Penguin wings and swallow wings are _____ structures.
A compound
B analogous
C vestigial
D homologous
Answer: Analagous
They are different anatomically but perform similar functions.
What do prokaryotes lack that are in eukaryote cells?
Answer: Prokaryotic cells differ from eukaryotic cells in that they lack any membrane-bound organelles, including a nucleus. Instead, prokaryotic cells simply have an outer plasma membrane, DNA nucleoid structure, and ribosomes.
HOPE THIS HELPS
Insectivorous plants use insect proteins as a source of what to synthesize it's own proteins.
Answer:
Food
Explanation:
I NEEED HELP AS QUICK AS POSSIBLE!!!
Answer:
The answer is B: Active Transport
Explanation: Because energy is required to move the sodium and potassium ions against the concentration gradient. Sodium ions are actively transported from the inside of the cell to the outside of the cell, even though there is a higher concentration of sodium ions on the outside.
I will MARK BRAINLIEST
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
NucleusCellTissueOrganSystemAnimalʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ꧁❣ RainbowSalt2²2² ࿐
Answer:
[tex]1) \: nuclues[/tex]
[tex]2) \: cell[/tex]
[tex]3)tissue[/tex]
[tex]4) \: organ[/tex]
[tex]5) \: system[/tex]
[tex]6) \: animal[/tex]
i hope it helps
have a great day
#Captainpower
how does hydrogen bond DNA strands together?
Answer:hydraulics. In each linear strand there are covalent bonds and strong bonding between bases, sugars and phosphate groups (both within each component and between components). Hydrogen bonds occur in a complimentary combination between the 2 strands and include a base with one strand, and the base with the other.
Explanation:
Which of the following
structures is a rigid
barrier found outside
of the cell membrane
in the plant cell?
Answer: Cell wall
Explanation:
PLEASE HELP IM TIMED!!! ILL MARK BRAINLYIST
Answer:
A hope this helps
Explanation:
Answer: A
Explanation:
As particles heat up, their kinetic energy increases. The particles in the box labeled X have larger tails, implying they have larger kinetic energy.
Help me answer this guys ❤️
Answer:
evaporation
condensation
condensed liquid water
rain
Explanation:
1. Cytoplasm
2. Nucleus
3. Chloroplasts
4. Cell Wall
5. Cell membrane
Which of the components could be observed using a microscope in a prepared slide of leaf
epidermal cells but not in a prepared slide of human cheek cells?
F Components 2 and 3 only
G Components 3 and 4 only
H Components 1, 2, and 3 only
J Components 1 and 5 only
The amount of life that can be supported in a particular ecosystem is limited by which of the following?
I. energy
II. water
III. minerals
IV. oxygen
A.
II and IV only
B.
I and II only
C.
I, II, III, and IV
D.
II, III, and IV only
Natural selection results in change over time by acting on traits that are ___
Answer:
passed on, inherited, passed on to offspring, most adapted to the environment or have the best adaptive traits or higher genetic fitness
Explanation:
Natural selection results in change over time by acting on traits that are heritable and advantageous.
What is Natural selection?Natural selection is the differential survival and reproduction of individuals due to the differences in phenotype of the organism. Natural selection is a key mechanism of evolution, the change in the heritable traits characteristic of a population takes place over many generations.
Natural selection is the central mechanisms of evolutionary change in a species and is the process responsible for the evolution of adaptive features in an organism. This selection helps in storing the characteristics which are advantageous and are heritable for the species.
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What do lipids and carbohydrates have in common? (What is the same about them?)
A. Both carbohydrates and lipids taste sweet.
B. You can survive your whole life by eating only carbohydrates or lipids.
C. Living things use both to store energy.
Answer:
Living things use both to store energy.
PLEASE HELP!!
For the presentation you will research and provide summaries for manned and unmanned explorations of your
choice. The presentation should be about twelve slides in length. Your presentation will include:
Title
Introduction - gives an overview of the presentation
Time line of missions - must include 3 manned and 3 unmanned missions
Description of each of the missions in the timeline (1 mission per slide)
(a) Name and date of mission
(b) Purpose of missions
(c) Results or findings from missions
Scientific advance - describe a scientific advancement that has led to an engineering improvement in
space exploration
Engineering advance - describe an engineering advance that has led to greater knowledge about the
solar system
Sources - list the websites and other sources you used
Remember to make a list (i.e., bullet points) on each slide. The slides should feature the highlights of the main
idea. The bullet points should be short phrases (at most, one sentence) that highlight key points.
.
.
ik
Answer:
HERE IS MINE HOPE IT CAN HELP, STAYED UP ALL NIGHT.
Explanation:
I CUT OUT MY NAME AND GRADE, CHANGE UP THE BACKGROUND OR SOMTHING IF YOUR GOING TO USE THIS.
HAPPY I COULD HELP M8, WISH ALL OF YALL USING THIS LUCK WITH YOUR GRADES. =]
Effectors may show stimulatory or inhibitory activity. Binding one subunit impacts binding of substrate to other subunits. ALL are correct. The enzyme can have multiple subunits. The regulatory effect is by altering conformation and interaction of subunits.
Answer: Hello your question is poorly written below is the well written question
All are characteristic of allosteric enzymes except:
a. effectors may show stimulatory or inhibitory activity
b. they have multiple subunits
c. they obey Michaels-Menten kinetics
d. the regulatory effect is by altering conformation and interation of subunits
e. binding one subunit impacts binding of substrate to other units.
Answer : They Obey Michaels-Menten kinetics ( c )
Explanation:
Allosteric enzymes are enzymes that posses the presence of an additional site and an active site. they are modified by a noncovalent binding an allosteric effector. They do not posses a kmvalue hence they do not obey Michaels-Menten kinetics
Carbohydrates are made of atoms of hydrogen, oxygen, and carbon.
A. True
B. False
Blood pressure decreases below normal levels. Blood flow to the heart decreases. Heart is unable to pump as much blood. Blood pressure decreases even more. This is an example of _____ feedback. Multiple choice question.
Answer:
its called systolic heart faliure or heart faliure with reduced ejection fraction
What is photosynthesis
Answer:
The process of a plant converting sunlight, carbon dioxide and water into food
Explanation:
Hey there!
Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunlight, so we eat plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae, and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the green pigment found in the chloroplasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.
Hope this helps!
Have a great day! :)
Inertia best describes...
a. why objects at rest remain at rest
b. why objects moving at a constant velocity continue moving at a constant velocity
c. both A and B
Answer:
c a letter c
Explanation:
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What are the complementary base pairs found in DNA?
O A. A-U
G-C
O B. C-T
A-G
O C. U-T
G-C
O D. C-G
A-T
Answer:A-G
Explanation:
A cube is measured and has all sides that are 2 cm long. What is the
VOLUME for this cube?
8
24
3
Answer:
ans is 8..
Explanation:
We know cube has 6 sides..
[tex] \sqrt{6} = 3[/tex]
Then we get that ..
Volume of a cube is s³..
=> side =2cm
=> V = 2³
= 8
What type of transport is illustrated in the diagram and what type of molecule would be transported
using this process?
A. Passive transport; carbohydrates
B. Active transport; oxygen
C. Exocytosis; proteins
D. Facilitated diffusion; sugars
Hemolysis of red blood cells occurs when the cells are placed in a(n) Group of answer choices hypotonic solution physiological saline solution hypertonic solution isotonic solution
Answer:
Hypotonic solution
Explanation:
Haemolysis of red blood cell refers to the destruction or breakdown of red blood cells. Red blood cell will undergo haemolysis if placed in an Hypotonic solution. Hypotonic solution is a solution that contain smaller amount or lower concentration of solutes like dissolved salt than other solution and also compared to the cystol. If a cell is placed in Hypertonic solution, red blood cell will swell because it will absorb solute and undergo hemolysis burst when placed in a hypotonic solution.
A pink-flowered plant is crossed with a white-flowered plant. What is the
probability of producing a pink-flowered plant? %
using Punnett Squares, determine the percentage of offspring which would be heterozygous from the following cross: BB x bb
A. 25%
B. 50%
C. 100%
Lets take that the father has black hair and the mother has brown hair so -->
Male × Female
Genotypes: BB × bb
Phenotypes: Black brown
Gametes: B _100%_ b_100%_
After reviewing the photo
we have
Genotypes
B: 50% (1/2)
b: 50% (1/2)
Phenotypes
Black: 50% (1/2)
brown: 50% (1/2)
Using Punnett Squares, the percentage of offspring would be heterozygous from the following cross: BB x bb is 25%. Therefore, option (A) is correct.
What are the features of punnett square method?The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach in 1905.
The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given. In its simplest form, the Punnett square consists of a square divided into four quadrants.
A Punnett Square is a helpful tool that helps to predict the variations and probabilities that can come from cross breeding. This includes predicting crossing plants, animals, even humans with each other.
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Please answer questions for the brainliest.. and stars..
Answer:
Cool air forms denser clouds, and when the clouds from the side of the mountain with cool air try to go to the side of the mountain with warm air, the clouds warm up and dissipate.
List the traits of each new species of rat.
The rat on island A:
1.
2.
The rat on island B:
1.
2.
The rat on island C:
1.
2.
The rat on island B:
1.
2.
Describe a challenge that would be encountered and a success of one of the new rats to another be environment (example: the rat living on island B now moves to island D)
Complete question:
Directions: Read the descriptions of the four islands presented in the lesson.
1. List two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island.
2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment
Island A:
The island is fairly flat with an occasional hill. The ground is made of soft dirt, and several species of shrubs grow toward the center of the island. There is no animal life on land, but the water around the island is teeming with fish. The island is surrounded by a coral reef, and the shore is sandy with no algae growing on it. Freshwater is available.
The rat on Island A:
1.
2.
Island B:
This island has a rocky shoreline. Numerous tide pools dot the island along the shore where the wave action is somewhat sheltered by rocky outcrops. The tide pools host barnacles, abalone, sea urchins, and crabs. Algae grow all around the island; however, the growth of algae is quite sparse in the tide pools where the various animals feed. The current is quite strong along the rocky outcrops where the algae grow best. Freshwater is available.
The rat on Island B:
1.
2.
Island C:
The island is somewhat barren. A few species of cactus thrive on the bare rocks, and a large, cactus eating tortoise inhabits the island. A species of very large birds’ nests on the island annually. The birds build their nests on the rocks and protect their eggs from the sun by standing over the nests with outspread wings. The nests are always found on the windy side of the island, which is somewhat cooled by offshore breezes.
The rat on Island C:
1.
2.
Island D:
This island is an extinct volcano. Vegetation on the island changes as the altitude increases. Grasses grow at the base of the volcano, but farther up the volcano’s slope, the grasses give way to low shrubs. Halfway up, the island becomes quite lush; tropical plants and trees dominate the landscape. At this altitude, the island experiences frequent rain showers. Two species of birds inhabit the island. One is a raptor that preys on the smaller birds. The other fishes the waters approximately one mile offshore. Both of the bird species nest in trees.
The rat on Island D:
1.
2.
Answer:
The rat on Island A:
1. Behavioural adaptation → Diurnal habits, as there are no predators that might attack them.
2. Morphological adaptation → Flat feet to move on the sand and Long strong nails to dig in the soft dirt and reach the roots of the shrubs which are a nutritious source of food.
The rat on Island B:
1. Morphological adaptation → Strong extremities to move along the rocky shoreline, to avoid sudden wave impacts, and handle to swim counter-current if they fall.
2. Morphological adaptation → Strong mandibles, well-developed masseteric and temporal muscles, and teeth adapted to feed on barnacles, abalone, sea urchins, and crabs.
The rat on Island C:
1. Stress-induced → Reduced transpiration rate due to the limited water availability.
2. Behavioural adaptation → Skills to compete for scars food with the tortoise avoiding its attack or presence.
The rat on Island D:
1. Morphological adaptation → Waterproof coat, due to the frequent rain showers.
2. Morphological adaptation → Vestigial nails, as they do not need them to get food.
Introduction of a Rat from island C to island D.
Challenge: They need to regulate water loss by increasing the transpiration rate. They need to grow fur adapted to excessive water.Success: They are good competitors with special skills.Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
if the DNA sequence was ATTCGCTA what would the DNA paired sequence be
The function of the large intestine is to....
A. send bile to the small intestine
B. digest protein
C. reabsorb water from waste
D. store food
Answer: the answer should be C
Explanation:
Can some one help me :(.
Answer:
have a good day, hope this helps :)
Explanation:
hi! just saying that if you look up your question, this answer pops up: Aprocess called pollination...