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3 years ago

What traits and trends characterize the primate lineage? Explain.

Biology

1 answer:

jenyasd209 [6]3 years ago

6 0

Answer:

Hands and feet with 5 fingers
Generalized skeleton
Large brain

Explanation:

The order primate holds 300 or more species including monkeys, humans, gorillas, chimpanzees among others. The species included in this order share anatomic and functional characteristics such as:

Hands and feet with 5 fingers and opposable thumbs, for grabbing, holding a grip for a better arboreal lifestyle. Even though in some species such as humans these opposable thumbs in feet don't longer exist.

Plantigrade feet, which means that the toes and metatarsals are flat on the ground while walking.

Collarbone or clavicle present.

Nails instead of claws in the large majority of species.

Color vision.

Two brain hemispheres well developed, for special traits like social behaviors and better eye-hand coordination among others.

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Choose the stage that best matches the description given.

Julli [10]

Forensic entomology identifies the fauna on a dead body to make predictions about the death. C) ants, mites, and beetles frequent the body 3-17 days after death.

<h3>What is forensic entomology?</h3>

Forensic entomology is the forensic branch that studies the cadaveric fauna associated with a dead body to make scientific conjectures.

Cadaveric fauna usually includes different forms of invertebrate species and their stages of development. There is a predictable sequence in which different species arrive at the dead body and inhabits it, and this sequence depends on the time the individual has been dead and the decomposition state of the body.

The species inhabiting the body and their developmental stage can be used as significant data to estimate the time of death, the region, and the circumstances under which the individual died.

Stages of decomposition depend on the region, but we can make this generalization,

1-3 days ⇒ adult flies and eggs, and a few larvae

3-5 days ⇒ bacteria and other microorganisms act. The decomposing body produces gasses that inflate the carcass. Larvae penetrate the body, release the gasses, and the carcass collapses.

5-15 days ⇒ Maggots, flies, ants, and beetles have already reached the dead body.

15-25 days ⇒ Most flesh is already consumed, and the body is in the advanced stage of decay. Although the number of invertebrates is low, the diversity of species is great. There are carpet beetles, ants, skipper flies, and mites.

25-50 days ⇒ Almost dry body with no flesh. Some arthropods are still feeding on it.

>50 days ⇒ Bones

Note: Remember that these are approximations and might vary according to the region and environmental conditions, such as temperature, precipitation, humidity, etcetera.

According to this information, we can say that ants, mites, and beetles frequent the body in warmer climates between 3 and 17 days. Option C.

Learn more about forensic entomology at

brainly.com/question/2929449

brainly.com/question/11034714

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2 years ago

What feature of alveoli adapts them to efficient gas exchange?

Georgia [21]

D is the correct answer. - A dense network of capillaries surrounds them.

Capillaries are very small about 1 cell thick which makes them more suitable to exchanging gases rather than a vein or an artery.Capillaries allow the exchange of gases, nutrients and fluids by the process of diffusion between the body and the body tissues.

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4 years ago

Can please answer any question from the file

Kruka [31]

Answer No 1) The correct option is a. Structures B and C are located within Structure A and code for inherited traits.

Answer No 2)

According to the most widely accepted Watson and Crick's model of DNA, the DNA comprises of two strands.

The backbone of the DNA strands is made up of sugar-phosphate.

The two strands are joined together by the hydrogen bonds in between the nitrogenous bases of the two strands.

The two strands of the DNA are twisted around each other and form a helix. It is due to the hydrogen bonds between the two strands and their twisting that the DNA is called the double helix. 

Answer 3)

DNA is like a recipe because the sequence of the DNA is just like the ingredients of a recipe which will be added to form the right organism.

The DNA contains nitrogenous bases which will code for the traits of a particular organism with its specific characteristics just as different ingredients make up a different recipe.

If DNA changes abnormally, then the traits of an organism will be affected. Serious complications might release due to the DNA changing abnormally.

Answer 4)

Differences between gene and allele

1) Gene are a part of the chromosomes. Alleles are a part of the gene.

2) Genes determine the expression of a trait. Alleles will determine the variations which can arise in a particular trait.

3) Genes will produce a particular protein whereas alleles will produce a particular genotype.

Similarities

Both the gene and allele will determine the particular genotype and the resulting phenotype of the organism.

Answer 7)

a) Claim: Yes, genes do affect physical features of an organism.

Evidence: The genotype produces the resulting phenotype.

Reason: The genotype of an organism is determined by the particular alleles of the genes which make up the organism. The expression of these genes results in the physical characteristics of the organism.

b) Claim: Some DNA mutations are heritable, other are not.

Evidence: Those mutations might be carried along the germ line and hence can be inherited.

Reason: Some mutations are carried from the parents to the children and these mutations will be heritable. Other mutations might not be carried along the germ line and will non-heritable.

Answer 5)

Drawing of the chromosome is shown in the attachment.

A chromosome is made up of different genes. Each particular gene is made up of a allele pair. The genes comprise of a section of a DNA.

This means that all the array of chromosomes in an individual will comprise of the entire DNA.

Each cell in an organism comprises of the particular number of chromosomes which are essential for the survival of that organism, Only the sex cells contain half the number of chromosomes of the somatic cells.

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