Biology College

20 POINTS PLEASE HELP

Answers

Answer 1

figure it out

Explanation:

ye Cuz I no do work for u

Answer 2

6. Micro evolution

7. Fossils

8. Charles Darwin

9. Genomic

10. Vestigial

11. Homologous

Related Questions

Mutations cause changes in _____.

A) elements

B) proteins

C) compounds

D)essential nutrients

Answers

Answer: A

Explanation:

The organ that controls your internal clock is called...

Answers

Answer:

The circadian biological clock is controlled by a part of the brain called the Suprachiasmatic Nucleus

Explanation:

That should be right

what defies a species?

Answers

Answer:

their color, their size, their life I guess

explain the origin of lassa fever

Answers

Answer:

Lassa fever (LF) is an acute and sometimes severe viral hemorrhagic illness endemic in West Africa. The disease was first recognized in Nigeria in 1969. Humans contract Lassa virus (LASV) primarily through contact with contaminated excreta of the rodent Mastomys natalensis, which is the natural reservoir.

Explanation:

Lassa fever is an acute viral illness that occurs in west Africa. The illness was discovered in 1969 when two missionary nurses died in Nigeria. The virus is named after the town in Nigeria where the first cases occurred

21. What determines the kind of genes an organism
possesses?

Answers

Answer:

The kind of genes an organism possesses is determined by the order of the nucleotide bases in the organism's DNA.

Answer:

The kind of genes an organism possesses is determined by the order of the nucleotide bases in the organism's DNA. ... The order of bases as you go down the rungs of the ladder determine what genes an organism will have, and therefore, what traits it will have.

Explanation:

Fun facts:

Genes carry the information that determines your traits which are features or characteristics that are passed on to you — or inherited — from your parents. Each cell in the human body contains about 25,000 to 35,000 genes. ... And chromosomes are found inside cells. Your body is made of billions of cells.

The base of the flower where it is attached to the rest of the plant is the:
1)pistil
2)receptacle
3)fruit

Answers

Answer:

The base of the flower where it is attached to the rest of the plant is the:Receptacle

Peduncle: The stalk of a flower. Receptacle: The part of a flower stalk where the parts of the flower are attached.

Explanation:

Flowers may be directly attached to the plant at their base (sessile—the supporting stalk or stem is highly reduced or absent). The stem or stalk subtending a flower is called a peduncle.

Answer:

receptacle

Explanation:

it is that part of the flower to which the stalk is attached to.it is small and found at the centre of the base of the flower

What are the parts of the chloroplast? What does each part do?

Answers

The chloroplast has an inner and outer membrane with an empty intermediate space in between. Inside the chloroplast are stacks of thylakoids, called grana, as well as stroma, the dense fluid inside of the chloroplast. These thylakoids contain the chlorophyll that is necessary for the plant to go through photosynthesis.

Which of the following best explains why the Galápagos islands are still used for evolution research today?

A) The diversity in environments on each island provides many opportunities to study how related organisms
have adapted over time.

B) The species diversity on the islands is one of the largest in the world, allowing for many examples of
evolution

C) The islands are easy to access from the mainland, and the climate is particularly well suited for research all
year long

D) Most species found on the islands are only found in this geographic area, which allows researchers to easily
isolate their studies.

Answers

Pretty sure it is D. Which makes it easier to study a group of species and find out what makes them flourish in that environment.

The following best explains why the Galápagos islands are still used for evolution research today most species found on the islands are only found in this geographic area, which allows researchers to easily isolate their studies.

Galápagos are a extraordinary vicinity to observe evolution, still, because, remarkably, numerous islands and their population are near being withinside the completely herbal state, with very little have an impact on of human activities,” says the evolutionary biologist and Princeton University professor emeritus Peter Grant.

What is unique of Galápagos islands?

Six hundred miles off the coast of Ecuador lie the volcanic islands of the Galápagos, well-known for a wealth of particular flora and animals discovered nowhere else withinside the world. The Galápagos Islands have been the supply of Darwin's concept of evolution and stay a valuable residing laboratory for scientists today.

Thus it is well explained.

To learn more about the diversity refer to link ;

https://brainly.com/question/1136627

why do you think Harvey placed the sea urchin cells in a hypersonic solution?

Answers

Harvey placed the sea urchin cells in a hypersonic solution in order to see the behaviour of the cell in the hypersonic solution.

What Harvey placed the sea urchin cells in a hypersonic solution?

In 1940 Ethel Brown Harvey evolve a technique for separating embryonic sea urchin cells. She took a pair of embryonic cells to develop from the first cell division after Harvey's fertilization. She settles the pair of cells in a hypertonic solution, carrying double the amount of salt as that contained in seawater. Most sea urchins produce a group of early embryonic cells which is known as micromeres. Small blastomeres Harvey that form by unequal cell division at the vegetal pole of the early embryo. Harvey Sub-Sea is the first that indicated Maritime Labor Convention compliant.

So we can conclude that Ethel Brown Harvey developed a technique for dividing embryonic sea urchin cells.

Learn more about Harvey here: https://brainly.com/question/28180563

#SPJ1

Why do we have to get the flu shot every year ?

Answers

Answer:

Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. New flu vaccines are released every year to keep up with rapidly adapting flu viruses.

What are the sum of all life functions

Answers

Answer:

Regulation, Control, Coordination, Growth, Nutrient, Nutrition, Homeotasis

Organic compounds are primarily
created from one element. Which
element forms the basis of organic
compounds?

Answers

carbon is the basis of organic compounds

Click and drag the terms on the left to accurately complete the sentences on the right. Then, arrange the sentences from top to bottom in order of least common to most common.
T cells, B cells, lymph node, destroyed, macrophage, immune response, antigen presenting cell, bound to transport proteins
a) Infected or malignant cells are then _______ before they can do further harm to the body.
b) The antigen presenting cell displays the antigen to the _______.
c) The T cells initiate the ________ if the antigens are viral proteins or abnormal antigens.
d) The _________ encounters and processes the antigen.
e) With the antigen, the antigen presenting cell migrates to the nearest ____________.

Answers

Answer:

d) The antigen-presenting cell encounters and processes the antigen.

e) With the antigen, the antigen-presenting cell migrates to the nearest lymph node.

b) The antigen-presenting cell displays the antigen to the T cells.

c) The T cells initiate the immune response if the antigens are viral proteins or abnormal antigens.

a) Infected or malignant cells are then destroyed before they can do further harm to the body.

Explanation:

The antigen-presenting cells (e.g., dendritic cells, macrophages) are cells of the immune system that mediate cellular immune responses by processing and presenting antigens (i.e., peptides components of pathogens) to T lymphocytes. The antigen-presenting cells travel through lymphatic vessels from the site of infection to the lymph nodes where they present antigens to naive T cells, i.e., T cells that have matured but have not yet encountered their corresponding antigens. This presentation facilitates the clonal expansion of T cells that are specific for the antigen which acquire effector functions in order to destroy infected cells. This process is known as immune clearance and is associated with the apoptosis of antigen-specific T cells.

Question 20 of 34 Which of the following do all living things share? O A. All living things are made of the same elements. O B. All living things think. ОО C. All living things breathe oxygen. O D. All living things move.

Answers

Answer:

All living things think.

Explanation:

all living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

What is the meaning of botany?

Answers

Answer:

the scientific study of the physiology, structure, ecology, classification, and economic importance of plants.

The scientific study of plants

The Milky Way galaxy looks like a band of light across the sky. Which observation would provide the best view of this band of light without a telescope

Answers

Answer:

The correct answer is - observing on any dark, clear night.

Explanation:

We and many other plants and our sun present in a galaxy, called the Milky Way as it appears as a milky band of light in the sky when you see it in a really dark clear area night.

It can be observed easily without the help of a telescope all it requires a dark but clear night without clouds. It looks like a hazy band or cloudy white or milky color band in the sky.

The given statements concern the relationship between mitochondrial hydrogen ion concentration and energy storage as ATP during oxidative phosphorylation. Classify each statement as either accurate or inaccurate.

a. Hydrogen ions cannot freely pass through the inner mitochondrial membrane.
b. H+ concentration is lower in the mitochondrial matrix than in the intermembrane space.
c. Energy is generated as a result of the difference in hydrogen ion concentration between the mitochondrial matrix and the cytoplasm.
d. ATP synthase uses energy from ATP to move H + into the mitochondrial matrix.

Answers

Solution :

The following statements regarding the relationship between the mitochondrial hydrogen ion concentration and energy storage in the form of ATP during the process of oxidative phosphorylation are :

ACCURATE :

a. Hydrogen ions cannot freely pass through the inner mitochondrial membrane.

b. H+ concentration is lower in the mitochondrial matrix than in the intermembrane space.

INACCURATE :

c. Energy is generated as a result of the difference in hydrogen ion concentration between the mitochondrial matrix and the cytoplasm.

d. ATP synthase uses energy from ATP to move H + into the mitochondrial matrix.

A partly full paint can has 2.75 liters of paint left in it. What is volume of the paint in cubic
centimeters?
(3)
A) 2.75 x 10-3 cm3
C) 275 x 10-3 cm3
E) 27.5 x 103 cm3
B)
2.75 cm
D)
2.75 x 103 cm

Answers

Answer:

2.75 x 10³ cm³

Explanation:

Volume can be measured in both liters (L) and cubic centimeters (cm³), however,

1 liter = 1000cm³

According to this question, a partly full paint has 2.75 liters of paint left in it.

Since 1 liter = 1000cm³

2.75 liters = 2.75 × 1000

2.75 × 10³ cm³ is left.

Explain if you are bothered by working conditions at Foxconn plants. Do you worry that the production of a phone might have contributed to a death of a worker

Answers

Answer:

Yes.

Explanation:

Yes, I am bothered by working conditions at Foxconn plants and do worry about the production of a phone that might have contributed to a death of a worker. If the working conditions are not satisfactory and the life of the worker are in danger so I worry about the lives of workers that work at Foxconn plants because of unsafe condition of work and stop the workers from working until safety measures should be implemented.

What type of microscope can detect density differences and thereby see organelles in living cells

Answers

Answer:

fluorescent microscope

Explanation:

fluorescent microscope. phase-contrast microscope

What is an example of a symbiotic organism?

Answers

Answer:

The symbiotic relationship between an anemone (Heteractis magnifica) and a clownfish (Amphiron ocellaris) is a classic example of two organisms benefiting the other; the anemone provides the clownfish with protection and shelter, while the clownfish provides the anemone nutrients in the form of waste while also scaring

Explanation:

I asked the same question

3. The evolutionary pathways of ten different species are represented in the diagram below.
E
D
F
Time
G
Н,
B
Which two species are the most closely related?
A and F
G and
E and I
C and D

Answers

Answer:

Explanation:

when counting the number of organisms that differentiate between e and I, this answer gives the smallest number of organisms

Which of these provides the best evidence for the plate tectonic theory?

The rise of magma by the convergence of earths plates

The destruction of earths magnetic field by the rotation of earths core

The variations in the age of rocks at different distances from the mid ocean ridges

The difference in the shapes of the Atlantic ridge and the coastlines of continents

Answers

Answer: C

Hope this helps!

describe how insect pollinated flower are adampted to pollination

Answers

Answer:

Pollen grains are also adapted for insect pollination. Some pollen grains are hairy or spiky, and others are sticky, so they attach to the insect. The anthers dangle in the breeze, and the pollen is blown away. The pollen grains are very small and light so they are easily carried on the wind.

Explanation:

hope it helps

A genetic trait might be caused by incomplete dominance if:
A. red-, white-, and pink-flowered plants grow from the seeds of a
blue-flowered plant.
B. pinks, white, and red-flowered plants grow from the seeds of a
pink-flowered plant.
C. two plants with red flowers are the parents of plants with either
red flowers or white flowers.
O D. two plants with red-and-white flowers are the parents of plants
with either white flowers or pink flowers.

Answers

B. Pinks white and red flowered plants grow from seeds of a blue one

Which of the following statements about the use of synthetic polynucleotides in cracking the genetic code is true?
a) Particular codons are generated in predictable ratios with random RNA polymers containing specific ratios of different nucleotides.
b) Poly(A) RNA directs the synthesis of only polylysine in vitro.
c) Three different amino acids are incorporated into peptides when synthetic polymers of only one nucleotide are used to synthesize the RNA primer.
d) The codon table was completed by using RNA polymers of defined sequences.

Answers

Answer:

a) Particular codons are generated in predictable ratios with random RNA polymers containing specific ratios of different nucleotides.

b) Poly(A) RNA directs the synthesis of only polylysine in vitro.

d) The codon table was completed by using RNA polymers of defined sequences.

Explanation:

A polynucleotide molecule is defined as the biopolymer which is composed of thirteen nucleotide monomers or more monomers which is covalently bonded in the chain.

While using the synthetic polyneuclitide in the cracking of the genetic code, the translation of a [tex]\text{poly(A) RNA tail}[/tex] that results in synthesis of the poly-lysine in the lab.

Some of the particular codons are produced by some specific ratios of a different nucleotides. This can be present in the different RNA polymers. Codon table includes the RNA polymers that contains nucleotides in some specific ratios.

Thus, the options (a), (b) and (d) are correct.

examples of receptors

Answers

Answer:

Chemoreceptors detect the presence of chemicals.

Thermoreceptors detect changes in temperature.

Mechanoreceptors detect mechanical forces.

Photoreceptors detect light during vision.

More specific examples of sensory receptors are baroreceptors, propioceptors, hygroreceptors, and osmoreceptors.

Explanation:

Answer:

Photo-receptors detect light during vision.

Explanation:

When there is NO change in the allele frequency, this is called genetic

Answers

either genetic frequency or genetic drift . genetic drift takes place when the occurrence of variant forms of a gene, called alleles, increases and decreases by chance over time; genetic frequency is an allele that’s defined as the total number of copies of that allele in the population divided by the total number of copies of all alleles of the gene. HOPE THIS HELPS!!!

The DNA template strand of a gene near a promoter reads 5'-TAGAACGCCTCGAAATTTCATACT-3' The amino terminus of the encoded protein whose translation starts in this region is:

Answers

Answer:

The N-terminal aminoacid is Metionin.

Explanation:

Before answering the question, let us remember the meaning of the term amino terminus. Terminus refers to the extremes of the polypeptide. During translation, rRNA and tRNA read mRNA in 5´ to 3´ direction. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.

Conventionally, proteins are written from left to right, beginning by the N-terminal extreme carrying the free amine group, and ending by the C-terminal extreme carrying the carboxyl free group. However, we need to know that the free amine group actually places at the end of a protein.

Transcription:

Transcription occurs in the nucleus where the template DNI strand is read in direction 3´→ 5´ to build the mRNA molecule in direction 5´→ 3´.

template DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'