Answer:
glucose molecules
Explanation:
Explain why the tree which does not move away is also considered a living thing
Answer:
Because it grows. Anything having to do with growth is alive.
Simplify the expression 2(3) +26–3).
2(3) +26–3)
The simplified answer is 29
Which three of the statements are true? Amphipathic (amphiphilic) lipids are the structural basis of biological bilayer membranes. The tendency of water to minimize its contact with nonpolar substances is called the hydrophobic effect. Hydrophobic molecules do not readily dissolve in water in part because water molecules involved in hydration cannot participate in normal hydrogen bonding with one another. Hydrophobic molecules are individually hydrated in water, increasing the entropy of the system. Nonpolar molecules are capable of forming micelles.
Answer:
- Amphipathic (amphiphilic) lipids are the structural basis of biological bilayer membranes.
- The tendency of water to minimize its contact with nonpolar substances is called the hydrophobic effect.
- Hydrophobic molecules do not readily dissolve in water in part because water molecules involved in hydration cannot participate in normal hydrogen bonding with one another.
Explanation:
The cellular membranes consist of amphipathic lipids arranged in a bilayer, which maximizes both hydrophobic and hydrophilic interactions. The hydrophobic effect can be defined as the propensity of non-polar substances to aggregate themselves and thus exclude water molecules in a solution. Thus, water molecules around non-polar residues form an arrangement that reduces the entropy. Non-polar molecules are repelled and do not dissolve in water, thereby maximizing hydrogen bonding between water molecules and minimizing the contact area between water and nonpolar molecules.
TRUE OR FALSE
The atmosphere is a relatively thin layer of gases that form Earth’s outermost layer.
Mountains are an example of the biosphere.
The crust is less than 1% of the Earth’s mass.
Ponds are an example of the geosphere.
Earth’s four systems include: geosphere, atmosphere, biosphere, and lithosphere.
Answer:
true, true, false (15%), false, true
Which of these molecules might be found in a molecule that catalyzes a chemical
reaction?
a) glucose, a sugar
b) lard, a fat
c) valine, an amino acid
d) DNA, a nucleic acid
Answer:
The correct answer is - option C and option D).
Explanation:
In biology, Molecules that catalyze a chemical reaction known as enzymes, and these catalyst helps in chemical reactions by lowering their activation energy. Enzymes are mainly made up of proteins that contain one or more than one amino acid chain linked together by peptide bonds.
Deoxyribozymes or DNA enzymes are the catalytic DNA that performs various catalytic reactions often but not always.
Thus, the correct answer would be - option C and option D).
Answer:
c
Explanation:
valine, an amino acid
Which of the following blood vessels carries blood from the tissues back to the heart?a) arteriesb) arteriolesc) aortad) veinse) capillaries
Answer:
Veinules
Explanation:
Veinules are smaller veins blood vessels that carries deoxygenated or poorly oxygenated blood from the tissues back to the heart except pulmonary veins and umblical veins
After the blood move from the capillaries, it enter smallest veins called veinules and then continually flows into the larger veins till it get to the heart.
What do all vertebrates and invertebrates have in common?
A) They are prokaryotic.
B)They are covered by an outer skeleton.
C)They are multicellular.
D)They are bilaterally symmetrical.
Answer:
C. They are multicellular.
Explanation:
Answer:
C. They are multicellular
Explanation:
Animal Cells
- All animals are eukaryotes
- All animals are multicellular
A rapid change in temperature with depth is known as a
A. thermocline
B. halocline
C. temperocline
D. pycnocline
In DNA replication, the RNA primers are removed and replaced with DNA by:__________.
Answer:
DNA polymerase
Explanation:
RNA primers are removed and replaced with DNA by DNA polymerase I. The gaps between DNA fragments are sealed by DNA ligase.
a.
Describe role and use of oxygen in air and life of animais
Answer:
All living organisms except plants need oxygen, as oxygen is what ignites all living things .. Plants take carbon dioxide and produce oxygen gas through the process of photosynthesis.
Answer:
Oxygen plays a critical role in respiration, the energy-producing chemistry that drives the metabolisms of most living things. We humans, along with many other creatures, need oxygen in the air we breathe to stay alive. Oxygen is generated during photosynthesis by plants and many types of microbes.
Which group contains only organs in a human body?
3
heart, brain, skin
skin, blood, neuron
neuron, heart, stomach
stomach, blood, brain
heart, brain, skin are the group contains only organs in a human body. Thus option A is correct.
what is role of heart ?
The major function of heart in our body is to pumping blood from the lungs to different the body parts.
In the initial step the de-oxygenated blood collected in the right atrium and pumped to the lungs via the right ventricle through a valve called tricuspid valve.
After carbon dioxide exhalation, the pure re-oxygenated blood is collected in the left atrium moved to the left ventricle via the mitral valve then transfers to the body parts.
The transportation of blood from the right atrium to the right ventricle occurs via the pulmonary semilunar valve.
Now the pulmonary vein carries the oxygenated blood and reach the left atrium transported to left ventricle followed by aortic semilunar valve transports this blood from the left ventricle to the aorta then to capillaries.
Thus option A is correct.
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This macromolecule (large) is used to carry genetic information. It's building block is called a nucleotide.
Explanation:
Nucleic acids are long chainlike molecules composed of a series of nearly identical building blocks called nucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose (five-carbon) sugar, which is in turn attached to a phosphate group.
Which of the following characteristics is not shared between Kingdom Protista and Kingdom Animalia?
A mobile
B Photosynthetic
C Eukaryotic
D Reproduce sexually
Answer:
B. Photosynthetic
Explanation:
Kingdom animalia and protista are two of the seven classification of kingdoms. Kingdom Animalia is characterized by their eukaryotic multicellular cell and heterotrophic nature of nutrition i.e. depend on other organisms for energy source.
Kingdom protista, on the other hand, are grouped because they do not fit into any other kingdom. Protists can be autotrophic or heterotrophic, single celled or multicellular. Some protists are capable of autotrophic nutrition via photosynthesis e.g algae.
This photosynthetic process is the difference between the protists and animals. Animals can never be autotrophic.
The following characteristics is not shared between Kingdom Protista and Kingdom Animalia is option B. Photosynthetic
Kingdom Protista & Animalia:Kingdom Animalia and Protista should be two of the seven classifications of kingdoms. Kingdom Animalia should be characterized by their eukaryotic multicellular cell And heterotrophic nature of nutrition based on other organisms for an energy source.
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What is it called when scientists examine how well other scientists follow the scientific method? O A. A peer review OB. A new experiment O C. A prediction O D. A journal
Answer:
peer review
Explanation:
Answer:
peer review
Explanation:
Which animal does not need gall bladder and why
Select the correct answer from each drop-down menu. The male red-winged blackbird has a bright-red patch on its shoulder. This adaptation increases its chances of mating with the female blackbird. Some of the birds underwent mutation, and their offspring didn’t have the red-colored patch. This mutation increases the birds’ _______. Individuals with this mutation have____chance of being sexually selected. !st sentence answers. A.Ability to adapt B.Genetic Variation C.Sexual Selection 2nd sentence answer. A.A higher chance B.A lower C.The same
Answer:
B.Genetic Variation
B. A lower
genetic variation and a lower chance
ANSWER THIS QUESTION PLLZZZZ I NEED HELPPPPPPPPP
Answer:
Explanation:
what does it say
2. Determine the phenotype for each genotype using the information provided about the Simpson family. Write the phenotype in The space provided.
Yellow (Y) hair color is dominant to blue (y)
YY ₋₋₋₋₋₋₋₋₋₋₋₋₋ Yy ₋₋₋₋₋₋₋₋₋₋₋₋₋ yy ₋₋₋₋₋₋₋₋₋
Baldness (b) is recessive to a full head of hair (B)
Bb ₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ Bb ₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ bb₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ BB ₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ .
Explanation:
YY_yellow hair
Yy_yellow hair
yy_blue hair
Bb_full head of hair
Bb_full head of hair
bb_bladness
BB_full head of hair
Who observed variations in the characteristics A.James Hutton , B.Charles Lyell , C.Charles Darwin, D.Thomas Malthus
Answer:b
Explanation:
Give two examples of a deuterostome and two examples of a protostome.
Answer:
Protostomes: mollusks such as bivalves or gastropods.
arthropods such as crustaceans or insects.
Deuterostomes: echinoderms such as the starfish
hemichordates such as Enteropneusta (marine
vermiculated animals)
Explanation:
The embryonary development of bilateral coelom animals makes a place for the division of two groups: protostomes and deuterostomes. Among protostomes might be mentioned the flatworms, annelids, mollusks, and arthropods. Deuterostomes include echinoderms and chordates, among others.
These two groups differ in their specific development. Protostomes show spiral initial segmentation, and the mouth develops as a first opening near the blastopore. Deuterostomes show radial segmentation, the anus develops near the blastopore and the mouth develops later in another place.
Eukaryotic organisms can be single-celled or multicellular.
11.What element is the of life?
Answer:
Cells.
Explanation:
Because this question is so vague, there can be multiple different answers. However, when thinking about biology, we know that cells are the basic unit of life, considering the cell theory. The cell theory talks about how cells are the element of life because all living things are made of cells. They are the foundation of life on earth and without them, living things could not exist.
Type your response in the box.
How would you define the term energy? Why do living things need energy?
Answer:
Energy is the potential for causing changes. Energy helps organisms perform tasks; such as maintaining homeostasis and responding to stimuli. Energy is essential to life because it helps organisms perform essential activities for survival.
:
Answer:
Sample Answer
Hope this helps!
Explanation:
Energy is the ability to do work. Living things need energy to grow, develop, move, and perform voluntary and involuntary body processes.
Which of the following accurately explains what it means to have a high specific heat ?
Answer:
This question lacks options; the options are:
A) Less heat is needed to keep water at a high temperature
B) Water efficiently absorbs and retains heat.
C) Heat is quickly released from water.
D) Water maintains a constant temperature
The answer is B.) Water efficiently absorbs and retains heat
Explanation:
A substance's specific heat refers to the quantity of heat the substance needs to increase its temperature by 1°C. Hence, a substance is said to have a high specific heat if it takes more heat energy to make it hot while a substance is said to have a low specific heat if it takes less heat energy to make it hot.
According to the question, water is being referred to. Water has a high specific heat meaning that it is good absorber of heat and retain it due to its hydrogen bonding. This is why water will take a longer time and high heat to increase its temperature because it absorbs and retains the heat supplied to it.
Which of these statements is the most complete definition of ecology? A.The study of the interactions between organisms in terms of competition and predation B.The study of the environment, in particular how to preserve it C. The study of the interactions between organisms and their environment D.The study of the environment, in particular how to save endangered species
Answer:
c I think I'm not sure tho
The Atmosphere is the shell of gasses that surround the Earth and is layered
into zones.
True or false
Answer:
I would say true, because
Explanation:
Earth's atmosphere has a layered structure. From the ground toward the sky, the layers are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Another layer, called the ionosphere, extends from the mesosphere to the exosphere. Beyond the exosphere is outer space.
eok
Which biomolecule is the genetic codle for life?
Answer: nucleic acids
Explanation: Among biomolecules, nucleic acids, namely DNA and RNA, have the unique function of storing an organism's genetic code—the sequence of nucleotides that determines the amino acid sequence of proteins, which are of critical importance to life on Earth.
11. Which of the following is a function of a protein
Answer:
Produces vital body structures, providing energy, providing cell structure, maintaining fluid balance, act as buffers, contributes to immune function.
Explanation:
Functions of proteins include:
A. transport of materialsC. structure of your bodyD. enzymes to speed up chemical reactionsF. movement of musclesH. chemical hormonesI. recognition and communication between cellsOptions A, C, D, F, H and I are correct.
Proteins are macromolecules composed of amino acids and play essential roles in various biological processes. They have diverse functions in the body, contributing to its structure, metabolism, and overall functioning.
Proteins involved in transport facilitate the movement of substances across cell membranes or throughout the body, allowing for the uptake and distribution of nutrients, ions, and other molecules. Examples include transport proteins in the blood, such as hemoglobin that carries oxygen.
Proteins contribute to the structure of the body, providing support, strength, and flexibility to tissues and organs. They form the structural framework of cells, muscles, bones, and connective tissues.
Enzymes are proteins that act as catalysts, speeding up chemical reactions in the body by lowering the activation energy required. They play a crucial role in metabolic pathways and are involved in processes such as digestion, energy production, and DNA replication.
Proteins are integral to muscle contraction and movement. They are responsible for generating force and enabling movement of skeletal muscles.
Certain proteins function as chemical hormones, regulating physiological processes and signaling between cells and tissues. Examples include insulin, growth hormones, and thyroid hormones.
Proteins are involved in cell recognition and communication, facilitating interactions between cells and coordinating cellular activities. They play a role in immune responses, cell signaling, and cell adhesion.
However, genetic code, insulation, and providing a quick burst of energy are not primarily attributed to proteins. The genetic code is carried by DNA and RNA molecules, while insulation is primarily provided by adipose tissue. Quick bursts of energy are predominantly fueled by carbohydrates.
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The complete question is:
Which of the following are functions of proteins?
A. transport of materialsB. genetic codeC. structure of your bodyD. enzymes to speed up chemical reactionsE. provide insulationF. movement of musclesG. provide a quick burst of energyH. chemical hormonesI. recognition and communication between cellsg A graduate student ran a gel filtration column and determined that a specific protein has a molecular mass of 400 kDa. The student then ran an SDS-PAGE gel of the protein under non-reducing conditions and found the presence of three bands: 180, 160, and 60 kDa. The student then ran SDS-PAGE under reducing conditions and still found three bands but the sizes were: 160, 90, and 60 kDa. Explain (1) the subunit composition of the protein, (2) the number of unique and identical polypeptides present in a single protein, (3) and why the discrepancies occur in the molecular weights.
Answer:
1) The protein is a tetramer, i.e., it has 4 subunits
2) The protein has two identical subunits with a molecular weight of 90 kDa
3) Because this protein contains two subunits with identical molecular weight (90 + 90= 180)
Explanation:
160 kDa + 90 kDa + 60 kDa = 310 kDa >>
Subunit X = 400 kDa - 310 kDa = 90 kDa >> Two subunits with a weight of 90 kDa likely linked by disulfide bonds (i.e., non-reducing conditions can break all bonds except sulfide interactions)
going from superficial to deep the layers of the skin would be?
Answer:
Skin that has four layers of cells is referred to as “thin skin.” From deep to superficial, these layers are the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum. ... It has a fifth layer, called the stratum lucidum, located between the stratum corneum and the stratum granulosum (Figure).
