Answer:
crossing the plant to one you know has the recessive trait
Explanation:
The correct procedure would be to cross the identified plant with the same plant that has the recessive trait.
The phenotypes of the progeny from the cross will give an indication of the dominance or recessive of the phenotype. If all the progeny from the cross produce the same flower color as that of the identified plant, it means the phenotype is dominant. Otherwise, it is recessive.
The procedure is called test-crossing in genetics.
darwin's experiments are just one way to study phototropism. a student wants to investigate the effects of phototropism in bean plants. she places a light source above one plant, at a forty-five degree angle to another, and at a ninety-degree angle from the third.
What is her independent variable?
What is a hypothesis she might write for her experiment?
Thank you
Answer:
Independent variable: Angle or direction of light
Hypothesis: IF the light is placed on the plant at a particular angle, THEN the plants will grow in that direction
Explanation:
In an experiment, the HYPOTHESIS is a testable explanation given to explain an observed problem or to answer a question. According to this experiment,
a student wants to investigate the effects of phototropism in bean plants i.e. how light affects the direction of plant growth. The scientific question is "How does light affect the direction which plant grows?". Therefore, a possible hypothesis will be:
IF the light is placed at a particular angle or direction, THEN the plants will grow in the direction of that light source.
- The independent variable is the variable that the experimenter changes or manipulates in order to effect a measurable response (direction of growth). In this experiment, the DIRECTION OR ANGLE OF THE LIGHT SOURCE IS THE INDEPENDENT VARIABLE.
(2,-2) and (0, -1)
linear equation
Answer:
y = -1/2x - 1
Explanation:
Slope-Intercept Form: y = mx + b
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Step 1: Define
(2, -2) random points
(0, -1) y-intercept
Step 2: Find slope m
[tex]m=\frac{-1-(-2)}{0-2}[/tex]
[tex]m=\frac{-1+2}{-2}[/tex]
[tex]m=\frac{1}{-2}[/tex]
[tex]m=\frac{-1}{2}[/tex]
y = -1/2x + b
Step 3: Write linear equation
y = -1/2x - 1
EASY 5 points
please help❤️
Which type of molecular
movement requires energy?
A. active transport
B. diffusion
C. facilitated diffusion
Answer:
A. Active Transport
Explanation:
Is this the answer you are looking for?
I need help on this please help
dna, genes, animo, to acids
What is the name of the site on a chloroplast where half of the reactions in
photosynthesis occur?
Answer:
thylakoid
Explanation:
The light reactions take place in the thylakoid. There, water (H2O) is oxidized, and oxygen (O2) is released. The electrons that freed from the water are transferred to ATP and NADPH.
will give brainlist to first person with right answer
Answer:
b!
Explanation:
What are some components of a chemical reaction?
environmental scientists collect air samples so they can test the quality of the air, they start with rigid metal containers that are completely empty the air has been pumped out of them what happens to the pressure inside the container and the volume of the container as air enters it?
Answer:
Here's this. Let me know if that helps :)
Explanation:
The sampling procedures must be designed so that samples of the actual dust concentrations are collected accurately and consistently and reflect the concentrations of dust at the place and time of sampling. Sufficient number of 6-hour area samples in each distinct work area of the plant should be collected at locations which provide representative samples of air to which the worker is exposed. In order to avoid filter overloading, sampling time may be shortened when sampling in dusty areas. Samples in each work area should be gathered simultaneously or sequentially during a normal operating period. The daily time-weighted average (TWA) exposure of each worker can then be determined by using the following formula:
As the air which is pumped out of the empty rigid metal containers the pressure inside the container increases as well as the volume of empty container increases to occupy the space.
What are pressure and volume changes?The container experiences changes in the amount of pressure and volume, when the matter is added or removed from a container. An increase is experienced when something is added to the container.
The increase in volume and pressure are observed because as the air is pumped out of the container it tries to spread out and volume increases as the particles starts to occupy the empty space present in the container. With the particles occupying volume of container, the air particles try to move faster and as a result hits the container harder which lead to increase in the pressure inside the container, and the volume of air pumped out of the container.
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Explain what caused the existence of the dark-colored peppered MOTHS:)
Answer:
The moths adapted to the environment they were in which was heavily polluted and the spots helped it blend into the environment. It was in the UK somewhere I don't remember where though.
Explanation:
The peppered moth's evolution is an example of how air pollution during the Industrial Revolution caused directional color changes in the moth population.
What are the adaptation of dark-colored peppered moths?The genetic basis for color was eventually discovered. Moths inherited their color from their ancestors. Eggs from light moths became light moths, whereas eggs from dark moths became dark adults.
At that time, a manifestation of industrial melanism was the rise in the number of dark-colored moths.
The moths blended in with the severely contaminated environment they were in thanks to their markings, which helped them adapt to it. Although I can't recall where, it was in the UK.
Therefore, A mutation in one moth's DNA resulted in the dark color, and the mutant gene was passed on to all the moth's progeny.
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what is one treatment for cancer
Answer:
Some people with cancer will have only one treatment. But most people have a combination of treatments, such as surgery with chemotherapy and/or radiation therapy. You may also have immunotherapy, targeted therapy, or hormone therapy.
Pea plant clones are giving different amounts of water for a three-week period. First pea plant receives 400 milliliters a day. The second pea plant receives 200 milliliters a day. The third pea plant receives 100 milliliters a day. The fourth pea plant does not receive any extra water; the plant only receives natural ways of receiving water. The height of pea plants is recorded daily. Control group
Answer:
The correct answer is -
Control group - the group of plants is not received an extra amount of water.
Control variable - the type of plant (pea plant)
Explanation:
It is asked that what is the control group in this research or study, a control group is the group of subjects that did not receive treatment in the study that is given to the experiment subjects.
Where is the control variable is a variable that remains unchanged during an experiment so it does not affect the experiment in the study.
Thus, the correct answer is -
Control group - the group of plants is not received an extra amount of water.
Control variable - the type of plant (pea plant)
What is the answer ??
Answer:
take a pick closer
Which of the following is possible when a populations carrying capacity is reached or exceeded?
population growth will slowly level off
Population continues to grow exponentially past the carrying capacity
population growth will crash
Carrying capacity of the ecosystem is reduced
Answer: population growth will crash
Explanation: Every organism follows a growth curve to complete its life cycle. When the organism exceeds its carrying capacity in the environment, then the population crashes.
There are mechanism present in the environment to prevent growth after a certain extent of time. Example: Plants only have the ability to regenerate after being crashed but other organism lack this property.
After a certain extent, population crashes along with its environment.
TRUST ME!!! I'm Brainly and the answer is correct in Edge!!! :)
Which of the following is not part of Earth's physical systems? *
A. Ecosphere
B. Hydrosphere
C. Biosphere
D. Atmosphere
answer
ecosphere that is the answer
answer
What are the 4 "agents" of weathering, erosion, and deposition?
Answer:
Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion.
Explanation:
I need help please !!!!!!!!!!!!
Answer:
with??
Explanation:
what processes that occur during the formation of metaphoric rocks make it difficult for fossils to survive
Answer:
I’m pretty sure it’s weathering
In which trophic level do we find the producers?
Answer:
Level 1...Plants and algae make their own food and Plants and algae make their own food and are called producers.
Answer:
The base of the pyramid
Explanation:
An example of which is: grass
What three sources of ATP does your body use during a long aerobic exercise session?
Answer:
ATP already stored in the body, ATP made by fermentation, and cellular respiration. Cellular respiration is able to extract about 38% of the potential energy from glucose.
Explanation:
List the order of event from oldest to youngest.
a)K, I, I, H, P, L, M, N, O, Q
b)K, J, IH, L, M, NO,P,Q
c)Q, O, N, M, L, P, H, I, J, K
d)Q, P, O, N, M, L, H, I, J, K
Answer:
The answer is D.
Explanation:
what does photosynthesis form in a leaf first
Explanation:
The first stage of photosynthesis is the light dependent reactions. These reactions take place on the thylakoid membrane inside the chloroplast. During this stage light energy is converted to ATP (chemical energy) and NADPH (reducing power).
The light-dependent processes make up the initial phase of photosynthesis. On the thylakoid membrane inside the chloroplast, several processes take occur. In this phase, light energy is transformed to ATP and NADPH, two chemical energies (reducing power).
What is thylakoid membrane inside the chloroplast?The light processes of photosynthesis are carried out by a system of connected internal membranes called thylakoid membranes in a chloroplast.
Numerous proteins and chlorophyll molecules can be found in each thylakoid membrane. Clusters of chlorophyll molecules are called photosystem.
Plants use chlorophyll pigments to absorb light energy and convert it to electrons, which are subsequently transmitted down a protein chain in the thylakoid membrane.
Therefore, thylakoid membrane inside the chloroplast in which photosynthesis form in a leaf first.
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Is the amount of water on our planet is the same today as it was 5,000 years ago.
Answer:
Yes
Explanation:
Matter is not created nor destroyed (it never disappears) EVER. Therefore, the answer to your question is YES. :3
Use your understanding of the phosphorus cycle to answer the questions provided.
Phosphorus cycles between living things and the
.
Answer:
soil
Explanation:
trust me
Answer:
Soil
Explanation:
I got it right
When a molecule of CARBON DIOXIDE travels out of a lung cell to be
exhaled, the carbon dioxide moves with the concentration gradient using
no energy in the process. What kind of cell transport is this? *
O
Active Transport
O Exocytosis
O Diffusion
O Osmosis
Answer:
The answer would be Diffusion
Explain the difference between food-chain and ecosystem.Explain the difference between food-chain and ecosystem.
Answer:
A food chain shows the transfer of energy through a single chain of animals. For example, energy comes from the sun, a producer uses energy from the sun as food, a secondary consumer eats the primary consumer, a tertiary consumer eats the secondary consumer, and so on. An ecosystem contains many intertwining and interlocking food chains. Ecosystems contain both abiotic and biotic factors.
• Food chain is a chain of species and organisms where energy transferred from one trophic level to another.
• Level of energy transferred decreases as one move from one level to another.
• It is single directional transfer or flow of energy.
• All living species need energy for growth and survival
• Plants are consider producer since they make their food using sunlight, soil and other elements.
• Animals are consider consumers since they gain energy from eating other plants and animals.
Generally we have four Trophic level:
• Producers
• Primary consumers
• Secondary consumers
• Top consumers
Example:
• Vegetation→ Grasshoppers → Frog→ Snake → Eagle
• Plant → Frog → Snake → Peacock
• Interaction between living and non living component i.e. biotic and abiotic factor makes up an ecosystem.
• Biotic factor consists of plants, animals and decomposer.
• Abiotic factor consists of mountains, light, soil, air and water.
• Example: Forest is an terrestrial ecosystem it consist of plants and animal. A lake is an example of aquatic ecosystem aquatic plants and animals.
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Which organ system collects, transfers, and processes
information?
Answer:
Its your nervous system. I searched it up because I was pretty sure it wasn't the Brain
Muscular- Provides movement, support, and heat production
Nervous- Collects, transfers, and processes information and directs short-term change in other organ systems
An orchid is found in the lower canopy of a tropical rain forest. It does not grow from the ground but grows on a tree. Therefore , an orchid is an :
Answer:
Epiphyte
Explanation:
The correct answer would be an epiphyte.
An epiphyte is a plant that grows on another plant for support only. Epiphytic plants are capable of manufacturing its own food using photosynthesis and perform every other life processes independently but only depend on another plant for anchorage. All their material requirements such as water and minerals are derived from the air surrounding them.
write the procedure to observe human cheek cell
Answer:
To observe the cheek cell,
Take a tooth pick use its blunt side to scrap inside the mouth. You will see some deposition on the blunt side of tooth pick, make a smear on the clean slide in the center using that tooth pick. Add a drop of methylene blue solution and place a coverslip, make sure that bubbles are avoided i.e. coverslip should be placed in the inclined manner. Remove the excess solution and observe it under the microscope first under 4X and then under 10X.Observation:
The cells observed are squamous epithelial cells. The small blue dots seen inside will be the bacteria from our teeth and mouth.One property that all particles of
matter have in common is they
a. never move in solids.
b. only move in gases.
c. move constantly.
d. None of the above
Please answer fast due in 30 mins. This is anatomy and physiology.
These are the questions i have to answer
Group of answer choices
1) arrector pili
2) artery
3) dermis
4) epidermis
5) hair follicle
6) hair shaft
7) hypodermis
8) Meissner's corpuscle
9) nerve endings
10) Pacinian corpuscle
11) papillary layer
12) pore
13) sebaceous gland
14) sweat gland
15) vein
Here are each of the answers
A) Upper layer of skin composed of mostly dead cells.
B) Produces hair.
C) Dead part of the hair that projects from the surface.
D) Has fingerlike projections that penetrate into epidermis to provide nutrients.
E) Thick layer of skin that contain nerves; blood vessels.
F) Muscle that pulls hair upright .
G) Carries blood toward the skin.
H) Anchors the skin to underlying organs.
I) Opening of a sweat duct.
J) Nerve receptor that detects touch.
K) Carries blood away from the skin.
L) Produces sweat.
M) Produces sebum.
N) Receptor that detects deep pressure.
O) Detect pain.
Answer:
Explanation:
I hope you get this in time