Mendel then mixed these plant lines for purebreeding and noted the characteristics of the hybrid offspring. All the first-generation (F1) hybrids, he discovered, resembled one of the parent plants.
What distinguishes progeny from a hybrid?
"Progeny" refers to a child. A simple descendant, a child. A hybrid, however, is completely different. A hybrid is produced when two homozygous creatures mate and the progeny's genetic make-up combines the two. The first hybrid generation, or F 1 progeny, resembles either of its parents.
What does hybrid mean?
What Exactly Is a Hybrid?Definition of hybrid In terms of biology, a hybrid is described as the product of sexual reproduction combining the traits of two creatures belonging to distinct breeds, species, varieties, species, or genera.
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explain the differences between the particles of a pure substance and the particles of a mechanical mixture
Answer:
A substance is pure if it is a single substance, and it is made up of only one type of particle. If there is more than one substance, and therefore more than one type of particle, it is a mechanical mixture, the particles can be easily distinguished, due to their non-uniform composition. The composition of a mechanical mixture is variable and their components may be separated by physical or mechanical means because they are not chemically bound.
Explanation:
A pure substance is one that has a composition and characteristic properties that do not change, whatever the physical conditions in which it is found; that is, the physical transformations do not affect it. In other words, pure substances will be made up of particles that are identical to each other. Mechanical mixture are the result of the physical union of two or more substances which are called components, these can be elements or compounds, whose particles do not mix uniformly. The components of the mixtures have different properties, such as the state of aggregation, the density or the solubility. These properties allow substances to be identified and facilitate the separation of the components of a mixture, that is, through physical or mechanical processes we can isolate and obtain the components that make up the mechanical mixtures.
The smallest blood vessels that connect arteries and veins, and allow blood to pick up
and drop off substances with surrounding cells.
Which statements describe components of fitness? (Select all that apply.)
• being free of physical and mental diseases
• performing muscular movement of the body that requires energy
• incorporating cardio and strength training into daily workouts
• having a large support system of friends and family
Answer:
performing muscular movement of the body that requires energy
• incorporating cardio and strength training into daily workouts
The components of the fitness includes performing muscular movement of the body that requires energy as well as incorporating cardio and strength training into daily workouts. The correct options are b and c.
What is fitness?Physical fitness is defined by professionals as "one's capacity to complete everyday tasks with optimized performance, perseverance, and strength while managing disease, exhaustion, and stress and reducing sedentary behavior."
Physical activity can enhance your brain health, assist you in controlling your weight, lower your risk of developing disease, fortify your bones and muscles, and improve your ability to do everyday tasks.
Individuals who sit very little and engage in moderate-to-vigorous physical activity reap health benefits.
Fitness includes performing muscular movements that require energy, as well as incorporating cardio and strengthening exercises into daily workouts.
Thus, the correct options are b and c.
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When resistant bacteria multiply, what do they pass on to the next generation?
Answer:
Antibiotic use promotes development of antibiotic-resistant bacteria. Every time a person takes antibiotics, sensitive bacteria are killed, but resistant germs may be left to grow and multiply. Repeated and improper uses of antibiotics are primary causes of the increase in drug-resistant bacteria.
The resistant bacteria can reproduce rapidly because their competition (the non-resistant bacteria) has been destroyed by the antibiotic. When the resistant bacteria reproduce, they produce genetically-identical copies. These copies will all be resistant to the antibiotics.
Hope this helps :)
Explain why the BREATHING RATE of students increased after exercise. Include information about what happens at the level of body systems and at the cell.
Explain why the HEART RATE of the students increased after exercise. Include information about what happens at the level of body systems and at the cell.
Answer:
When exercising, your body uses more oxygen and produces more carbon dioxide and your muscles also need energy to contract because of this your breathing needs to increase.
Hope this helps :D
Answer:
for why the heart rate increase is because during exercise alot energy is used which means alot of oxygen also used for respiration ,the cells need oxygen to meet the demand of energy so breathing rate increase then to transport oxygen faster then the heart rate also increases.
The rabbit reproduces sexually. If the
parent cells have 16 chromosomes,
how many chromosomes do the rabbit
sex cells have?
Pollination occurs when pollen lands on the -
A. style
B. anther
C. stigma
D. filament
E. ovary
Answer:
C. stigma
Explanation:
"stigma"
Fertilization in flowering plants happens through a process called pollination. Pollination occurs when pollen grains from the anther land on a stigma. After pollen grains land on the stigma, a pollen tube grows from the pollen grain, through the style, and into the ovary.
Organisms that make a product like glucose are:
Please answer
Answer:
Photosynthetic organisms
Explanation:
is mayonnaise real? I heard about it on twitter :/
Answer:
Real question is: is mayonnaise an instrument?!
Explanation:
Give brainiest or suffer the consequences
what is a turgid cell
Answer:
turgid refers to cells or tissues that are swollen from water uptake. Many cell types in many different organisms can become turgid due to water uptake. Some cells will lyse, or split open if they become too turgid.
Answer:
Explanation: turgid refers to cells or tissues that are swollen from water uptake. Many cell types in many different organisms can become turgid due to water uptake. Some cells will lyse, or split open if they become too turgid.
Question 4
Nearly 30 percent of the native flora in the United States is considered to be of conservation concern. Without human intervention, many of these plants
may be gone within our lifetime. For the native birds and mammals of the United States to survive, plant life must be conserved. What product of
photosynthesis do plants provide to all animals?
Your answer:
Oxygen
Carbon Dioxide
Light
Hydrogen
Clear answer
Question 5
Answer:
Oxygen
Explanation:
What types of molecules attach to receptor proteins found in the plasma membrane?
Answer:
Transport proteins, enzymes, receptors, recognition proteins and joining proteins.
Explanation:
Studies have shown that children are especially vulnerable to the effects of ultraviolet (UV) radiation. Tanning beds expose the skin to nearly ten times as much UV radiation as natural sunlight. With that knowledge, a law was passed in some states to prevent individuals under the age of 18 from using tanning beds. Which statement best explains why UV radiation is so harmful?
a) It can increase harmful DNA mutations in cells.
b) Diseases are all caused by exposure to environmental factors.
c) Homeostasis in an organism is increased by the presence of UV radiation.
d)UV Radiation decreases the likelihood that mutations will occur.
Hello there!!
The answer, I think, would be A.
UV radiation can create problems in the correctness of cell replication, which can result in mutated cells.
I hope this answers your question!
Tanning beds can increase harmful DNA mutations in cells. So, the correct option is A.
What are Tanning beds?In order to tan individuals, a tanning bed emits UV radiation (make their skin darker). If someone spends too much time in the tanning bed, it can also burn their skin, much like the sun. Many types of tanning beds exist. Using tanning beds can lead to more damaging DNA alterations in cells.
Special fluorescent lights (16–32 per tanning bed) that produce both visible and UV light are used in tanning beds. They employ a ballast system, like all fluorescent lights, to keep the amount of electricity going to each lamp to a maximum of 100 watts per lamp. A specific acrylic, or clear shield, is used over the bulbs in tanning beds.
Therefore, the correct option is A.
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A keystone species maintains the __ in the ecosystem. A. Energy B. Stability C. Producers
Answer:
i would say A energy
Explanation:
srry if i got it wrong but have a nice day
How do organisms extract and utilize the energy from ATP?
The stable stage that is established in an area as a result of the process of ecological succession is known as the
A) pioneer organism
B) climax community
C) biotic stage
D) heterotrophic community
Answer:
Climax community
Explanation:
Answer:
B is your answer
Explanation:
A drought is a period of unusually low
rainfall. A farmer notices that a well on the farm stops providing water
during a drought. A nearby lake also
has less water in it than usual. Write a
couple of sentences that explains
what has happened to the water table
in the area to cause these results.
In the drought period, the water label usually lowers due to the extreme heat of the sun that forces the water to undergo the process of evaporation and absorb all the water present on the surface.
What is drought?Drought may be defined as a brief period of abnormally dry weather sufficiently prolonged for the lack of water to cause a serious hydrologic imbalance in the affected area.
During severe droughts, people depend heavily on groundwater—the water held underground in aquifers. During these periods, the rainfall is less than normal for several weeks, months, or years, the flow of streams and rivers declines, water levels in lakes and reservoirs fall, and the depth of water in wells gradually increases.
Therefore, in the drought period, the water label usually lowers due to the extreme heat of the sun that forces the water to undergo the process of evaporation and absorb all the water present on the surface.
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The development by scientists of a new color in a rose is the result of
O natural selection
artificial selection
descent with modification
O overproduction
Answer:
Artificial selection.
Explanation:
The development by scientists of a new color in a rose is the result of artificial selection.
4
Some toxic compounds are ingested & retained in the tissues. These pollutants pose special
risks to humans and other organisms high on the food chain because of which process?
(3 Points)
Dose-response
o
Carcinogenesis
Biomagnification
Synergism
Threshold effect
Answer:Biomagnification
Explanation:Cause it’s right fella
Answer:
Biomagnification
Explanation:
What would be an individual with a genotype of XY would be ?
A. not possible
B. a male
C. a dwarf
D. a female
When people eat shrimp, they first pull off an outer covering that in life provided protection to the animal. What is this structure?
Answer:
carapace
Explanation:
the shell which protect the cephalothorax is called the carapace
1. When did stromatolites appear on Earth?
Archean
Hadean
Mesozoic
Proterozoic
Answer:
Proterozoic
Explanation:
Stromatolites appear on Earth in the end of Proterozoic era because Proterozoic extended from 2500 million years to 542 million years. The stromatolites were present on earth about 542 million years ago. The stromatolites present in large number on the sea shores around the world and are considered as the Earth's first visible life form which can be seen through naked eye. These stromatolites were the first known organisms in which photosynthesis occurs and produce free oxygen..
Answer:
Archean
Explanation:
I took the test
Which of the following correctly shows one path that energy would flow through this ecosystem?
Star grass — termite-wildebeest aardvark
O
Hyena — aardvark impala - harvester ant
О
Grasshopper termite-Warthog hare
O
Red oat grass — termite - wildebeest — lion
Answer: g
Explanation:
the breakdown of rock material in its current location is known as? A. erosion B. weathering C. deposition D. landslide
Which statement concerning the climax stage of an ecological succession is correct?
A) It is the first community to inhabit an area.
B) It consists entirely of plants.
C) It persists until the environment changes.
D) It changes rapidly.
Answer:
C) It persists until the environment changes.
Explanation:
Hope this helps
Help plss I don’t get this so can someone plss help me!!
Name two positive effects caused by high biodiversity
means, a lot of life in a particular area
Explanation:
High biodiversity means that a region supports a wide variety of species, while low biodiversity implies that an area supports only a few.
plants realease water into the atmosphere by which two processes?
Answer:
Evaporation and Transpiration
Explanation:
Submit your crime-scene notebook, including responses to the following items:
the date of burial
predicted age, sex, and ancestry of victim
Is there evidence of trauma? Explain.
Is there evidence of disease? Explain.
What does the evidence suggest is the cause of death?
the historical background
a conclusion statement
In addition, submit your number of correct answers for each of the naming exercises and the evidence quiz, as well as the sex, ancestry, and bullet wound of the deceased.
Answer:
what grade is this?
Explanation:
The skeletal system also helps us _____ muscles which are attached to bones by ______ makes our bodies move. Muscles, which are cause the bones to move, which makes our bodies move
Answer:
Dont open that link or they will track you down hope this help so you dont get kidnapped. :)
ask the question again in another one
WHERE ARE THE THREE TYPES OF MUSCLES FOUND?
Answer:
This is the answer I found
hope it is useful for you