the spread of parasites, pathogens, and diseases with potentially adverse influences on agriculture, human health, and fisheries. Climate change, along with pollution and habitat destruction is one of the stressors, which can result in the extinction of species.
Thus, climate change is the environmental factor, which would most likely exhibit an adverse influence on the stability of the ecosystem.
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If a strand of DNA has 24% T, what percent will be G?
Answer:
points
Explanation:
for freee thanks and sorry
SOMEONE PLZ ANSWER
Which of the following statements is true:
A
Longitude lines go up to 90 degrees.
B
The Prime Meridian is located in Washington, D.C.
C
There are 100 minutes per degree.
D
Longitude lines go up to 180 degrees.
Answer:
Your answer is D).