The study of the interaction among living things with their non-living environment is Ecology.
The correct answer is the last one. Ecology.
Read the passage to answer the question.
Kangaroos are mammals, like humans. Like other mammals, they reproduce sexually with sperm fertilizing an egg that develops into an embryo. Unlike humans, however, once the embryo consumes its yolk sac to develop, it must be born. The infant is
about the size of a lima bean, mostly undeveloped except for its two front arms. It uses these to climb up its mother's abdomen and into her pouch. Once there, it feeds
on its mothers milk and continues to develop until it's big enough to finally leave. The muscle cells of a kangaroo organize together to form the structures that let a
kangaroo walk, run, and hop, allowing it to avoid predators.
Which term names a group of similar cells working together?
tissue
organ
organism
cell system
Tissue is a term that best describes a group of similar cells working together.
What is a tissue?
First, cells on their own can function individually, they are the basic unit/ building block of every living organism, and they have the ability to grow, multiply and die. The cells in a Kangaroo provide structure for the body.
But, when two or more cells come together to perform a similar function, then they become a tissue. Tissue comprises of similar cells that work together to perform a specific task.
From the passage, connective tissue is formed from muscle cells of a kangaroo that organize together to form the structures that let a kangaroo walk, run, and hop, allowing it to avoid predators.
In summary, group of similar cells form tissues so they could perform a specific function.
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Endotherms are able to maintain a constant internal body temperature. Which is one property of endotherms that allows them to complete this task?A: well-developed lungs that deliver oxygen to the bloodB: a low metabolic rate that releases a small amount of heatC: an insulated body covering, such as fur or feathersD: a thin skin that readily absorbs heat from sunlight
The correct answer is the letter C: an insulated body covering, such as fur or feathers
Endotherms mainly use internally generated heat in order to maintain body temperature. This will cause their body temperature tends to stay steady regardless of the environment. On the other hand, ectotherms depend mainly on external heat sources and their body temperature changes with the temperature of the environment.
Examples of endotherms are birds and mammals
Examples of ectotherms are fishes, amphibians, reptiles, and invertebrates.
Non-pigmented irises (blue eyes) are recessive to pigmented irises (brown, green, hazel, etc). A person with
blue eyes has both parents with brown eyes. How is this possible
Answer:
Genes
Explanation:
Although the parents both have dominant eyes.
The child could have eyes from the grandparents that skipped a generation.
Hope that helped!!
<3
If both parents carry the recessive allele for blue eyes, a blue-eyed person with two brown-eyed parents is possible.
How is this Non-pigmented irises (blue eyes) are recessive to pigmented irises cross possible?Each individual receives two copies of each gene, one from the mother and another from their biological father. In this situation, both parents have the pigmented iris dominant allele (BB or Bb), so both seem to have brown eyes. Both parents, however, may be heterozygous for of the recessive allele for the blue eye gene (Bb), which they could pass on to their offspring with a 25% chance.
If both parents carry the recessive gene, their children have a 25% chance of inheriting two copies of the recessive variant (bb) and so having blue eyes. The blue-eyed person in this scenario inherited an allele that is recessive from each parent, culminating in their blue eye colour.
Therefore, while it is less common for a person with two brown-eyed parents to have blue eyes, it is possible if both parents are carriers of the recessive allele.
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Would the absence of the nucleolus affect the process of protein synthesis? Explain
(HELP NEEDED BY THE NEXT FEW HOURS. THANK U SO MUCH)
The absence of nucleolus will affect the process of protein synthesis because r-RNA is required for protein formation and the synthesis of r-RNA occurs in the nucleolus.
Nucleolus is a small dense structure present inside the nucleus. It is site for r-RNA synthesis. Ribosome assembly also takes place inside the nucleolus. Nucleolus is also known to play part during cell's response to stress.
r-RNA is the ribosomal RNA. It is involved in the formation of ribosome along with some proteins. Ribosome is the most essential machinery for the synthesis of proteins. r-RNA belongs to the category of non-coding RNAs. r-RNA is considered to be a ribozyme.
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QUESTION 17Which of the following best describes the definition of a gene?A collection of polypeptides that fold to form a complex proteinGenetic information that produces a product, either proteins or RNAThe protein product that genetic material producesA section of DNA that produces a single protein product
As we know a gene is the minimal functional part of DNA and code for different traits, these can be proteins, RNA, or other type of regulators, so we can say that the correct option is the number 2
32. Which substance plays a central role as an energy source in humans and ascellulose in plants?A. fatsB. proteinsC. carbohydrates
The main energy source in humans is glucose, which is a monosaccharide. Through cellular respiration, ATP is produced from glucose. ATP is the energy currency of biochemical reactions in the human body. On the other hand, a polymer of this monosaccharide (beta glucose) is cellulose, which is found in plants as part of their cell wall.
We can conclude that the correct answer is:
Answer:C. carbohydrates
What part of the reproductive system is highlighted in the picture attached? i don’t understand
The labeled part is URETHRA
The male urethra has a length of 18-22cm and it conveys urine from the urinary bladder to the exterior opening of perineum. It also provides an exit for the semen.
When the northern hemisphere is tilted towards the sun, what season does itexperience?A. springB. winterC. fallD. summer
When the northern hemisphere is tilted toward the sun (90° North Pole - latitudes between the Equator and North Pole) it is experiencing summer.
Which of the following processes must occur before cell division begins?And why is it not cytokinesis
Let's take a look at the diagram for the cell cycle:
Recall that the order is from G1 phase to Telophase, where cells ready to undergo cell division start in interphase.
Let's define our answer choices:
0. Shrinkage of the nucleus
,1. DNA duplication
,2. Cytokinesis
,3. DNA segregation
We are trying to find which of these answer choices occurs before cell division (which is known as mitosis/meiosis depending on the type of cell).
We can see from the cell cycle diagram that the stages before mitosis would be the G2 phase, the S phase, and the G1 phase.
Let's go through each of our answer choices:
0. Shrinkage of the nucleus - this answer choice ,never, happens in the cell cycle. The nucleus ,dissipates, or ,dissolves, away when the cell is ready to undergo mitosis.
,1. DNA duplication - this answer choice is ,correct,. DNA duplication occurs during the ,S phase,, which is ,before, mitosis (cell division).
,2. Cytokinesis - this is when the 2 cells during mitosis split and become 2 separate cells. This would signify the ,end, of mitosis, so this answer ,would not be correct,.
,3. DNA segregation - this answer choice happens ,during, mitosis. Therefore, this answer choice is not correct.
Therefore, our answer choice is B.
Which cell components are found in both plant and animal
Answer: Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Explanation:
what do new cells do in a chicken egg
When Charles Darwin discover the various fish species on the island of Guadalupe house he was surprised to find so many different but related species in such a small geographical area which of the following best illustrates the correlation between competitive advantage in an individuals traits in a particular environment
When Charles Darwin discover the various fish species on the island of Guadalupe house he was surprised to find so many different but related species in such a small geographical area.
The idea that best illustrate the correlation between competitive advantage in individuals traits in a particular environment is the principle of normal variation which states that:
Members of a population display inheritable variations of traits; and Populations evolve by natural selection. Traits change over time, and then become stable in a population. These are sub-sets of the concept of evolution and natural selection as depicted in the book "The Origin of species"Who is Charles Darwin?Charles Darwin, full name Charles Robert Darwin, was an English scientist whose scientific theory of evolution by natural selection created the cornerstone of contemporary evolutionary research. He was born on February 12, 1809 in Shrewsbury, Shropshire, England and died on April 19, 1882 in Downe, Kent.
Darwin's most extraordinary contribution to science was to finish the Copernican Revolution by defining nature for biology as a system of matter in motion guided by natural laws. The genesis and adaptations of organisms were brought into the realm of science with Darwin's discovery of natural selection.
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How do you find telophase if
8% of the cells were in prophase and the cell cycle was 10 hours long, then prophase would last 8% of 10 hours, or 0.8 hours (48 minutes). Use percentages to estimate the duration of each phase of the cell cycle.
Answer:
You can use your data to estimate the duration of each phase of the cell cycle. For example, if 8% of the cells were in prophase and the cell cycle was 10 hours long, then prophase would last 8% of 10 hours or 0.8 hours
explanation:
Based on the result, which is the most effective antibiotic in this example?1234
What we see around three of the antibiotic disks is the area in which the antibiotics stopped the bacteria from growing. It's called a zone of inhibition and it creates an area where the bacteria haven't grown enough to be visible. So, in order to understand which is the most effective antibiotic we must look at its zones of inhibition and find the one with the biggest zone. Therefore, the correct answer is 3, as it is the one with the bigger zone of inhibition.
Which action is a response to external stimuli?drinking when thirstyeating when hungrybreathing hard when exercising because of a drop in oxygen levelswearing sunglasses to protect eyes from UV rays
wearing sunglasses to protect eyes from UV ray is reasponse to an external stimuli.
the UV rays from the sun are the external stimuli, while the oter option are internal stimuli
bones will usually heal after they have been severely damaged so long as the cellular components of the endosteum and periosteum survive and there is a(n)
Answer:
ossification Center
Explanation:
Compare the consumption of macromolecules in Inuit diet to the American diet.
American diet consists of excess sodium, saturated fat, refined grains, and calories from solid fats and added sugars while Inuit diet consists mainly marine foods like shell fish , whales or birds animals mainly duck bear and plants that include roots and berries .
Inuit diet is not healthier then American diet , this kind of diet mostly consists of non vegetarian food , that can be eaten raw to supply essential nutrients like whale skin , seal brain . this diet is generally taken by the people who live in frozen snow covered area .
On the other hand American diet includes Fried foods, Processed foods, Processed meats, Refined grains and Red meat.
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2. Sickle Cell Anemia is inherited as an autosomal recessive trait. What would be
the chances of a non-carrier female and a man with sickle cell anemia having
afflicted children?
a) Assign Symbols
b) Show the cross
c) Punnett square
d) Genotypic ratio
e) Phenotypic Ratio
The chances of a non-carrier female and a man with sickle cell anemia having afflicted children would be 25%.
What is anemia?
When you have anaemia, your body does not create enough healthy red blood cells to supply your tissues with just enough oxygen. Being anaemic, or having low haemoglobin levels, can make you feel tired and fragile. Anemia can manifest itself in a variety of ways, each with its own set of causes. Anemia can be minor to severe, and it can be short-term or long-term. Anemia is often caused by a combination of factors. Consult a doctor if you suspect you have anaemia. It could be an indication of a serious sickness. Treatments for anaemia can range from taking vitamins to seeking medical help, depending on the underlying cause. A balanced, diverse diet may help you avoid some types of anaemia.
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76) In bacteria, the unit of DNA that contains multiple genes under the control of a single promoter is called ____ this unit is referred to as _____ mRNAa. an operator, a polycistronicd. an operon, a monocistronicb. a template, a structurale. a template, a monocistronicc. an operon, a polycistronic
As we know an Operon is a genetic unit formed by a complex set of genes (polycistron c)that can self-regulate, itsis composed of 3 main factors: Promoter, operator, and regulatory gene. Therefore we can asaythat tthe correct answer is option C.
The diagram shows a cross between a plant with white flowers and a plant with red flowers.The offspring is a plant with pink flowers.Which pattern of inheritance is shown?
Answer: Incomplete Dominance
Explanation:
Incomplete dominance is described by a phenotype that is not completely dominant over another. Therefore, it will be a "blending" of colors in the case of this question, therefore the petals are pink.
Which of the following describes organisms that need to obtain energy from other organisms?Select all that apply.A. heterotrophsB. autotrophsC. consumersD. producers
Remember that by definition, a heterotroph is an organism that cannot make its own food, but instead obtains its food by consuming other organisms. That is, a heterotroph is an organism that eats other organisms (plants or animals) for energy and nutrients. For this reason, heterotrophs are considered consumers.
We can conclude that the correct answer is:
Answer:The correct answers are:
A. heterotrophs
C. consumers
select all the true statements : A) Both plant and animal cells can have mitochondria;B) In animals cells, chromosomes contain the master plan for cell activities and cell development;C) An animal cell does not have a nucleus, but a plant cell can have one.
Animal cells and plant cells are eukaryotic cells, that is, their genetic material (DNA) is stored within the nucleus.
These two types of cells, even though they are eukaryotes, still have some differences.
Plant cells have vacuole, chloroplast, and cell wall (these structures are absent in animal cells). Mitochondria are an organelle that is present in both animal and plant cells.
The correct statements are A and B:
A) Both plant and animal cells can have mitochondria;
B) In animal cells, chromosomes contain the master plan for cellular activities and cell development;
Statement "C" is incorrect because both animal and plant cells have a nucleus.
Why natural selection is not just a theory?
In science, the meaning of "theory" is different than the one we use commonly.
In the day-to-day, "theory" means a supposition or speculation, while a scientific theory is an explanation of a certain aspect of nature that is supported by evidence collected from several sources, and that has been tested repeatedly following the scientific method. A scientific theory is considered to be a truth, which is the case for natural selection and evolution.
What blood types are possible for a child whose parents both have AB bloodtype?I. AII. BIll. ABIV. OA. Only IB. Ill and IVC. I and IlD. I, Il, and Ill
They are asking us the possible blood types for a child of parents with AB blood type.
This means that both parents have one allele for antigen A (Iᵃ) and one allele for antigen B (IᵃIᵇ):
Mother: IᵃIᵇ
Father: IᵃIᵇ
Just from that, the child cannot be type O, because there is no allele for not having any antigen (i).
Let's look at the Punnet's square:
As we can see, the child of this couple could have blood type A, B, or AB.
This means the right answer is D. I, Il, and Ill
how do i write the answer for this would u say. It needs about 100 words or less and im not sure about it at all.
Okay. We can say that it is possible to identify the cycle cell stage the cell are getting through in the shown diagram. It's metaphase since the nuclear envelope denatures itself, and chromosomes start to get visible on the cytoplasm, aligning themselves along the equatorial cell axis.
Which example best describes a computer model that could be used to better
understand the function of the brain?
A. A simulation predicting the paths of electrical impulses through
the brain
B. A detailed re-creation of the brain in modeling clay that shows the
positions of its structures
C. A description of the brain as a computer processor that interprets
encoded information
D. A formula for calculating the time it takes a message from the
brain to reach a different part of the body
Answer: Which example best describes a computer model that could be used to better understand the function of the brain?
A. A simulation predicting the paths of electrical impulses through the brain is the best example of a computer model that could be used to better understand the function of the brain.
Explanation:
In this simulation, a computer program would be used to create a virtual representation of the brain and simulate the movement of electrical impulses along different pathways. This can help researchers and scientists study how the brain processes information and how different areas of the brain communicate with each other.
By using this computer model, scientists can observe the patterns and pathways of electrical activity in the brain, which can provide valuable insights into how the brain functions. This can help in understanding various neurological disorders and developing treatments for them.
Which of the following BEST Don’t completes the above analogy?
The correct option is the first one, Pancreas is to Insulin, as Liver is to Glucagon. The analogy refers to the organ and compound they interact with. Pancreas produces glucagon which interacts with the liver, while liver produces insulin like growth factors, which interacts with the whole body, including the pancreas.
Write the balanced equations for the process of your organism uses to make food / energy ( Photosynthesis , respiration, or both).My organism is great white shark
Photosynthesis is a mechanism of sugar production that is carried out by plant organisms possessing chloroplasts. Most animals cannot perform photosynthesis because they do not have chloroplasts, the great white shark is one of them.
On the other hand, respiration is a mechanism for obtaining energy that is performed by all organisms, which can be aerobic (in the presence of oxygen) or anaerobic (in the absence of oxygen). In cellular respiration, sugars such as glucose are metabolized to obtain energy.
The equation changes depending on the type of breathing that is performed, but in this case, the white shark performs aerobic breathing, so the equation would be:
Answer:
Photosynthesis is a sugar-production mechanism carried out by plant organisms possessing chloroplasts. Most animals cannot perform photosynthesis because they do not have chloroplasts, the great white shark is one of them.
On the other hand, respiration is a mechanism for obtaining energy performed by all organisms, which can be aerobic (in the presence of oxygen) or anaerobic (in the absence of oxygen). In cellular respiration, sugars such as glucose are metabolized to obtain energy.
The equation changes depending on the breathing that is performed, but in this case, the white shark performs aerobic breathing, so the equation would be:
Explanation:
Which dissolved substance do aquatic plants absorb from water during photosynthesis The choices are: carbon dioxide, ATP, oxygen, nitrogen
In the case of aquatic plants those that are totally submerged like seagrass, do photosynthesis as well as terrestrial plants, which need light carbon dioxide and expel oxygen. However, carbon dioxide in water dissolves so aquatic plants obtain it not in a gaseous way but in a dissolved way, so we can say that he correct answer is carbon dioxide.
How do trees give earth all its oxygen?
*Oxygen is an essential element in the atmosphere that helps living organisms stay alive.
*Tress gives Earth oxygen through the process of photosynthesis. Plants, such as trees, capture sunlight and use it to split carbon dioxide and water. The product of it is sugar which releases oxygen into the atmosphere as a by-product of the process.