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Please help
Colorblindness is a sex-linked trait that is caused by a
common X-linked recessive gene. In the Punnett square
to the right what is the probability of the female offspring
being colorblind?
A) 50%
B) 100%
C) 75%
D) 0%
Answer:B
Explanation:
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HURRY THIS IS AN EXAM PLZ
The population of bison in a prairie ecosystem has significantly declined. What will most likely happen to the grass
population the bison feeds on?
The grass population will increase.
b. The grass population will decrease.
C. The grass population will be wiped out.
d. The grass population will remain unchanged.
Answer:
The grass population will increase
Answer:
The grass population will increase
Which land biome is characterized by extremely cold temperatures, very dry and windy harsh
conditions, and having a permanently frozen layer of subsoil called permafrost?
A. Deciduous Forest
B. Tundra
C. Tropical Rainforest
D. Desert
E. Grassland
F. Boreal Forest
Answer:
B Tundra.
Explanation:
Tundra winters are long, dark, and cold, with mean temperatures below 0°C for six to 10 months of the year. The temperatures are so cold that there is a layer of permanently frozen ground below the surface, called permafrost. This permafrost is a defining characteristic of the tundra biome.
Which cellular structures would you find in plant cell but not in an animal cell?
Answer: cell wall and lysosomes
Explanation:
PLEASE HELP!!!! This is a situation so major! My life depends on it!!!
Answer:
The lighter moths would be more suitable and the darker moths would eventually die out since they have no camouflage, thus an influx of lighter moths will emerge.
Explanation:
Evidence supporting biological evolution is found in the fossil record and in
a. Adaptations to changing environments
b. Similar anatomies and embryos
c. Offspring with various traits
d. Layers of sediments
Answer:
similar anatomies and embryo
Explanation:
evidence of evolution include
fossil records
comparative anatomy
Which of the following is organized from smallest to largest?
A Chromosome, gene, nucleic acid
B Nucleic acid, chromosome, gene
C Nucleic acid, gene, chromosome
D Gene, chromosome, nucleic acid
5. Endoplasmic reticulum
(1 Point)
O plant
O animal
O both
6. Golgi apparatus or Golgi body
(1 Point)
O plant
O animal
O both
7. Lysosome
(1 Point)
O plant
O animal
O both
8. Mitochondria
(1 Point)
O plant
O anima
O both
Answer:
5) Both
6) Both
7) Animal
8) Both
What are the fifteen different structures found within eukaryotic cells?
Answer:
cell membrane, nucleus, nucleolus, nuclear membrane, cytoplasm, endoplasmic reticulum, Golgi apparatus, ribosomes, mitochondria, centrioles, cytoskeleton, vacuoles, and vesicles.
Explanation:
sorry but these are only 13
______________________ are segments of DNA found in chromosomes that give instructions for producing a certain characteristics
Answer:
Genes
Explanation:
The original bacteria kingdom was divided into two separate kingdoms based on analysis of their (fill in the blank) RNA sequences.
They are divided into two separate kingdoms based on analysis of their
r RNA sequence.
Woese and his colleagues suggested that the original bacteria kingdom should be divided into two new kingdoms, called Eubacteria and Archeabacteria.What is archea bacteria?Archea bacteria are a group of microorganisms considered to be an ancient form of life It is evolved separately from the bacteria and blue-green algae, and they are sometimes classified as a kingdom.To know more about archea here
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Cancer is a disease caused by mutations. Yet in most instances, if a parent tragically dies from cancer, this does not put their child at a greater risk than a person who parents don't develop cancer. How can cancer be caused by mutations and ot be heritable?
a. most cancers arise from mutation in germ line cells
b. mutations that cause cancer occur on specific cells, such as sex cells
c. mutations caused by environmental agents, such as tobacco smoke, occur in somatic cells
d. mutations that cause cancer are specific and cannot be passed on regardless of the type of cell they occur in
Answer:
c. mutations caused by environmental agents, such as tobacco smoke, occur in somatic cells
Explanation:
just because you're parents smoked and got lung cancer doesn't mean you'll get lung cancer. (unless you're breathing the smoke, but that's different from inheriting it.)
If the DNA code is CCG-ATT. What does the mRNA will code for? *
Why are plants like grasse able to
reproduce more quickly than others?
A.) The pollen is able to spread with the wind farther and faster.
B.) The seeds are able to fertilize and grow in the soil at a faster rate.
C.) The root may grow horizontal rhizomes that make new shoots.
Answer:
C.) The root may grow horizontal rhizomes that make new shoots.
Explanation:
Plants like grasses able to reproduce more quickly than others because their roots grow horizontal rhizomes into a new shoots. These grasses spreads in the soil due to movement of rhizomes horizontally and grows its shoot with this movement. This spreading helps the grasses to make carpets in the grounds and has the ability to grow faster than other plants so we can say that growth of horizontal rhizomes is responsible for quick growth of grasses.
Which explanation best describes why sexually reproducing organisms have greater genetic
variation than asexually reproducing organisms?
Helppp
Answer:
think of it this way lol
Explanation:
In asexual reproduction, you are essentially producing clones of the parent. There is no genetic variation between parent and offspring - think of mitosis.
In sexual reproduction, you have several chances for genetic variation. The first occurs in meiosis 1, when homologous pairs line up and crossing over occurs. Then in meiosis 2, different combinations of chromosomes (some from mother, some from father) could end up in the gamete cells. Finally, when the gametes (egg and sperm/spore) come together in fertilization, that represents a brand new combination of chromosomes, and therefore alleles, than either of the parents had.
Examples of how species can increase the species chance of survival
Answer: adaptation would help a sped iss survive
Explanation:
5. When is extinction of a species most likely to occur?
A)when environmental conditions remain the same and the proportion of individuals within the species that lack adaptive traits increases
B)when environmental conditions change and the members of the species lack adaptive traits to survive and reproduce
C)when environmental conditions change and the adaptive traits of the species favor the survival and reproduction of some of its members
D)when environmental conditions remain the same and the proportion of individuals within the species that possess adaptive traits increases
Answer:
Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).
The extinction of a species is most likely to occur when environmental conditions change and the members of the species lack adaptive traits to survive and reproduce.
What do you mean by Species?Species may be defined as a group of organisms that can reproduce naturally with one another and create fertile offspring.
If the members of species do not have adaptive traits to survive and reproduce, they will definitely become extinct in near future.
This is because the relative fitness is directly related to the appearance or existence of particular species in the habitat.
Therefore, the extinction of a species is most likely to occur when environmental conditions change and the members of the species lack adaptive traits to survive and reproduce.
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Most clouds appear here, mainly because 99% of the water vapor in the atmosphere is found in the :
A: mesosphere
B: stratosphere
C: thermosphere
D:troposphere
Explain the process of photosynthesis in a plant in detail.
Answer:
Photosynthesis is the process through which plants convert light energy from the sun to chemical energy. The chemical energy is then stored as sugar. During the process of photosynthesis, plants capture light energy and use it to convert water, carbon dioxide, and minerals into oxygen (released into the air) and glucose (stored in the plant and used as food).
Explanation:
The plant takes in carbon dioxide in the atmosphere through the stomata on its leaves. It is worth noting that there are some stomata on the stems as well.
Water gets into the plant mainly through the roots and finds its way to the leaves, where photosynthesis occurs. Plant roots are specially designed to draw water from the ground and transport it to the plant leaves through the stem.
Chlorophyll, the green coloring matter of the leaf, traps the energy from sunlight as it shines on the leaf. It is worth noting that it is chlorophyll that gives the leaf its green color.
The solar energy is used to break water down into hydrogen and oxygen. Then hydrogen is combined with carbon dioxide to make sugar, which is food for the plant. Oxygen is released as a byproduct through the stomata.
Answer:
The roots absorb water and nutrients. Water is carried to the leaf by the xylem in the stem. Carbon dioxide enters the leaf through the stomata. Energy from the sun is captured by chlorophyll in the chloroplasts. The process begins once these three reactants are present. Sunlight provides energy for a series of chemical reactions. Molecules break apart and join with other molecules to form glucose, which is a sugar or food for the plant, and oxygen, which is released into the air.
Explanation:
Sample Response on edge
How does burrowing benefit toads?
Answer:
Burrows provide shelter from predators and extreme temperatures. For these reasons, animals have used burrowing behavior for a very long time. It helps frogs and toads
Explanation:
What evidence from Irina's experiment can be used to show the relationship among light,oxygen, and sugar in photosynthesis
The evidence from Irina's experiment can be used to show the relationship among light, oxygen, and sugar in photosynthesis is that green plants prepare their own food in the presence of sunlight.
What is photosynthesis?Photosynthesis is defined as the the process by which green plants prepare their own food in the presence of sunlight and the heat energy converted into light energy and due to this reason green plants are known as the autotrophs.
Leaf has been known as the basic site of the photosynthesis it means that process of the photosynthesis occurs in the leaf. The main function of the leaf has to produce food material for plants which will help plants to get nourished.
There has been mainly two types of leaves and these are the simple and compound leaves. The simple leaf has been one in which single lamina has been attached to the stem by the help of petiole and compound leaf is the one in which lamina is divided into leaflets.
Therefore, The evidence from Irina's experiment can be used to show the relationship among light, oxygen, and sugar in photosynthesis is that green plants prepare their own food in the presence of sunlight.
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what are some of the services that a healthy biodiversity provides for everyone?
Answer:
it gives a greater variety of crops
Is convection related to deep ocean currents and thermohaline circulation?
-No - convection is not used to describe or explain ocean currents.
- Yes - convection explains why the colder and denser waters sink and why the warmer, less dense waters rise.
-Yes - convection causes cold water to rise to the surface.
-No - convection is not applicable on large scales.
Answer:B
Explanation:
Yes - convection explains why the colder and denser waters sink and why the warmer, less dense waters rise.
Answer:
Yes - convection explains why the colder and denser waters sink and why the warmer, less dense waters rise.
Explanation:
took the thingy
Which occurs in the integumentary system after a deep injury occurs to the system?
Multiple choice question.
A)
Red blood cells fight off pathogens.
B)
Blood quickly clots to form a scab.
C)
Epidermis cells increase their size.
D)
Dermis cells close the injured vein.
Answer: The correct answer is B
Describe how the regeneration of the anole's tail showed both cell division and cell differentiation.
Please help need answers quick!!!
Answer:
In adult organisms the regenerative capacity of certain organs or tissues can be limited, resulting in an important clinical challenge for physicians and scientists [1-3].
Regeneration involves the capacity for renewal or recomposition of tissues, organs or even organisms, after considerable physical injury or damage, resulting from pathologies, tumors, congenital diseases or traumas, for example. As a consequence of tissue regeneration, both the composition and the tissue properties are restored, and the newly formed tissue is highly similar to the original tissue. The regenerative capacity is directly related to the presence of stem cells or progenitor cells, which are capable of proliferation and differentiation [4,5]. Tissues that maintain a high proliferative capacity, such as the hematopoietic system, have regenerative capacity even in adult organisms [6].
Cell proliferation occurs in repair processes in general, accompanied by intense production of extracellular matrix, with large amounts of collagen, resulting in the formation of fibrous tissue to occupy the injured area. Although there is lesion filling, both the composition and the tissue properties are different from the original tissue, and the tissue organization pattern is not restored, leading to an altered performance of its functions [2]. Skin healing processes with the presence of scars are examples of tissue repair [3].
Besides the natural processes of regeneration and repair, it is possible, through medical intervention, to fill lesions with natural or synthetic materials, aiming at the recovery of the compromised area, and conferring certain properties to the tissue, avoiding, for example, exacerbation of the initial lesion or the evolution of degenerative processes [1,7].
The three approaches can be used in tissue engineering, targeting regenerative medicine, as they allow the recovery of compromised areas in different degrees. However, the primary objective is regeneration, recomposition of the original tissue and resumption of the biomechanical and molecular properties, with the normal performance of their functions [1,7-8].
Tissue regeneration involves cell recruitment, growth, proliferation and differentiation, with the latter representing a crucial stage for the success of regeneration, avoiding the formation of fibrous tissue characteristic of the repair [9-12]. Tissues with greater regenerative capacity, such as the skin and liver, intrinsically present cells able to migrate to occupy the affected region, and the same cells maintain the proliferative capacity, enabling occupation of the lesion [3]. In other tissues the regenerative capacity is even more impaired. In the cartilage, for example, the cells remain embedded in the extracellular matrix, and the absence of blood vessels inhibits the presence of other types of component cell in the tissue; even the cell migration and proliferation processes are compromised. In general, regeneration and repair processes do not occur naturally in these cases, requiring surgical intervention to stimulate the subchondral bone marrow, thus enabling the presence of cells capable of tissue repair in the compromised area [13]. Other scientific techniques and methodologies seek alternatives to enable the processes both of repair and of tissue regeneration [9-12,14-16].
Anyhow the final stage of the abovementioned processes, cell differentiation, is critical. An understanding of the mechanisms that lead to the differentiation process in adult organisms allows the proposition of improvements in existing technologies and of alternatives geared towards the optimization of guided tissue regeneration processes, in regenerative medicine.
How would scientists know if population were increasing or decreasing over time
who knows at this point. i dont even know what day it is.
list two ways that trees help cities.
Answer:
Trees give off oxygen that we need to breathe. Trees reduce the amount of stormwater runoff, which reduces erosion and pollution in our waterways and may reduce the effects of flooding.
Explanation:
Hope that helps
Answer: They help produce oxygen to reduce pollution
They help against climate change
Explanation: U got this purrrr
hehe guess what- I need help
Answer:
a) another living cell
Explanation:
"All living cells arise from pre-existing cells by division."
Answer:
a; another living cell
Explanation:
according to cell theory and a guy named Rudolf Virchow, "all cells must come from pre-existing cells."
that basically mean that the cell in the picture had to have come from a living cell, not energy from the sun, or a multicellular orgasm.