Match the description to the job title.
oversees the overall operations of a farm
helps keep farmers up-to-date with industry
technologies and practices
handles the care and condition of livestock
and their habitats
: agricultural extension agent
:: farm manager
:: feedlot manager

HELPP!!! ASAP

Answer:

Separation, Adaptation, Reproductive Isolation

Explanation:

Answer:

The genotype of a black male is XtY

Explanation:

Available data:

So,

females genotypes           females phenotype

males genotype                    males phenotype

Males only carry one X chromosome, so they can only be either black - XtY- or yellow -XTY-.

Females are the only ones that can express the tortoise coat.

The correct way to represent the genotype of a male cat with a black coat - XtY

We know that,

So,

Female cats genotype would be:

Male cats genotype:

1. XtY - black coat male cat

2. XTY - yellow coat male cat.

Thus, The correct way to represent the genotype of a male cat with a black coat - XtY

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Answer mHuman body cells have 46 chromosomes, while human gametes (sperm or eggs) have 23 chromosomes each. A typical body cell, or somatic cell, contains two matched sets of chromosomes, a configuration known as diploid wer:

Explanation:

Answer:

The humans induced emissions of green houses gas by using artifacts that produce CO2.

Explanation:

The humans raise the green houses gas by using machines like cars, trains, and motorized machines that produces big amounts of pollution that contributes to the green houses gas, and that rises the temperature.

it is entirely normal for one testicle to be bigger than the other. Many people find that the right testicle is slightly larger and the left hangs lower. A difference in size is usually nothing to worry about, though it can occasionally indicate a problem.

This is perfectly normal and nothing to worry about. Either side may be slightly larger or hang lower. But be sure to tell a parent (who will let your doctor know) if you have any pain, swelling, or lumps in your testicles.

When a vein in a testicle becomes enlarged, it's called a varicocele. Varicoceles affect up to 15 percent of males. Like varicose veins in your legs, varicoceles may appear bulgy under the skin of your scrotum. They tend to form in the left testicle because the vein on the left side hangs lower.

Answer:  adaptated to the environment

Explanation: Dawin's theory of adaptation explains that the individuals that survive adapt to the environment

Answer:

The correct answer is : male : female = 1:2

Male percent = 33.33%

female percent = 66.66%

Explanation:

In this question, it is given that a lethal gene is carried by X chromosome which is recessive which means will cause death if both copies are recessive for this gene.

The cross between normal man and hybrid or heterozygous women

The gametes: XH and Y from man and XH and Xh from women where Xh is recessive letheal allele.

The cross:

         XH                          Y

XH     XHXH                  XHY

        normal female    Normal male

Xh    XHXh                     XhY

      Carrier female       dead male

This explains that out of three offspring two will be females and one male. Thus the percentage will be:

Male : 1*100/3  = 33.33%

Female : 2*100/3 = 66.66%

Answer:

Mistery fossil genus A belongs to the monkeys of the old world.

Explanation:

Old-World Monkeys:

New-World Monkeys:

Mystery fossil genus A

has been dated to the late Pliocene and early Pleistocene.

Its canines were sexually dimorphic, and it had bilophodont molars.

Its postcranial traits indicate that it was a terrestrial quadruped,

and its overall body size was over 55 lb (25 kg).

Mystery fossil genus B

has been dated to the early Miocene.

It is estimated that adults weighed around 2 lb (1 kg),

with some sexual dimorphism possible in body weight and canine size.

Mistery fossil genus A belongs to the monkeys of the old world.

Answer:

The most common tertiary structures of these proteins are transmembrane helix bundle and beta barrel. The portion of the membrane proteins that are attached to the lipid bilayer consist mostly of hydrophobic amino acids.

Explanation:

.......................

Answer:

1234567890-

Explanation:

Answer:

The ability to maintain vegetation?

Explanation:

Answer: wide corridors

Explanation:

wide corridors provide for greater biodiversity and have less impacts from adjourning land uses and associated edge effects, and provide habitat in their own right.

Answer:

Pomologist

Explanation:

A pomologist is a scientist responsible for ensuring the healthy growth and breeding of fruits and nuts, and the trees and bushes on which they grow. Pomology is the planting, harvesting, storing, processing, and marketing of fruit and nut crops.

Answer:

A. density.

Explanation:

At a front, the two air masses have different densities,

based on temperature, and do not easily mix. One air mass is lifted above the

other, creating a low pressure zone. If the lifted air is moist, there will be

condensation and precipitation. Winds are common at a front.

Answer:

B. Proteins complexed with DNA to form nucleosomes- Histones

I. Used in chain terminator procedure to stop chain elongation- ddNTPs

H. Separation of DNA fragments based on polyanionic nature- Gel electrophoresis

F. Substrates for translation- mRNA

J. A DNA gel for sequencing shows the base sequence of GATCGGA reading from bottom to top. The template sequence can be determined using this information 5' - TCCGATC

Explanation:

1. The DNA in the chromatin is packaged and ordered into structural units known as nucleosomes by theirformation of complexes with proteins called Histones. Histones are small basic proteins rich in the amino acids arginine and lysine.

2. In the chain termination procedure of DNA sequencing, chain elongation is terminated at several points whenever the dideoxynucleotides, ddNTPs are added to the growing sequence of the newly synthesized DNA strand. Because the ddNTPs lack an OH group and 3' position, new nucleotides cannot be added.

3. Gel electrophoresis is a separation technique used to separate DNA fragments based on ability to migrate an electric field. The DNA molecules are negatively-charged (polyanionic) and are separated based on their size with smaller molecules migrating fastest than bigger ones.

4. The messenger RNA, is synthesized from the part of the DNA coding for a functional protein. They serve as the template from which the ribosomes read to make proteins. Thus, they serve as the substrates for translation.

5. The reading of the base sequence from an autoradiogram (DNA gel for sequencing) is from top to bottom in the 5' to 3' direction. Since the template is complementary to it, it will read in the 3' to 5' direction CTAGCCT or TCCGATC in the 5' to 3' direction.

Answer:

CCAGGCC

CCATCGA

GGCCATC

CAT

AGGCCAT

CATCGAG

Explanation:

Shotgun sequencing is a method used to determine the nucleotide sequence of entire chromosomes/genomes. This sequencing method consists of obtaining random DNA fragments which are subsequently classified by bioinformatic tools that ordering them according to overlapping sequences called contigs. In the whole-genome shotgun (WGS) technique, the entire genome of an organism is sequenced, being the critical factor the depth of sequencing, which refers to the quality of the sequencing reads (e.g., a depth of 20X indicates that the genome is sequenced 20 times by a sequencing machine). For the human genome, WGS became available after the completion of the Human Genome Project (HGP), which enabled the generation of a reference sequence for the whole human genome. The steps of the WGS technique are the following:

1. Preparation of isolated chromosomes

2. The DNA is sheared into small fragments

3. The DNA fragments of about 1 kilobase (1000 base pairs) are incorporated into plasmids which are cloned to render pure samples of each DNA fragment

4. The plasmid clones are sequenced by sequencing machines

5. Bioinformatic tools finally are used to link DNA fragments by their overlapping ends

Answer:

22 is correct, 24 is correct, 25 is correct and 28 is correct

Explanation:

Answer:

Except for 24 and 26. . All the statements are correct.

Explanation:

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Explanation:

Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour , carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.

Answer:

Flowering plants reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. ... Cross-pollination happens when the wind or animals move pollen from one plant to fertilize the ovules on a different plant.

Explanation:

I hope this help:)

Answer:

I'll give you tell you just how...

when bees collect nectar, pollens from the stems of the Male reproductive organs of flowers stick to the hairs of their body. when these bees move to next flowers, these pollens get rubbed off onto the stigma of the female reproductive organ of the flower. this particular process the same as carrying sperm cells of the Male reproductive organs of human to the female human leg cell ( ovum )

Answer:

d small pox

Explanation:

Site A is pavement. Site B is bare soil. Site C is a forest, and they are all at the same slope. The percentage of rainwater that becomes runoff is greatest at  Site B. This is further explained below.

Generally, bare soil is simply defined as any soil or sand that is not blanketed by a layer of anything else is considered bare soil.

In conclusion, Site B is bare soil and also has the highest propensity for erosion

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Proximal convoluted tube I thinkkkkkkk

The part of the renal tubule has a membrane that only filters out the very largest of molecules is Proximal Convoluted tube. Thus, option C is correct.

Proximal Convoluted tube has been responsible for the reabsorption of nutrients as well as the substances that the body needs. Loop of Henle is known as the part which is a thin-lobed structure that controls the concentration of the urine.

Distal convoluted tubule performs a very important as it regulates sodium, potassium and pH. Collection duct function it regulates water and sodium reabsorption.

Nitrogenous wastes has been excreted in the urine encompass urea, creatinine, ammonia, and uric acid.Nephrons start withinside the cortex; the tubules dip right all the way down to the medulla, then go back to the cortex earlier than draining into the accumulating duct.

Thus, option C is correct.

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Complete question:

In Drosophila the anterior-posterior axis is established by

a. The distribution of the RNA-binding transcription factor called bicoid and the protein nanos localized in the anterior and posterior poles of the embryo, respectively

b. The distribution of a gene that codes for an RNA-binding protein called nanos localized in the anterior pole of the embryo and a transcription factor called bicoid localized in the posterior pole of the embryo

c. The distribution of a gene that codes for an RNA-binding protein called nanos localized in the posterior pole of the embryo and a transcription factor called bicoid localized in the anteror pole of the embryo

d. The distribution of the RNA-binding transcription factor called bicoid and the protein nanos localized in the posterior and anterior poles of the embryo, respectively

Answer:

c. The distribution of a gene that codes for an RNA-binding protein called nanos localized in the posterior pole of the embryo and a transcription factor called bicoid localized in the anterior pole of the embryo

Explanation:

When the Drosophila zygote develops, it goes through different stages until it gets to the blastula stage. At this point, there are pole cells that determine the axis of the organism -the anteroposterior and the dorsoventral axis-.

A two hours old embryo has already determined its two axes. A ten hours old embryo has already determined its body segments. And from there, each of them develops a structure that turns to be their identity.

Different genes determine the polarity of the egg.

Dorsoventral genes place in the superior and inferior parts of the egg and determine the development of dorsal and ventral tissues.

The same happens with anteroposterior genes.

The polarity genes of the egg are genes of maternal effects.

While the bicoid and nano genes are expressed in the ovary, the hunchback gene is expressed in the embryo. This last one is activated or inhibited by the foreign ones.

Bicoid and nano genes gradient regulate the expression of the gap, pair-rule, and segment polarity genes.

During muscle contraction, the muscle cell membrane becomes temporarily permeable to sodium (Option b is correct).

In conclusion, during muscle contraction, the muscle cell membrane becomes permeable to sodium ions (Option b is correct).

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Answer:

it can help them by seeing what birds are in your area an any new species that might have traveled to your area but it can also help scientist learn about some of the birds.

Birds contributing their data go beyond identifying birds to recording their sightings and additional details. then they deposit their records online in a permanent archive.

Answer:

DNA: TAC CAT GGA ATT ACT

RNA: AUG GUA CCU UAA UGA

Amino acids: met- val-leu-stop-stop

Explanation:

DNA: T =A to RNA

DNA: A = U to RNA.

Use the genetic code to find the amino acids.

starting from left-up-right, by three codons. use the image below.

Answer: Global Climate Change. comes from precipitation. Too little precipitation can result in dry soil, shallow streams, and shortages of municipal water supplies. However, too much precipitation can also have a negative impact on human activities, business and industry, agriculture, and the environment. As moist air is forced up the windward slope it expands and cools, eventually causing water droplets to condense when the air is saturated. These droplets form clouds and grow to produce rain or snow that typically falls out on the windward side of the range. ... As air approaches the topography, it slows down.

Explanation:

Precipitation affects the topology of the earth positively and negatively ( excess precipitation leads to soil erosion while moderate precipitation repairs broken/dry soil surfaces making it fertile )

Precipitation has a positive and negative effect on the topology of the earth because excessive precipitation like heavy rainfall causes flooding and the heavy movement of flood water, washes away the surface soil ( erosion ) which affects the topology of the earth negatively.   while

Moderate precipitation repairs dry and broken soil surfaces making the topology of the earth fertile, supporting the growth of plants and inhabitation of animals .

Hence we can conclude that precipitation affects the topology of the earth positively and negatively.

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