What is the ultimate energy source for most forms of life on earth?
What is the name for that compound with the formula BaO?
A. Oxygen Baride
B. Barium Oxide
C. Barium Oxygen
D. Oxygen Barine
Some plants carry on photosynthesis without using chlorophyll.
TRUE
FALSE
???
PLEASE HELP
Answer:
false
Explanation:
Recessive genes will always be masked by dominant genes. This is Mendel's principle of 1.dominance 2.recession 3.segregation
Answer:
Option A, Dominance
Explanation:
According to Mendel's principle of dominance , the following can happen
a) Dominance of allele is a form of inheritance of genetic trait in which one allele is recessive to other.
b) The dominant allele can be recessive to any other allele.
c) In a hetero zygote the characteristics associated with a dominant alleles are expressed as phenotype
d) Recessive traits are expressed only in an genotypically homozyous recessive individual
Hence, option A is correct
What is the serous membrane that lines the walls of the thoracic cavity?
The pleura is the serous membrane lining the walls of the thoracic cavity, with a parietal layer against the cavity wall and a visceral layer covering the lungs, and a fluid-filled space in between to reduce friction.
Explanation:The serous membrane that lines the walls of the thoracic cavity is known as the pleura. This thin, double-layered membrane has a parietal layer that lines the cavity wall and a visceral layer that covers the external surface of the lungs. Between these layers is the pleural cavity, containing a small amount of serous fluid that acts as a lubricant, reducing friction during respiratory movements.
There are other serous membranes within the body, including the pericardium that surrounds the heart and the peritoneum that lines the abdominal cavity. These membranes provide a smooth and slippery lining, protect the organs they encase, and help to prevent friction, which could lead to inflammation.
How can carbohydrates, lipids, and proteins be detected in foods?
The branch of the autonomic nervous system that prepares the body for quick action in an emergency is the ________ division.
Your neighbor has fertilized her lawn. several weeks later, she is alarmed to see that the surface of her ornamental pond, which sits at the bottom of the sloping lawn, is covered with a green layer of algae
The reason why there is a green layer of algae was because of the reason that there may be too much fertilizer applied in the lawn. When having too much fertilizer, and it had been rained down—there could have been a possibility of run-off to be flown down on the lawn of which has been sloped and made its way on the pond. By this, it increases the nutrients in the pond, making the algae to grow on it.
The motivation behind why there is a green layer of green growth was on the grounds that that there might be an excess of fertilizers connected in the garden. When having an excess of manure, and it had been poured down, there could have been a probability of run-off to be flown down on the garden. By this, it builds the supplements in the lake, making the green growth to develop on it.
Further Explanation:
Fertilizer:
A fertilizer or manure is any material of normal or engineered beginning that is connected to soils or to plant tissues to supply at least one plant supplements basic to the development of plants. Numerous wellsprings of manure exist, both common and modernly created.
Fertilizer Types:
1. Nitrogenous Fertilizers
2. Natural Nitrogenous Fertilizers
3. Phosphate Fertilizers
4. Potassic Fertilizers
5. Compound Fertilizers
6. Complete Fertilizer (NPK)
uses of Fertilizers:
Nursery workers and business producers use manures. At the point when utilized properly, fertilizer can improve soil surface, advance sound development, and increment yields.
Importance of fertilizers:
Fertilizers are substances containing concoction components, for example, fertilizer or blend of nitrates that improves the development of plants. They offer sustenance to the harvests. At the point when added to soil or water, plants can create resilience against vermin like weeds, creepy crawlies and sicknesses.
Subject: biology
Level: High School
Keywords: fertilizer, fertilizer types, uses of fertilizers, importance of fertilizers.
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Which of the following is not a function of protein? A. Giving cells structure B. Insulating the body C. Helping cells communicate D. Serving as enzymes
Answer: Option B
Explanation:
Proteins can be defined as the large and complex molecules which are made of numerous smaller units of amino acids, each amino acid combines to one another in long chains to form a protein molecule. They provide structure to the body thus known as building blocks of the body. They helps in regulating the body process like enzyme catalysis, breaking down of food, transporting all the essential molecules throughout the body, hormone regulation, movement of muscles, message signaling and many others.
Insulating the body is the primary function of Fats not proteins.
Therefore, the correct answer is "Option B".
Cell structure, communication, and acts as enzymes are the functions of protein but insulating the body is not a function of protein, hence option B is correct.
The form and internal organization of cells, the production of products and the removal of waste, as well as normal maintenance, are all carried out by proteins.
Each protein is uniquely suited for its intended use. Only 20 different combinations of amino acids may be used to make any protein in the human body. Antibodies, contractile proteins, enzymes, hormone proteins, structural proteins, and transport proteins are the seven different categories of proteins.
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how can molecular evidence show species relatedness
Answer:
Nowadays, molecular pieces of evidence are used to show the similarity between two species as the universal molecule- DNA is present in all living organism from lower to higher organisms which code for the amino acids of the proteins.
The differences and similarities between genomes of two different species confirm relatedness as a mutation in genes can show evolutionary patterns which can be summarized as:
differences between base sequences can show the degree of divergence. a large number of differences means species diverged long ago. more similarity in sequence means species are more closely related.Thus, molecular evidence is used to show species relatedness.
A carbon skeleton is covalently bonded to both an amino group and a carboxyl group. when placed in water it
What is the difference between a heterogeneous mixture and a homogeneous mixture?
Question 4 options:
A heterogeneous mixture is a pure substance and a homogeneous mixture is not.
A heterogeneous mixture has particles that are not uniformly distributed, but a homogeneous mixture has particles that are uniformly distributed.
A homogeneous mixture is a pure substance and a heterogeneous mixture is not.
A homogeneous mixture has particles that are not uniformly distributed, but a heterogeneous mixture has particles that are uniformly distributed.
Answer:
A heterogeneous mixture has particles that are not uniformly distributed, but a homogeneous mixture has particles that are uniformly distributed.
how many pairs of electrons do the two oxygen atoms in an oxygen molecule share with each other
When is the manual removal of oil by hand most likely to be used?
A.) When the spill is far out at sea
B.) When the oil has sunk to the bottom
C.) When heavy equipment cannot reach the spill
D.) When the oil has already started to break down
Answer:
Option D, When the oil has already started to break down
Explanation:
When the oil breaks down, there are high chances that it can get absorbed at the surface of beaches consisting of sand, gravel, or cobble which cannot be cleaned otherwise. In such scenarios adsorbents are placed manually to soak the oil spilled on beach. Mostly shorelines are cleaned using these manual processes, otherwise inner oil spills are cleaned by machines only.
Hence, option D is the correct answer.
The pattern of criss-crossing strips of pastry on top of food is called a what?
Final answer:
The weaving of pastry on top of food, especially pies, is known as a lattice. It combines function and beauty, allowing steam to escape and giving a golden brown finish to baked goods.
Explanation:
The criss-crossing strips of pastry on top of food is called a lattice. This technique is often used in baking to create a visually appealing and edible top layer on pies and other pastries. The lattice is essentially a woven pattern created by interlacing long strips of pastry dough over and under each other. One famous lattice-topped pastry is the apple pie, a staple in American cuisine. The lattice top allows steam to escape during baking, which helps to prevent the pastry from becoming soggy. The lattice provides a lovely contrast of texture and color when baked until golden brown.
A vine growing around a lamp post is an example of
Which question is most likely closely related to th field of biology? A) What is the average length of cobra B) What are most rocks made of? C) How fast does earth rotate D)What is the mass of the moon
What are the four weak (noncovalent) interactions that determine the conformation of a protein?
Define radioactivity . if an element has three isotopes, which of them is most likely to be a radioisotope
Radioactivity is the emission of particles and radiation from unstable atomic nuclei. For example, Carbon-14 is a radioactive isotope with 6 protons and 8 neutrons, unlike the stable Carbon-12 and Carbon-13. Carbon-14 decays over time, emitting radiation.
Radioactivity is the spontaneous emission of particles and radiation from atomic nuclei. This process occurs because unstable nuclei seek to achieve stability, emitting energy in the form of radiation.
To give an example, Carbon-14 (C-14) is a well-known radioactive isotope, which is commonly used in radiocarbon dating. Carbon-14 has 6 protons and 8 neutrons, whereas its stable isotope, Carbon-12 (C-12), has 6 protons and 6 neutrons.
Carbon-12 (C-12): Protons = 6, Neutrons = 6Carbon-13 (C-13): Protons = 6, Neutrons = 7Carbon-14 (C-14): Protons = 6, Neutrons = 8 (Radioisotope)Among these isotopes, Carbon-14 is a radioisotope due to its unstable nuclear configuration, which leads it to emit radiation as it decays over time.
According to the phylogeny tree which two phyla are most closely related ?
In a phylogenetic tree, Species 1 and Species 2 are more closely related to each other than to Species 3 if they share a more recent common ancestor. The tree is continually revised based on new molecular and morphological evidence. The three major domains of life are Archaea, Bacteria, and Eukaryota.
To assess the relationship between two phyla according to a phylogenetic tree, one must look at the point where the branches representing the phyla connect to a common ancestor. The closer the common ancestor is to the terminal ends of the branches (where the living species reside), the more recently these two groups have diverged from one another, indicating that they are more closely related. In a phylogenetic tree, Species 1 and Species 2 share a more recent common ancestor with each other than with Species 3, which is why Species 1 and 2 are more closely related to each other. The tree is a hypothesis that reflects evolutionary history and may be updated with new data from homologous and analogous traits, and molecular evidence, such as DNA or RNA sequences. The most recently evolved organism will be found at the tip of the branch that extends farthest to the right or top, depending on the tree's orientation.
Concerning the broader categories of life, all living organisms can be classified into three major clades: Archaea, Bacteria, and Eukaryota. Within Eukaryota, organisms are further categorized, such as the division between the animal phyla based on characteristics like the presence of differentiated tissues and body symmetry.
What should you do with its contents if you are done using a test tube
When done using a test tube, safely dispose of its contents in the directed waste container, and clean the test tube with soap and water, then rinse with distilled water. Ensure all labels are removed. Follow your lab's specific protocols for proper disposal and cleaning to avoid contamination.
When you are done using a test tube in a chemistry experiment, it is important to dispose of its contents safely and clean the tube thoroughly to prevent contamination in future experiments. Here's a step-by-step guide:
Carefully pour the liquid contents of the test tube into the appropriate waste container as directed by your instructor.Rinse the test tube several times with distilled water to remove any residual chemicals.For thorough cleaning, use a small brush with soapy water to scrub the inside of the test tube, then rinse with distilled water.Dry the outside of the test tube with a paper towel and place it on a drying rack upside down to let the interior air dry.Ensure all labels are removed from the test tube using ethanol and a paper towel.Always refer to your specific laboratory's protocols for waste disposal and test tube cleaning procedures to ensure safety and compliance with regulations.
BIOLOGY HELP
C G A A U C
Study this genetic code.
In order for this code to represent a piece of DNA, which base must be replaced by thymine?
A) adenine
B) cytosine
C) guanine
D) uracil
Name two ways that scientists share their experimental results with other scientists
The scientist who pioneered the use of the microscope to view various kinds of microbes was __________.
Based on the data you found, about how many of the 100 aliens would become thin if the temperature were 35°C?
Answer choices are:
a. fewer than 10
b. about 50
c. about 80
d. more than 90
____________________________________________________________
Correct answer choice is:
d. more than 90
____________________________________________________________
Explanation:
You have seen that at temperature 20°, around 50 aliens were thin. At 25°, roughly 70 aliens were thin. Moreover, at 30°, nearly 88 aliens were thin. The take-home feature is that the greater the temperature, the larger number of aliens are suspected to be thin. So at 35°, we would suspect a higher number of aliens to be weaker than the 88 who are thin at 30°.
How did Alfred Wegener use rock and fossil evidence to support his hypothesis of continental movement.
Alfred Wegener used rock and fossil evidence to support his hypothesis of continental movement by finding similarities in continent shapes, fossils, mountain ranges, and paleoclimate.
Explanation:Alfred Wegener used rock and fossil evidence to support his hypothesis of continental movement in several ways:
The continents looked like they fit together like pieces of a puzzle.There were matching fossils found on continents that were separated by oceans.There were matching mountain ranges on continents that were separated by oceans.There was paleoclimate evidence suggesting that in the past, some continents were closer to the polar regions and some were closer to the equator.With this evidence, Wegener proposed that all continents were once together in a single supercontinent called Pangea.
In sordaria, how many different chromosomes arrangements can be produced through independent assortment?
Mitochondria, the nucleus, and the endoplasmic reticulum suspended in the cytoplasm of cells represent what kind of mixture
What features or variables of the plant leaves might affect the rate of photosynthesis?
The features that might affect how leaves process and perform rate of photosynthesis is determined by its surface area, chlorophyll and stomata.
The surface area of the leaf influences its performance to photosynthesis through the amount of light captured by it which is needed for photosynthesis to occur. As well chlorophyll which enables the leaf to absorb light and be processed. Lastly, stomata which is responsible for carbon dioxide and gas exchange.
Various features such as leaf size, age, thickness, orientation, and pigmentation can significantly impact the rate of photosynthesis in plants.
Several features or variables of plant leaves can affect the rate of photosynthesis. These include:
1. Leaf surface area: Larger leaves provide more surface area for gas exchange and light absorption, potentially increasing photosynthetic rates.
2. Leaf age: Younger leaves often have higher rates of photosynthesis compared to older leaves due to their higher chlorophyll content and metabolic activity.
3. Leaf thickness: Thicker leaves may have more mesophyll cells and chloroplasts, enhancing photosynthetic capacity.
4. Leaf orientation: Leaves positioned to receive optimal sunlight will have higher rates of photosynthesis compared to shaded leaves.
5. Leaf pigmentation: The presence and abundance of chlorophyll, carotenoids, and other pigments influence light absorption and photosynthetic efficiency.
Why does the human heart rate increase when exercising?