is the statement true or false? plant cells have chloroplast, but no mitochondria?
Answer:
False
Explanation:
Plant cells have both but animal cells have only the mitochondria minus the chloroplast.
Worms live in a habitat of wet soil which of the following scientist is most likely to have believed that worms are made of soil
During what process do producers convert carbon dioxide into carbohydrates?
Carbon dioxide is converted into carbohydrates during the carbon cycle
Carbon dioxide is converted into carbohydrates during cellular respiration
Carbon dioxide is converted into carbohydrates during the eating process
Carbon dioxide is converted into carbohydrates during photosynthesis
Answer:
Answer is d
Explanation:
CO2 is converted into carbohydrates during photosynthesis
Hope u understand
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hey i really need help in deciding the answer for the question
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If a base is deleted, a _____ mutation occurs.
A. substitution
B. insertion
C. point
D. frameshift
Answer:
Option D. A frameshift mutation occurs.
Answer:
D. frameshift
Explanation:
If a base is deleted, a frameshift mutation occurs. Hope it helps you !!
What causes 37% of all pollution?
Answer:
There are a variety of examples that cause the problematic issue of pollution- Usually air pollution can be caused by the alteration of gases, solid and liquid particles suspended into the air. If we were to contemplate on how human causes lead to pollution, vehicles exhaust fumes are possibly one of the most affecting in air pollution, as well as the exhaust from industrial factories and plants. Human reasons have majorly led to pollution.
A newly developed drug causes users to lose some muscle control and slur their words, The drug also results in a slowing of central nervous system activity. MOST likely this drug is a:
A newly developed drug causes users to lose some muscle control and slur their words, The drug also results in a slowing of central nervous system activity. Depressants slow the central nervous system.
What is Nervous system?Signals are sent from the brain to the rest of the body, including the internal organs, via the nervous system. Thus, the nervous system's activity regulates a variety of functions, including the capacity to move, breathe, see, and think.
The nerve cell, or neuron, is the building block of the neurological system. There are around 100 billion neurons in the human brain. A neuron has a cell body, which contains the cell nucleus, as well as distinct extensions known as axons and dendrites.
Different neuronal types control or carry out various functions. For instance, motor neurons help the brain send signals to the muscles that cause movement.
Therefore, A newly developed drug causes users to lose some muscle control and slur their words, The drug also results in a slowing of central nervous system activity. Depressants slow the central nervous system.
To learn more about Nervous system, refer to the link:
https://brainly.com/question/29355295
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A rare orchid has been found in the mountains in China.
The orchid has pale yellow flowers.
DNA analysis of the genome shows that it is an ancestral species.
All other present day orchids evolved from this ancestral species millions of
years ago.
One present day species has bright purple flowers.
Describe how an orchid with bright purple flowers may have evolved from the
ancestral species which has pale yellow flowers.
[4 marks]
Answer:
a mutation in the germinal line changed the phenotype to bright flowers which were capable of attracting more pollinators compared to yellow flowers. Subsequently, this mutation was selected by natural selection, thereby increasing its frequency in the population
Explanation:
A mutation is any change in the nucleotide DNA sequence of the genome of a particular organism. Mutations can be divided into 1-germinal mutations (i.e., mutations that occurred in the gamete cells) which can be passed on to offspring, and 2-somatic mutations (i.e., mutations that occurred in the somatic cells), which cannot be inherited. Moreover, mutations can be neutral, deleterious or beneficial depending on the environment in which the organism lives. When a germinal mutation is beneficial, the organism carrying the mutation will have more chances to survive and reproduce (i.e., a higher adaptive fitness), thereby the organism will have more chance to pass this mutation to the next generation and the mutation will increase its frequency in the population.
Hey guys! can someone write a summary on the topic of cloning?
Answer: Cloning describes the processes used to create an exact genetic replica of another cell, tissue or organism. The copied material, which has the same genetic makeup as the original, is referred to as a clone. The most famous clone was a Scottish sheep named Dolly
Explanation:
Answer:
Write your own work. I mean I know you did just had my answer deleted because I called you out the first time. So take the advice
Explanation:
1. Match each term with the correct definition. a. Abdomen b. Chest c. Genitals d. Pelvis e. Sternum ____ External reproductive organs ____ The middle part of the trunk, containing the stomach, liver and spleen ____ The upper part of the trunk, containing the heart, major blood vessels and lungs ____ Long, flat bone in the middle of the front of the rib cage, also called the breastbone ____ The lower part of the trunk, containing the intestines, bladder and reproductive org
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A. Abdomen:- The middle part of the trunk, containing the stomach, liver and spleen.
B. Chest:- The upper part of the trunk, containing the heart, major blood vessels and lungs.
C. Genitals:- External reproductive organs .
D. Pelvis:- The lower part of the trunk, containing the intestines, bladder and reproductive org.
E. Sternum:- Long, flat bone in the middle of the front of the rib cage, also called the breastbone.
Thanks Hope it helps.Which statement is the best description of an ecosystem?
Answer:
biological community of interacting organisms and their physical environment
How would you describe the process of genetic information being passed from parent to offspring in organisms like bacteria?
A. The organism undergoes mitosis and creates genetically diverse offspring
B. The organism undergoes meiosis and creates genetically diverse offspring
C. The organism undergoes binary fission and creates genetically identical offspring
D. The organism undergoes sexual reproduction and creates genetically identical offspring
Answer:
C. The organism undergoes binary fission and creates genetically identical offspring
Explanation:
This because binary fission is the means of reproduction in prokaryotic organisms like bacteria. This refer to the process where a single cell divided into two or more and each looking more exactly like the parent cell..
the process of binary fission, a particular parent cell replicate its genetic material or DNA and then divides into two parts by a process called cytokinesis and each new organism produced then receive one copy of DNA. This occur in bacteria
Landfills are one source of CO2. As garbage decomposes, it releases CO2 into the air. Can you think of at least one
way that humans can reduce the amount of trash they dump in landfills?
Answer:
Recycling
Explanation:
Less garbage will be thrown away
what is the central Nervous system (cns)
Answer:
the complex of nerve tissues that controls the activities of the body. In vertebrates it comprises the brain and spinal cord.
Explanation:
^
what are the functions of the following? (Make it simple)
Vacuole
Cell Membrane
Answer:
Vacuole- Function of vacuole is they help to maintain water and minerals balance in cell.
Cell Membrance- The functions of cell membrane are:
They keep toxic substances out of the cell.It only allows sensitive material to enter and exist in cell.Hemophilia is a rare recessive genetic disorder in which the recessive version of the gene does not produce blood-clotting factors. A woman whose father had hemophilia marries a normal man. They have two children: a boy and a girl. What are the chances of the boy being a hemophiliac? _________ What are the chances of the girl being a hemophiliac? _________ Show your work with a Punnett Square.
Answer:25 , 0
Explanation:
XX©(mother being the carrier as her father was hemophilia- females can only be carrier of hemophilia ) when crossed with normal father produces offspring XX©, XY, XY©, XY. Therefore chances of boy being hemophilia=(1/4)*100=25.
Chances of girl being hemophilia= 0.
7. The _____________ is a collection of buried, long-dead organisms and can tell us information about prior ancestors - the _____________ a fossil is, the ______________ it is in age and the ___________ related it is to modern organisms.
Answer:
Fossil.
Explanation:
Fossil is a collection of buried, long-dead organisms that can tell us information about ancestors of an organism. The physical features of fossil provides information about its relationship with modern organisms. The fossil which is present in very deep in the soil are more older than the fossil that is present in less depth. We can find age of the fossil by using radiometric dating methods which tells us about the existence of fossil on the earth.
A ________ is a unicellular or multicellular organism that is heterotropic; feeding off dead organic matter or a parasite, feeding off living organisms; reproduces through spores.
Answer:
A fungi is a unicellular or multicellular organism that is heterotropic; feeding off dead organic matter or a parasite, feeding off living organisms; reproduces through spores.
Explanation:
FUNGI -: Fungi can be single-celled organisms or multicellular organisms with a great deal of complexity. They can be found in almost any habitat, but the majority of them reside on land, primarily in soil or plant material, rather than in the sea or fresh water. Decomposers are organisms that live in the soil or on dead plant materials and play a vital part in carbon and other element cycling. Some are plant parasites that cause illnesses such mildews, rusts, scabs, and canker. Fungal diseases in crops can cause a farmer to lose a lot of money. Animals are afflicted by a small number of fungus. Athletes' foot, ringworm, and thrush are examples of human skin diseases.
Fungi play an important part in the breakdown of organic materials and in the cycling and exchange of nutrients in the environment. They've long been utilized as a direct source of human food in the form of mushrooms and truffles, as a bread leavening agent, and in the fermentation of a variety of foods like wine, beer, and soy sauce.
Hence , the answer is fungi.
The circulatory system of the frog..
A. carries oxygen to all of the cells
B. carries food to all cells
C. carries water to all cells
D. all of the above
Answer: A
Explanation:
The blood carries oxygen and nutrients to cells and carries waste products away.
In which physiological process does a flower play a role in plants?
A. transport
B. photosynthesis
C. absorption
D. reproduction
In an example of natural selection, ______ cells in cancerous tumors can survive chemotherapy, and these cells go on to divide rapidly in the absence of competition from other cells.
Answer:
1. Drug-Resistant
Explanation:
Quels sont les 2 moyens de reproduction du glaïeul ?
13. Which of these statements about particulate matter less than 2.5 microns in diameter is true?
A. They can cause heart and lung disease.
B. They're produced from nitrogen gas (N.).
C. They're less of a threat than particulate matter that's 10 microns in diameter
D. They're the size of a human hair.
Answer:
Nitrogen Gas
Explanation:
penn foster
lesson 2
page 13
Potassium is the major cation in the body. It plays many important roles, including the excitability of nerves and muscles. Where is this action particularly important
Answer:
in the heart
Explanation:
hope it's help
in VDJ recombination occurs in the Group of answer choices variable region of the heavy chain. constant region of the light chain. variable region of the light chain. Both the light and heavy chain.
Answer:
constant region of the light chain.
Explanation:
The VDJ recombination is defined as the process where the T cells as well as the B cells are randomly assembled from the different gene segments. These are mainly known as the variables (V), the diversity (D) and the gene (G). This is done in order to generate the unique receptors which is also called as the antigen receptors so that they can collectively recognize the different types of the molecules. It mainly occurs in the constant region of the light chain.
please help me in Science grade 8th
Answer:
Both earthquake and volcanoes are concentrated in specific regions.
Explanation:
The distribution of earthquake on earth is concentrated in specific zones where the plate tectonic meets or fuse with each other. Volcanoes are also concentrated in specific regions on the earth. Most volcanoes are concentrated on the edges of continents, on island chains, or long mountain ranges beneath the sea. There is a great relationship between earthquake and volcanoes because volcanic eruptions is the cause of earthquake in a region.
Name the process through which gaseous exchange occurs.
Answer:
Diffusion
Explanation:
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the alveoli and the capillaries in the lungs.
Which would most likely cause a forced migration due to loss of habitat?
a short-term change
a long-term change
death
adaptation
Answer:
short term
Explanation:
Answer:
short
Explanation:
edg
16. The rate of weathering depends primarily upon the area's _______________________.
Answer:
Climate
Explanation:
Hope this is right :)
Sorry if I get it wrong
After initially swallowing food, what is repeated until the food is ready to move on to the Omasum?
A. Acid kills the bacteria.
B. Honeycomb like ridges absorb the nutrients.
C. The animal regurgitates food for chewing until it is ready
for the the next chamber.
D. Gastric juices are secreted to break down food.
Answer:
Gastric juices are secreted to break down food