____have bodies that are tall and thin.

Answers

Answer 1
Answer:

Ectomorphs typically have bodies that are tall and thin. The correct option is A.

Ectomorph is a term used in somatotype theory, a classification system that categorizes individuals based on their body types.

Ectomorphs typically have bodies that are tall and thin, with a lean and slender build.

They tend to have a fast metabolism, difficulty gaining weight or muscle mass, and a narrower bone structure.

Ectomorphs are often associated with traits such as being ectomorphic and having a "skinny" or "lanky" physique.

Mesomorphs have a more athletic and muscular body type. They tend to have a naturally muscular build, with well-defined muscles, broader shoulders, and a narrower waist.

Endomorphs are characterized by a higher proportion of body fat and a rounder body shape.

Thus, the correct option is A.

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Complete question:

___have bodies that are tall and thin.

A. Ectomorph

B. Mesomorph

C. Endomorph

Answer 2
Answer: Ectomorphs have bodies that are tall and thin.

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Determine the predicted phenotype ratio in children of dihybrid parents that are right handed and possess free earlobes

Answers

The answer is 9 : 3 : 3 : 1

First, it must be taken into consideration that these two traits are not simple "one gene - two alleles", but there is an influence of several genes. However, let's imagine, for this question, that these are simple examples of dominant and recessive alleles of one gene.
R - dominant allele for right-handedness
r - recessive allele for left-handedness
RR - a right-handed individual
Rr - a right-handed individual (because R is dominant over r)
rr - a left-handed individual

E - dominant allele for free earlobes
e - recessive allele for attached earlobes
EE - an individual with free earlobes
Ee - an individual with free earlobes (because E is dominant over e)
ee - an individual with attached earlobes

Now, we have dihybrid parents. Since hybrid individuals are those that carry two different alleles of one gene, dihybrid individuals are those that carry two different alleles of two genes (di- means two).
So, the parents are Rr and Ee, which can represent as RrEe. For each gene, they can give either dominant or recessive allele.
Take a look at the attached image. There are total 16 genotypes of the children. The children that are right handed and possess free earlobes are marked with yellow color. There are in total 9 of them. The children that are right handed and possess attached earlobes are marked with  green color. There are in total 3 of them. The children that are left handed and possess free earlobes are marked with  blue color. There are in total 3 of them. At last, there is only one child (marked white) that is left handed and possess attached earlobes.

A scientist isolates a gene from a human cell that codes for a specific protein. The gene is inserted into a bacterial plasmid in order to mass produce the protein for medical purposes. The next step in mass production of the protein would be _____________ of the bacterium containing the modified plasmid.

Answers

The correct answer for the question that is being presented above is this one: "Synthesized." A scientist isolates a gene from a human cell that codes for a specific protein. The gene is inserted into a bacterial plasmid in order to mass produce the protein for medical purposes. The next step in mass production of the protein would be synthesized of the bacterium containing the modified plasmid.

The answer is cloning.

Plant cells have a large central vacuole, which animal cells lack. What function does this organelle perform

Answers

Answer:

It provides rigidity to the plant cell when filled with water.

Explanation:

They store water, wastes, nutrients, among other things.
Hope that helped you.

Johannes wants to know whether soil, water, or both are needed for plant growth. He chooses to conduct experiments on a willow tree for five years to answer his question. How can his experimental methods be changed to improve his experiment?

Answers

Answer : He needs to use a larger sample size to improve his experiment.

Explanation : As Johannes wants to know whether soil, water, or both are needed for plant growth. He chooses to conduct experiments on a willow tree for five years. To get the improvement in his experimental methods he can choose a larger size of the sample and test its results. As larger size will allow him to gauge accurately on the smaller factors and results will be more reliable. Larger sampling will ensure the homogeneity of the test sample, which will yield better and reliable results.

Johanneswants to know whether soil, water, or both are needed for plantgrowth. He chooses to conduct experiments on a willow tree for fiveyears to answer his question. His experimental methods can be changedby testing more factors in the environment. This will improve hisexperiment.


Ihope it helps, Regards.

Michelle wants to classify an organism that she is studying in lab. The organism is multicellular, makes its own food, and is unable to move around its environment. The organism that Michelle is studying can most likely be classified into Domain _______.

Answers

The domain in which this organism is included is Eukarya. As the name indicates, Eukarya domain includes all the organisms which are made up of eukaryotic cells. Eukaryotic cells are kind of cells which have well defined nucleus and membrane bound organelles.

Further, this domain named Eukarya comprises 4 kingdoms which are mentioned as under:

1) Plantae

2) Animalia

3) Fungi

4) Protista

These 4 kingdoms include several organisms of varying characteristics but an organism having the mentioned characteristics i.e. multicellular, makes its own food, and is unable to move around its environment is specifically included in Kingdom Plantae.

It's domain is eukarya. And it's kingdom is Archaeplastida or plantae.

Which of the following are characteristics of prokaryotes?single-celled structure
flagella for movement
distinct nucleus
membrane-bound organelles

Answers

The characteristics of prokaryotes include: single-celled structure and they have flagella for movement. Membrane-bound organelles such as mitochondria, chloroplast, nucleus and etc. are absent in prokaryotes. Examples of organisms that are considered as prokaryotes are bacteria and algae.

Final answer:

Prokaryotes are single-celled organisms that use flagella for movement. They do not have a distinct nucleus or membrane-bound organelles, unlike eukaryotes. Their DNA is often circular and not organized in chromosomes.

Explanation:

The characteristics of prokaryotes listed include their being single-celled and their use of flagella for movement. However, prokaryotes don't have a distinct nucleus, rather they have a region known as nucleoid where their DNA is located. Also, they lack membrane-bound organelles. They are simpler in structure compared to eukaryotic cells. Their DNA is often circular and not organized in chromosomes as in eukaryotes.

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