When a single species, such as ancestor of the Galapagos finches, has evolved into several different forms that live in different ways we say that_ has occurred.
A.adaptive radiation
B.coevolution
C.mass extinction
D.punctuated equilibrium

Answers

Answer 1

Answer:

A

Explanation:

In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, alters biotic interactions or opens new environmental niches.


Related Questions

What organelle reforms around the chromatids at opposite ends of the cell?

A. Chloroplast

B. Vacuole

C. Centriole

D. Nucleus

Answers

The answer to your question would be: Nucleus

Starch is a polysaccharide used as a component of cell walls in plants.


True

False

Answers

Answer:

false

Explanation:

is type of carbohydrates

False. Starch is a polysaccharide used as an energy storage molecule in plants, but it is not a component of cell walls.

What are structural component of cell wall?

Cell walls are structural components found in the outermost layers of cells in plants, fungi, and some bacteria. They provide support and protection for the cell, and are composed of a variety of different biomolecules, including cellulose, pectin, and lignin.

Starch, on the other hand, is a complex carbohydrate that is synthesized and stored in the cells of plants, particularly in the seeds, roots, and tubers. It is made up of long chains of glucose molecules and is used by plants as an energy source, particularly during times when the plant does not have access to light for photosynthesis. Starch is not a component of cell walls.

Learn more about cell wall, here:

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i need help with this question

Answers

Research Question: How does various water types affect the growth of plants?

Independent Variable: Type of water

Dependent variable: plant growth

Constants: Time period (2 weeks)

Controls: type of plant, amount of soil, etc (anything you want to remain constant throughout).

Which of the following can cause evolution to occur? (Select all that apply)

Mutation

If organisms choose a mate for a specific reason

People moving into or out of an area

If the population shrinks

Answers

Answer:

MutationIf organisms choose a mate for a specific reasonPeople moving into or out of an areaIf the population shrinks

Explanation:

These factors are the "forces of evolution." There are four such forces: mutation, gene flow, genetic drift, and natural selection.

These are the factors that can cause evolution to occur:

MutationIf organisms choose a mate for a specific reasonPeople moving into or out of an areaIf the population shrinks

Which of these organs are parts of the brain?
а) cerebrum
b) cerebellum
c) brainstem
d) all of above

Answers

Answer:

all of above

Explanation:

The answer is all of above







Which structures do plant cells have for making food that animal cells do not?

Answers

Answer:

chlorophyll is the answer

Chloroplasts are the food producers of the plant cell

pushing a chair requires less energy than pushing than pushing a desk because

A. The surface area of the desk is larger.

B. The desk has less mass then then the chair

C. The chair has less mass then the desk

D. The chair is smaller

Answers

Answer:

c

the chair has less mass then the desk

When and where would you expect to find the highest rate of primary productivity

Answers

Answer: Net primary productivity is the amount of gross primary productivity remaining after respiration, which is about 40 and 85 percent. Sloughs and marshes, as well as tropical rain forests, possess the highest rates of net primary productivity; deserts have the lowest.

Explanation:

I explained on the top-

The highest rate of primary productivity in terrestrial environments takes place in swamps and marshes and in tropical rainforests, and in aquatic environments it takes place in algal beds, estuaries, and reefs.  

• In ecology, primary productivity refers to the rate at which conversion of energy to organic substances takes place by the photosynthetic producers that attain energy and nutrients from the sunlight, and chemosynthetic producers that attain chemical energy via oxidation.  

• The majority of the energy assimilated by plants via the process of photosynthesis is not stored as organic substance, however, is utilized at the time of cellular respiration.  

• In the process, the organic components like proteins, carbs, and fats are dissociated to provide energy in the form of ATP for the metabolic needs of the cells.  

• The energy not utilized is stored in the tissues of the plants for future use and is known as the net primary productivity.  

• The highest net primary productivity in terrestrial environments takes place in marshes and swamps and in tropical rainforests, and in aquatic environments it takes place algal beds, estuaries, and reefs.  

These environments are mainly critical for the sustenance of global biological productivity.

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Which of the following is NOT an example of natural selection? *
A. Plants with thorns are less likely to be eaten by herbivores than other members of the same species that lack thorns.

B. Bacterial populations in hospitals develop resistance to drugs used to combat infection by them.

C. Scientists breed cows that give greater amounts of milk than their ancestors.

D. Fruit fly larvae with an enzyme to break down alcohol are better able to feed on fermenting fruit than those that lack the enzyme.

E. Female fish that produce more eggs leave more offspring than those that produce fewer eggs.

Answers

Answer:

The Answer is C

Explanation:

When scientists breed cows to produce more milk, this has not occured naturally and thus is not natural selection.

Answer:

C. Scientists breed cows that give greater amounts of milk than their ancestors.

Explanation:

The scientists breed cows that give greater amounts of milk than their ancestors is not an example of natural selection. So, option (C) is correct.

which process produce two genetically distinct haploid cells

Answers

Answer:  mitosis

Explanation:

Each Taxonomy (category) gets less and less specific as they go further down the list.

A. True

B. False

Answers

Answer:

B. False

Explanation:

The levels of classification, from broadest to most specific, include: kingdom, phylum, class, order, family, genus, and species.

Answer:

B. False

Explanation:

Taxonomy is the study of the general principles of scientific classification.

Human sperm and egg cells have ____ chromosomes.
A. 42

B. 21

C. 23

Answers

Answer:

They each have 23 chromosomes

Explanation:

Answer:

C. 23

Explanation:

Human sperm and egg cells have 23 chromosomes.

When comparing fossil A to fossil B, which is most likely correct?
Air
Soil
Up
Fossil A
-Fossil B

Answers

Fossil B would most likely be correct in this situation

The skull and vertebrae are part of the _________ in vertebrates. circulatory system endoskeleton nervous system exoskeleton Science

Answers

Answer:

Endoskeleton

Explanation:

Hope this helps!

Answer:

nerveos systum i think is tha anser

Summary of human nutrition ​

Answers

Answer:

Human nutrition is the process of which substances are Transformed into tissues and energy which are used up to mental and physical activities!

Crossing over occurs during Prophase II.

A. True

B. False

Answers

False
crossing over occurs in prophase 1 of meiosis 1. The significance of this crossing over is to ensure cell differentiation. If this occurred in prophase two it means the cells in meiosis 1 will be identical.

Answer:

B. False

Explanation:

Crossing over not occurs in prophase II. It occurs only during prophase I.

I’m confused help me pls

Answers

Claim: This process uses expensive fertilizers and pesticides to grow pest free crops which may be produced in excess. Explain the reasons why people would go against growing wheat this way.

Your answer: Here are 3 reasons that go against growing wheat this way.

1. The fertilizers and pesticides are expensive and cost farmers a lot which takes away from the revenue that farmers make from growing the crops in the first place.

2. Other then fertilizers and Pesticides its a lot of work as you can see on the chart throughout the year there are many things you must do too keep crops bug free and pest free this reason I'm explaining says that taking and doing all of this work for not pests/bugs is too much and not needed.

3. Fungicide Is needed a lot and incredibly expensive when you used/spray it on crops that much and point goes a lot more for large crops too.

If these reasons don't work, find factors that or counterclaims that go against this method of harvesting wheat. (This is what your supposed too do)

El estómago es un órgano parecido a un saco que contiene los alimentos y comienza a digerirlos segregando jugo gástrico. ¿De qué sistema o aparato es parte el estomago? *

Answers

Answer:

Sistema digestivo

Explanation:

Los principales sistemas del cuerpo humano son:

Sistema respiratorio, sistema circulatorio, sistema nervioso, sistema inmune, sistema digestivo, sistema óseo, sistema urinario, sistema reproductor y sistema muscular.

Como dice el enunciado, el estómago comienza a digerir los alimentos haciendo parte, así, del sistema digestivo cuya función es digerir los alimentos y absorber sus nutrientes.

Because it is ______ , fermentation _______ oxygen.



Answers:
aerobic/requires
anaerobic/requires
aerobic/does not require
anaerobic/does not require

Answers

Answer:

anaerobic/does not require

Explanation:

anaerobic occurs in the absence of oxygen

Which of these is an abiotic factor in a rainforest ecosystem?
Tree cover
Biodiversity
Trophic levels
Precipitation

Answers

I'd say precipitation, it won't be alive though so biodiversity is wrong

What was Darwins “
master work” titled

Answers

Answer:

Origin of Species by Means of Natural Selection

Explain how different types of cells help organisms live and grow?
Different types of cells have different jobs that are necessary to keep organisms alive.
Different types of cells are only found in specific types of organisms.
Cells are necessary in order for all organisms to grow big and hunt for their food source.
Cells provide support for all organisms to be able to move.

Answers

Answer:

Different types of cells have different jobs that are necessary to keep organisms alive. And cells also give the living animal more support. They also hold the genetic information of that organism in their nucules. This is with most cells but bacteria cells do not contain nucules.

Adrenergic receptors Select one: a. can be activated by the release of epinephrine. b. have two structural forms - muscarinic and nicotinic. c. when activated stimulate skeletal muscles to contract. d. can be found in both the sympathetic and parasympathetic divisions. e. are activated by the release of acetylcholine.

Answers

Answer:

The correct answer is  a. can be activated by the release of epinephrine.

Explanation:

Epinephrine is a hormone and neurotransmitter naturally secreted by the body through the adrenal glands, synthesized and stored in the adrenal medulla and released into the systemic circulation. Epinephrine is a non-selective adrenergic agonist, stimulating alpha1-, alpha2, beta1, and beta2-adrenergic receptors. The systemic actions of catecholamines are mediated by the binding of these compounds to plasma membrane receptors, of the GPCR type widely distributed throughout the body and known as adrenergic receptors, which are activated by the catecholamines adrenaline (epinephrine) and noradrenaline . These receptors cause different effects depending on the G protein subtypes to which they are associated and the signal transduction mechanism linked to the specific G protein.

What does DNA prove about organism ancestry?
A. Plants and animals are not related to one another

B. That all organisms are related to one another

C. DNA and RNA are completely different forms of genetic coding

D. Extraterrestrial life will have DNA as well

Answers

Answer:

B. That all organisms are related to one another

Answer:

B. That all organisms are related to one another

Explanation:

Fossils, anatomy, embryos, and DNA sequences provide corroborative lines of evidence about common ancestry, with more closely related organisms having more characteristics in common. DNA underlies the similarities and differences in fossils, anatomy, and embryos.

The diagram above illustrates the carbon cycle. Which of the Following components of the diagram represent carbon sinks?
A. marine photosynthesis and respiration
B. volcanoes and soil carbon
C. oceans and fossil carbon
D. factories and photosynthesis

Answers

Answer:

D) Factories and Photosynthesis

what are the effects of a change in protein? there is 3

Answers

Generally, mutations result in reduced protein function or no protein function. A mutation with reduced function is called a leaky mutation because some of the wild-type function “leaks” through into the phenotype. A mutation that results in no protein function is called a null mutation

is eczema recessive or dominant? explain why or how.

Answers

Answer:

When caused by CARD11 gene mutations, atopic dermatitis has an autosomal dominant inheritance pattern , which means one copy of the altered CARD11 gene in each cell is sufficient to cause the disorder.

Explanation:

pls mark brainlest

Why do identical twins separated at birth show DIFFERENCES as seen in the pictures?

A. Their DNA changed because of the different environments they lived in.

B. Different genes were turned on or off because of he different environments they lived in.

Answers

Answer:

B. Different genes were turned on or off because of the different environments they lived in.

Explanation:

Your DNA does not change but it can turn on some parts and off others depending on your enviroment.

Answer:

B. Different genes were turned on or off because of he different environments they lived in.

Explanation:

The identical twins separated at birth show different genes were turned on or off because of he different environments they lived in.

the water in ponds and lakes is...

Answers

Answer:

freshwater

Explanation:

Answer:

Lakes and ponds are inland bodies of standing or slowly moving water.

hope it helps

Which of the following best represents the purpose of fertilizers?

Answers

Answer:

Fertilizer, natural or artificial substance containing the chemical elements that improve growth and productiveness of plants. Fertilizers enhance the natural fertility of the soil or replace the chemical elements taken from the soil by previous crops.

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