Answer:
Directional selection
Explanation:
Natural selection is the process by which environment selects from a population of organisms which individuals are better suited and adapted to that environment. There are three types of natural selection namely: directional selection, disruptive selection and stabilizing selection.
Directional selection is the type of natural selection in which only one extreme (phenotype) of a population is favored over the other extreme and intermediate individuals. This is the case in the example given in the question where among a group of white, grey, and black rabbits that lives in Alaska, environment selects the white rabbits (one extreme) from wolf predation, hence, causing the white rabbit population to increase and be favored.
A plant has alleles for white, red, and blue flowers. The majority of the flowers are white, though the color
does not give those flowers an advantage. What might cause this to occur?
Answer:
Environmental factors
Explanation:
If the plant has alleles for all three flowers but only one occurs, then it is most likely a result of tempature or soil pH.
When you see a car approaching, what type of neuron receives this informatation first?
a
Sensory neuron
b
Spinal cord
c
Brain
What makes up an
organism's environment?
Answer:
The biosphere is the part of earth where all life is found, and it consists of biotic (living) factors as well as abiotic (nonliving) factors such as air, soil, water, and sunlight. ... The community and the abiotic factors make up the ecosystem. An organism lives in its habitat within a community.
Explanation:
1
The diagram shows a reaction that
forms a polymer from two monomers.
What is this type of reaction called?
(5 Points)
Answer:
Dehydration synthesis
Explanation:
Combination of monomers to form a covalent bond usually with the release of water molecules
1. You are studying an intestinal cell that is actively making and secreting digestive enzymes . You know that the enzymes are proteinUsing your knowledge of cell structure and function describe where the enzymes are first made, where they are altered to an active form, how they are transported from one part of the cell to another, and how they are released from the cell Be sure that you mention all cell structures necessary for this activity and explain their functions You may use a diagrambut you also must write a discussion in full sentences
Answer and Explanation:
When mRNA leaves the nucleus and meets a free ribosome in the cytosol, it starts the protein building. Ribosomes read the mRNA code and begin protein synthesis by adding the correct amino acid using transference RNA.
Ribosomes attached to the RER membrane are responsible for synthesizing membrane proteins, exportation proteins, or enzymes.
The synthesis of proteins destined to become enzymes, membrane proteins, or exportation proteins starts in the cytoplasm with the production of a molecule portion known as a signal aminoacidic sequence. This signal sequence in the amino extreme of the synthesizing protein, and when it reaches a certain length, it meets the signal recognizing particle that leads the synthesizing protein and associated ribosome to the Rough endoplasmic reticulum, where it continues the protein building until finishing the elongation process. When the new protein synthesis is complete, the polypeptide is released into the reticulum lumen, suffering a few posterior steps related to conformation and structure, such as folding to become functional and the initial glycosylation stages.
The new proteins get packaged into vesicles that carry them to the Golgi complex where occurs the final association of carbohydrates and lipids with proteins, to originate glycoproteins and glycolipids.
Enzymes destined for exportation are packaged and sent from the Golgi complex to the cell membrane into vesicles. When the secretory vesicle reaches the target, its membrane fuses with the cell membrane, releasing its content to the extracellular space. This secreting process is known as exocytosis.
23. What event most likely took place after photosynthetic organisms were introduced on earth? a. The atmosphere content changed from highly oxygenated to CO2 b. Mitochondria began converting glucose into ATP at a higher rate c. Oxygen was introduced into the environment allowing for many other organisms to survive d. The water cycle was thrown off causing super storms
Answer:
C. Oxygen was introduced into the environment allowing for many other organisms to survive
Explanation:
A is not correct because that is the opposite of what photogenic organisms do.
B is not correct because ATP and glucose do not apply.
D is not correct because photosynthesis does not have a direct affect on the water cycle itself.
A marine biologist measured the amount of heat radiated from an aquarium over the course of an experiment. His measurements are shown in the graph below.
Graph shows heat, measured in Joules, radiated from an aquarium over time, measured in seconds. At 0 seconds, the energy, in the form of heat, is 1.2 Joules. At 5 seconds, the energy is 1.6 Joules. At 10 seconds, the energy is 1.3 Joules. Finally at 15 seconds, the energy is 1.5 Joules.
Based on this data, he concludes that the aquarium cannot be considered a closed system for this experiment. Explain why this conclusion is invalid.
A closed system exchanges both matter and energy with its surroundings, and the scientist only measured the exchange of heat.
A closed system can exchange energy but not matter with its surroundings, and the scientist did not measure the movement of matter.
A closed system exchanges all of its energy with its surroundings, and the scientist only measured the exchange of heat.
A closed system exchanges all of its matter with its surroundings, and the scientist did not measure the movement of matter.
Answer:
The correct answer is - A closed system exchanges all of its energy with its surroundings, and the scientist only measured the exchange of heat.
Explanation:
The amount of heat radiated is measured and analyzed by the marine biologist in this given experiment from an aquarium and on the basis of data the diagram is represented that states that the radiated energy is not constant over time and there are fluctuations.
It can not be considered as a closed system as energy is still exchange with the surrounding system, however, mass is not exchange but still, it cannot be called a closed system.
PLS HELP WILL GIVE BRAINLIEST
1. How many secondary consumers are in this food web?
2: which organism(s) has the least amount of energy available to them?
Asthma is a respiratory disorder that can cause the airways to temporarily constrict, or get narrower. Which function of the respiratory system is most affected by the narrowing of the airways? A. water balance B. air filtration C. heat balance D. gas exchange
Answer:
d
Explanation:
on edge
How does waste in the ocean harm the hydrosphere?
Answer: Inadvertent and deliberate discharge of petroleum, improper sewage disposal, and thermal pollution also are seriously affecting the quality of the hydrosphere. The present discussion focuses on three major problems—eutrophication, acid rain, and the buildup of the so-called greenhouse gases. Hope this helps. Can u give me brainliest
Explanation:
Red-green color blindness (c) is a recessive sex-linked trait. A colorblind male marries a normal female.
Their daughter is colorblind. Complete a Punnett square explaining how this is possible.
Sex linked traits can only be held on the X chromosomes, so males only need one while females need two.
What are Sex linked trait?A trait that is sex-linked is one that is governed by an allele or gene on the sex chromosome. The X and Y chromosomes are considered to be the sex chromosomes in humans.
Since qualities are sex-related, a clear pattern is frequently present. As a result, some attributes would be related to an individual's gender or sexual orientation.
Sex linkage is the expression of specific genes on the sex chromosome that results in the manifestation of specific features. For instance, color blindness is a sex-related characteristic with a recessive gene that is located in the
Therefore, Sex linked traits can only be held on the X chromosomes, so males only need one while females need two.
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is a point in a cladogram where a single ancestral lineage breaks into two or more descendant lineages
Answer:
Node, Claude
Explanation:
Nodes are points of attachment for leaves, aerial roots, and flowers. The stem region between two nodes is called an internode.
A clade is a grouping that includes a common ancestor and all the descendants (living and extinct) of that ancestor.
Answer:
Noda
Clade
Taxa
Explanation:
edge 2021
Which statement explains the benefit of crossing over during the process of meiosis?
A. Crossing over allows the cell to go through two cell divisions.
B. Crossing over allows the final daughter cells to be genetically different.
C. Crossing over allows tbe chromosomes to match up with their homologus pairs.
D. Crossing over allows tbe chromosomes to evenly distribute among the daughter cells.
Answer:
B. Crossing over allows the final daughter cells to be genetically different
Q.Why are some diabetes patients treated by giving insulin injections ?
Q. The gap between two neurons is called ------.
➜ The insulin hormone controls the metabolism of sugar. When pancreas does not produce or secrete sufficient amount of insulin into blood, then the sugar level in the blood rises. Therefore, the patient excreates sugar (glucose) in urine, feels excessive thirst and also urinates excessively. The people having severe diabetes are treated by giving injections of insulin.
➜ Synapse.
Insulin injections are given to individuals suffering from type 1 or type 2 diabetes. It is used when oral medication becomes ineffective. Insulin injections work by helping to move sugar from the blood into the body's cells. Moreover, it also inhibits the liver from producing more sugar.
which is not true about the first 22 pairs of chromosomes in a karyotype
they determine the gender of the individual
each pair has one chromosome from the father and one from the mother
they are called autosomes
they are homologous meaning each pair has the same size shape, and collection of genes
Answer:
The correct answer is - they determine the gender of the individual.
Explanation:
Autosomes are the chromosomes that are numbered or non-sex chromosomes. In humans, there are 22 pairs of autosomes that are numbered from 1 to 22. These chromosomes regulate or control the pattern of inheritance of every characteristic or trait of an organism other than present on the sex chromosomes.
These are homologous chromosomes which means each pair has the same genes and has a similar shape. The gender of an individual depends on the sex chromosome only.
HELP pls
Why is Christ's judgment perfect?
Answer:
Christ, the sinless and perfect Son of God, the only one who could qualify as our substitute, died to satisfy the demands of God's absolute holiness.
Answer:
God died on the cross for all of our sins it was the worst death on the entire planet earth
Explanation:
10. What happens when environments change and species cannot adapt?
Definition of biology?
Answer:
the study of living things
Explanation:
Hope this will help
Answer:
the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
Explanation:
The word biology is derived from the greek words /bios/ meaning /life/ and /logos/ meaning /study/ and is defined as the science of life and living organisms. An organism is a living entity consisting of one cell e.g. bacteria, or several cells e.g. animals, plants and fungi.
Chlorophyll makes some plants look yellow.
True
False
Answer:
TRUE
Explanation:
According to scientists, donkeys and horses share a common ancestor. Which evidence shows that the two organisms are related?
Group of answer choices
Both run fast.
They have the same diet.
They have the same bones in their limbs.
Both are tall.
true or false: The endocrine system is made up of organs called neurons that release chemical signals directly into the bloodstream.
Tabitha built a computer model of a weather system. She included information about bodies of water, the Sun, and the atmosphere.
After running the model the first time, Tabitha doubled the size of a freshwater lake in her model. This change caused more moderate temperatures and an increase in precipitation in the locations nearby.
Which two spheres are interacting when a body of water affects the weather of a location as it did in Tabitha's model?
a. atmosphere and geosphere
b. hydrosphere and atmosphere
c. geosphere and hydrosphere
d. hydrosphere and biosphere
Answer:
a
Explanation: because i guessed and got it write
Explain the differences between eukaryotic and prokaryotic cells.
Explanation:
Comparing prokaryotes and eukaryotes
All life on Earth consists of either eukaryotic cells or prokaryotic cells. Prokaryotes were the first form of life. Scientists believe that eukaryotes evolved from prokaryotes around 2.7 billion years ago.
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information. In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus.
The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure. Eukaryote DNA consists of multiple molecules of double-stranded linear DNA, while that of prokaryotes is double-stranded and circular.
Mosses and other bryophytes are quite short, while many ferns, cone-bearing plants, and flowering plants can grow quite tall. Which type of tissue found in the taller plants, but not in mosses, is most useful for explaining the tall heights that plants can achieve? *
A. endosperm, which nurtures the developing plant embryo in a seed
B. leaf epidermis, which protects inner leaf tissues from drying out.
C. vascular tissues, which conduct water and nutrients against the pull of gravity
D. apical meristems, which allow growth in the tips of roots and shoots
Answer: C. Vascular tissues, which conduct water and nutrients against the pull of gravity.
Explanation:
Because Moss and other bryophytes lack vascular tissue and sharing a number of other primitive traits.
Which area is cold all year and experiences low precipitation?
MCHC OCEAN
ATLANTIC
OCEAN
PACIFIC
OCEAN
PACIFIC
OCEAN
INDIAN
OCEAN
0
1,500
2000 m
1.300.000
Tropical
Tropical wet
Dry
Semiarid
Moderate
Mediterranean
Continental
Humid continental
Polar
Tundra
Non-permanent ice
Subarctic
Ice cap
Hurid subtropical
Arid
Tropical wet and dry
Marine west coast
Highlands
PLEASE ANSWER FAST PLS ILL MARK BRAINLIEST AND 40 POINTS PLS PLS HELP ME
Explanation:
ideo oxean 4000m hurid higlanda
The polar region (arctic and antarctic circles) is cold all year and experiences low precipitation.
What is the polar region?Any location on Earth that lies between the North or South Pole and the Arctic or Antarctic Circles is referred to be a polar region. The Arctic Ocean and a portion of several nearby land masses are included in the northern polar area, sometimes known as the Arctic.
Extremely cold temperatures, heavy glaciation wherever there is enough precipitation to create permanent ice, brief and cold summers, and extreme variations in daylight hours, with 24 hours of daylight in the summer and total darkness in the middle of the winter, are all characteristics of polar regions.
Hence, the polar region (arctic and antarctic circles) is cold all year and experiences low precipitation.
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How are eukaryotic cell walls different from bacterial cell walls?
Which of these is NOT a benefit of using less coal?
what are the choices? 0-0
If you click on the picture there is a punnet square that needs to be filled out please help me. I’ve tried everything and for some reason it’s never right, there is also a Phenotype Probability percent that needs filled out.
what’s a characteristic of a cold and warm front
Answer:
Warm fronts are typically characterized by a transition from southeasterly to southwesterly winds. Unlike cold fronts, winds along the front itself are generally light and variable. ... Warm fronts are generally characterized by poor visibility due to low layers of overcast and steady PRECIPITATION
HELP ASAP! ILL GIVE U BRAINIST ANSWER AND A TY! Need help!!!!
