Answer:
α helix with mostly polar side chains
Explanation:
Alpha helix with mostly polar side chains allow is a segments of transmembrane protein that cross the lipid bilayer because the helical structure of α helix provide wat is needed by the hydrogen bonds backbone internally and ensuring that there is no polar groups that is on exposure on the membrane if the side chains are all hydrophobic i.e the molecules repel water.
What do comets and astroids have in common
Answer:
Asteroids and comets have a few things in common. They are both celestial bodies orbiting our Sun, and they both can have unusual orbits, sometimes straying close to Earth or the other planets. They are both “leftovers” — made from materials from the formation of our Solar System 4.5 billion years ago.
Explanation:
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
Which statement describes a scientific theory
Answer:
here
Explanation:
A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Where possible, theories are tested under controlled conditions in an experiment.
Why does surface tension occur?
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
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.
Sensory cells for hearing are located in the:______.
Answer:
cochlea
Explanation:
Which animal does not need gall bladder and why
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.
Some snakes produce a powerful poison that paralyzes their prey. This poison is an example of
Group of answer choices
an adaptation
resistance
an abiotic factor
a reptile
Answer:
This poisonis an example of an aboitic factor
The poison is an adaptation, as it is an advantage acquired through natural selection that allows the the snakes to bring down and capture their prey. Therefore, option (A) is correct.
What is adaptation?In biology, there are three related definitions of adaptation. First, natural selection, a dynamic evolutionary process, adapts organisms to their environments, improving their evolutionary fitness. Second, it is a condition that the populace has attained along that process. Thirdly, it is a phenotypic characteristic or adaptive trait that has been preserved and has developed via natural selection and has a functional purpose in each individual organism.
One example of physiological adaptation is the poison a cobra snake produces to defend itself against bigger creatures. They catch their victim using the poison as well.
Learn more about adaptation, here:
https://brainly.com/question/29733445
#SPJ3
Simplify the expression 2(3) +26–3).
2(3) +26–3)
The simplified answer is 29
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.
To learn more about proteins, here
https://brainly.com/question/31017225
#SPJ6
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 cellsWhat 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:
Indicate the type of testing each sentence describes. 1. Chromosomes from a sample of cells are stained and analyzed microscopically. Karyotyping 2. A DNA probe that hybridizes to a particular gene can be used to determine if a gene is present, absent or altered. (Click to select) 3. Antibodies are used to detect the presence or absence of a protein. (Click to select) 4. The enzymatic activity of a protein can be assayed in vitro. (Click to select)
Answer:
1. Karyotyping
2. In situ hybridization
3. Immunological (immunoblotting)
4. Biochemical (enzyme assay)
Explanation:
Karyotyping is the procedure in which pictures of the chromosomes are taken in order to identify and classify them according to their sizes, lengths, centromere positions, banding patterns, etc. In karyotiping, the chromosomes are stained to be clearly seen under a light microscope. In situ hybridization is a technique where complementary DNA oligonucleotides (either DNA or RNA) are used as probes to localize a specific segment of nucleic acid in a histologic section. Immunoblotting (western blotting) is a sensitive assay where antibodies are used to mark a protein, thereby enabling the identification of target proteins by exploiting the recognition specificity mechanism between antigens and antibodies. An enzyme assay is a technique used to measure the consumption rate of a given substrate or its production rate over time. Enzyme assays can be classified into four types: initial rate, transient kinetics, relaxation and progress curve assays.
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
Which eukaryotic organelle was thought that have evolved from symbiotic bacteria? Describe how this event took place.
Answer:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
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.
How do plates move relative to each other at convergent plate boundaries?
Answer:
The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart and transform, where plates move sideways in relation to each other.
Explanation:
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 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.
learn more about Photosynthetic here: https://brainly.com/question/15538432
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.
The angle subtended by stars in the night sky is orders of magnitude smaller than the acuity threshold you calculated in 1). Why are we able to see objects that are much smaller than the angle subtended by the gap in the acuity threshold experiment? (50 word max)
Answer is given below
Explanation:
we consider here gap in character size is 0.75 mm
and distance is 300 mm
so minutes of arc is = 0.85944
and
visual acuity is express as
V = standard view distance D ÷ distance at which each letter D' ................1
There is visual acuity under the eyes, on which the object cannot be determined Factor factor mainly determines refractive error and contrast angle brightness or brightness and duration of contrast and exposure The target resolution threshold is expressed as a small angle, which can reduce the distinction between important elements of the stimulus pattern such as a pair of dots. Relaxation is specified in terms of its angular sizeANSWER THIS QUESTION PLLZZZZ I NEED HELPPPPPPPPP
Answer:
Explanation:
what does it say
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
Eukaryotic organisms can be single-celled or multicellular.
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.
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.
all of the cell theory? (4 points)
Oa
Every living thing is composed of cells.
Ob
c
Cells come from pre-existing cells.
Cells are the basic unit and structure of all living things.
Od
Every cell has a nucleus that contains genetic material.
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.
If you have a loss of antigen what happen to your body
Answer:
you would get sick time and time again
